I2C General Purpose I/O Expanders

NXP Semiconductors I2C General Purpose I/O Expanders provide GPIO expansion for most microprocessor families, allowing designers to save the GPIOs on microprocessors for other important functions. Designers can utilize the microprocessor GPIOs for important functions and use the I/O expander for other duties, including system monitoring, ACPI power switches, sensors, push buttons, LEDs, fans, and more. NXP GPIO expanders are ideal for adding fan and LED control to systems. They are also ideal for monitoring system functions and accepting push-button inputs.

Results: 31
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Series Mounting Style Package/Case Interface Type Number of I/Os Interrupt Output Supply Voltage - Min Supply Voltage - Max Maximum Clock Frequency Minimum Operating Temperature Maximum Operating Temperature Packaging ESD Protection
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in TSSOP16 package 3.210In Stock
Cut Tape
Rp30.271
Rp22.382
Rp20.181
Rp17.869
Reel
Rp14.677
Min.: 1
Mult.: 1
: 2.500
PCA9554C SMD/SMT TSSOP-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 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in VFBGA24 package 4.828In Stock
Cut Tape
Rp33.206
Rp24.584
Rp22.199
Rp19.814
Reel
Rp16.456
Min.: 1
Mult.: 1
: 6.000
PCA6416 SMD/SMT VFBGA-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

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package 20.346In Stock
18.000Expected 26/04/2027
Cut Tape
Rp33.206
Rp24.400
Rp22.199
Rp19.447
Reel
Rp16.548
Min.: 1
Mult.: 1
: 6.000
PCA9538A 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 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in HWQFN24 package 17.014In Stock
Cut Tape
Rp36.875
Rp28.253
Rp25.134
Rp22.933
Reel
Rp19.263
Min.: 1
Mult.: 1
: 6.000
PCA9539A SMD/SMT HWQFN-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
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554C in TSSOP16 package 20.362In Stock
25.000Expected 17/01/2028
Cut Tape
Rp29.170
Rp21.832
Rp20.914
Rp18.713
Reel
Rp15.099
Min.: 1
Mult.: 1
: 2.500
PCA9554B SMD/SMT TSSOP-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 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package 48.263In Stock
Cut Tape
Rp35.591
Rp27.886
Rp24.767
Rp22.382
Reel
Rp19.080
Min.: 1
Mult.: 1
: 6.000
PCA9555A SMD/SMT HWQFN-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
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package 51.659In Stock
Cut Tape
Rp27.519
Rp19.997
Rp18.126
Rp15.943
Reel
Rp13.429
Min.: 1
Mult.: 1
: 6.000
PCAL6408A SMD/SMT HVQFN-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 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in XQFN16 package 39.241In Stock
56.000Expected 28/12/2026
Cut Tape
Rp24.217
Rp17.539
Rp15.888
Rp14.071
Reel
Rp11.650
Min.: 1
Mult.: 1
: 4.000
PCAL6408A SMD/SMT XQFN-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 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package 36.322In Stock
Cut Tape
Rp26.602
Rp19.447
Rp18.529
Rp16.401
Reel
Rp13.870
Min.: 1
Mult.: 1
: 2.500
PCAL6408A SMD/SMT TSSOP-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/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package 86.008In Stock
Cut Tape
Rp29.537
Rp21.648
Rp19.630
Rp17.337
Reel
Rp14.163
Min.: 1
Mult.: 1
: 6.000
PCAL6416A SMD/SMT HWQFN-24 I2C, Serial, SMBus 16 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 HWQFN24 package 21.219In Stock
Cut Tape
Rp42.930
Rp34.307
Rp31.372
Rp28.069
Reel
Rp23.483
Min.: 1
Mult.: 1
: 6.000
PCAL9535A 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
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package 7.159In Stock
7.500Expected 29/10/2026
Cut Tape
Rp45.131
Rp33.390
Rp32.106
Rp28.803
Reel
Rp24.584
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 HWQFN24 package 12.959In Stock
12.000Expected 26/10/2026
Cut Tape
Rp42.196
Rp31.739
Rp29.354
Rp28.436
Reel
Rp24.217
Min.: 1
Mult.: 1
: 6.000
PCAL9539A SMD/SMT HWQFN-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
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package 14.972In Stock
18.000Expected 02/11/2026
Cut Tape
Rp37.426
Rp27.702
Rp25.317
Rp22.566
Reel
Rp18.896
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

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package 6.811In Stock
12.000Expected 26/04/2027
Cut Tape
Rp25.868
Rp18.713
Rp16.970
Rp15.007
Reel
Rp12.365
Min.: 1
Mult.: 1
: 6.000
PCA6408A SMD/SMT HVQFN-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 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP16 package 2.586In Stock
Cut Tape
Rp25.868
Rp18.713
Rp16.970
Rp15.007
Reel
Rp13.191
Min.: 1
Mult.: 1
: 2.500
PCA6408A SMD/SMT TSSOP-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/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package 14.731In Stock
Cut Tape
Rp30.821
Rp23.299
Rp21.281
Rp19.263
Reel
Rp16.200
Min.: 1
Mult.: 1
: 6.000
PCA6416 SMD/SMT HWQFN-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
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP24 package 5.062In Stock
Cut Tape
Rp33.390
Rp24.584
Rp22.382
Rp19.997
Reel
Rp16.823
Min.: 1
Mult.: 1
: 2.500
PCA6416 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
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in HWQFN24 package 10.750In Stock
Cut Tape
Rp38.160
Rp28.253
Rp25.684
Rp22.933
Reel
Rp19.080
Min.: 1
Mult.: 1
: 6.000
PCA9535A SMD/SMT HWQFN-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
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in TSSOP24 package 2.077In Stock
12.500Expected 16/11/2026
Cut Tape
Rp38.343
Rp28.253
Rp25.684
Rp22.933
Reel
Rp19.997
Min.: 1
Mult.: 1
: 2.500
PCA9535A 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
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package 4.042In Stock
5.000Expected 01/02/2027
Cut Tape
Rp32.106
Rp23.850
Rp21.832
Rp19.447
Reel
Rp16.897
Min.: 1
Mult.: 1
: 2.500
PCA9538A SMD/SMT TSSOP-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 2 kV

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address than PCA9554C in HVQFN16 package 11.972In Stock
60.000On Order
Cut Tape
Rp31.188
Rp22.933
Rp20.914
Rp18.529
Reel
Rp14.347
Min.: 1
Mult.: 1
: 6.000
PCA9554B 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 I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package 4.769In Stock
6.000Expected 26/04/2027
Cut Tape
Rp31.372
Rp23.116
Rp20.914
Rp18.529
Reel
Rp15.025
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 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA24 package 7.214In Stock
Cut Tape
Rp30.087
Rp22.199
Rp20.181
Rp17.814
Reel
Rp14.658
Min.: 1
Mult.: 1
: 6.000
PCAL6416A SMD/SMT VFBGA-24 I2C, Serial, SMBus 16 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 Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package 7.006In Stock
20.000Expected 26/10/2026
Cut Tape
Rp31.188
Rp22.933
Rp20.731
Rp18.346
Reel
Rp15.521
Min.: 1
Mult.: 1
: 2.500
PCAL6416A SMD/SMT TSSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV