PCA9670PW,118

PCA9670PW,118 is a remote 8-bit I/O expander for Fm+ I²C-bus with reset. It provides general-purpose remote I/O expansion via the two-wire bidirectional I²C-bus, serial data. The device consists of eight quasi-bidirectional ports, 1MHz 30mA drive I²C-bus interface, three hardware address inputs, and a reset input operating between 2.3V and 5.5V. 1MHz I²C-bus Fast-mode Plus (Fm+) can support PWM dimming of LEDs, and a higher I²C-bus drive of 30mA allows more devices to be on the bus without the need for bus buffers. The quasi-bidirectional port can be independently assigned as an input to monitor interrupt status or keypads, or as an output to activate indicator devices such as LEDs. The system can read from the input port or write to the output port through a single register. The application includes LED signs and displays, servers, keypads, industrial control, medical equipment, PLCs, cellular telephones, mobile devices, gaming machines, instrumentation, and test measurement.

• I²C-bus to parallel port expander, 1MHz I²C-bus interface (Fast-mode Plus I²C-bus)
• SDA with 30mA sink capability for 4000pF buses
• 8-bit remote I/O pins that default to inputs at power-up, total package sink capability of 200mA
• Latched outputs with 25mA sink capability for directly driving LEDs
• Active LOW reset input, sixty-four programmable server addresses using three address pins
• Readable device ID (manufacturer, device type, and revision), software reset
• ESD protection exceeds 2000V HBM per JESD22-A114 and 1000V CDM per JESD22-C101
• Latch-up testing is done to JEDEC standard JESD78 which exceeds 100mA
• Supply voltage range from 2.3 to 5.5V (VSS = 0V, Tamb = -40°C to +85°C)
• TSSOP16 package, ambient temperature range from -40°C to +85°C