PCA9557 expander equivalent, remote 8-bit i2c and smbus low-power i/o expander.
*1 Low Standby Current Consumption of 1 μA Max
* I2C to Parallel Port Expander
* Operating Power-Supply Voltage Range of 2.3 V
to 5.5 V
* 5-V Tolerant I/O.
intellectual property matters and other important disclaimers. PRODUCTION DATA.
PCA9557
SCPS133J
– DEC.
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation. The device provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and se.
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