8-Bit I/O Expander with I2C-Bus/SPI Interface | NXP Semiconductors

Automotive

Industrial

Consumer

Technologies

8-Bit I/O Expander with I2C-Bus/SPI Interface

PCA9502BS Active

The PCA9502 is an 8-bit I/O expander with I²C-bus/SPI host interface. The device comes in a very small HVQFN24 package, which makes it ideally suitable for hand-held, battery operated applications.

The device also supports software reset, which allows the host to reset the device at any time, independent of the hardware reset signal.

See product image

Block Diagram

PCA9502 Block Diagram

PCA9502 Block Diagram
Get diagram PDF

Features

General Features

  • Selectable I²C-bus or SPI interface
  • 3.3 V or 2.5 V operation
  • Industrial temperature range: -40 Cel to +85 Cel
  • Eight programmable I/O pins
  • Software reset
  • Industrial and commercial temperature ranges
  • Available in HVQFN24 package
  • 16 hardware-selectable follower addresses
  • Factory automation and process control
  • Portable and battery operated devices
  • Cellular data devices

I²C-Bus Features

  • Noise filter on SCL/SDA inputs
  • 400 kbit/s (maximum)
  • Compliant with I²C-bus Fast-mode
  • Follower mode only

SPI Features

  • 15 Mbit/s maximum speed
  • Follower mode only
  • SPI Mode 0

Buy/Parametrics

1 result

Include 0 NRND

Part

Show description

Order

CAD Model

No of bits

VDD [min]

VDD [max]

Over volt tolerant

No of supplies

Max Sink Current per bit (mA)

Max Sink Current, per package (mA)

Source Current per bit (mA)

Interrupt output pin

Reset input pin

Output mode

I2C-bus (kHz)

Footprint body and leads

Package Type

Operating Temperature (°C)

No of Addresses

Remark

PCA9502BS
Data Sheet

8

2.5

3.6

Y

1

4

32

4

Y

Y

Totem pole

400

16.81

HVQFN24

-40~85

16

I2C/SPI interface; I/O and interrupt latch

N true 0 PSPPCA9502BSen 10 Application Note Application Note t789 2 Brochure Brochure t518 2 Data Sheet Data Sheet t520 1 Package Information Package Information t790 1 Packing Information Packing Information t935 1 User Guide User Guide t792 3 en_US en_US en Data Sheet Data Sheet 1 1 4.0 English 1442063587978719347508 PSP 268.3 KB None None documents None 1442063587978719347508 /docs/en/data-sheet/PCA9502.pdf 268327 /docs/en/data-sheet/PCA9502.pdf PCA9502 documents N N 2016-02-24 8-bit I/O expander with I2C-bus/SPI interface /docs/en/data-sheet/PCA9502.pdf /docs/en/data-sheet/PCA9502.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en Feb 23, 2016 980000996212993340 Data Sheet Y N 8-bit I/O expander with I2C-bus/SPI interface Application Note Application Note 2 2 1.0 English 1442088353543707144903 PSP 92.3 KB Registration without Disclaimer None documents Extended 1442088353543707144903 /secured/assets/documents/en/application-note/AN256.pdf 92326 /secured/assets/documents/en/application-note/AN256.pdf AN256 documents Y N 2016-07-11 AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus /webapp/Download?colCode=AN256 /secured/assets/documents/en/application-note/AN256.pdf Application Note N 645036621402383989 2024-10-21 pdf Y en Mar 23, 2009 645036621402383989 Application Note Y N AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus 3 1.0 English 1442089357770718410360 PSP 33.9 KB None None documents None 1442089357770718410360 /docs/en/application-note/AN10485.pdf 33927 /docs/en/application-note/AN10485.pdf AN10485 documents N N 2011-06-30 AN10485 /docs/en/application-note/AN10485.pdf /docs/en/application-note/AN10485.pdf Application Note N 645036621402383989 2023-10-17 pdf N en Jun 2, 2006 645036621402383989 Application Note Y N AN10485 User Guide User Guide 3 4 6.0 Japanese 1442125286808710770774ja PSP 751.0 KB None None documents None 1442125286808710770774 /docs/ja/user-guide/UM10204.pdf 750958 /docs/ja/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/ja/user-guide/UM10204.pdf /docs/ja/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 ja Apr 28, 2014 132339537837198660 User Guide Y N I2C-bus specification and user manual 7.0 English NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. 1442125286808710770774 PSP 751.0 KB None None documents None 1442125286808710770774 /docs/en/user-guide/UM10204.pdf 750958 /docs/en/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf /docs/en/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 pdf N en Oct 1, 2021 132339537837198660 User Guide Y N I2C-bus specification and user manual 5 1.0 English The OM6281 is an add-on to NXP’s I2C 2005-1 demo board. This daughter board makes it easy to test and design with the PCA9698, a Fast-mode Plus (Fm+) 40-bit GPIO device. These boards, along with the I2CUSB Lite GUI (PC based), provide an easy to use evaluation platform. 1442125772780702560029 PSP 571.7 KB None None documents None 1442125772780702560029 /docs/en/user-guide/UM10267.pdf 571684 /docs/en/user-guide/UM10267.pdf UM10267 documents N N 2017-02-14 PCA9698 demonstration board OM6281 /docs/en/user-guide/UM10267.pdf /docs/en/user-guide/UM10267.pdf User Guide N 132339537837198660 2024-10-21 pdf N en Sep 25, 2008 132339537837198660 User Guide Y N PCA9698 demonstration board OM6281 6 1.0 English The I2C Demonstration Board 2005-1 is a new expandable low cost I2C based platform that allows Field Application Engineers, designers and educators to use their Personal Computer (PC) to easily test and demonstrate I2C-bus devices from Philips Semiconductors in a platform similar to a real system environment. 1442125267076701864849 PSP 267.7 KB Registration without Disclaimer None documents Extended 1442125267076701864849 /secured/assets/documents/en/user-guide/UM10206.pdf 267686 /secured/assets/documents/en/user-guide/UM10206.pdf UM10206 documents Y N 2016-07-12 I2C Demonstration Board 2005-1 Quick Start Guide /webapp/Download?colCode=UM10206 /secured/assets/documents/en/user-guide/UM10206.pdf User Guide N 132339537837198660 2024-07-12 pdf Y en Jun 13, 2006 132339537837198660 User Guide Y N I2C Demonstration Board 2005-1 Quick Start Guide Brochure Brochure 2 7 1.0 English 1442048542291707237639 PSP 3.6 MB None None documents None 1442048542291707237639 /docs/en/brochure/75017540.pdf 3625610 /docs/en/brochure/75017540.pdf 75017540 documents N N 2016-07-12 NXP I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns /docs/en/brochure/75017540.pdf /docs/en/brochure/75017540.pdf Brochure N 712453003803778552 2024-10-24 pdf N en Apr 8, 2018 712453003803778552 Brochure Y N NXP I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns 8 1.0 English 1442124656944726362331 PSP 1.1 MB None None documents None 1442124656944726362331 /docs/en/brochure/75016543.pdf 1091243 /docs/en/brochure/75016543.pdf 75016543 documents N N 2016-10-08 Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances /docs/en/brochure/75016543.pdf /docs/en/brochure/75016543.pdf Brochure N 712453003803778552 2024-11-28 pdf N en Apr 8, 2018 712453003803778552 Brochure Y N Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances Package Information Package Information 1 9 1.1 English 1455078861497728270748 PSP 222.6 KB None None documents None 1455078861497728270748 /docs/en/package-information/SOT616-3.pdf 222612 /docs/en/package-information/SOT616-3.pdf SOT616-3 documents N N 2016-03-04 plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT616-3.pdf /docs/en/package-information/SOT616-3.pdf Package Information N 302435339416912908 2024-10-24 pdf N en Mar 4, 2016 302435339416912908 Package Information Y N plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm Packing Information Packing Information 1 10 1 English 1442131332374709597015 PSP 100.6 KB None None documents None 1442131332374709597015 /docs/en/packing/SOT616-3_128.pdf 100577 /docs/en/packing/SOT616-3_128.pdf SOT616-3_128 documents N N 2014-03-26 HVQFN24; Reel pack; SMD, 13"Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 /docs/en/packing/SOT616-3_128.pdf /docs/en/packing/SOT616-3_128.pdf Packing Information N 145666923842250347 2024-10-24 pdf N en Feb 21, 2018 145666923842250347 Packing Information Y N HVQFN24; Reel pack; SMD, 13"Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 false 0 PCA9502BS downloads en true 1 Y PSP Y Y Application Note 2 /secured/assets/documents/en/application-note/AN256.pdf 2016-07-11 1442088353543707144903 PSP 2 Mar 23, 2009 Application Note Registration without Disclaimer /secured/assets/documents/en/application-note/AN256.pdf English documents 92326 None 645036621402383989 2024-10-21 Y /webapp/Download?colCode=AN256 AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus /secured/assets/documents/en/application-note/AN256.pdf documents 645036621402383989 Application Note N en Extended Y pdf 1.0 Y N AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus 92.3 KB AN256 N 1442088353543707144903 /docs/en/application-note/AN10485.pdf 2011-06-30 1442089357770718410360 PSP 3 Jun 2, 2006 Application Note None /docs/en/application-note/AN10485.pdf English documents 33927 None 645036621402383989 2023-10-17 N /docs/en/application-note/AN10485.pdf AN10485 /docs/en/application-note/AN10485.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN10485 33.9 KB AN10485 N 1442089357770718410360 Brochure 2 /docs/en/brochure/75017540.pdf 2016-07-12 1442048542291707237639 PSP 7 Apr 8, 2018 Brochure None /docs/en/brochure/75017540.pdf English documents 3625610 None 712453003803778552 2024-10-24 N /docs/en/brochure/75017540.pdf NXP I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns /docs/en/brochure/75017540.pdf documents 712453003803778552 Brochure N en None Y pdf 1.0 N N NXP I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns 3.6 MB 75017540 N 1442048542291707237639 /docs/en/brochure/75016543.pdf 2016-10-08 1442124656944726362331 PSP 8 Apr 8, 2018 Brochure None /docs/en/brochure/75016543.pdf English documents 1091243 None 712453003803778552 2024-11-28 N /docs/en/brochure/75016543.pdf Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances /docs/en/brochure/75016543.pdf documents 712453003803778552 Brochure N en None Y pdf 1.0 N N Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances 1.1 MB 75016543 N 1442124656944726362331 Data Sheet 1 /docs/en/data-sheet/PCA9502.pdf 2016-02-24 1442063587978719347508 PSP 1 Feb 23, 2016 Data Sheet None /docs/en/data-sheet/PCA9502.pdf English documents 268327 None 980000996212993340 2022-12-07 N /docs/en/data-sheet/PCA9502.pdf 8-bit I/O expander with I2C-bus/SPI interface /docs/en/data-sheet/PCA9502.pdf documents 980000996212993340 Data Sheet N en None Y pdf 4.0 N N 8-bit I/O expander with I2C-bus/SPI interface 268.3 KB PCA9502 N 1442063587978719347508 Package Information 1 /docs/en/package-information/SOT616-3.pdf 2016-03-04 1455078861497728270748 PSP 9 Mar 4, 2016 Package Information None /docs/en/package-information/SOT616-3.pdf English documents 222612 None 302435339416912908 2024-10-24 N /docs/en/package-information/SOT616-3.pdf plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT616-3.pdf documents 302435339416912908 Package Information N en None Y pdf 1.1 N N plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm 222.6 KB SOT616-3 N 1455078861497728270748 Packing Information 1 /docs/en/packing/SOT616-3_128.pdf 2014-03-26 1442131332374709597015 PSP 10 Feb 21, 2018 Packing Information None /docs/en/packing/SOT616-3_128.pdf English documents 100577 None 145666923842250347 2024-10-24 N /docs/en/packing/SOT616-3_128.pdf HVQFN24; Reel pack; SMD, 13"Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 /docs/en/packing/SOT616-3_128.pdf documents 145666923842250347 Packing Information N en None Y pdf 1 N N HVQFN24; Reel pack; SMD, 13"Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 100.6 KB SOT616-3_128 N 1442131332374709597015 User Guide 3 /docs/en/user-guide/UM10204.pdf 2016-07-12 1442125286808710770774 PSP 4 Oct 1, 2021 User Guide NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. None /docs/en/user-guide/UM10204.pdf English documents 750958 None 132339537837198660 2024-10-24 N /docs/en/user-guide/UM10204.pdf I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf documents 132339537837198660 User Guide N en None Y pdf 7.0 N N I2C-bus specification and user manual 751.0 KB UM10204 N 1442125286808710770774 /docs/en/user-guide/UM10267.pdf 2017-02-14 1442125772780702560029 PSP 5 Sep 25, 2008 User Guide The OM6281 is an add-on to NXP’s I2C 2005-1 demo board. This daughter board makes it easy to test and design with the PCA9698, a Fast-mode Plus (Fm+) 40-bit GPIO device. These boards, along with the I2CUSB Lite GUI (PC based), provide an easy to use evaluation platform. None /docs/en/user-guide/UM10267.pdf English documents 571684 None 132339537837198660 2024-10-21 N /docs/en/user-guide/UM10267.pdf PCA9698 demonstration board OM6281 /docs/en/user-guide/UM10267.pdf documents 132339537837198660 User Guide N en None Y pdf 1.0 N N PCA9698 demonstration board OM6281 571.7 KB UM10267 N 1442125772780702560029 /secured/assets/documents/en/user-guide/UM10206.pdf 2016-07-12 1442125267076701864849 PSP 6 Jun 13, 2006 User Guide The I2C Demonstration Board 2005-1 is a new expandable low cost I2C based platform that allows Field Application Engineers, designers and educators to use their Personal Computer (PC) to easily test and demonstrate I2C-bus devices from Philips Semiconductors in a platform similar to a real system environment. Registration without Disclaimer /secured/assets/documents/en/user-guide/UM10206.pdf English documents 267686 None 132339537837198660 2024-07-12 Y /webapp/Download?colCode=UM10206 I2C Demonstration Board 2005-1 Quick Start Guide /secured/assets/documents/en/user-guide/UM10206.pdf documents 132339537837198660 User Guide N en Extended Y pdf 1.0 Y N I2C Demonstration Board 2005-1 Quick Start Guide 267.7 KB UM10206 N 1442125267076701864849 true Y Products

Documentation

Quick reference to our documentation types.

Filters

10 documents

Compact List

Application Note (2)
Brochure (2)
Data Sheet (1)
Package Information (1)
Packing Information (1)
User Guide (3)

Design Files

Quick reference to our design files types.
Filters

1 design file

Engineering Services

1 engineering service

To find additional partner offerings that support this product, visit our Partner Marketplace.

Support

What do you need help with?

Search