PCA9502BS NXP

PCA9502 2 8-bit I/O expander with I C-bus/SPI interface Rev. 03 13 October 2006 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 2.1 General features 2 n Selectable I C-bus or SPI interface n 3.3 V or 2.5 V operation n Industrial temperature range: - 40 C to +85 C n Eight programmable I/O pins n Software reset n Industrial and commercial temperature ranges n Available in HVQFN24 package n 16 hardware-selectable slave addresses 2 2.2 I C-bus features n Noise lter on SCL/SDA inputs n 400 kbit/s (maximum) 2 n Compliant with I C-bus Fast-mode n Slave mode only 2.3 SPI features n 15 Mbit/s maximum speed n Slave mode only n SPI Mode 0 3. Applications n Factory automation and process control n Portable and battery operated devices n 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 at 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 kW (3.3 V) 1.5 kW (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 kW (3.3 V) 1.5 kW (2.5 V) V DD I2C/SPI 002aab838 V SS Fig 2. Block diagram of PCA9502 SPI interface PCA9502 3 NXP B.V. 2006. All rights reserved. Product data sheet Rev. 03 13 October 2006 2 of 25