TCA6424A,pdf(Low-Voltage 24-Bi

1FEATURES
• Operating Power-Supply Voltage Range of
1.65 V to 5.5 V
• Allows Bidirectional Voltage-Level Translation
and GPIO Expansion Between:
– 1.8-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
– 2.5-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
– 3.3-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
– 5-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
• I
2
C to Parallel Port Expander
• Low Standby Current Consumption of 1 mA
• Schmitt-Trigger Action Allows Slow Input
Transition and Better Switching Noise
Immunity at the SCL and SDA Inputs
• 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)