Rainbow Electronics MAX4821 - Manual (Page 10)

MAX4820/MAX4821
+3.3V/+5V, 8-Channel, Cascadable Relay Drivers
with Serial/Parallel Interface
10 ______________________________________________________________________________________
MAX4820
OUT1
OUT2
V CC
RESET
PARALLEL
REGISTER
8-BIT
SHIFT
REGISTER
SET
DIN
DOUT
SCLK
CS
COM
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
PGND GND
MAX4821
OUT1
OUT2
V
CC
RESET
PARALLEL
LATCH
4-TO-8
DECODER
SET
LVL
A0
CS
COM
A2
A1
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
PGND GND
Functional Diagrams