MM74C908 MM74C918 Dual CMOS 30V Relay Driver
November 1990
MM74C908 MM74C918 Dual CMOS 30V Relay Driver
General Description
The MM74C908 and MM74C918 are general purpose dual
high voltage drivers each capable of sourcing a minimum of
250 mA at V
OUT
e
V
CC
b
3V and T
J
e
65 C
The MM74C908 and MM74C918 consist of two CMOS
NAND gates driving an emitter follower Darlington output to
achieve high current drive and high voltage capabilities In
the 鈥樷€極FF鈥欌€?state the outputs can withstand a maximum of
b
30V across the device These CMOS drivers are useful in
interfacing normal CMOS voltage levels to driving relays
regulators lamps etc
Features
Y
Y
Y
Y
Y
Wide supply voltage range
High noise immunity
Low output 鈥樷€極N鈥欌€?resistance
High voltage
High current
3V to 18V
0 45 V
CC
(typ )
8X (typ )
b
30V
250 mA
Connection Diagrams
Dual-In-Line Package
MM74C908
Order Number MM74C908
TL F 5912 鈥?1
Top View
Dual-In-Line Package
MM74C918
Order Number MM74C918
TL F 5912 鈥?2
Top View
TRI-STATE is a registered trademark of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 5912
RRD-B30M105 Printed in U S A