I/O Expanders,

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Manufacturer
- Silicon Labs
- Intel
- Broadcom Limited
- onsemi
- Kinetic Technologies
- Texas Instruments
- Lumissil Microsystems
- Ampleon USA Inc.
- Analog Devices Inc.
- Analog Devices Inc./Maxim Integrated
- Burr Brown
- ABLIC Inc.
- Cypress Semiconductor Corp
- Diodes Incorporated
- Fairchild Semiconductor
- Freescale Semiconductor
- Dallas Semiconductor
- Microchip Technology
- Renesas Electronics America Inc
- STMicroelectronics
- Harris Corporation
- Infineon Technologies
- Intersil
- Catalyst Semiconductor Inc.
- National Semiconductor
- NXP USA Inc.
- Rochester Electronics, LLC
- ISSI, Integrated Silicon Solution Inc
- Motorola
- MaxLinear, Inc.
- Nexperia USA Inc.
- NXP Semiconductors
- Nuvoton Technology Corporation
- Renesas
- SMSC
- Sanyo
- Semtech Corporation
- Skyworks Solutions Inc.
- SparkFun Electronics
- Smart Prototyping
Silicon Labs

Intel

Broadcom Limited

onsemi

Kinetic Technologies

Texas Instruments

Lumissil Microsystems

Ampleon USA Inc.

Analog Devices Inc.

Analog Devices Inc./Maxim Integrated

Burr Brown

ABLIC Inc.

Cypress Semiconductor Corp

Diodes Incorporated

Fairchild Semiconductor

Freescale Semiconductor

Dallas Semiconductor

Microchip Technology

Renesas Electronics America Inc

STMicroelectronics

Harris Corporation

Infineon Technologies

Intersil

Catalyst Semiconductor Inc.

National Semiconductor

NXP USA Inc.

Rochester Electronics, LLC

ISSI, Integrated Silicon Solution Inc

Motorola

MaxLinear, Inc.

Nexperia USA Inc.

NXP Semiconductors

Nuvoton Technology Corporation

Renesas

SMSC

Sanyo

Semtech Corporation

Skyworks Solutions Inc.

SparkFun Electronics

Smart Prototyping
Series
- -
- *
- Automotive, AEC-Q100
- Agile
- CAT9534
- CAT9554
- CAT9554A
- CAT9555
- MC1200
- SAS4xNN
- Xpander Logic™
-

*

Automotive, AEC-Q100

Agile

CAT9534

CAT9554

CAT9554A

CAT9555

MC1200

SAS4xNN

Xpander Logic™
Packaging
- Bag
- Bulk
- Cut Tape (CT)
- Digi-Reel®
- Tape & Reel (TR)
- Tray
- Tube
- Tape & Box (TB)
Bag

Bulk

Cut Tape (CT)

Digi-Reel®

Tape & Reel (TR)

Tray

Tube

Tape & Box (TB)
Product Status
- Active
- Discontinued at Digi-Key
- Last Time Buy
- Not For New Designs
- Obsolete
Active

Discontinued at Digi-Key

Last Time Buy

Not For New Designs

Obsolete
Interface
- -
- I²C
- I²C, 2-Wire Serial
- I²C, SMBus
- I²C, SPI
- I²C, Serial
- 1-Wire®
- 2-Wire Serial, SMBus
- 2-Wire
- 2-Wire, SMBus
- CAN (1-Wire)
- CAN V2.0b
- CMOS
- I²C, JTAG
- MIPI® RFFE
- SPI Serial
-

I²C

I²C, 2-Wire Serial

I²C, SMBus

I²C, SPI

I²C, Serial

1-Wire®

2-Wire Serial, SMBus

2-Wire

2-Wire, SMBus

CAN (1-Wire)

CAN V2.0b

CMOS

I²C, JTAG

MIPI® RFFE

SPI Serial
Voltage - Supply
- 1.2V ~ 3.6V
- 1.65V ~ 1.95V
- 1.2V ~ 5.5V
- 1.7V ~ 5.5V
- 1.65V ~ 3.6V
- 1.71V ~ 5.5V
- 1.1V ~ 3.6V
- 1.08V ~ 3.6V
- 1.425V ~ 3.6V
- 1.65V ~ 4V
- 1.65V ~ 5.5V
- 1.8V ~ 3.3V
- 1.1V ~ 5.5V, 1.65V ~ 5.5V
- 2.3V ~ 4.5V
- 2.5V ~ 3.6V
- 2.8V ~ 5.25V
- 4V ~ 10.5V
- 4V ~ 6.5V
- 4.2V ~ 6V
- 5.2V
1.2V ~ 3.6V

1.65V ~ 1.95V

1.2V ~ 5.5V

1.7V ~ 5.5V

1.65V ~ 3.6V

1.71V ~ 5.5V

1.1V ~ 3.6V

1.08V ~ 3.6V

1.425V ~ 3.6V

1.65V ~ 4V

1.65V ~ 5.5V

1.8V ~ 3.3V

1.1V ~ 5.5V, 1.65V ~ 5.5V

2.3V ~ 4.5V

2.5V ~ 3.6V

2.8V ~ 5.25V

4V ~ 10.5V

4V ~ 6.5V

4.2V ~ 6V

5.2V
Operating Temperature
- -40°C ~ 105°C
- -40°C ~ 125°C
- -55°C ~ 125°C
- -40°C ~ 85°C
- -25°C ~ 85°C
- 0°C ~ 70°C
- 0°C ~ 85°C
- -30°C ~ 70°C
- -
- -20°C ~ 85°C
- -30°C ~ 85°C
-40°C ~ 105°C

-40°C ~ 125°C

-55°C ~ 125°C

-40°C ~ 85°C

-25°C ~ 85°C

0°C ~ 70°C

0°C ~ 85°C

-30°C ~ 70°C

-

-20°C ~ 85°C

-30°C ~ 85°C
Mounting Type
- -
- Surface Mount
- Surface Mount, Wettable Flank
- Through Hole
-

Surface Mount

Surface Mount, Wettable Flank

Through Hole
Package / Case
- 8-SOIC (0.154", 3.90mm Width)
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 8-VFDFN Exposed Pad
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 8-XFDFN Exposed Pad
- 8-TFSOJ (0.069", 1.75mm Width)
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- 8-UFQFN Exposed Pad
- 8-XFBGA, DSBGA
- 8-XFQFN Exposed Pad
- 12-XFQFN
- 14-CFlatPack
- 16-UFBGA, WLBGA
- 16-WFBGA, DSBGA
- 16-XFBGA
- 16-XFLGA
- 20-TFSOP (0.173", 4.40mm Width)
- 24-SOP (0.236", 6.00mm Width)
- 24-TFSOP (0.173", 4.40mm Width)
- 24-UFBGA
- 24-XFBGA
- 25-TFBGA
- 25-VFBGA, WLBGA
- 35-VFBGA
- 36-SOP (0.311", 7.90mm Width)
- 36-VFBGA, WLBGA
- 42-VFBGA
- 46-WFQFN Exposed Pad
8-SOIC (0.154", 3.90mm Width)

8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

8-VFDFN Exposed Pad

10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

8-XFDFN Exposed Pad

8-TFSOJ (0.069", 1.75mm Width)

8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad

8-UFQFN Exposed Pad

8-XFBGA, DSBGA

8-XFQFN Exposed Pad

12-XFQFN

14-CFlatPack

16-UFBGA, WLBGA

16-WFBGA, DSBGA

16-XFBGA

16-XFLGA

20-TFSOP (0.173", 4.40mm Width)

24-SOP (0.236", 6.00mm Width)

24-TFSOP (0.173", 4.40mm Width)

24-UFBGA

24-XFBGA

25-TFBGA

25-VFBGA, WLBGA

35-VFBGA

36-SOP (0.311", 7.90mm Width)

36-VFBGA, WLBGA

42-VFBGA

46-WFQFN Exposed Pad
Supplier Device Package
- 8-SOIC
- 8-SO
- 8-TSSOP
- 8-MSOP
- 8-DSBGA (1.9x0.9)
- 8-HVSON (3x3)
- 8-MSOP-EP
- 8-SC70JW
- 8-UQFN (1.6x1.6)
- 8-VSSOP
- 8-X2SON (1.35x0.8)
- 8-XQFN (1.6x1.6)
- 12-XQFN (2x1.7)
- 16-DSBGA (2.5x2.12)
- 16-HVQFN (3x3)
- 16-HXQFNU (2x2)
- 16-QFN (2.6x1.8)
- 16-SOEIAJ
- 16-UCSP (2x2)
- 16-UQFN (1.8x2.6)
- 16-X2QFN (1.6x1.6)
- 16-XFBGA (1.6x1.6)
- 20-QFN-UT (3x3)
- 20-TVSOP
- 24-DHVQFN (5.5x3.5)
- 24-MFPSJ
- 24-TQFN-EP (3.5x3.5)
- 24-TQFN-EP (4x4)
- 24-TVSOP
- 24-UFBGA (2x2)
- 24-VFBGA (3x3)
- 24-X2QFN (2x2)
- 24-XFBGA (2x2)
- 25-FOWLP (2x2)
- 25-FlipChip (2x2)
- 25-TFBGA (3x3)
- 28-QFN-UT (4x4)
- 32-HUQFN (5x5)
- 32-UQFN (5x5)
- 36-FOWLP (2.6x2.6)
- 36-MFPSDJ
- 36-TFBGA (3.5x3.5)
- 36-VFBGA (2.6x2.6)
- 40-SQFN (6x6)
- 42-VFBGA (2.6x3)
- VBGA035W040
- W-QFN4565-46 (SWP)
- WLP-16A-C
8-SOIC

8-SO

8-TSSOP

8-MSOP

8-DSBGA (1.9x0.9)

8-HVSON (3x3)

8-MSOP-EP

8-SC70JW

8-UQFN (1.6x1.6)

8-VSSOP

8-X2SON (1.35x0.8)

8-XQFN (1.6x1.6)

12-XQFN (2x1.7)

16-DSBGA (2.5x2.12)

16-HVQFN (3x3)

16-HXQFNU (2x2)

16-QFN (2.6x1.8)

16-SOEIAJ

16-UCSP (2x2)

16-UQFN (1.8x2.6)

16-X2QFN (1.6x1.6)

16-XFBGA (1.6x1.6)

20-QFN-UT (3x3)

20-TVSOP

24-DHVQFN (5.5x3.5)

24-MFPSJ

24-TQFN-EP (3.5x3.5)

24-TQFN-EP (4x4)

24-TVSOP

24-UFBGA (2x2)

24-VFBGA (3x3)

24-X2QFN (2x2)

24-XFBGA (2x2)

25-FOWLP (2x2)

25-FlipChip (2x2)

25-TFBGA (3x3)

28-QFN-UT (4x4)

32-HUQFN (5x5)

32-UQFN (5x5)

36-FOWLP (2.6x2.6)

36-MFPSDJ

36-TFBGA (3.5x3.5)

36-VFBGA (2.6x2.6)

40-SQFN (6x6)

42-VFBGA (2.6x3)

VBGA035W040

W-QFN4565-46 (SWP)

WLP-16A-C
DigiKey Programmable
- Not Verified
- Verified
Not Verified

Verified
Features
- -
- ADC, DAC, Direct Bit Set/Reset
- ADC, EEPROM, POR, PWM
- Buzzer Outputs, LED Outputs, POR
- DAC
- DAC, POR
- Direct Bit Set/Reset
- EEPROM
- EEPROM, POR
- EEPROM, POR, PWM
- EEPROM, POR, PWM, WDT
- Fan Speed Controller
- Keypad Controller, LED Output, POR
- Keypad Controller, POR
- Keypad Controller, POR, PWM
- LED Output(s)
- LED Output(s), POR
- POR
- PWM
-

ADC, DAC, Direct Bit Set/Reset

ADC, EEPROM, POR, PWM

Buzzer Outputs, LED Outputs, POR

DAC

DAC, POR

Direct Bit Set/Reset

EEPROM

EEPROM, POR

EEPROM, POR, PWM

EEPROM, POR, PWM, WDT

Fan Speed Controller

Keypad Controller, LED Output, POR

Keypad Controller, POR

Keypad Controller, POR, PWM

LED Output(s)

LED Output(s), POR

POR

PWM
Output Type
- -
- CMOS, Open-Drain
- Open Collector, Open Drain, Push-Pull
- Open Drain
- Open Drain, Push-Pull
- Push-Pull
-

CMOS, Open-Drain

Open Collector, Open Drain, Push-Pull

Open Drain

Open Drain, Push-Pull

Push-Pull
Number of I/O
- 1
- 3
- 4
- 5
- 8 (Input Only)
- 8 (Output Only)
- 8
- 9
- 10
- 14
- 16 (8 Output Only)
- 16 (Input Only)
- 16
- 18
- 20
- 22
- 24
- 28
- 34
- 40
- 48
- 60
1

3

4

5

8 (Input Only)

8 (Output Only)

8

9

10

14

16 (8 Output Only)

16 (Input Only)

16

18

20

22

24

28

34

40

48

60
Interrupt Output
- No
- Yes
No

Yes
Current - Output Source/Sink
- 100µA, 25mA
- 160µA, 3mA
- 300µA, 25mA
- 300µA, 41mA
- 300µA, 42mA
- 300µA, 43mA
- 1mA, 25mA
- 1mA, 3mA
- 2.5mA
- 3mA
- 4mA
- 4.4mA, 6.1mA
- 4.5mA, 10mA
- 5mA, 6mA
- 6mA
- 7mA, 10mA
- 8mA, 15mA
- 8mA, 24mA
- 10mA
- 10mA, 10mA
- 10mA, 15mA
- 10mA, 20mA
- 10mA, 24mA
- 10mA, 25mA
- 12mA
- 15mA
- 16mA
- 18mA, 30mA
- 20mA
- 25mA
- 31mA, 43mA
- 42mA
- 42mA, 480µA
- 50mA
- 65mA
- 100mA
- 160mA
- -
100µA, 25mA

160µA, 3mA

300µA, 25mA

300µA, 41mA

300µA, 42mA

300µA, 43mA

1mA, 25mA

1mA, 3mA

2.5mA

3mA

4mA

4.4mA, 6.1mA

4.5mA, 10mA

5mA, 6mA

6mA

7mA, 10mA

8mA, 15mA

8mA, 24mA

10mA

10mA, 10mA

10mA, 15mA

10mA, 20mA

10mA, 24mA

10mA, 25mA

12mA

15mA

16mA

18mA, 30mA

20mA

25mA

31mA, 43mA

42mA

42mA, 480µA

50mA

65mA

100mA

160mA

-
Clock Frequency
- 100 kHz
- 400 kHz
- 1 MHz
- 1.7 MHz
- 3.4 MHz
- 4 MHz
- 5 MHz
- 8 MHz
- 10 MHz
- 20 MHz
- 25 MHz
- 26 MHz
100 kHz

400 kHz

1 MHz

1.7 MHz

3.4 MHz

4 MHz

5 MHz

8 MHz

10 MHz

20 MHz

25 MHz

26 MHz

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1217 Results

Product	Series	Packaging	Product Status	Interface	Voltage - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	DigiKey Programmable	Features	Output Type	Number of I/O	Interrupt Output	Current - Output Source/Sink	Clock Frequency
PCA9555DBQR Texas Instruments	-	Cut Tape (CT),Tape & Reel (TR)	Last Time Buy	I²C, SMBus	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-SSOP	Not Verified	POR	Push-Pull	16	Yes	10mA, 25mA	400 kHz
PCA9703PW,118 NXP USA Inc.	-	Cut Tape (CT),Tape & Reel (TR)	Active	SPI Serial	4.5V ~ 5.5V	-	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP	Not Verified	-	Push-Pull	16 (Input Only)	Yes	-	5 MHz
PCA9535CPW,118 NXP USA Inc.	-	Cut Tape (CT),Tape & Reel (TR)	Active	I²C, SMBus	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP	Not Verified	POR	Open Drain	16	Yes	10mA, 25mA	400 kHz
PCA9535CHF,118 NXP USA Inc.	-	Cut Tape (CT),Tape & Reel (TR)	Active	I²C, SMBus	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-HWQFN (4x4)	Not Verified	POR	Open Drain	16	Yes	10mA, 25mA	400 kHz
PCA9554DBR Texas Instruments	-	Cut Tape (CT),Tape & Reel (TR)	Last Time Buy	I²C, SMBus	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.209", 5.30mm Width)	16-SSOP	Not Verified	POR	Push-Pull	8	Yes	10mA, 25mA	400 kHz
PCA9554DGVR Texas Instruments	-	Cut Tape (CT),Tape & Reel (TR)	Last Time Buy	I²C, SMBus	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TFSOP (0.173", 4.40mm Width)	16-TVSOP	Not Verified	POR	Push-Pull	8	Yes	10mA, 25mA	400 kHz
PCA9575HF,118 NXP USA Inc.	-	Cut Tape (CT),Tape & Reel (TR)	Active	I²C, SMBus	1.1V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-HWQFN (4x4)	Not Verified	POR	Push-Pull	16	Yes	1mA, 3mA	400 kHz
PCA8575BS,118 NXP USA Inc.	-	Cut Tape (CT),Tape & Reel (TR)	Active	I²C	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-HVQFN (4x4)	Not Verified	POR	Push-Pull	16	Yes	100µA, 25mA	400 kHz
PI4IOE5V96248ZLEX Diodes Incorporated	-	Cut Tape (CT),Tape & Reel (TR)	Active	I²C	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	56-WFQFN Exposed Pad	56-TQFN (7x7)	Not Verified	-	Push-Pull	48	Yes	42mA, 480µA	1 MHz
PCF8575RGER Texas Instruments	-	Cut Tape (CT),Tape & Reel (TR)	Active	I²C, SMBus	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-VQFN (4x4)	Not Verified	POR	Push-Pull	16	Yes	1mA, 25mA	400 kHz

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