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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
MCP23016T-I/ML
MCP23016T-I/ML
Download Datasheet for MCP23016T-I/ML
Microchip Technology
3,200
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,600 - -
MW.FEP S.p.A. 1,600 - -
Price on request
3,200
Distributor Stock MOQ Country
Braun Electronic Components 1,600 - -
MW.FEP S.p.A. 1,600 - -
- - 400 kHz ±25 mA - - POR - - - I²C Yes - - - Surface Mount - 16-bit - -40°C ~ 85°C - - - Push-Pull - - - - - 28-QFN (6x6) 28-QFN (6x6) - - - 2V ~ 5.5V -
PCA9575PW2,118
PCA9575PW2,118
Download Datasheet for PCA9575PW2,118
NXP Semiconductors
3,152
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,152 - -
Risen Electronics 1,000 - -
Price on request
3,152
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,152 - -
Risen Electronics 1,000 - -
- - 400 kHz 1mA, 3mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 16 - -40°C to 85°C - - - Push-Pull - - - - - 28-TSSOP 28-TSSOP - - - 1.1V to 3.6V -
PCA9539DBQR
PCA9539DBQR
Texas Instruments
3,147
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 3,147 - -
Price on request
3,147
Distributor Stock MOQ Country
Xingangxin 3,147 - -
- - 400 kHz 10mA, 25mA - 2000-V Human-body model (A114-A) V POR - - - I2C, SMBus Yes Exceeds 100 mA - - Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - - 24-SSOP - - - - 2.3V ~ 5.5V -
CS82C55AZ96
CS82C55AZ96
Renesas
3,112
Across 2 distributors
Distributor Stock MOQ Country
Braun Electronic Components 1,400 - -
Xingangxin 1,712 - -
Price on request
3,112
Distributor Stock MOQ Country
Braun Electronic Components 1,400 - -
Xingangxin 1,712 - -
- - - 2.5mA - - - - - - Parallel No - - J-Lead Surface Mount - 24 - 0°C / 70°C - - - Open Drain - - - - - 44-PLCC (16.58x16.58) 44-PLCC (16.58x16.58) - - - 4.5V / 5.5V -
PCA9500PW
PCA9500PW
NXP Semiconductors
3,056
Across 4 distributors
Distributor Stock MOQ Country
Speed Components Ltd 530 - -
Hybrid Electronics 238 - -
Xingangxin 1,124 - -
Smaxon Electronics 1,164 - -
Price on request
3,056
Distributor Stock MOQ Country
Speed Components Ltd 530 - -
Hybrid Electronics 238 - -
Xingangxin 1,124 - -
Smaxon Electronics 1,164 - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - °C ~ °C - - - - No - -
PCA9554ABS3,118
PCA9554ABS3,118
Download Datasheet for PCA9554ABS3,118
NXP Semiconductors
3,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
Price on request
3,000
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
- - 400 kHz 10mA - - POR - - - I2C, SMBus Yes - 3 mm - Surface Mount - 8 - -40°C - - - Push-Pull - - - - - 16-HVQFN (3x3) - - - - 2.3V -
PCA8574APW,118
PCA8574APW,118
Download Datasheet for PCA8574APW,118
NXP Semiconductors
3,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
Price on request
3,000
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
- - 400 kHz 100 µA - - POR - - - I2C Yes - - Through-Hole Surface Mount - 8 - -40 °C to 85 °C - - - Push-Pull - - - - - 16-TSSOP - - - - 2.3 V to 5.5 V -
PCA9539PW/Q900,118
PCA9539PW/Q900,118
Download Datasheet for PCA9539PW/Q900,118
NXP Semiconductors
3,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
Price on request
3,000
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
Yes - 400 kHz 10mA, 25mA - 2 kV POR Yes - - I2C, SMBus Yes - - - Surface Mount - 16 - -40°C ~ 125°C - 2.3 V to 5.5 V - Push-Pull - - - 200 mW - 24-TSSOP - - - - 3V ~ 5.5V -
PCAL9539APW,118
PCAL9539APW,118
Download Datasheet for PCAL9539APW,118
NXP Semiconductors
3,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
Price on request
3,000
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
- - 400 kHz 10mA, 25mA - - POR - - - I2C, SMBus Yes - - Through Hole Surface Mount - 16 - -40°C - 1.65V 10mA Open Drain, Push-Pull - 24-TSSOP (0.173", 4.40mm Width) - - - 24-TSSOP - - - - 1.65V ~ 5.5V -
PCA9554AD,118
PCA9554AD,118
Download Datasheet for PCA9554AD,118
NXP Semiconductors
3,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
Price on request
3,000
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
- - 400 kHz 10 mA, 25 mA - Exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101 POR - - 5 V I2C, SMBus Open-drain interrupt output - - Through Hole SMD/SMT - 8 - -40°C to +85°C - 2.3 V to 5.5 V 50 mA Push-Pull 5 V - - 200 mW - 16-SO - - - - 2.3V ~ 5.5V -
PCA9555D,118
PCA9555D,118
Download Datasheet for PCA9555D,118
NXP Semiconductors
3,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
Price on request
3,000
Distributor Stock MOQ Country
Risen Electronics 3,000 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - Through Hole Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - - 24-SO 24-SO - - - 2.3 V ~ 5.5 V -
DS2408S
DS2408S
Analog Devices / Maxim Integrated
2,774
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 2,774 - -
Price on request
2,774
Distributor Stock MOQ Country
Xingangxin 2,774 - -
No - - 20 mA - - DAC - No - 1-Wire No - 3.9 mm - Surface Mount - 8 - -40°C - - - Open Drain - - - - - 16-SOIC 16-SOIC - - No 2.8 V -
STMPE1601TBR
STMPE1601TBR
Download Datasheet for STMPE1601TBR
STMicroelectronics
2,700
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 2,700 - -
Price on request
2,700
Distributor Stock MOQ Country
Smaxon Electronics 2,700 - -
- - 400 kHz 4mA - - POR; Keypad Controller; PWM - - - I2C Yes - - - Surface Mount - 16 8 -40°C ~ 85°C - - - Push-Pull - - - - - 25-TFBGA (3x3) - - - No 1.65V ~ 3.6V -
N82C55A2
N82C55A2
Intel
2,696
Across 3 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,333 - -
Speed Components Ltd 340 - -
Partservice 23 - -
Price on request
2,696
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,333 - -
Speed Components Ltd 340 - -
Partservice 23 - -
- - 8 MHz 2.5mA - - Direct Bit Set/Reset - - - - Yes - - - Surface Mount - 24 - 0°C - - - - - - - - - 44-PLCC - - - - 4.5V -
BU1850MUV-E2
BU1850MUV-E2
ROHM Semiconductor
2,655
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 2,655 - -
Price on request
2,655
Distributor Stock MOQ Country
Smaxon Electronics 2,655 - -
- - 400 kHz - - - POR - - - I2C Yes - - - Surface Mount - 8 - -30°C ~ 85°C - - - Open Drain - - - - - VQFN016V3030 - - - - 1.65V ~ 3.6V -
PCA9538APWJ
PCA9538APWJ
Download Datasheet for PCA9538APWJ
NXP Semiconductors
2,614
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 1,207 - -
Xingangxin 1,407 - -
Price on request
2,614
Distributor Stock MOQ Country
Optech Co.,Limited 1,207 - -
Xingangxin 1,407 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C to 85°C - 1.65V to 5.5V - Push-Pull - - - - - 16-TSSOP - - - - 1.65V ~ 5.5V -
PCA9505DGG,118
PCA9505DGG,118
Download Datasheet for PCA9505DGG,118
NXP Semiconductors
2,599
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,386 - -
PROSOFT ELECTRONICS 213 - -
Price on request
2,599
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,386 - -
PROSOFT ELECTRONICS 213 - -
- - 400 kHz [{'limit_type': 'maximum', 'value': 10, 'unit': 'mA', 'display_value': '10mA'}, {'limit_type': 'maximum', 'value': 25, 'unit': 'mA', 'display_value': '25mA'}] - - POR - - - I²C Yes - 6.1 mm - Surface Mount - 40 - [{'limit_type': 'minimum', 'value': -40, 'unit': '°C', 'display_value': '-40°C'}, {'limit_type': 'maximum', 'value': 85, 'unit': '°C', 'display_value': '+85°C'}] - - - Push-Pull - 56-TFSOP (0.240", 6.10mm Width) - - - 56-TSSOP - - - - [{'limit_type': 'minimum', 'value': 2.3, 'unit': 'V', 'display_value': '2.3V'}, {'limit_type': 'maximum', 'value': 5.5, 'unit': 'V', 'display_value': '5.5V'}] -
PCA9655EDTR2G
PCA9655EDTR2G
Download Datasheet for PCA9655EDTR2G
On Semiconductor
2,538
Across 3 distributors
Distributor Stock MOQ Country
MW.FEP S.p.A. 10 - -
Xingangxin 1,000 - -
Smaxon Electronics 1,528 - -
Price on request
2,538
Distributor Stock MOQ Country
MW.FEP S.p.A. 10 - -
Xingangxin 1,000 - -
Smaxon Electronics 1,528 - -
- - 100 kHz 42mA - - POR - - - I²C, SMBus Yes - 4.4 mm - Surface Mount - 16 - -55°C ~ 125°C - - - Push-Pull - - - - - 24-TSSOP 24-TSSOP - - No 1.65V to 5.5V -
PCF8574APW
PCF8574APW
Texas Instruments
2,524
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,524 - -
Price on request
2,524
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,524 - -
- - 100 kHz 1mA, 25mA - - POR - - - I²C Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - 50mA Push-Pull - - - - - 20-TSSOP - - - - 2.5V ~ 6V -
MCP23018-E/MJ
MCP23018-E/MJ
Download Datasheet for MCP23018-E/MJ
Microchip Technology
2,505
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 2,505 - -
Price on request
2,505
Distributor Stock MOQ Country
Xingangxin 2,505 - -
- - 3.4 MHz 25mA - - POR - - - I2C Yes - - - Surface Mount - 16-Bit - -40°C ~ 125°C - - - Open Drain - - - - - 24-QFN (4x4) - - - - 1.8V ~ 5.5V -
P8155H
P8155H
Rochester Electronics
2,504
Across 2 distributors
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
HMB Electronics LLC 4 - -
Price on request
2,504
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
HMB Electronics LLC 4 - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
PCAL6416APW,118
PCAL6416APW,118
Download Datasheet for PCAL6416APW,118
NXP Semiconductors
2,500
From Flip Electronics
Distributor Stock MOQ Country
Flip Electronics 2,500 - -
Price on request
2,500
Distributor Stock MOQ Country
Flip Electronics 2,500 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - 0.173" mm - Surface Mount - 16 - -40°C ~ 85°C - - - Open Drain, Push-Pull - - - - - 24-TSSOP 24-TSSOP - - No 1.65V ~ 5.5V -
PCA9554D
PCA9554D
NXP Semiconductors
2,500
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
Price on request
2,500
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,500 - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
AAT4292IJQ-T1
AAT4292IJQ-T1
Download Datasheet for AAT4292IJQ-T1
Skyworks Solutions
2,419
From Husky International Electronic
Distributor Stock MOQ Country
Husky International Electronic 2,419 - -
Price on request
2,419
Distributor Stock MOQ Country
Husky International Electronic 2,419 - -
- - - - - - - - - - - - - - Gull Wing - - - - - -40°C to +85°C - - - - - - - - - - - - - - -
PCAL6524HEHP
PCAL6524HEHP
NXP Semiconductors
2,306
Across 2 distributors
Distributor Stock MOQ Country
Optech Co.,Limited 1,220 - -
Xingangxin 1,086 - -
Price on request
2,306
Distributor Stock MOQ Country
Optech Co.,Limited 1,220 - -
Xingangxin 1,086 - -
- - 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 -
PCA9535D,112
PCA9535D,112
NXP Semiconductors
2,258
Across 2 distributors
Distributor Stock MOQ Country
Fe Components 1,230 - -
Optech Co.,Limited 1,028 - -
Price on request
2,258
Distributor Stock MOQ Country
Fe Components 1,230 - -
Optech Co.,Limited 1,028 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 16 - -40°C to 85°C - - - Push-Pull - - - - - 24-SO - - - - 2.3V to 5.5V -
PCAL6408AHKX
PCAL6408AHKX
Download Datasheet for PCAL6408AHKX
NXP Semiconductors
2,207
Across 2 distributors
Distributor Stock MOQ Country
Risen Electronics 1,000 - -
Xingangxin 1,207 - -
Price on request
2,207
Distributor Stock MOQ Country
Risen Electronics 1,000 - -
Xingangxin 1,207 - -
- - 400 kHz 10mA, 25mA - - POR - - - I2C, SMBus Yes - 1.8 mm - Surface Mount - 8 - -40°C ~ 85°C - - - Open Drain, Push-Pull - - - - - 16-XQFN (1.8x2.6) 16-XQFN (1.8x2.6) - - - 1.65V ~ 5.5V -
MCP23008T-E/SSVAO
MCP23008T-E/SSVAO
Download Datasheet for MCP23008T-E/SSVAO
Microchip Technology
2,121
From Optech Co.,Limited
Distributor Stock MOQ Country
Optech Co.,Limited 2,121 - -
Price on request
2,121
Distributor Stock MOQ Country
Optech Co.,Limited 2,121 - -
- - 10 MHz 25mA - - POR - - - I²C Yes - 5.3 mm - Surface Mount - 8 - -40°C ~ 125°C - - - Push-Pull - - - - - 20-SSOP - - - - 4.5V ~ 5.5V -
MAX7300ATL+T
MAX7300ATL+T
Download Datasheet for MAX7300ATL+T
Analog Devices / Maxim Integrated
2,100
From OTL Components
Distributor Stock MOQ Country
OTL Components 2,100 - -
Price on request
2,100
Distributor Stock MOQ Country
OTL Components 2,100 - -
- - 400 kHz 4.5mA, 10mA - - - - - - I2C-compatible Yes - 6 mm - Surface Mount - 28 - -40°C to +125°C - 2.5V to 5.5V sinking 10mA and sourcing 4.5mA Push-Pull - - - - - 40-TQFN (6x6) - - - - 2.5V ~ 5.5V -
PCA9554PW,112
PCA9554PW,112
Download Datasheet for PCA9554PW,112
NXP Semiconductors
2,031
Across 3 distributors
Distributor Stock MOQ Country
Fe Components 2,016 - -
Flip Electronics 6 - -
Speed Components Ltd 9 - -
Price on request
2,031
Distributor Stock MOQ Country
Fe Components 2,016 - -
Flip Electronics 6 - -
Speed Components Ltd 9 - -
- - 0 Hz to 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C - - - Push-Pull - - - - - 16-TSSOP 16-TSSOP - - - 2.3V ~ 5.5V -
PCA9670PW,118
PCA9670PW,118
Download Datasheet for PCA9670PW,118
NXP Semiconductors
2,008
Across 2 distributors
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Partservice 8 - -
Price on request
2,008
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Partservice 8 - -
- - 1 MHz 25 mA - - POR; Active LOW reset input; Readable device ID; Software reset; Fast-mode Plus I2C-bus; SDA with 30 mA sink capability; Latched outputs with 25 mA sink capability; Total package sink capability of 200 mA; Sixty-four programmable slave addresses - - - I2C No - - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-TSSOP 16-TSSOP - - - 2.3V ~ 5.5V -
PI4IOE5V6416ZDEX
PI4IOE5V6416ZDEX
Download Datasheet for PI4IOE5V6416ZDEX
Diodes Incorporated
2,005
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 2,005 - -
Price on request
2,005
Distributor Stock MOQ Country
Xingangxin 2,005 - -
No - 400 kHz 10mA, 25mA - - POR - No - I2C Yes - 4 mm - Surface Mount - 16 - -40°C to 85°C - - - Open Drain, Push-Pull - - - - -65°C to 150°C 24-TQFN (4x4) - - - No 1.65V to 5.5V / -0.5V to 6.0V -
CAT9554HV4I-GT2
CAT9554HV4I-GT2
Download Datasheet for CAT9554HV4I-GT2
On Semiconductor
2,003
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 2,003 - -
Price on request
2,003
Distributor Stock MOQ Country
Smaxon Electronics 2,003 - -
- - 400 kHz [{'limit_type': 'typical', 'value': 10, 'unit': 'mA', 'display_value': '10mA'}, {'limit_type': 'typical', 'value': 24, 'unit': 'mA', 'display_value': '24mA'}] - - POR - Yes - I2C, SMBus Yes - - - Surface Mount - 8 - [{'minimum': -40, 'maximum': 85, 'unit': '°C', 'display_value': '-40°C ~ 85°C'}] - - - Push-Pull - - - - - 16-TQFN (4x4) - - - - [{'minimum': 2.3, 'maximum': 5.5, 'unit': 'V', 'display_value': '2.3 V ~ 5.5 V'}] -
PCA9534ADGVR
PCA9534ADGVR
Texas Instruments
2,000
From Rayichip
Distributor Stock MOQ Country
Rayichip 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Rayichip 2,000 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-TVSOP - - - - 2.3V ~ 5.5V -
NCA9555PW-Q100J
NCA9555PW-Q100J
Nexperia USA Inc.
2,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
- - - - - - POR - - - I²C, SMBus Yes - - - Surface Mount - 16 - - - - - Open Drain - - - - - 24-TSSOP 24-TSSOP - - - 1.65V ~ 5.5V -
PCA9537DPZ
PCA9537DPZ
NXP Semiconductors
2,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
- - 400 kHz 10mA, 24mA - - POR - - - I²C, SMBus Yes - 3.0 mm - Surface Mount - 4 - -40°C ~ 85°C - - - Push-Pull - - - - - 10-TSSOP - - - - 2.3V ~ 5.5V -
CAT9555HT6I-GT2
CAT9555HT6I-GT2
Download Datasheet for CAT9555HT6I-GT2
On Semiconductor
2,000
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
- - 400 kHz [{'limit_type': 'typical', 'value': 10, 'unit': 'mA', 'display_value': '10 mA'}, {'limit_type': 'typical', 'value': 24, 'unit': 'mA', 'display_value': '24 mA'}] - - POR - - - I2C, SMBus Yes - - - Surface Mount - 16 - [{'limit_type': 'minimum', 'value': -40, 'unit': '°C', 'display_value': '-40°C'}, {'limit_type': 'maximum', 'value': 85, 'unit': '°C', 'display_value': '85°C'}] - - - Push-Pull - - - - - 24-TQFN (4x4) 24-WFQFN Exposed Pad - - - [{'limit_type': 'minimum', 'value': 2.3, 'unit': 'V', 'display_value': '2.3V'}, {'limit_type': 'maximum', 'value': 5.5, 'unit': 'V', 'display_value': '5.5V'}] -
CS82C55A
CS82C55A
Renesas
2,000
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
- - - 2.5mA - - - - - - Parallel No - - - Surface Mount - 24 - 0°C ~ 70°C - - - Open Drain - - - - - 44-PLCC (16.58x16.58) - - - - 4.5V ~ 5.5V 4.5V ~ 5.5V
PCA9554CPWJ
PCA9554CPWJ
Download Datasheet for PCA9554CPWJ
NXP Semiconductors
2,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
- - 400 kHz 25mA - - POR - - - I²C, SMBus Yes - - Through Hole Surface Mount - 8-bit - -40°C ~ 85°C - - - Push-Pull - - - - - 16-TSSOP - - - - 1.65V ~ 5.5V -
PCA9554APWR
PCA9554APWR
Download Datasheet for PCA9554APWR
Texas Instruments
2,000
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
- - 400 kHz 10mA | 25mA - - POR - - - I2C, SMBus Yes Exceeds 100 mA - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - 16-TSSOP - - - 16-TSSOP - - - - 2.3V ~ 5.5V -
PCA9539AHF,128
PCA9539AHF,128
Download Datasheet for PCA9539AHF,128
NXP Semiconductors
2,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
No - 400 kHz 10 mA - - POR - No - I²C, SMBus Yes - 4 mm - Surface Mount - 16 - -40°C ~ 85°C - - - Push-Pull - - - - -40°C ~ 85°C 24-HWQFN (4x4) - - - No 1.65 V / 5.5 V -
PCAL6416AEX1Z
PCAL6416AEX1Z
Download Datasheet for PCAL6416AEX1Z
NXP Semiconductors
2,000
From Risen Electronics
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Risen Electronics 2,000 - -
- - 400 kHz 10mA, 25mA - - POR - - - I2C, SMBus Yes - 2.0 mm - Surface Mount - 16 - -40°C to 85°C - - - Open Drain, Push-Pull - - - - - 24-X2QFN (2x2) - - - - 1.65V to 5.5V -
CP82C55AZ
CP82C55AZ
Renesas
2,000
From Components Technology Group, Inc.
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
Price on request
2,000
Distributor Stock MOQ Country
Components Technology Group, Inc. 2,000 - -
- - - 2.5mA - - - - - - Parallel No - - - Through Hole - 24 24 0°C ~ 70°C - - - Open Drain - - - - - 40-PDIP 40-PDIP - - - 4.5V ~ 5.5V -
PCA9674APW,118
PCA9674APW,118
Download Datasheet for PCA9674APW,118
NXP Semiconductors
1,991
From PROSOFT ELECTRONICS
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 1,991 - -
Price on request
1,991
Distributor Stock MOQ Country
PROSOFT ELECTRONICS 1,991 - -
- - 1 MHz 100µA, 25mA - - POR - - - I²C Yes - - - Surface Mount - 8 8 -40°C ~ 85°C - 2.3 V ~ 5.5 V - Push-Pull - - - - - 16-TSSOP 16-TSSOP - - - 2.3V ~ 5.5V -
PCA9539PWR
PCA9539PWR
Texas Instruments
1,949
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 1,949 - -
Price on request
1,949
Distributor Stock MOQ Country
Smaxon Electronics 1,949 - -
- - 400 kHz 10mA, 25mA - 2000V (HBM) POR - - - I2C, SMBus Yes >100 mA - - Surface Mount - 16 - -40°C to 85°C - - - Push-Pull - - - - - 24-TSSOP - - - - 2.3V to 5.5V -
PCA9534ADBR
PCA9534ADBR
Texas Instruments
1,915
From Smaxon Electronics
Distributor Stock MOQ Country
Smaxon Electronics 1,915 - -
Price on request
1,915
Distributor Stock MOQ Country
Smaxon Electronics 1,915 - -
No - 400kHz 10mA - - POR - No - I2C, SMBus Yes - 0.209 mm - Surface Mount - 8 - -40°C - - - Push-Pull - - - - - 16-SSOP - - - - 2.3V -
SX1505I087TRT
SX1505I087TRT
Download Datasheet for SX1505I087TRT
Semtech
1,905
From Bristol Electronics
Distributor Stock MOQ Country
Bristol Electronics 1,905 - -
Price on request
1,905
Distributor Stock MOQ Country
Bristol Electronics 1,905 - -
- - 400 kHz 8mA, 24mA - - POR - - - I²C Yes - - - Surface Mount - 8 - -40°C ~ 85°C - 2.5V ~ 5.5V - Push-Pull - - - - - 20-QFN-UT (3x3) - - - - 2.5V ~ 5.5V -
MCP23017T-E/SO
MCP23017T-E/SO
Download Datasheet for MCP23017T-E/SO
Microchip Technology
1,865
Across 3 distributors
Distributor Stock MOQ Country
Speed Components Ltd 5 - -
Xingangxin 960 - -
Smaxon Electronics 900 - -
Price on request
1,865
Distributor Stock MOQ Country
Speed Components Ltd 5 - -
Xingangxin 960 - -
Smaxon Electronics 900 - -
- - 1.7 MHz 25mA - - POR - - - I²C Yes - - Through Hole Or Surface Mount Surface Mount - 16 16 -40°C ~ 125°C - - - Push-Pull - - - - - 28-SOIC - - - - 1.8V ~ 5.5V -
CP82C55A-5
CP82C55A-5
Intersil
1,842
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 1,842 - -
Price on request
1,842
Distributor Stock MOQ Country
Xingangxin 1,842 - -
- - - 2.5mA - - - - - - Parallel No - 15.24 mm - Through Hole - 24 - 0°C ~ 70°C - - - Open Drain - - - - - 40-PDIP - - - - 4.5V ~ 5.5V -
PCA9538PW
PCA9538PW
Texas Instruments
1,842
From Xingangxin
Distributor Stock MOQ Country
Xingangxin 1,842 - -
Price on request
1,842
Distributor Stock MOQ Country
Xingangxin 1,842 - -
- - 400 kHz 10mA, 25mA - - POR - - - I²C, SMBus Yes - - - Surface Mount - 8 - -40°C ~ 85°C - - - Push-Pull - - - - - 16-TSSOP - - - - 2.3V to 5.5V -
Showing 251-300 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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