TCA6408PW

Расширитель I/O, 8бит, 400 кГц, I2C, SMBus, 1.65 В, 5.5 В, TSSOP.

The TCA6408PW is an 8-bit I/O Expander for the two-line bidirectional bus (I?C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I?C interface [serial clock (SCL) and serial data (SDA)]. The major benefit of this device is its wide VCC range. It can operate from 1.65 to 5.5V on the P-port side and on the SDA/SCL side. This allows the TCA6408 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components such as LEDs remain at a 5V power supply. It consists of one 8-bit Configuration (input or output selection), input, output and polarity inversion (active high) register. At power on, the I/Os are configured as inputs. However, the system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits.