Description
This device (XL9535/XL9555) is a 24-pin CMOS IC that provides 16-bit of General Purpose parallel Input/Output (GPIO) expansion for most micro-controller families via the I2C-bus/SMBus interface [serial clock line (SCL), serial data line (SDA)].
Features
- l I2C-bus to 16-bit GPIO expander l Operating power supply voltage range of
2.3-V to 5.5-V l Low standby current consumption l 5 V tolerant I/O ports l 400 kHz fast-mode I2C-bus clock
frequency l Noise filter on SCL/SDA inputs l Internal power-on reset l No glitch on power-up
l Polarity Inversion register l Address by 3 hardware address pins for
use of up to 8 devices l Open-drain active LOW interrupt output l 16 I/O pins which default to 16 inputs l Latch-up testing exceeds 100 mA per JESD
78.
XL9555 Datasheet
