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PCA9502

NXP Semiconductors
Part Number PCA9502
Manufacturer NXP Semiconductors
Description 8-bit I/O expander
Published May 14, 2010
Detailed Description PCA9502 8-bit I/O expander with I2C-bus/SPI interface Rev. 4 — 23 February 2016 Product data sheet 1. General descri...
Datasheet PDF File PCA9502 PDF File

PCA9502
PCA9502

Overview
PCA9502 8-bit I/O expander with I2C-bus/SPI interface Rev.
4 — 23 February 2016 Product data sheet 1.
General description 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.
2.
Features and benefits 2.
1 General features  Selectable I2C-bus or SPI interface  3.
3 V or 2.
5 V operation  Industrial temperature range: 40 C to +85 C  Eight programmable I/O pins  Software reset  Industrial and commercial temperature ranges  Available in HVQFN24 package  16 hardware-selectable slave addresses 2.
2 I2C-bus features  Noise filter on SCL/SDA inputs  400 kbit/s (maximum)  Compliant with I2C-bus Fast-mode  Slave mode only 2.
3 SPI features  15 Mbit/s maximum speed  Slave mode only  SPI Mode 0 3.
Applications  Factory automation and process control  Portable and battery operated devices  Cellular data devices NXP Semiconductors PCA9502 8-bit I/O expander with I2C-bus/SPI interface 4.
Ordering information Table 1.
Ordering information Type number Package Name Description Version PCA9502BS HVQFN24 plastic thermal enhanced very thin quad flat package; SOT616-3 no leads; 24 terminals; body 4  4  0.
85 mm 5.
Block diagram VDD RESET SCL SDA A0 A1 IRQ 1 kΩ (3.
3 V) 1.
5 kΩ (2.
5 V) PCA9502 I2C-BUS VDD VDD I2C/SPI GPIO REGISTER VSS 002aab837 Fig 1.
Block diagram of PCA9502 I2C-bus interface 8 GPIO[7:0] VDD RESET SCLK CS SO SI IRQ 1 kΩ (3.
3 V) 1.
5 kΩ (2.
5 V) VDD PCA9502 SPI I2C/SPI GPIO REGISTER VSS 002aab838 Fig 2.
Block diagram of PCA9502 SPI interface 8 GPIO[7:0] PCA9502 Product data sheet All information provided in this document is subject to legal disclaimers.
Rev.
4 — 23 February 2016 © NXP Semiconductors N.
V.
2016.
All rights reserved.
2 of 27 NXP S...


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