MM74C908 查看數據表（PDF） - Fairchild Semiconductor
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MM74C908 Datasheet PDF : 5 Pages
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October 1987
Revised January 1999
MM74C908
Dual CMOS 30-Volt Relay Driver
General Description
The MM74C908 is a general purpose dual high voltage
driver capable of sourcing a minimum of 250 mA at VOUT =
VCC − 3V, and TJ = 65°C.
The MM74C908 consists of two CMOS NAND gates driv-
ing an emitter follower Darlington output to achieve high
current drive and high voltage capabilities. In the “OFF”
state the outputs can withstand a maximum of −30V across
the device. These CMOS drivers are useful in interfacing
normal CMOS voltage levels to driving relays, regulators,
lamps, etc.
Features
s Wide supply voltage range: 3V to 18V
s High noise immunity: 0.45 VCC (typ.)
s Low output “ON” resistance: 8Ω (typ.)
s High voltage: −30V
s High current: 250 mA
Ordering Code:
Order Number Package Number
Package Description
MM74C908N
N08E
8-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Connection Diagram
Pin Assignments for DIP
Top View
© 1999 Fairchild Semiconductor Corporation DS005912.prf
www.fairchildsemi.com
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