8-bit I2C-Bus and SMBus I/O Port with Interrupt, PI4IOE5V9554 Replace CAT9554.
PI4IOE5V9554
PI4IOE5V9554.pdf
FEATURES
• Operation Power Supply Voltage from 2.3V to 5.5 V
• 8-bit I2
C-bus GPIO with Interrupt and Reset
C-bus GPIO with Interrupt and Reset
• 5V Tolerant I/Os
• Polarity Inversion Register
• Active LOW Interrupt Output
• Low Current Consumption
• 0Hz 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)
• For automotive applications requiring specific change
control
• Offered in Three Different Packages:
TSSOP-16 and TQFN 3x3-16
PIN CONFIGUTION

CROSS
FEATURES
• 400 kHz I2C Bus Compatible (Note 1)
• 2.3 V to 5.5 V Operation
• Low Stand−by Current
• 5 V Tolerant I/Os
• 8 I/O Pins that Default to Inputs at Power−up
• High Drive Capability
• Individual I/O Configuration
• Polarity Inversion Register
• Active Low Interrupt Output
• Internal Power−on Reset
• No Glitch on Power−up
• Noise Filter on SDA/SCL Inputs
• Cascadable up to 8 Devices
• Industrial Temperature Range
• 16−lead SOIC and TSSOP, and 16−pad TQFN (4 x 4 mm) Packages
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
PIN CONFIGUTION
