NXP Semiconductors PCA9502
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.| Part No. | PCA9502 |
|---|---|
| Datasheet | PCA9502 Download |
| Manufacturer |  NXP Semiconductors |
| Description | 8-bit I/O expander |
| Buy | Stock & Price |
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.
