.hide-partial { max-height: none; } .show-more { display: none; }

Interface - I/O Expanders

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 296

Applied Filters:

Manufacturer = Multiple Values

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

Qualification

Packaging

ESD Protection

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Interface - I/O Expanders 1.65V to 5.5V Remote 4-Bit I2C and SMBus

TCA9536ADTMR
Texas Instruments
1: HK$14.63
7,695In Stock

Mfr. Part No.
TCA9536ADTMR

Mouser Part No
595-TCA9536ADTMR

Texas Instruments

Interface - I/O Expanders 1.65V to 5.5V Remote 4-Bit I2C and SMBus

Learn More

Datasheet

7,695In Stock

Cut Tape

HK$14.63

HK$10.77

HK$9.78

HK$8.71

View

Reel

HK$7.17

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

TCA9536

SMD/SMT

X2SON-8

I2C, SMBus

4 I/O

With Interrupt

1.65 V

5.5 V

1 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

1 kV, 2 kV, 4 kV

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan

TCA9538DBR
Texas Instruments
1: HK$17.59
2,785In Stock

Mfr. Part No.
TCA9538DBR

Mouser Part No
595-TCA9538DBR

Texas Instruments

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan

Datasheet

2,785In Stock

Cut Tape

HK$17.59

HK$13.15

HK$12.08

HK$10.85

Reel

HK$9.54

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

TCA9538

SMD/SMT

SSOP-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

Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander

TCA9539PWR
Texas Instruments
1: HK$14.14
19,692In Stock

Mfr. Part No.
TCA9539PWR

Mouser Part No
595-TCA9539PWR

Texas Instruments

Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander

Datasheet

19,692In Stock

Cut Tape

HK$14.14

HK$10.44

HK$9.95

Reel

HK$9.95

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

TCA9539

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

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan

TCA9554ADBR
Texas Instruments
1: HK$12.41
2,646In Stock

Mfr. Part No.
TCA9554ADBR

Mouser Part No
595-TCA9554ADBR

Texas Instruments

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan

Learn More

Datasheet

2,646In Stock

Cut Tape

HK$12.41

HK$9.04

HK$8.19

HK$7.27

Reel

HK$6.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

TCA9554A

SMD/SMT

SSOP-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

Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander

TCA9554APWR
Texas Instruments
1: HK$12.41
7,900In Stock

Mfr. Part No.
TCA9554APWR

Mouser Part No
595-TCA9554APWR

Texas Instruments

Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander

Learn More

Datasheet

7,900In Stock

Cut Tape

HK$12.41

HK$9.04

HK$8.19

HK$7.27

Reel

HK$6.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

TCA9554A

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

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan

TCA9554DBR
Texas Instruments
1: HK$13.73
2,163In Stock

Mfr. Part No.
TCA9554DBR

Mouser Part No
595-TCA9554DBR

Texas Instruments

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan

Learn More

Datasheet

2,163In Stock

Cut Tape

HK$13.73

HK$10.03

HK$9.12

HK$8.10

Reel

HK$6.72

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

TCA9554

SMD/SMT

SSOP-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

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT

TCA9554DWR
Texas Instruments
1: HK$13.73
1,598In Stock

Mfr. Part No.
TCA9554DWR

Mouser Part No
595-TCA9554DWR

Texas Instruments

Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT

Learn More

Datasheet

1,598In Stock

Cut Tape

HK$13.73

HK$10.03

HK$9.12

HK$8.10

Reel

HK$6.81

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

TCA9554

SMD/SMT

SOIC-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

Interface - I/O Expanders 1.65 to 5.5V 16bit I /O Expander A 595-T A 595-TCA9555DBT

TCA9555DBR
Texas Instruments
1: HK$16.28
3,893In Stock

Mfr. Part No.
TCA9555DBR

Mouser Part No
595-TCA9555DBR

Texas Instruments

Interface - I/O Expanders 1.65 to 5.5V 16bit I /O Expander A 595-T A 595-TCA9555DBT

Learn More

Datasheet

3,893In Stock

Cut Tape

HK$16.28

HK$12.08

HK$10.93

HK$9.78

Reel

HK$8.30

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

TCA9555

SMD/SMT

SSOP-24

I2C, Serial, SMBus

16 I/O

With Interrupt

5.5 V

400 kHz

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

2 kV

Interface - I/O Expanders Remote 16B I2C & SMB us I/O Expander

TCA9555RTWR
Texas Instruments
1: HK$14.39
4,568In Stock
18,000Expected 10/12/2026

Mfr. Part No.
TCA9555RTWR

Mouser Part No
595-TCA9555RTWR

Texas Instruments

Interface - I/O Expanders Remote 16B I2C & SMB us I/O Expander

Learn More

Datasheet

4,568In Stock

18,000Expected 10/12/2026

Cut Tape

HK$14.39

HK$10.60

HK$9.62

HK$8.55

View

Reel

HK$7.70

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,001

: 3,000

TCA9555

SMD/SMT

WQFN-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

Interface - I/O Expanders In/Out I2C int

MCP23008-E/P
Microchip Technology
1: HK$12.66
659In Stock
2,425Expected 14/9/2026

Mfr. Part No.
MCP23008-E/P

Mouser Part No
579-MCP23008-E/P

Microchip Technology

Interface - I/O Expanders In/Out I2C int

Datasheet

659In Stock

2,425Expected 14/9/2026

HK$12.66

HK$10.52

HK$10.19

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

Interface - I/O Expanders 8-bit I/O Expander I2C interface

MCP23009-E/P
Microchip Technology
1: HK$13.07
277In Stock

Mfr. Part No.
MCP23009-E/P

Mouser Part No
579-MCP23009-E/P

Microchip Technology

Interface - I/O Expanders 8-bit I/O Expander I2C interface

Datasheet

277In Stock

HK$13.07

HK$10.85

HK$10.03

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

Interface - I/O Expanders 8-bit I/O Expander I2C interface

MCP23009-E/SO
Microchip Technology
1: HK$12.49
35In Stock
336Expected 4/9/2026

Mfr. Part No.
MCP23009-E/SO

Mouser Part No
579-MCP23009-E/SO

Microchip Technology

Interface - I/O Expanders 8-bit I/O Expander I2C interface

Datasheet

35In Stock

336Expected 4/9/2026

HK$12.49

HK$10.44

HK$9.45

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

Interface - I/O Expanders 16B I/O Expander I2C interface

MCP23018-E/SO
Microchip Technology
1: HK$16.77
281In Stock

Mfr. Part No.
MCP23018-E/SO

Mouser Part No
579-MCP23018-E/SO

Microchip Technology

Interface - I/O Expanders 16B I/O Expander I2C interface

Datasheet

281In Stock

HK$16.77

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

Interface - I/O Expanders 16B I/O Expander I2C interface

MCP23018-E/SP
Microchip Technology
1: HK$17.51
406In Stock

Mfr. Part No.
MCP23018-E/SP

Mouser Part No
579-MCP23018-E/SP

Microchip Technology

Interface - I/O Expanders 16B I/O Expander I2C interface

Datasheet

406In Stock

HK$17.51

HK$14.63

HK$13.23

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

Interface - I/O Expanders 8-bit I/O Expander SPI interface

MCP23S09-E/P
Microchip Technology
1: HK$13.89
211In Stock

Mfr. Part No.
MCP23S09-E/P

Mouser Part No
579-MCP23S09-E/P

Microchip Technology

Interface - I/O Expanders 8-bit I/O Expander SPI interface

Datasheet

211In Stock

HK$13.89

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

Interface - I/O Expanders 8-bit I/O Expander SPI interface

MCP23S09-E/SO
Microchip Technology
1: HK$13.32
288In Stock

Mfr. Part No.
MCP23S09-E/SO

Mouser Part No
579-MCP23S09-E/SO

Microchip Technology

Interface - I/O Expanders 8-bit I/O Expander SPI interface

Datasheet

288In Stock

HK$13.32

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

Interface - I/O Expanders 16B I/O Expander SPI interface

MCP23S18-E/SP
Microchip Technology
1: HK$18.58
563In Stock

Mfr. Part No.
MCP23S18-E/SP

Mouser Part No
579-MCP23S18-E/SP

Microchip Technology

Interface - I/O Expanders 16B I/O Expander SPI interface

Datasheet

563In Stock

HK$18.58

HK$15.45

HK$13.97

Min.: 1
Mult.: 1

Through Hole

PDIP-28

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders Digital CAN I/O

MCP25020-I/P
Microchip Technology
1: HK$31.32
117In Stock

Mfr. Part No.
MCP25020-I/P

Mouser Part No
579-MCP25020-I/P

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

117In Stock

HK$31.32

HK$26.14

HK$25.32

Min.: 1
Mult.: 1

Through Hole

PDIP-14

CAN

8 I/O

Without Interrupt

2.75 V

5.5 V

25 MHz

- 65 C

+ 150 C

Tube

3.5 kV

Interface - I/O Expanders Digital CAN I/O

MCP25020-I/SL
Microchip Technology
1: HK$29.92
89In Stock

Mfr. Part No.
MCP25020-I/SL

Mouser Part No
579-MCP25020-I/SL

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

89In Stock

HK$29.92

HK$24.91

HK$24.00

Min.: 1
Mult.: 1

SMD/SMT

SOIC-14

CAN

8 I/O

Without Interrupt

2.75 V

5.5 V

25 MHz

- 40 C

+ 85 C

Tube

3.5 kV

Interface - I/O Expanders Mixed signal Expandr

MCP25050-E/P
Microchip Technology
1: HK$49.90
27In Stock

Mfr. Part No.
MCP25050-E/P

Mouser Part No
579-MCP25050-E/P

Microchip Technology

Interface - I/O Expanders Mixed signal Expandr

Datasheet

27In Stock

HK$49.90

HK$41.68

HK$40.28

Min.: 1
Mult.: 1

Through Hole

PDIP-14

CAN

8 I/O

Without Interrupt

5.5 V

25 MHz

- 65 C

+ 150 C

Tube

3.5 kV

Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534ADB

PCA9534ADBR
Texas Instruments
1: HK$32.88
403In Stock

Mfr. Part No.
PCA9534ADBR

Mouser Part No
595-PCA9534ADBR

Texas Instruments

Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534ADB

Datasheet

403In Stock

Cut Tape

HK$32.88

HK$24.82

HK$22.77

HK$20.55

View

Reel

HK$18.08

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

PCA9534A

SMD/SMT

SSOP-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

Interface - I/O Expanders Rem 8B I2C & Lo-Pwr I/O Expander A 595-P A 595-PCA9534DBR

PCA9534DB
Texas Instruments
1: HK$41.43
109In Stock

Mfr. Part No.
PCA9534DB

Mouser Part No
595-PCA9534DB

Texas Instruments

Interface - I/O Expanders Rem 8B I2C & Lo-Pwr I/O Expander A 595-P A 595-PCA9534DBR

Datasheet

109In Stock

HK$41.43

HK$31.56

HK$26.80

HK$25.65

View

Min.: 1
Mult.: 1

PCA9534

SMD/SMT

SSOP-16

I2C, Serial, SMBus

8 I/O

With Interrupt

2.3 V

5.5 V

400 kHz

- 40 C

+ 85 C

Tube

2 kV

Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534DW

PCA9534DWR
Texas Instruments
1: HK$26.88
85In Stock
4,000Expected 14/9/2026

Mfr. Part No.
PCA9534DWR

Mouser Part No
595-PCA9534DWR

Texas Instruments

Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534DW

Datasheet

85In Stock

4,000Expected 14/9/2026

Cut Tape

HK$26.88

HK$20.14

HK$18.41

HK$16.52

Reel

HK$14.14

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

PCA9534

SMD/SMT

SOIC-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

Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9535DWR

PCA9535DW
Texas Instruments
1: HK$43.73
86In Stock

Mfr. Part No.
PCA9535DW

Mouser Part No
595-PCA9535DW

Texas Instruments

Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9535DWR

Datasheet

86In Stock

HK$43.73

HK$34.28

HK$29.10

HK$27.78

View

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

Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DBR

PCA9539DB
Texas Instruments
1: HK$40.44
70In Stock

Mfr. Part No.
PCA9539DB

Mouser Part No
595-PCA9539DB

Texas Instruments

Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DBR

Datasheet

70In Stock

HK$40.44

HK$30.83

HK$28.44

HK$25.65

View

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

Interface - I/O Expanders

Customer Service Office

Company

Resources

Support

LM8323
LM8325
LM8327
LM8328
LM8330
LM8333
LM8335
MCP23017
MCP23S17
MCP23S18
PCA9518
PCA9534
PCA9534A
PCA9535
PCA9536
PCA9538
PCA9539
PCA9554
PCA9554A
PCA9555

CSBGA-25
CSBGA-36
csBGA-36
CSBGA-49
DSBGA-16
DSBGA-25
FBGA-896
PDIP-14
PDIP-16
PDIP-18
PDIP-28
QFN-16
QFN-20
QFN-24
QFN-28
QSOP-20
QSOP-24
SOIC-14
SOIC-16
SOIC-18