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400 kHz Interface ICs

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Maximum Clock Frequency = 400 kHz

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Part #

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555, High-Impedance I/O in HWQFN24 package

PCA9535CHF,118
NXP Semiconductors
1: $2.54
1,550In Stock
6,000Expected 2026/10/26

Mfr. Part No.
PCA9535CHF,118

Mouser Part No
771-PCA9535CHF118

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555, High-Impedance I/O in HWQFN24 package

Datasheet

1,550In Stock

6,000Expected 2026/10/26

Cut Tape

$2.54

$1.90

$1.73

$1.55

View

Reel

$1.28

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

I/O Expanders

General Purpose

I2C, Serial, SMBus

SMD/SMT

HWQFN-24

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in TSSOP24 package

PCA9535PW,118
NXP Semiconductors
1: $2.61
3,887In Stock
10,000Expected 2026/10/12

Mfr. Part No.
PCA9535PW,118

Mouser Part No
771-PCA9535PW-T

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in TSSOP24 package

Datasheet

3,887In Stock

10,000Expected 2026/10/12

Cut Tape

$2.61

$1.95

$1.78

$1.60

Reel

$1.37

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I/O Expanders

General Purpose

I2C, Serial, SMBus

SMD/SMT

TSSOP-24

Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in HVSON8 package

PCA9536TK,118
NXP Semiconductors
1: $1.95
9,050In Stock
18,000Expected 2026/09/07

Mfr. Part No.
PCA9536TK,118

Mouser Part No
771-PCA9536TK118

NXP Semiconductors

Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in HVSON8 package

Datasheet

9,050In Stock

18,000Expected 2026/09/07

Cut Tape

$1.95

$1.44

$1.31

$1.17

View

Reel

$0.969

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HVSON-8

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package

PCA9538PW,118
NXP Semiconductors
1: $2.44
6,032In Stock

Mfr. Part No.
PCA9538PW,118

Mouser Part No
771-PCA9538PW-T

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package

Datasheet

6,032In Stock

Cut Tape

$2.44

$1.83

$1.66

$1.49

Reel

$1.26

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I/O Expanders

I2C, Serial, SMBus

SMD/SMT

TSSOP-16

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package

PCA9538PW/Q900,118
NXP Semiconductors
1: $2.97
1,828In Stock

Mfr. Part No.
PCA9538PW/Q900,118

Mouser Part No
771-PCA9538PW/Q90011

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package

Datasheet

1,828In Stock

Cut Tape

$2.97

$2.21

$2.02

$1.83

Reel

$1.52

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I/O Expanders

I2C, Serial, SMBus

SMD/SMT

TSSOP-16

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package

PCA9539PW,118
NXP Semiconductors
1: $2.26
4,942In Stock
17,500On Order

Mfr. Part No.
PCA9539PW,118

Mouser Part No
771-PCA9539PW-T

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package

Datasheet

4,942In Stock

17,500On Order

Cut Tape

$2.26

$1.74

$1.54

$1.38

Reel

$1.21

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I/O Expanders

General Purpose

I2C, Serial, SMBus

SMD/SMT

TSSOP-24

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554 in TSSOP16 package

PCA9554APW,118
NXP Semiconductors
1: $2.11
7,152In Stock

Mfr. Part No.
PCA9554APW,118

Mouser Part No
771-PCA9554APW-T

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554 in TSSOP16 package

Datasheet

7,152In Stock

Cut Tape

$2.11

$1.56

$1.43

$1.27

Reel

$1.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-16

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in SO24 package

PCA9555D,118
NXP Semiconductors
1: $2.92
4,443In Stock
7,000Expected 2026/09/14

Mfr. Part No.
PCA9555D,118

Mouser Part No
771-PCA9555D-T

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in SO24 package

Learn More

Datasheet

4,443In Stock

7,000Expected 2026/09/14

Cut Tape

$2.92

$2.17

$2.00

$1.80

Reel

$1.57

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

SO-24

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in SSOP24 package

PCA9555DB,118
NXP Semiconductors
1: $3.11
6,683In Stock

Mfr. Part No.
PCA9555DB,118

Mouser Part No
771-PCA9555DB-T

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in SSOP24 package

Datasheet

6,683In Stock

Cut Tape

$3.11

$2.33

$2.13

$1.92

Reel

$1.67

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

SSOP-24

Interface - Signal Buffers, Repeaters Ultra Low Power 10.3 Gbps 2Ch Repeater A A 926-DS64BR111SQ/NOPB

DS64BR111SQE/NOPB
Texas Instruments
1: $16.25
154In Stock

Mfr. Part No.
DS64BR111SQE/NOPB

Mouser Part No
926-DS64BR111SQENOPB

Texas Instruments

Interface - Signal Buffers, Repeaters Ultra Low Power 10.3 Gbps 2Ch Repeater A A 926-DS64BR111SQ/NOPB

Datasheet

154In Stock

Cut Tape

$16.25

$12.86

$12.03

$11.13

Reel

$11.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

Signal Buffers, Repeaters

Repeaters

I2C, SMBus

SMD/SMT

WQFN-24

Interface - Signal Buffers, Repeaters I2C Bus Extender

P82B715P
Texas Instruments
1: $3.90
412In Stock

Mfr. Part No.
P82B715P

Mouser Part No
595-P82B715P

Texas Instruments

Interface - Signal Buffers, Repeaters I2C Bus Extender

Datasheet

412In Stock

$3.90

$2.94

$2.55

$2.41

View

Min.: 1
Mult.: 1

Signal Buffers, Repeaters

Bus Extenders

I2C Bus

I2C

Through Hole

PDIP-8

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

PCA9534ADBR
Texas Instruments
1: $4.00
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

$4.00

$3.02

$2.77

$2.50

View

Reel

$2.20

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

SSOP-16

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

PCA9534DB
Texas Instruments
1: $5.04
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

$5.04

$3.84

$3.26

$3.12

View

Min.: 1
Mult.: 1

I/O Expanders

I2C, Serial, SMBus

SMD/SMT

SSOP-16

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

PCA9534DWR
Texas Instruments
1: $3.27
85In Stock
4,000Expected 2026/09/17

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 2026/09/17

Cut Tape

$3.27

$2.45

$2.24

$2.01

Reel

$1.72

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

SOIC-16

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

PCA9535DW
Texas Instruments
1: $5.33
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

$5.33

$4.18

$3.54

$3.38

View

Min.: 1
Mult.: 1

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

SOIC-24

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

PCA9539DB
Texas Instruments
1: $4.92
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

$4.92

$3.76

$3.47

$3.12

View

Min.: 1
Mult.: 1

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

SSOP-24

Interface - I/O Expanders Rem 8B I2C & SMBus I /O Expander

PCA9554ADGVR
Texas Instruments
1: $3.02
69In Stock

Mfr. Part No.
PCA9554ADGVR

Mouser Part No
595-PCA9554ADGVR

Texas Instruments

Interface - I/O Expanders Rem 8B I2C & SMBus I /O Expander

Learn More

Datasheet

69In Stock

Cut Tape

$3.02

$2.26

$2.06

$1.85

$1.76

Reel

$1.48

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TVSOP-16

Interface - I/O Expanders Rem 8B I2C & SMBus I /O Expander

PCA9554ARGVR
Texas Instruments
1: $2.86
95In Stock
2,500Expected 2026/09/03

Mfr. Part No.
PCA9554ARGVR

Mouser Part No
595-PCA9554ARGVR

Texas Instruments

Interface - I/O Expanders Rem 8B I2C & SMBus I /O Expander

Learn More

Datasheet

95In Stock

2,500Expected 2026/09/03

Cut Tape

$2.86

$2.14

$1.97

$1.76

Reel

$1.50

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

VQFN-16

Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CPW

PCF8575CPWR
Texas Instruments
1: $4.81
108In Stock

Mfr. Part No.
PCF8575CPWR

Mouser Part No
595-PCF8575CPWR

Texas Instruments

Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CPW

Datasheet

108In Stock

Cut Tape

$4.81

$4.78

$4.41

$4.09

View

Reel

$3.61

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-24

Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575DB

PCF8575DBR
Texas Instruments
1: $3.69
217In Stock
4,000Expected 2026/08/26

Mfr. Part No.
PCF8575DBR

Mouser Part No
595-PCF8575DBR

Texas Instruments

Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575DB

Datasheet

217In Stock

4,000Expected 2026/08/26

Cut Tape

$3.69

$2.78

$2.55

$2.30

Reel

$1.98

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

SSOP-24

Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575PW

PCF8575PWR
Texas Instruments
1: $2.63
106In Stock
10,000Expected 2026/10/08

Mfr. Part No.
PCF8575PWR

Mouser Part No
595-PCF8575PWR

Texas Instruments

Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575PW

Datasheet

106In Stock

10,000Expected 2026/10/08

Cut Tape

$2.63

$1.97

$1.79

$1.60

Reel

$1.38

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-24

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package

PCA6408ABSHP
NXP Semiconductors
1: $1.40
1,608In Stock
6,000Expected 2026/10/14

Mfr. Part No.
PCA6408ABSHP

Mouser Part No
771-PCA6408ABSHP

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package

Learn More

Datasheet

1,608In Stock

6,000Expected 2026/10/14

Cut Tape

$1.40

$1.01

$0.914

$0.811

View

Reel

$0.658

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HVQFN-16

Interface - I/O Expanders Column Keypad Scanner & GPIO Port Expand

ADP5587ACPZ-R7
Analog Devices
1: $3.97
130In Stock
1,500Expected 2027/03/04

Mfr. Part No.
ADP5587ACPZ-R7

Mouser Part No
584-ADP5587ACPZ-R7

Analog Devices

Interface - I/O Expanders Column Keypad Scanner & GPIO Port Expand

Datasheet

130In Stock

1,500Expected 2027/03/04

Cut Tape

$3.97

$2.95

$2.70

$2.42

View

Reel

$2.13

MouseReel Available

Min.: 1
Mult.: 1
Max.: 1,637

: 1,500

I/O Expanders

I2C, Serial

SMD/SMT

LFCSP-24

Interface - Signal Buffers, Repeaters Hot Swappable 2-Wire Bus Bufs

LTC4300A-1CMS8#PBF
Analog Devices
1: $6.51
71In Stock
600Expected 2026/09/21

Mfr. Part No.
LTC4300A-1CMS8#PBF

Mouser Part No
584-C4300A-1CMS8PBF

Analog Devices

Interface - Signal Buffers, Repeaters Hot Swappable 2-Wire Bus Bufs

Datasheet

71In Stock

600Expected 2026/09/21

$6.51

$5.00

$4.44

$4.19

View

Min.: 1
Mult.: 1
Max.: 921

Signal Buffers, Repeaters

Buffers

Hot Swappable

2-Wire, I2C, SMBus

SMD/SMT

MSOP-8

Interface - Signal Buffers, Repeaters Hot Swappable 2-Wire Bus Bufs

LTC4300A-2IMS8#PBF
Analog Devices
1: $8.18
90In Stock
50Expected 2026/09/02

Mfr. Part No.
LTC4300A-2IMS8#PBF

Mouser Part No
584-C4300A-2IMS8PBF

Analog Devices

Interface - Signal Buffers, Repeaters Hot Swappable 2-Wire Bus Bufs

Datasheet

90In Stock

50Expected 2026/09/02

$8.18

$6.32

$5.84

$5.33

$4.93

Min.: 1
Mult.: 1
Max.: 310

Signal Buffers, Repeaters

Buffers

Hot Swappable

2-Wire, I2C, SMBus

SMD/SMT

MSOP-8

400 kHz Interface ICs

Types of Interface ICs

Customer Service Office

Company

Resources

Support

2-Wire Bus
4-Channel Linear Redriver
DisplayPort to HDMI Retimer
DP++ to HDMI Retimer
General Purpose
General Purpose Input/Output Expander
GPIO Expander
Hot Swappable
I/O Expander
I/O Expanders
I2C, SMBus
I2C and SMBus I/O Expander
I2C and SMBus I/O expander
I2C Bus
I2C-Bus/SMBus
I2C Bus Repeater
I2C Hub
Multi-Rate Retimer
PCIe
PCI Express 4.0

CSBGA-49
DFN-12
DFN-8
DSBGA-25
FCBGA-196
HVQFN-16
HVQFN-24
HVSON-8
HWQFN-24
HWSON-8
LFCSP-24
MSOP-12
MSOP-8
NFBGA-354
PDIP-8
QFN-20
QFN-24
QFN-28
QFN-46
QSOP-16