NXP | PCA9501BS,118

The PCA9501BS,118 is a 8-bit I/O expander with an on-board 2-kbit EEPROM. The I/O expandable eight quasi-bidirectional data pins can be independently assigned as inputs or outputs to monitor board level status or activate indicator devices.

Features:

• 8 general purpose input/output expander/collector
• Replacement for PCF8574 with integrated 2-kbit EEPROM
• Internal 256 ´ 8 EEPROM
• Self timed write cycle (5 ms typical)
• 16 byte page write operation
• I2C-bus and SMBus interface logic
• Internal power-on reset
• Noise filter on SCL/SDA inputs
• Active LOW interrupt output
• 6 address pins allowing up to 64 devices on the I2C-bus/SMBus
• No glitch on power-up
• Supports hot insertion
• Power-up with all channels configured as inputs
• Low standby current
• Operating power supply voltage range of 2.5 V to 3.6 V
• 5 V tolerant inputs/outputs
• 0 Hz to 400 kHz clock frequency

Applications:

• Industrial
• Automotive