MAX1608 Datasheet, PDF (6/16 Pages) Maxim Integrated Products – Octal SMBus-to-Parallel I/O Expanders

Octal SMBus-to-Parallel I/O Expanders
SMBCLK
SMBDATA
SMB
8
8
ADD0
ADD1
ALERT
ADDRESS
DECODER
7
ALERT
RESPONSE
REGISTER
R
FAULT S
LATCH
THERMAL
SHUTDOWN
Figure 1. Functional Diagram
COMMAND
DECODER
IO1
INPUT
8
REGISTER
IO2
NORMAL RISING
INTERRUPT
8
MASK REGISTER
IO7
8
SUSPEND RISING
INTERRUPT
MASK REGISTER
TRANSITION
DETECTORS
1
NORMAL FALLING
INTERRUPT
MASK REGISTER
1
SUSPEND FALLING
INTERRUPT
MASK REGISTER
NORMAL
OUTPUT
8
REGISTER
1
SUSPEND
8
OUTPUT
REGISTER
SMBSUS
6 _______________________________________________________________________________________