CAT9555WI datasheet(6/17 Pages) ONSEMI

Part #	CAT9555WI

Description	16-bit I짼C and SMBus I/O Port with Interrupt

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CAT9555

Doc. No. MD-9003 Rev. I

6

Characteristics subject to change without notice

A.C. TEST CONDITIONS

Input Rise and Fall time

≤ 10ns

CMOS Input Voltages

0.2VCC to 0.8VCC

CMOS Input Reference Voltages

0.3VCC to 0.7VCC

Output Reference Voltages

0.5VCC

Output Load: SDA, INT

¯¯¯

Current Source IOL = 3mA; CL = 100pF

Output Load: I/Os

Current Source: IOL/IOH = 10mA; CL = 50pF

Figure 1. I²C Serial Interface Timing

tHIGH

SCL

SDA IN

SDA OUT

tLOW

tF

tLOW

tR

tBUF

tSU:STO

tSU:DAT

tHD:DAT

tHD:STA

tSU:STA

tAA

tDH

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