PCAL6416AEX1Z

PCAL6416AEX1Z is a low-voltage translating 16-bit I²C-bus/SMBus I/O expander with interrupt output, reset, and configuration registers. It provides remote I/O expansion for most microcontroller families via the I²C-bus interface. It provides a simple solution when additional I/O is needed while keeping interconnections to a minimum, for example, in battery-powered mobile applications for interfacing to sensors, push buttons, keypad, etc. In addition to providing a flexible set of GPIOs, it simplifies interconnection of a processor running at one voltage level to I/O devices operating at a different voltage level. It has built-in level shifting feature that makes this device extremely flexible in mixed signal environments where communication between incompatible I/O voltages is required.

• Operating power supply voltage range from 1.65V to 5.5V
• 5V tolerant I/O ports, active LOW reset input (RESET, active low)
• Open-drain active LOW interrupt output (INT, active low)
• 400KHz fast-mode I²C-bus, 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 25mA drive maximum capability for directly driving LEDs
• Latch-up performance exceeds 100mA per JESD 78, Class II
• 2000V human-body model (A114-A), 1000V charged-device model (C101)
• X2QFN24 package, temperature range from -40°C to +85°C