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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.

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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

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Part & Mfr AEC Qualified Automotive Grade Clock Frequency Current EEPROM Size ESD Protection Failure Rate Features Industrial Grade Interface Interrupt Output Latch-up Performance Lead Spacing Lead Style Medical Grade Military Grade Mounting Style Mounting Type Number of Bits Number of Channels Number of I Number of I/O Operating Temperature Operating Voltage Output Current Output Type Package / Case Package Quantity Power Dissipation SVHC Present Storage Temperature Supplier Device Package Supplier Package Supply Current Tape & Reel Voltage Write Cycle Time
Product image for PCA9672BS,118 by NXP Semiconductors
PCA9672BS,118
Download Datasheet for PCA9672BS,118
NXP Semiconductors
6,000
From Flip Electronics
Distributor Stock MOQ Country
Flip Electronics 6,000 - -
$1.15
 - - 1 MHz 300µA, 43mA - 2000 V HBM - POR - 1 MHz Yes - 3 mm - - - - Surface Mount - - 8 - -40°C ~ 85°C 2.3 V to 5.5 V - Push-Pull - - - - - 16-HVQFN (3x3) 16-HVQFN (3x3) - - 2.3V ~ 5.5V -
Product image for STMPE1801BJR by STMicroelectronics
STMPE1801BJR
STMicroelectronics
6,000
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 6,000 - -
Price on request
 - - 400kHz 4mA - - Xpander Logic™ Keypad Controller, POR - I²C Yes - - Ball - - - Surface Mount - - 18 18 -40°C / 85°C - - Push-Pull 25-WFBGA, WLCSP - - Not Present -55°C ~ 150°C 25-FlipChip (2x2) - - - 1.65V ~ 3.6V -
Product image for ID82C59A by Rochester Electronics
ID82C59A
Rochester Electronics
5,750
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,750 - -
Price on request
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - °C ~ °C - - - No - -
Product image for TCA9554DBR by Texas Instruments
TCA9554DBR
Texas Instruments
5,590
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 3,660 - -
Smaxon Electronics 1,930 - -
$0.58
 No No 400 kHz - - - - POR No I2C Yes - 0.5 mm - No No - Surface Mount - - 8 - -40°C ~ 85°C - - Push-Pull - - - - - 16-SSOP 16-SSOP - - 1.65V ~ 5.5V -
Product image for PCA9555PW,112 by NXP Semiconductors
PCA9555PW,112
Download Datasheet for PCA9555PW,112
NXP Semiconductors
5,572
Across 4 distributors
Distributor Stock MOQ Country
Flip Electronics 1,268 - -
Bristol Electronics 4 - -
Partservice 1,600 - -
Optech Co.,Limited 2,700 - -
$1.15
 - - 400 kHz 10mA, 25mA - - - POR - I²C, SMBus Yes - 0.173 mm Through Hole - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - 2.3V ~ 5.5V -
Product image for PCA9673PW,118 by NXP Semiconductors
PCA9673PW,118
Download Datasheet for PCA9673PW,118
NXP Semiconductors
5,547
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 547 - -
Risen Electronics 5,000 - -
$1.15
 - - 1 MHz 100µA, 25mA - - - POR - I²C Yes - - - - - - Surface Mount - - 16 - [{'min_value': -40, 'max_value': 85, 'unit': '°C', 'display_value': '-40°C ~ 85°C'}] - - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - [{'min_value': 2.3, 'max_value': 5.5, 'unit': 'V', 'display_value': '2.3 V to 5.5 V'}] -
Product image for PCA9698BS,118 by NXP Semiconductors
PCA9698BS,118
Download Datasheet for PCA9698BS,118
NXP Semiconductors
5,117
Across 2 distributors
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
Bristol Electronics 117 - -
$1.15
 - - 1 MHz 10mA, 25mA - - - POR - I²C Yes - - - - - - Surface Mount - - 40 - -40°C ~ 85°C - - Open Drain - - - - - 56-HVQFN (8x8) 56-HVQFN (8x8) - No 2.3V ~ 5.5V -
Product image for PCA9554BS,118 by NXP Semiconductors
PCA9554BS,118
Download Datasheet for PCA9554BS,118
NXP Semiconductors
5,015
Across 2 distributors
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
Speed Components Ltd 15 - -
$1.15
 - - 400 kHz 10mA - - - POR - I²C, SMBus Yes - 4 mm - - - - Surface Mount - - 8 - -40°C - - Push-Pull - - - - - 16-HVQFN (4x4) 16-HVQFN (4x4) - - 2.3V -
Product image for PCA9500PW,118 by NXP Semiconductors
PCA9500PW,118
Download Datasheet for PCA9500PW,118
NXP Semiconductors
5,010
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 5,000 - -
Bristol Electronics 10 - -
$1.15
 - - 0 Hz ~ 400 kHz 100µA 2 kbit - - EEPROM, POR - I²C, SMBus No - 4.4 mm - - - - Surface Mount - - 8 - -40°C ~ 85°C - - Push-Pull 16-TSSOP - - - - 16-TSSOP - - - 2.5 V ~ 3.6 V -
Product image for PCA9557BS,118 by NXP Semiconductors
PCA9557BS,118
Download Datasheet for PCA9557BS,118
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 400 kHz 10mA, 25mA - Exceeds 2000V HBM, 1000V CDM - POR - I²C, SMBus No - - - - - - Surface Mount - - 8-bit - -40°C ~ 85°C 2.3 V ~ 5.5 V - Open Drain, Push-Pull - - - - - 16-HVQFN (4x4) 16-HVQFN (4x4) - - 2.3V ~ 5.5V -
Product image for PCA9538ABSHP by NXP Semiconductors
PCA9538ABSHP
Download Datasheet for PCA9538ABSHP
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 100 KHz 10mA, 25mA - - - POR - I2c, Smbus Yes - - - - - Smd/Smt Surface Mount - - 8 - + 85 C 1.65 V to 5.5 V 25 mA Push-Pull - - 200 mW - - 16-HVQFN (3x3) 16-HVQFN (3x3) - - 1.65V ~ 5.5V -
Product image for PCA9554ABS,118 by NXP Semiconductors
PCA9554ABS,118
Download Datasheet for PCA9554ABS,118
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 400 kHz 10 mA, 25 mA - - - POR - I²C, SMBus Yes - - - - - - Surface Mount - - 8 - -40°C ~ 85°C - - Push-Pull - - - - - 16-HVQFN (4x4) 16-HVQFN (4x4) - - 2.3 V to 5.5 V -
Product image for PCA9500BS,118 by NXP Semiconductors
PCA9500BS,118
Download Datasheet for PCA9500BS,118
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 400 kHz 100µA, 25mA 2 kbit Exceeds 2000 V HBM, 200 V MM, 1000 V CDM - EEPROM, POR - I2C, SMBus No - - - - - - Surface Mount - - 8-bit - -40°C ~ 85°C - - Push-Pull - - - - - 16-HVQFN (4x4) 16-HVQFN (4x4) - - 2.5 V ~ 3.6 V -
Product image for PCA9501PW,118 by NXP Semiconductors
PCA9501PW,118
Download Datasheet for PCA9501PW,118
NXP Semiconductors
5,000
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 5,000 - -
$1.15
 No No 400 kHz 100µA, 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 - Yes No I²C, SMBus Yes - 0 mm - No No - Surface Mount - - 8-bit - -40°C ~ 85°C - - Push-Pull - - - - °C ~ °C 20-TSSOP 20-TSSOP - No 2.5 V ~ 3.6 V 5 ms typical
Product image for PCA9535APW,118 by NXP Semiconductors
PCA9535APW,118
Download Datasheet for PCA9535APW,118
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 100 KHz 10 mA, 25 mA - - - POR - I²C, SMBus Yes - - Through Hole - - Smd/Smt Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - 200 mW - - 24-TSSOP - - - 1.65 V to 5.5 V -
Product image for PCAL6534EVJ by NXP Semiconductors
PCAL6534EVJ
Download Datasheet for PCAL6534EVJ
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 1 MHz - - - - POR - I²C Yes - - - - - - Surface Mount - - 34 - -40°C ~ 85°C - - Open Drain, Push-Pull 42-VFBGA - - - - 42-VFBGA (2.6x3) - - - 1.65V ~ 5.5V -
Product image for PCA9535BS,118 by NXP Semiconductors
PCA9535BS,118
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 400 kHz 10mA, 25mA - - - POR - I²C, SMBus Yes - - - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-HVQFN (4x4) - - - 2.3V ~ 5.5V -
Product image for PCA9670BS,118 by NXP Semiconductors
PCA9670BS,118
Download Datasheet for PCA9670BS,118
NXP Semiconductors
5,000
Across 2 distributors
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
HK XINYUANXIN ELECTRONIC TECH LIMITED Stock on Request - -
$1.15
 - - 1 MHz 100µA, 25mA - - - POR; Manual Reset - I2C No - 3 mm - - - - Surface Mount - - 8 - -40°C ~ 85°C - 41 mA Push-Pull - - 400 mW - - 16-HVQFN (3x3) 16-HVQFN (3x3) - - 2.3V ~ 5.5V -
Product image for MAX7312ATG+T by Analog Devices / Maxim Integrated
MAX7312ATG+T
Download Datasheet for MAX7312ATG+T
Analog Devices / Maxim Integrated
5,000
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,000 - -
$1.15
 - - 400 kHz 31mA, 43mA - - - POR - I2C, SMBus Yes - - - - - - Surface Mount - - 16 - -40°C ~ 125°C - - Push-Pull - - - - - 24-TQFN (4x4) - - - 2V ~ 5.5V -
Product image for PCA6416AEVJ by NXP Semiconductors
PCA6416AEVJ
Download Datasheet for PCA6416AEVJ
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 400 kHz 10mA, 25mA - - - POR - I²C, SMBus Yes - 3 mm - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-VFBGA (3x3) 24-VFBGA (3x3) - - 1.65V ~ 5.5V -
Product image for PCA9539PW by Burr-Brown Corp
PCA9539PW
Burr-Brown Corp
5,000
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 5,000 - -
$1.15
 - - 400 kHz 10mA, 25mA - - - POR - I2C, SMBus Yes - 4.4 mm - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-TSSOP - - No 2.3V ~ 5.5V -
Product image for PCA9539RPW,118 by NXP Semiconductors
PCA9539RPW,118
Download Datasheet for PCA9539RPW,118
NXP Semiconductors
5,000
From Flip Electronics
Distributor Stock MOQ Country
Flip Electronics 5,000 - -
$1.15
 - - 400 kHz 10mA, 25mA - - - POR - I2C, SMBus Yes - - - - - - Surface Mount - - 16 - -40°C - - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - 2.3V -
Product image for PCAL9539AHF,128 by NXP Semiconductors
PCAL9539AHF,128
Download Datasheet for PCAL9539AHF,128
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 400 kHz [{'nominal': 10, 'unit': 'mA', 'display_value': '10mA'}, {'nominal': 25, 'unit': 'mA', 'display_value': '25mA'}] - - - POR - I2C Yes - 4 mm - - - - Surface Mount - - 16 - [{'min': -40, 'max': 85, 'unit': '°C', 'display_value': '-40°C ~ 85°C'}] - - Open Drain, Push-Pull - - - - - 24-HWQFN (4x4) - - - [{'min': 1.65, 'max': 5.5, 'unit': 'V', 'display_value': '1.65V ~ 5.5V'}] -
Product image for PCA9505DGGY by NXP Semiconductors
PCA9505DGGY
NXP Semiconductors
5,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 5,000 - -
$1.15
 - - 400 kHz 10mA, 15mA - 2 kV - POR - I2C Yes - 6.1 mm - - - - Surface Mount - - 40 - -40°C ~ 85°C - - Push-Pull - - 500 mW - -40°C ~ 85°C 56-TSSOP - - No 2.3V ~ 5.5V -
Product image for PCA9554BPWJ by NXP Semiconductors
PCA9554BPWJ
Download Datasheet for PCA9554BPWJ
NXP Semiconductors
4,698
From Braun Electronic Components
Distributor Stock MOQ Country
Braun Electronic Components 4,698 - -
$1.15
 - - 400 kHz 10mA, 25mA - - - POR - I²C, SMBus Yes - - - - - - Surface Mount - - 8 - -40°C to 85°C - - Push-Pull - - - - - 16-TSSOP 16-TSSOP - - 1.65 V to 5.5 V -
Product image for TCA9554ADBQR by Texas Instruments
TCA9554ADBQR
Download Datasheet for TCA9554ADBQR
Texas Instruments
4,634
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 2,922 - -
Smaxon Electronics 1,712 - -
$0.55
 - - 400 kHz - - - - POR - I²C, SMBus Yes - - - - - - Surface Mount - - 8 - -40°C - - Push-Pull - - - - - 16-SSOP - - - 1.65V -
Product image for CS82C55AZ by Renesas
CS82C55AZ
Renesas
4,600
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
Xingangxin 1,000 - -
Price on request
 - - - 2.5mA - - - - - Parallel No - - J-Lead - - - Surface Mount - - 24 24 0°C ~ 70°C - - Open Drain - - - - - 44-PLCC (16.58x16.58) - - - 4.5V ~ 5.5V -
Product image for TCA9534ADWR by Texas Instruments
TCA9534ADWR
Texas Instruments
4,534
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 2,883 - -
Smaxon Electronics 1,651 - -
$1.15
 - - 400 kHz - - - - - - I²C Yes - - - - - - Surface Mount - - 8 - -40°C / 85°C - - Push-Pull - - - - -40°C ~ 85°C 16-SOIC 16-SOIC - - 1.65V / 5.5V -
Product image for XRA1201IG24-F by Maxlinear
XRA1201IG24-F
Maxlinear
4,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 4,500 - -
$1.15
 - - 400 kHz - - - - - - I²C, SMBus Yes - - - - - - Surface Mount - - 16 - -40°C ~ 85°C - - - - - - - - 24-TSSOP - - - 1.65V ~ 3.6V -
Product image for FXL6408UMX by On Semiconductor
FXL6408UMX
Download Datasheet for FXL6408UMX
On Semiconductor
4,462
Across 4 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,000 - -
Bristol Electronics 36 - -
PROSOFT ELECTRONICS 1,780 - -
Xingangxin 1,646 - -
Price on request
 - - 400 kHz 6mA - - - POR - I²C Yes - - - - - - Surface Mount - - 8 - -40°C / 85°C - 6 mA Open Drain - - - - - 16-UMLP (1.8x2.6) 16-UMLP (1.8x2.6) - Tape & Reel 1.65 V / 4 V -
Product image for PCF8575DWR by Texas Instruments
PCF8575DWR
Texas Instruments
4,453
Across 2 distributors
Distributor Stock MOQ Country
Xingangxin 2,810 - -
Smaxon Electronics 1,643 - -
$1.18
 - - 400 kHz 1mA, 25mA - - - POR - I2C, SMBus Yes - - - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-SOIC - - - 2.5V ~ 5.5V -
Product image for PCA9535EMTTXG by On Semiconductor
PCA9535EMTTXG
On Semiconductor
4,376
Across 4 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,000 - -
Speed Components Ltd 66 - -
PROSOFT ELECTRONICS 500 - -
Xingangxin 2,810 - -
$1.15
 - - 100 kHz 10mA, 25mA - - - POR - I2C, SMBus Yes - - - - - SMD/SMT Surface Mount - - 16 - -55°C / +125°C - 50 mA Push-Pull - - - - - 24-QFN (4x4) - - - 1.65 V to 5.5 V -
Product image for TCA1116PWR by Texas Instruments
TCA1116PWR
Texas Instruments
4,158
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 3,770 - -
Smaxon Electronics 388 - -
$1.15
 - - 400 kHz - - - - POR - I²C Yes - - - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - 1.65V ~ 5.5V -
Product image for PCA9538PW,112 by NXP Semiconductors
PCA9538PW,112
Download Datasheet for PCA9538PW,112
NXP Semiconductors
4,135
From Husky International Electronic
Distributor Stock MOQ Country
Husky International Electronic 4,135 - -
$1.15
 - - 400 kHz 10mA, 25mA - - - POR - I²C, SMBus Yes - - - - - - Surface Mount - - 8 8 -40°C ~ 85°C - - Push-Pull - - - - - 16-TSSOP - - - 2.3V ~ 5.5V -
Product image for PCF8575TS/1,118 by NXP Semiconductors
PCF8575TS/1,118
Download Datasheet for PCF8575TS/1,118
NXP Semiconductors
4,041
Across 5 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2 - -
Fe Components 2,000 - -
Braun Electronic Components 21 - -
MW.FEP S.p.A. 18 - -
Risen Electronics 2,000 - -
$1.15
 - - 400 kbits/s 10μA - - - High Current - I²C Yes - - - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-SSOP - - - 2.5V to 5.5V -
Product image for PCAL6524EVJ by NXP Semiconductors
PCAL6524EVJ
NXP Semiconductors
4,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 4,000 - -
$1.15
 - - 1 MHz - - - - POR - I²C Yes - 2.6 mm - - - - Surface Mount - - 24 - -40°C ~ 85°C - - Open Drain, Push-Pull - - - - - 36-VFBGA (2.6x2.6) 36-VFBGA (2.6x2.6) - - 1.65V ~ 5.5V -
Product image for PCA9557D,118 by NXP Semiconductors
PCA9557D,118
Download Datasheet for PCA9557D,118
NXP Semiconductors
4,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 4,000 - -
$1.15
 - - 400 kHz 10mA - Exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101 - POR - I²C, SMBus No - - - - - - Surface Mount - - 8-bit - -40°C ~ 85°C - - Open Drain, Push-Pull - - - - - 16-SO - - - 2.3 V ~ 5.5 V -
Product image for CP82C55A by Intersil
CP82C55A
Intersil
3,990
Across 4 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
ACK ELEKTRONIK 264 - -
Partservice 14 - -
Xingangxin 112 - -
Price on request
 - - - 2.5mA - - - - - Parallel No - 15.24 mm - - - - Through Hole 8bit - 24 - 0°C ~ 70°C - - Open Drain - - - - - 40-PDIP - - - 4.5V ~ 5.5V -
Product image for PCA9535DBR by Texas Instruments
PCA9535DBR
Texas Instruments
3,966
Across 2 distributors
Distributor Stock MOQ Country
Xingangxin 2,645 - -
Smaxon Electronics 1,321 - -
$1.15
 - - 400 kHz 10mA, 25mA - Exceeds JESD 22 - POR; Configuration registers, Interrupt pin - I2C, SMBus Yes Exceeds 100 mA 5.3 mm - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-SSOP - - - 2.3 V ~ 5.5 V -
Product image for PCA9557PW by Texas Instruments
PCA9557PW
Texas Instruments
3,620
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,500 - -
Speed Components Ltd 120 - -
$0.86
 - - 400 kHz 10mA, 25mA - - - POR - I2C, SMBus No - - - - - - Surface Mount - - 8-bit - -40°C ~ 85°C - - Open Drain, Push-Pull - - - - - 16-TSSOP - - - 2.3V ~ 5.5V -
Product image for XRA1201PIL24-F by Maxlinear
XRA1201PIL24-F
Maxlinear
3,600
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
$1.15
 - - 400 kHz - - - - - - I²C, SMBus Yes - 4 mm - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - - 24-QFN (4x4) 24-QFN (4x4) - - 1.65V ~ 3.6V -
Product image for ID82C55A by Renesas
ID82C55A
Renesas
3,600
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
Price on request
 - - - 2.5mA - - - - - Parallel No - 15.24 mm - - - - Through Hole - - 24 24 -40°C 4.5 V - Open Drain - - - - - 40-Cerdip - 2.5mA - 4.5V ~ 5.5V -
Product image for PCA9501PW by NXP Semiconductors
PCA9501PW
NXP Semiconductors
3,600
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
$1.15
 No No - - - - - - No - - - - - No No - - - - - - - - - - - - - - °C ~ °C - - - No - -
Product image for PCF8574ANE4 by Texas Instruments
PCF8574ANE4
Texas Instruments
3,600
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
$1.15
 - - - - - - - - - I2C/SMBus - Exceeds 100 mA - - - - - Through Hole - 8 - - -40 to 85 °C 2.5 to 5.5 V - - - - - - - - - - - - -
Product image for IP82C55A by Renesas
IP82C55A
Renesas
3,600
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
Price on request
 - - - 2.5mA - - - - - Parallel No - 15.24 mm - - - - Through Hole - - 24 - -40°C ~ 85°C - - Open Drain - - - - - 40-PDIP 40-PDIP - - 4.5V ~ 5.5V -
Product image for XRA1201PIG24-F by Maxlinear
XRA1201PIG24-F
Maxlinear
3,600
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,600 - -
$1.15
 - - 400 kHz - - - - - - I²C, SMBus Yes - 4.4 mm - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Open Drain - - - - - 24-TSSOP 24-TSSOP - No 1.65V ~ 3.6V -
Product image for SX1503I091TRT by Semtech
SX1503I091TRT
Download Datasheet for SX1503I091TRT
Semtech
3,542
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 121 - -
Xingangxin 3,421 - -
$1.15
 - - 400 kHz 8mA, 24mA - - - POR - I²C Yes - - - - - - Surface Mount - - 16 - -40°C ~ 85°C - - Push-Pull - - - - °C ~ °C 28-QFN-UT (4x4) - - No 1.2V ~ 5.5V -
Product image for IS82C55A by Harris Semiconductor
IS82C55A
Download Datasheet for IS82C55A
Harris Semiconductor
3,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,500 - -
Price on request
 - - - - - - - - - - Yes - 16.58 mm - - - - Surface Mount - - 24 - -40°C ~ 85°C - - - - - - - - 44-PLCC (16.58x16.58) - - - 4.5V ~ 5.5V -
Product image for XRA1201IL24-F by Maxlinear
XRA1201IL24-F
Maxlinear
3,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 3,500 - -
$1.15
 No No 400 kHz - - - - - No I2C, SMBus Yes - - - No No - Surface Mount - - 16 - -40°C ~ 85°C - - Open Drain - - - - -40°C ~ 85°C 24-QFN (4x4) - - No 1.65V ~ 3.6V -
Product image for TCA9554APWR by Texas Instruments
TCA9554APWR
Texas Instruments
3,497
Across 2 distributors
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 76 - -
Xingangxin 3,421 - -
$0.52
 - - 400 kHz 10mA, 25mA - - - POR - I²C, SMBus Yes - - - - - - Surface Mount - - 8-bit - -40°C ~ 85°C - - Push-Pull - 2000 - - - 16-TSSOP - - - 1.65V ~ 5.5V -
Showing 201-250 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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