PCA9502BS,128 NXP

PCA9502 2 8-bit I/O expander with I C-bus/SPI interface Rev. 4 23 February 2016 Product data sheet 1. General description 2 The PCA9502 is an 8-bit I/O expander with I C-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 2 Selectable I C-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 2.2 I C-bus features Noise filter on SCL/SDA inputs 400 kbit/s (maximum) 2 Compliant with I C-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 devicesPCA9502 NXP Semiconductors 2 8-bit I/O expander with I C-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 V DD PCA9502 RESET SCL 8 GPIO SDA GPIO 7:0 REGISTER A0 2 I C-BUS A1 IRQ 1 k (3.3 V) 1.5 k (2.5 V) V DD V DD I2C/SPI 002aab837 V SS 2 Fig 1. Block diagram of PCA9502 I C-bus interface V DD PCA9502 RESET SCLK 8 GPIO CS GPIO 7:0 REGISTER SO SPI SI IRQ 1 k (3.3 V) 1.5 k (2.5 V) V DD I2C/SPI 002aab838 V SS Fig 2. Block diagram of PCA9502 SPI interface PCA9502 All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet Rev. 4 23 February 2016 2 of 27