8-Bit I2C-Bus and SMBus I/O Port with Reset, PI4IOE5V9557 Replace PCA9557.
PI4IOE5V9557
PI4IOE5V9557.pdf
PI4IOE5V9557.pdfFEATURES
• Operation power supply voltage from 2.3V to 5.5V
• 8-bit P-C-bus GPIO with interrupt and reset
• 5V tolerant I/Os
• Polarity inversion register
• Active LOW Reset Pin
• Low current consumption
• OHz to 400KHz clock frequency
• Noise filter on SCL/SDA inputs
• Power-on reset
• ESD protection (4KV HBM and 1KV CDM)
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
PIN CONFIGUTION
优势替代
FEATURES
• Low standby current consumption of 1μA maximum
• I2C to parallel port expander
• Operating power-supply voltage range of 2.3V to
5.5V
• 5V Tolerant I/O ports
• 400kHz Fast I2C bus
• Three hardware address pins allow for use of up to
eight devices on I2C/SMBus
• Lower-voltage higher-performance migration path
for PCA9556
• Input and output configuration register
• Polarity inversion register
• Active-low reset input
• Internal power-on reset
• High-impedance open drain on P0
• Power up with all channels configured as inputs
• No glitch on power up
• Noise filter on SCL or SDA inputs
• Latched outputs with high current drive maximum
capability for directly driving LEDs
• Latch-up performance exceeds 100mA per JESD
78, class II
• ESD protection exceeds JESD 22
– 2000V Human-body model (A114-A)
– 200V Machine model (A115-A)
– 1000V Charged-device model (C101)
PIN CONFIGUTION
