Low-voltage 8-bit I2C-bus and SMBus low power I/O port with interrupt, weak pull-up

General description The PCA9554B and PCA9554C are low-voltage 8-bit General Purpose Input/Output (GPIO) expanders with interrupt for I2C-bus/SMBus applications. The only difference between the PCA9554B and PCA9554C is their I2C fixed address allowing a larger number of the same device on the I2C-

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恩XP

Low-voltage 8-bit I2C-bus and SMBus low power I/O port with interrupt, weak pull-up

The PCA9554B and PCA9554C are low-voltage 8-bit General Purpose Input/Output(GPIO) expanders with interrupt for I2C-bus/SMBus applications. The only differencebetween the PCA9554B and PCA9554C is their I2C fixed address allowing a largernumber of the same device on the I2C-bus with no chance of addr I2 C-bus to parallel port expander\nOperating power supply voltage range of 1.65 V to 5.5 V\nLow standby current consumption:1.5 μA (typical at 5 V VDD)\n1.0 μA (typical at 3.3 V VDD)\nSchmitt-trigger action allows slow input transition and better switching noise immunityat the SCL and SDA inputs:Vh;

恩XP

8-bit I2C and SMBus I/O port with interrupt

DESCRIPTION The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and were developed to enhance the Philips family of I C I/O expanders. The improvements include higher drive capability, 5V I/O t

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