25 mA Interface - I/O Expanders

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Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
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Interface Type
Number of I/Os
Interrupt Output
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Supply Voltage - Max
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ESD Protection
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package
Datasheet
7 983In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL9538A SMD/SMT HVQFN-16 I2C, Serial 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package
Datasheet
12 410In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCAL9538A SMD/SMT TSSOP-16 I2C, Serial 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package
Datasheet
9 281In Stock
18 000Expected 10/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL9555A SMD/SMT HWQFN-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Microchip Technology Interface - I/O Expanders In/Out I2C int
Datasheet
664In Stock
2 300Expected 9/21/2026
Min.: 1
Mult.: 1

Through Hole PDIP-18 I2C, Serial 8 I/O With Interrupt 1.8 V 5.5 V 1.7 MHz - 40 C + 125 C Tube Without ESD Protection
Microchip Technology Interface - I/O Expanders 8-bit I/O Expander I2C interface
Datasheet
277In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-18 I2C, Serial 8 I/O With Interrupt 1.8 V 5.5 V 3.4 MHz - 40 C + 125 C Tube 4 kV
Microchip Technology Interface - I/O Expanders 8-bit I/O Expander I2C interface
Datasheet
35In Stock
336Expected 9/4/2026
Min.: 1
Mult.: 1

SMD/SMT SOIC-18 I2C, Serial 8 I/O With Interrupt 1.8 V 5.5 V 3.4 MHz - 40 C + 125 C Tube 4 kV
Microchip Technology Interface - I/O Expanders 16B I/O Expander I2C interface
Datasheet
281In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-28 I2C, Serial 16 I/O With Interrupt 1.8 V 5.5 V 3.4 MHz - 40 C + 125 C Tube Without ESD Protection
Microchip Technology Interface - I/O Expanders 16B I/O Expander I2C interface
Datasheet
406In Stock
Min.: 1
Mult.: 1

Through Hole SPDIP-28 I2C, Serial 16 I/O With Interrupt 1.8 V 5.5 V 3.4 MHz - 40 C + 125 C Tube Without ESD Protection
Microchip Technology Interface - I/O Expanders 8-bit I/O Expander SPI interface
Datasheet
211In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-18 Serial, SPI 8 I/O With Interrupt 1.8 V 5.5 V 10 MHz - 40 C + 125 C Tube 4 kV
Microchip Technology Interface - I/O Expanders 8-bit I/O Expander SPI interface
Datasheet
288In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-18 Serial, SPI 8 I/O With Interrupt 1.8 V 5.5 V 10 MHz - 40 C + 125 C Tube 4 kV
Texas Instruments Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9535DWR
Datasheet
86In Stock
Min.: 1
Mult.: 1

PCA9535 SMD/SMT SOIC-24 I2C, Serial, SMBus 16 I/O With Interrupt 2.3 V 5.5 V 400 kHz - 40 C + 85 C Tube 2 kV
Texas Instruments Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DBR
Datasheet
164In Stock
Min.: 1
Mult.: 1

PCA9539 SMD/SMT SSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 2.3 V 5.5 V 400 kHz - 40 C + 85 C Tube 2 kV
Texas Instruments Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander
Datasheet
359In Stock
12 500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA9534 SMD/SMT VQFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 2.3 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Texas Instruments Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander
Datasheet
76In Stock
3 000Expected 10/22/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

PCA9539 SMD/SMT VQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 2.3 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV

Analog Devices / Maxim Integrated Interface - I/O Expanders I C Port Expander with Eight Push-Pull O
Datasheet
402In Stock
Min.: 1
Mult.: 1

MAX7320 SMD/SMT QSOP-16 I2C, Serial 8 I/O Without Interrupt 1.71 V 5.5 V 400 kHz - 40 C + 125 C Tube Without ESD Protection

Analog Devices / Maxim Integrated Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu
Datasheet
66In Stock
Min.: 1
Mult.: 1

MAX7322 SMD/SMT QSOP-16 I2C, Serial 4 I/O With Interrupt 1.71 V 5.5 V 400 kHz - 40 C + 125 C Tube Without ESD Protection

Analog Devices / Maxim Integrated Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os
Datasheet
192In Stock
Min.: 1
Mult.: 1

MAX7323 SMD/SMT QSOP-16 I2C, Serial 4 I/O With Interrupt 1.71 V 5.5 V 400 kHz - 40 C + 125 C Tube Without ESD Protection
Analog Devices / Maxim Integrated Interface - I/O Expanders I C Port Expander with 8 Push-Pull and 8
Datasheet
275In Stock
Min.: 1
Mult.: 1

MAX7325 SMD/SMT TQFN-EP-24 I2C, Serial 8 I/O With Interrupt 1.71 V 5.5 V 400 kHz - 40 C + 125 C Tube Without ESD Protection

Analog Devices / Maxim Integrated Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp
Datasheet
49In Stock
Min.: 1
Mult.: 1

MAX7326 SMD/SMT QSOP-24 I2C, Serial 16 I/O With Interrupt 1.71 V 5.5 V 400 kHz - 40 C + 125 C Tube Without ESD Protection
Nexperia Interface - I/O Expanders NCA9555PW-Q100/SOT355/TSSOP24
Datasheet
5In Stock
2 500Expected 9/18/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

SMD/SMT TSSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with 2-kbit EEPROM and Quasi feature in TSSOP16 package
Datasheet
821In Stock
2 500Expected 8/24/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA9500 SMD/SMT TSSOP-16 I2C, Serial, SMBus 8 I/O Without Interrupt 2.5 V 3.6 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package
Datasheet
2 266In Stock
6 000Expected 8/20/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA9554C SMD/SMT HVQFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN16 package
Datasheet
3 523In Stock
15 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

PCAL6408A SMD/SMT X2QFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package
Datasheet
110In Stock
20 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCAL9535A SMD/SMT TSSOP-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package
Datasheet
110In Stock
7 500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCAL9539A SMD/SMT TSSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV