1FEATURES
? Low Standby Current Consumption of
1 mA Max
? I
2
C to Parallel Port Expander
? Open-Drain Active-Low Interrupt Output
? Operating Power-Supply Voltage Range of
2.3 V to 5.5 V
? 5-V Tolerant I/O Ports
? 400-kHz Fast I
2
C Bus
? Three Hardware Address Pins Allow up to
Eight Devices on the I
2
C/SMBus
? Allows Up to 16 Devices on the I
2
C/SMBus
When Used in Conjunction with the PCA9534A
See Table 1 for I
2
C Expander offerings
? Input/Output Configuration Register
? Polarity Inversion Register
? Internal Power-On Reset
? Power-Up With All Channels Configured as
Inputs
? No Glitch on Power Up
? Noise Filter on SCL/SDA Inputs
? Latched Outputs With High-Current Drive
Maximum Capability for Directly Driving LEDs
? Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
? ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)