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IO Expanders

IO Expanders enable the expansion of input/output capabilities for microcontrollers, allowing for greater connectivity with peripherals. Key attributes include Clock Frequency, Current, and Interrupt Output, which are essential for ensuring compatibility and performance. These components are commonly used in new product design and prototyping.

1,100 active parts
33 manufacturers
29 distributors
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What are IO Expanders ?

IO Expanders are integrated circuits that increase the number of I/O ports available on a microcontroller, allowing for more devices to be connected. They are widely used in applications such as wireless and RF signal chains, production electronics assembly, and engineering evaluation. Important specifications include Clock Frequency, which affects data transfer rates; Current, which determines power consumption; and Output Type, which influences signal compatibility. It's crucial for procurement teams to validate lifecycle status and consider alternate-source options to mitigate sourcing risks.

Parts in this category

Compare stocked parts across manufacturers and distributors, then add lines to your RFQ.

Part & Mfr Total Stock Pricing & RFQ AEC Qualified Applications Clock Frequency Current EEPROM Size ESD Protection Features Halogen Free Industrial Grade Input Voltage Interface Interrupt Output Latch-up Performance Lead Spacing Lead Style Mounting Type Number of Channels Number of I Number of I/O Operating Temperature Operating Temperature Range Operating Voltage Output Current Output Type Output Voltage Package / Case Package Quantity Power Dissipation Storage Temperature Supplier Device Package Supplier Package Supply Current Supply Voltage Tape & Reel Voltage Voltage Supply
PCF8575PW
PCF8575PW
Texas Instruments
26,753
Across 4 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,524 - -
Romaks Technologies 22,600 - -
Xingangxin 1,081 - -
Smaxon Electronics 548 - -
Price on request
26,753
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,524 - -
Romaks Technologies 22,600 - -
Xingangxin 1,081 - -
Smaxon Electronics 548 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - - 4.5V ~ 5.5V -
PCA6408AHKX
PCA6408AHKX
Download Datasheet for PCA6408AHKX
NXP Semiconductors
25,852
Across 4 distributors
Distributor Stock MOQ Country
Braun Electronic Components 8,818 - -
MW.FEP S.p.A. 8,818 - -
Risen Electronics 2,000 - -
Xingangxin 6,216 - -
Price on request
25,852
Distributor Stock MOQ Country
Braun Electronic Components 8,818 - -
MW.FEP S.p.A. 8,818 - -
Risen Electronics 2,000 - -
Xingangxin 6,216 - -
No - 400 kHz 10mA, 25mA - - POR - No - I²C, SMBus Yes - 1.8 mm - Surface Mount - 8-bit - -40°C ~ 85°C - - - Push-Pull - - - - °C ~ °C 16-XQFN (1.8x2.6) - - - No 1.65 V ~ 5.5 V -
MAX7317ATE
MAX7317ATE
Analog Devices / Maxim Integrated
24,884
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 22,600 - -
Xingangxin 2,284 - -
Price on request
24,884
Distributor Stock MOQ Country
Romaks Technologies 22,600 - -
Xingangxin 2,284 - -
- - - 20mA - - POR - - - SPI No - - - Surface Mount - 10 - -40°C ~ 125°C - - - Open Drain - - - - - 16-TQFN-EP (3x3) 16-TQFN-EP (3x3) - - No 2.25V ~ 3.6V -
PCA9555PWR
PCA9555PWR
Texas Instruments
24,004
Across 3 distributors
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 18,664 - -
Xingangxin 1,340 - -
Smaxon Electronics 4,000 - -
Price on request
24,004
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 18,664 - -
Xingangxin 1,340 - -
Smaxon Electronics 4,000 - -
- - 400 kHz 10mA, 25mA - 2000-V Human-Body Model (A114-A) POR - - - I²C, SMBus Yes Exceeds 100 mA Per JESD 78, Class II 4.4 mm - Surface Mount - 16 - -40°C ~ 85°C -40 to 85 °C - - Push-Pull - - - - - 24-TSSOP - - - - 2.3V ~ 5.5V -
TCA6416ARTWR
TCA6416ARTWR
Texas Instruments
23,560
Across 7 distributors
Distributor Stock MOQ Country
Braun Electronic Components 112 - -
MW.FEP S.p.A. 231 - -
Bristol Electronics 97 - -
Rayichip 555 - -
PROSOFT ELECTRONICS 1,493 - -
Xingangxin 1,669 - -
Smaxon Electronics 19,403 - -
Price on request
23,560
Distributor Stock MOQ Country
Braun Electronic Components 112 - -
MW.FEP S.p.A. 231 - -
Bristol Electronics 97 - -
Rayichip 555 - -
PROSOFT ELECTRONICS 1,493 - -
Xingangxin 1,669 - -
Smaxon Electronics 19,403 - -
- - 0.4 MHz 10mA - 2000V POR; Adjustable I/O level; Configuration registers; Interrupt pin; Reset pin; Yes - - - I2C, SMBus Yes 100mA 4 mm - Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - - 24-WQFN (4x4) 24-WQFN (4x4) - - - 1.65V ~ 5.5V -
MAX7300AAX+
MAX7300AAX+
Download Datasheet for MAX7300AAX+
Analog Devices / Maxim Integrated
22,622
Across 2 distributors
Distributor Stock MOQ Country
Speed Components Ltd 22 - -
Romaks Technologies 22,600 - -
Price on request
22,622
Distributor Stock MOQ Country
Speed Components Ltd 22 - -
Romaks Technologies 22,600 - -
- - 400 kHz 4.5mA, 10mA - - - - - - I2C Yes - - - Surface Mount - 28 - -40°C ~ 125°C - - - Push-Pull - - - - - 36-SSOP 36-SSOP - - - 2.5V ~ 5.5V -
MAX7301ATL+
MAX7301ATL+
Download Datasheet for MAX7301ATL+
Analog Devices / Maxim Integrated
22,605
Across 2 distributors
Distributor Stock MOQ Country
MW.FEP S.p.A. 5 - -
Romaks Technologies 22,600 - -
Price on request
22,605
Distributor Stock MOQ Country
MW.FEP S.p.A. 5 - -
Romaks Technologies 22,600 - -
- - 26 MHz 4.5mA, 10mA - - - - - - SPI Yes - 6 mm - Surface Mount - 28 - -40°C ~ 125°C - - - Push-Pull - - - - - 40-TQFN (6x6) - - - - 2.5V ~ 5.5V -
PCF8575DBQR
PCF8575DBQR
Texas Instruments
22,600
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 22,600 - -
Price on request
22,600
Distributor Stock MOQ Country
Romaks Technologies 22,600 - -
- - 400 kHz 1mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 16 - -40°C - - - Push-Pull - - - - - 24-SSOP - - - - 2.5V -
MAX7301ATL+T
MAX7301ATL+T
Download Datasheet for MAX7301ATL+T
Analog Devices / Maxim Integrated
22,154
Across 6 distributors
Distributor Stock MOQ Country
Braun Electronic Components 2,360 - -
MW.FEP S.p.A. 50 - -
Romaks Technologies 16,436 - -
Bristol Electronics 60 - -
Xingangxin 3,235 - -
Trace Tec 13 - -
Price on request
22,154
Distributor Stock MOQ Country
Braun Electronic Components 2,360 - -
MW.FEP S.p.A. 50 - -
Romaks Technologies 16,436 - -
Bristol Electronics 60 - -
Xingangxin 3,235 - -
Trace Tec 13 - -
- - 26 MHz 10mA, 4.5mA - - - - - - SPI Yes - 6 mm - Surface Mount - 28 - -40°C ~ 125°C - - - Push-Pull - - - - - 40-TQFN (6x6) - - - - 2.5V ~ 5.5V -
SX1502I087TRT
SX1502I087TRT
Download Datasheet for SX1502I087TRT
Semtech
21,748
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 21,723 - -
Hybrid Electronics 25 - -
Price on request
21,748
Distributor Stock MOQ Country
Fe Components 21,723 - -
Hybrid Electronics 25 - -
- - 400 kHz 8mA, 24mA - - POR - - - I²C With Interrupt - 3 mm - Surface Mount - 8 - -40°C ~ 85°C - - - Open Drain, Push Pull - - - - - 20-QFN-UT (3x3) 20-QFN-UT (3x3) - - - 1.2V to 5.5V -
PCA9501D,112
PCA9501D,112
Download Datasheet for PCA9501D,112
NXP Semiconductors
20,144
Across 2 distributors
Distributor Stock MOQ Country
Flip Electronics 19,840 - -
Partservice 304 - -
Price on request
20,144
Distributor Stock MOQ Country
Flip Electronics 19,840 - -
Partservice 304 - -
- - 400 kHz 100µA, 25mA 2-kbit Exceeds 2000 V HBM, 200 V MM, 1000 V CDM Integrated - - - I2C, SMBus Yes - - Through Hole Surface Mount - 8-channel - -40°C ~ 85°C - - - Push-Pull - - - - - 20-SO 20-SO - - - 2.5V ~ 3.6V -
MAX7313AEG+T
MAX7313AEG+T
Download Datasheet for MAX7313AEG+T
Analog Devices / Maxim Integrated
20,139
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 50 - -
Romaks Technologies 20,089 - -
Price on request
20,139
Distributor Stock MOQ Country
Braun Electronic Components 50 - -
Romaks Technologies 20,089 - -
No - 400 kHz 50mA - - PWM - No - I2C, SMBus Yes - 3.90 mm - Surface Mount - 16 - -40°C ~ 125°C - - - Open Drain - 24-SSOP (0.154", 3.90mm Width) - - - 24-QSOP - - - No 2V ~ 3.6V -
PCA9501D,118
PCA9501D,118
Download Datasheet for PCA9501D,118
NXP Semiconductors
19,840
From Flip Electronics
Distributor Stock MOQ Country
Flip Electronics 19,840 - -
Price on request
19,840
Distributor Stock MOQ Country
Flip Electronics 19,840 - -
- - 400 kHz 25mA 2-kbit ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 EEPROM, POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 20-SO 20-SO - - - 2.5V ~ 3.6V -
PCA9538BS,118
PCA9538BS,118
Download Datasheet for PCA9538BS,118
NXP Semiconductors
18,089
Across 4 distributors
Distributor Stock MOQ Country
Flip Electronics 6,000 - -
Risen Electronics 5,000 - -
Hybrid Electronics 5,389 - -
Optech Co.,Limited 1,700 - -
Price on request
18,089
Distributor Stock MOQ Country
Flip Electronics 6,000 - -
Risen Electronics 5,000 - -
Hybrid Electronics 5,389 - -
Optech Co.,Limited 1,700 - -
No - 400 kHz 10 mA, 25 mA - - POR - No - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C to 85°C - - - Push-Pull - - - - - 16-HVQFN (4x4) - - - No 2.3 V to 5.5 V -
PCA9703PW/Q900,118
PCA9703PW/Q900,118
Download Datasheet for PCA9703PW/Q900,118
NXP Semiconductors
18,000
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 18,000 - -
Price on request
18,000
Distributor Stock MOQ Country
Optech Co.,Limited 18,000 - -
- - 5 MHz - - - - Yes - - SPI Serial Yes - - - Surface Mount - 16 - - - - - Push-Pull - - - - - 24-TSSOP - - - - 4.5V ~ 5.5V -
PCA9534DWR
PCA9534DWR
Texas Instruments
17,964
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 12,914 - -
Xingangxin 5,050 - -
Price on request
17,964
Distributor Stock MOQ Country
Romaks Technologies 12,914 - -
Xingangxin 5,050 - -
No - 400 kHz 10mA / 25mA - - POR - No - I2C, SMBus Yes - 7.5 mm - Surface Mount - 8 - -40°C - - - Push-Pull - - - - - 16-SOIC - - - - 2.3V -
PCAL9554BPWJ
PCAL9554BPWJ
Download Datasheet for PCAL9554BPWJ
NXP Semiconductors
17,500
From Flip Electronics
Distributor Stock MOQ Country
Flip Electronics 17,500 - -
Price on request
17,500
Distributor Stock MOQ Country
Flip Electronics 17,500 - -
- - 400 kHz 10mA, 25mA - - POR - - - I2C, SMBus Yes - - - Surface Mount - 8 - -40°C to 85°C - - - Open Drain, Push-Pull - - - - - 16-TSSOP - - - Yes 1.65V to 5.5V -
PCA9574PW,118
PCA9574PW,118
Download Datasheet for PCA9574PW,118
NXP Semiconductors
17,500
From Flip Electronics
Distributor Stock MOQ Country
Flip Electronics 17,500 - -
Price on request
17,500
Distributor Stock MOQ Country
Flip Electronics 17,500 - -
- - 400 kHz 1mA, 3mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-TSSOP - - - - 1.1 V ~ 3.6 V -
MAX7312AUG
MAX7312AUG
Download Datasheet for MAX7312AUG
Analog Devices / Maxim Integrated
17,219
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 17,219 - -
Price on request
17,219
Distributor Stock MOQ Country
Romaks Technologies 17,219 - -
- - 400 kHz 31mA, 43mA - - POR - - - I²C, SMBus Yes - 4.4 mm - Surface Mount - 16 - -40°C ~ 125°C - - - Open Drain, Push-Pull - - - - - 24-TSSOP - - - - 2V ~ 5.5V -
MAX7311AUG+T
MAX7311AUG+T
Download Datasheet for MAX7311AUG+T
Analog Devices / Maxim Integrated
17,111
Across 2 distributors
Distributor Stock MOQ Country
Romaks Technologies 15,722 - -
Xingangxin 1,389 - -
Price on request
17,111
Distributor Stock MOQ Country
Romaks Technologies 15,722 - -
Xingangxin 1,389 - -
- - 400 kHz 31mA, 43mA - - POR - - - I2C, SMBus Yes - - - Surface Mount - 16 - -40°C to 125°C - - - Push-Pull - - - - - 24-TSSOP - - - - 2V to 5.5V -
TCA6408ARGTR
TCA6408ARGTR
Texas Instruments
16,869
Across 5 distributors
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Optech Co.,Limited 7,417 - -
PROSOFT ELECTRONICS 2,898 - -
Xingangxin 1,696 - -
Smaxon Electronics 2,858 - -
Price on request
16,869
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Optech Co.,Limited 7,417 - -
PROSOFT ELECTRONICS 2,898 - -
Xingangxin 1,696 - -
Smaxon Electronics 2,858 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-VQFN (3x3) 16-VQFN (3x3) - - - 1.65 V to 5.5 V -
PCA9536DP,118
PCA9536DP,118
Download Datasheet for PCA9536DP,118
NXP Semiconductors
16,736
Across 5 distributors
Distributor Stock MOQ Country
Braun Electronic Components 2,915 - -
MW.FEP S.p.A. 3,515 - -
Risen Electronics 10,000 - -
Optech Co.,Limited 303 - -
Trace Tec 3 - -
Price on request
16,736
Distributor Stock MOQ Country
Braun Electronic Components 2,915 - -
MW.FEP S.p.A. 3,515 - -
Risen Electronics 10,000 - -
Optech Co.,Limited 303 - -
Trace Tec 3 - -
- - 400 kHz 10mA, 25mA - Exceeds 2000 V HBM, 200 V MM, 1000 V CDM POR - - - I²C, SMBus No - - - Surface Mount - 4-bit - -40°C ~ 85°C - - - Push-Pull - - - - - 8-TSSOP 8-TSSOP - - - 2.3 V ~ 5.5 V -
PCA9554ARGVR
PCA9554ARGVR
Download Datasheet for PCA9554ARGVR
Texas Instruments
16,557
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 6,557 - -
Smaxon Electronics 10,000 - -
Price on request
16,557
Distributor Stock MOQ Country
Optech Co.,Limited 6,557 - -
Smaxon Electronics 10,000 - -
No - 400 kHz 10mA, 25mA - - POR - No - I²C, SMBus Yes Exceeds 100 mA 4 mm - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-VQFN (4x4) 16-VQFN (4x4) - - - 2.3 V to 5.5 V -
PCA9541AD/01,118
PCA9541AD/01,118
Download Datasheet for PCA9541AD/01,118
NXP Semiconductors
16,445
From Flip Electronics
Distributor Stock MOQ Country
Flip Electronics 16,445 - -
Price on request
16,445
Distributor Stock MOQ Country
Flip Electronics 16,445 - -
- 2-Channel I²C Multiplexer - - - - - - - - I²C, SMBus - - 0.154 mm - Surface Mount - - - - - - - - - - - - - 16-SO - - - - 2.3V to 5.5V -
MAX7312AUG+T
MAX7312AUG+T
Download Datasheet for MAX7312AUG+T
Analog Devices / Maxim Integrated
16,436
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 16,436 - -
Price on request
16,436
Distributor Stock MOQ Country
Romaks Technologies 16,436 - -
- - 400 kHz 31mA - - POR - - - I2C Open-Drain - 0.173 mm - Surface Mount - 16 - -40°C - 2V - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - - 2V ~ 5.5V -
PCA6408ABSHP
PCA6408ABSHP
Download Datasheet for PCA6408ABSHP
NXP Semiconductors
16,000
Across 2 distributors
Distributor Stock MOQ Country
Flip Electronics 6,000 - -
Risen Electronics 10,000 - -
Price on request
16,000
Distributor Stock MOQ Country
Flip Electronics 6,000 - -
Risen Electronics 10,000 - -
- - 400 kHz 10mA, 25mA - - POR - - - I2C, SMBus Yes - - - Surface Mount - 8-bit - -40°C / 85°C - - 10 mA Push-Pull - - - - - 16-HVQFN (3x3) - - - - 1.65 V / 5.5 V -
PCF8574TS/3,118
PCF8574TS/3,118
Download Datasheet for PCF8574TS/3,118
NXP Semiconductors
15,885
Across 2 distributors
Distributor Stock MOQ Country
Bristol Electronics 125 - -
Optech Co.,Limited 15,760 - -
Price on request
15,885
Distributor Stock MOQ Country
Bristol Electronics 125 - -
Optech Co.,Limited 15,760 - -
- - 100 kHz 300 µA - - POR - - - I2C Yes - 4.4 mm - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 20-SSOP - - - - 2.5V ~ 6V -
PCA9554APW,118
PCA9554APW,118
Download Datasheet for PCA9554APW,118
NXP Semiconductors
15,432
Across 4 distributors
Distributor Stock MOQ Country
Fe Components 5,000 - -
MW.FEP S.p.A. 142 - -
Risen Electronics 10,000 - -
Husky International Electronic 290 - -
Price on request
15,432
Distributor Stock MOQ Country
Fe Components 5,000 - -
MW.FEP S.p.A. 142 - -
Risen Electronics 10,000 - -
Husky International Electronic 290 - -
- - 0 Hz to 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - Through Hole Or Surface Mount Surface Mount - 8 - -40°C to 85°C - - - Push-Pull - - - - - 16-TSSOP - - - - 2.3V ~ 5.5V -
PCF8574PWR
PCF8574PWR
Texas Instruments
14,722
Across 6 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,491 - -
MW.FEP S.p.A. 1,491 - -
Bristol Electronics 45 - -
Optech Co.,Limited 3,195 - -
Xingangxin 1,000 - -
Smaxon Electronics 7,500 - -
Price on request
14,722
Distributor Stock MOQ Country
Braun Electronic Components 1,491 - -
MW.FEP S.p.A. 1,491 - -
Bristol Electronics 45 - -
Optech Co.,Limited 3,195 - -
Xingangxin 1,000 - -
Smaxon Electronics 7,500 - -
- - 0.1 MHz 1mA, 25mA - - POR - - - I²C Yes - 0.173 mm - Surface Mount - 8 - -40°C to 85°C - - - Push-Pull - - - - - 20-TSSOP 20-TSSOP - - - 2.5V to 6V -
CAT9555YI-T2
CAT9555YI-T2
Download Datasheet for CAT9555YI-T2
On Semiconductor
14,643
Across 5 distributors
Distributor Stock MOQ Country
Flip Electronics 343 - -
Bristol Electronics 55 - -
Optech Co.,Limited 5,070 - -
Xingangxin 750 - -
Smaxon Electronics 8,425 - -
Price on request
14,643
Distributor Stock MOQ Country
Flip Electronics 343 - -
Bristol Electronics 55 - -
Optech Co.,Limited 5,070 - -
Xingangxin 750 - -
Smaxon Electronics 8,425 - -
- - 400 kHz 10mA, 24mA - - POR - - - I2C, SMBus Yes - - Gull Wing Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - - 24-TSSOP - - - - 2.3V ~ 5.5V -
PCA9654EDTR2G
PCA9654EDTR2G
Download Datasheet for PCA9654EDTR2G
On Semiconductor
13,345
Across 4 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,000 - -
Flip Electronics 2,500 - -
Optech Co.,Limited 3,000 - -
PROSOFT ELECTRONICS 6,845 - -
Price on request
13,345
Distributor Stock MOQ Country
Braun Electronic Components 1,000 - -
Flip Electronics 2,500 - -
Optech Co.,Limited 3,000 - -
PROSOFT ELECTRONICS 6,845 - -
- - 100 kHz - - - POR - - - I²C Yes - - - Surface Mount - 8 - -55°C ~ 125°C - - - - - - - - - 16-TSSOP - - - - 1.65 V to 5.5 V -
PCF8574T/3,518
PCF8574T/3,518
Download Datasheet for PCF8574T/3,518
NXP Semiconductors
12,995
Across 4 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Fe Components 3,000 - -
Flip Electronics 7,000 - -
Speed Components Ltd 495 - -
Price on request
12,995
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Fe Components 3,000 - -
Flip Electronics 7,000 - -
Speed Components Ltd 495 - -
- - 100 kHz 300µA - - POR - - - I²C Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-SO 16-SO - - - 2.5V ~ 6V -
PCA9506DGG,518
PCA9506DGG,518
Download Datasheet for PCA9506DGG,518
NXP Semiconductors
12,941
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
Speed Components Ltd 52 - -
Optech Co.,Limited 9,289 - -
Price on request
12,941
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
Speed Components Ltd 52 - -
Optech Co.,Limited 9,289 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C Yes - - - Surface Mount - 40 - -40°C ~ 85°C - - - Push-Pull - - - - - 56-TSSOP - - - - 2.3V ~ 5.5V -
PCA9539DW
PCA9539DW
Texas Instruments
12,914
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 12,914 - -
Price on request
12,914
Distributor Stock MOQ Country
Romaks Technologies 12,914 - -
- - 400 kHz 10mA - - POR; Interrupt pin; Reset pin; Configuration registers - - - I2C, SMBus Yes 100 mA - - Surface Mount - 16 - -40°C - - - Push-Pull - - - - - 24-SOIC - - - - 2.3V -
MAX7311AUG+
MAX7311AUG+
Download Datasheet for MAX7311AUG+
Analog Devices / Maxim Integrated
12,624
Across 2 distributors
Distributor Stock MOQ Country
Speed Components Ltd 155 - -
Romaks Technologies 12,469 - -
Price on request
12,624
Distributor Stock MOQ Country
Speed Components Ltd 155 - -
Romaks Technologies 12,469 - -
- - 400 kHz 31mA / 43mA - - POR - - - I2C, SMBus Yes - - - Surface Mount - 16 - -40°C / 125°C - - - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - - 2V / 5.5V -
PCA9536D,118
PCA9536D,118
Download Datasheet for PCA9536D,118
NXP Semiconductors
12,600
Across 3 distributors
Distributor Stock MOQ Country
Flip Electronics 2,500 - -
Risen Electronics 10,000 - -
Speed Components Ltd 100 - -
Price on request
12,600
Distributor Stock MOQ Country
Flip Electronics 2,500 - -
Risen Electronics 10,000 - -
Speed Components Ltd 100 - -
- - 400 kHz 10mA, 25mA - Exceeds 2000 V HBM, 200 V MM, 1000 V CDM POR - - - I2C, SMBus No - - - Surface Mount - 4 - [{'min': -40, 'max': 85, 'unit': '°C', 'display_value': '-40°C ~ 85°C'}] - - - Push-Pull - - - - - 8-SO - - - Yes [{'min': 2.3, 'max': 5.5, 'unit': 'V', 'display_value': '2.3 V ~ 5.5 V'}] -
PCA9539RGER
PCA9539RGER
Texas Instruments
12,403
Across 3 distributors
Distributor Stock MOQ Country
Speed Components Ltd 150 - -
Romaks Technologies 12,053 - -
Bristol Electronics 200 - -
Price on request
12,403
Distributor Stock MOQ Country
Speed Components Ltd 150 - -
Romaks Technologies 12,053 - -
Bristol Electronics 200 - -
- - 400 kHz 10mA, 25mA - - POR - - - I2C, SMBus Yes - - - Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - - 24-VQFN (4x4) 24-VQFN (4x4) - - - 2.3V ~ 5.5V -
MAX7318AUG+
MAX7318AUG+
Download Datasheet for MAX7318AUG+
Analog Devices / Maxim Integrated
12,053
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 12,053 - -
Price on request
12,053
Distributor Stock MOQ Country
Romaks Technologies 12,053 - -
- - 400 kHz 31mA, 43mA - - POR - - - I2C, SMBus Yes - 0.173 mm - Surface Mount - 16 - -40°C ~ 125°C - - - Push-Pull - - - - - 24-TSSOP - - - - 2V ~ 5.5V -
MCP23018-E/SS
MCP23018-E/SS
Download Datasheet for MCP23018-E/SS
Microchip Technology
11,900
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 7,900 - -
Smaxon Electronics 4,000 - -
Price on request
11,900
Distributor Stock MOQ Country
Fe Components 7,900 - -
Smaxon Electronics 4,000 - -
No - 3.4 MHz 25mA - - POR - No - I²C Yes - 5.3 mm - Surface Mount - 16-Bit - 85°C ~ 125°C - - - Open Drain - - - - - 24-SSOP - - - No 1.8V to 5.5V -
DS4520E
DS4520E
Download Datasheet for DS4520E
Analog Devices / Maxim Integrated
11,665
From Romaks Technologies
Distributor Stock MOQ Country
Romaks Technologies 11,665 - -
Price on request
11,665
Distributor Stock MOQ Country
Romaks Technologies 11,665 - -
- - 400 kHz 12mA - - EEPROM, POR - - - I2C No - - - Surface Mount - 9 - -40°C ~ 85°C - - - Open Drain - - - - - 16-TSSOP 16-TSSOP - 2.7V to 5.5V - 2.7V ~ 5.5V -
TCA6418EYFPR
TCA6418EYFPR
Texas Instruments
11,546
Across 4 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 100 - -
PROSOFT ELECTRONICS 50 - -
Xingangxin 2,292 - -
Smaxon Electronics 9,104 - -
Price on request
11,546
Distributor Stock MOQ Country
Optech Co.,Limited 100 - -
PROSOFT ELECTRONICS 50 - -
Xingangxin 2,292 - -
Smaxon Electronics 9,104 - -
- - 1 MHz 10mA, 25mA - - Keypad Controller, POR - - - I²C Yes - - - Surface Mount - 18 - -40°C to 85°C - - - Push-Pull - - - - - 25-DSBGA 25-DSBGA - - - 1.65V to 3.6V -
MAX7301AAX+
MAX7301AAX+
Download Datasheet for MAX7301AAX+
Analog Devices / Maxim Integrated
11,245
Across 3 distributors
Distributor Stock MOQ Country
Romaks Technologies 10,044 - -
Bristol Electronics 1 - -
PROSOFT ELECTRONICS 1,200 - -
Price on request
11,245
Distributor Stock MOQ Country
Romaks Technologies 10,044 - -
Bristol Electronics 1 - -
PROSOFT ELECTRONICS 1,200 - -
- - 26 MHz 4.5mA, 10mA - - - - - - SPI Yes - 7.5 mm - Surface Mount - 28 - -40°C to +125°C - - - Push-Pull - - - - - 36-SSOP - - - - 2.25V to 5.5V -
PCAL6524HEAZ
PCAL6524HEAZ
NXP Semiconductors
10,792
Across 3 distributors
Distributor Stock MOQ Country
Bristol Electronics 71 - -
Optech Co.,Limited 8,970 - -
Xingangxin 1,751 - -
Price on request
10,792
Distributor Stock MOQ Country
Bristol Electronics 71 - -
Optech Co.,Limited 8,970 - -
Xingangxin 1,751 - -
- - 1 MHz - - - POR - - - I²C Yes - 5 mm - Surface Mount - 24 - -40°C ~ 85°C - - - Open Drain, Push-Pull - - - - - 32-HUQFN (5x5) - - - - 1.65V ~ 5.5V -
MCP23017-E/SO
MCP23017-E/SO
Download Datasheet for MCP23017-E/SO
Microchip Technology
10,595
Across 6 distributors
Distributor Stock MOQ Country
Fe Components 1,348 - -
MW.FEP S.p.A. 14 - -
Bristol Electronics 3 - -
Hybrid Electronics 22 - -
Xingangxin 6,216 - -
Smaxon Electronics 2,992 - -
Price on request
10,595
Distributor Stock MOQ Country
Fe Components 1,348 - -
MW.FEP S.p.A. 14 - -
Bristol Electronics 3 - -
Hybrid Electronics 22 - -
Xingangxin 6,216 - -
Smaxon Electronics 2,992 - -
- - 1.7 MHz 25mA - - POR - - - I²C Yes - - - Surface Mount - 16 - -40°C ~ 125°C - - - Push-Pull - - - - - 28-SOIC 28-SOIC - - - 1.8V ~ 5.5V -
PCAL6408ABSHP
PCAL6408ABSHP
Download Datasheet for PCAL6408ABSHP
NXP Semiconductors
10,256
Across 4 distributors
Distributor Stock MOQ Country
Fe Components 6,000 - -
Flip Electronics 2,500 - -
Bristol Electronics 60 - -
Xingangxin 1,696 - -
Price on request
10,256
Distributor Stock MOQ Country
Fe Components 6,000 - -
Flip Electronics 2,500 - -
Bristol Electronics 60 - -
Xingangxin 1,696 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - - Open Drain, Push-Pull - - - - - 16-HVQFN (3x3) - - - - 1.65V ~ 5.5V -
TCA9538PWR
TCA9538PWR
Texas Instruments
10,162
Across 4 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,000 - -
Rayichip 1,075 - -
Optech Co.,Limited 57 - -
Xingangxin 4,030 - -
Price on request
10,162
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,000 - -
Rayichip 1,075 - -
Optech Co.,Limited 57 - -
Xingangxin 4,030 - -
- - 400 kHz - - - - - - - I2C Yes - 4.4 mm - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-TSSOP 16-TSSOP (0.173", 4.40mm Width) - - - 1.65V ~ 5.5V -
MCP23017T-E/SS
MCP23017T-E/SS
Download Datasheet for MCP23017T-E/SS
Microchip Technology
10,082
Across 4 distributors
Distributor Stock MOQ Country
Fe Components 8,400 - -
MW.FEP S.p.A. 129 - -
Optech Co.,Limited 100 - -
Xingangxin 1,453 - -
Price on request
10,082
Distributor Stock MOQ Country
Fe Components 8,400 - -
MW.FEP S.p.A. 129 - -
Optech Co.,Limited 100 - -
Xingangxin 1,453 - -
- - 1.7 MHz 25mA - - POR - - - I²C Yes - 5.3 mm - Surface Mount - 16 - -40°C ~ 125°C - - - Push-Pull - - - - - 28-SSOP - - - - 1.8V ~ 5.5V -
MCP23S17-E/SO
MCP23S17-E/SO
Download Datasheet for MCP23S17-E/SO
Microchip Technology
10,055
Across 7 distributors
Distributor Stock MOQ Country
Fe Components 160 - -
Tomark Electronics Ltd 10 - -
Bristol Electronics 54 - -
Partservice 1 - -
Xingangxin 2,005 - -
Husky International Electronic 656 - -
Smaxon Electronics 7,169 - -
Price on request
10,055
Distributor Stock MOQ Country
Fe Components 160 - -
Tomark Electronics Ltd 10 - -
Bristol Electronics 54 - -
Partservice 1 - -
Xingangxin 2,005 - -
Husky International Electronic 656 - -
Smaxon Electronics 7,169 - -
- - 10 MHz 25mA - - POR - - - SPI Yes - 0.295 mm - Surface Mount - 16 - -40°C ~ 125°C - - - Push-Pull - - - - - 28-SOIC - - - - 1.8V ~ 5.5V -
PCA9539RPW/Q900J
PCA9539RPW/Q900J
Download Datasheet for PCA9539RPW/Q900J
NXP Semiconductors
10,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 10,000 - -
Price on request
10,000
Distributor Stock MOQ Country
Risen Electronics 10,000 - -
- - 400kHz 10mA, 25mA - 2kV POR; Input mode: invert option; Reset input pin Yes - - I2C, SMBus Yes - - Through-Hole Or Surface Mount Surface Mount - 16 - -40°C - 3V 10mA Push-Pull - - - - - 24-TSSOP - - - Tape & Reel 3V ~ 5.5V -
PCA9575HF,118
PCA9575HF,118
Download Datasheet for PCA9575HF,118
NXP Semiconductors
10,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 10,000 - -
Price on request
10,000
Distributor Stock MOQ Country
Risen Electronics 10,000 - -
- - 400 kHz 1mA, 3mA - - POR - - - I2C, SMBus Yes - - - Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - - 24-HWQFN (4x4) 24-HWQFN (4x4) - - No 1.1V ~ 3.6V -
Showing 101-150 of 1,100 products

About IO Expanders

IO Expanders are essential components in electronic systems, allowing for the expansion of input/output capabilities in integrated circuits. These devices are particularly useful in applications where additional I/O ports are required beyond what is available on a microcontroller or processor.

When sourcing IO Expanders, it is crucial to consider important attributes such as clock frequency, current ratings, and the specific features that meet your design requirements. Understanding the interface type and interrupt output capabilities can significantly impact the performance of your application.

IO Expanders find applications in wireless and RF signal chains, new product design and prototyping, as well as in production electronics assembly. They are also vital for maintenance and field replacement, ensuring that systems remain operational with minimal downtime.

Before submitting a Request for Quotation (RFQ), buyers should validate the lifecycle status of the components and explore alternate-source options to mitigate sourcing risks. It is advisable to prioritize parametric filtering based on critical specifications rather than brand preference to ensure compatibility with existing design constraints.

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