MM78C29 MM88C29 Quad Single-Ended Line Driver
MM78C30 MM88C30 Dual Differential Line Driver
February 1996
MM78C29 MM88C29 Quad Single-Ended Line Driver
MM78C30 MM88C30 Dual Differential Line Driver
General Description
The MM78C30 MM88C30 is a dual differential line driver
that also performs the dual four-input NAND or dual four-in-
put AND function The absence of a clamp diode to V
CC
in
the input protection circuitry of the MM78C30 MM88C30 al-
lows a CMOS user to interface systems operating at differ-
ent voltage levels Thus a CMOS digital signal source can
operate at a V
CC
voltage greater than the V
CC
voltage of
the MM78C30 line driver The differential output of the
MM78C30 MM88C30 eliminates ground-loop errors
The MM78C29 MM88C29 is a non-inverting single-wire
transmission line driver Since the output ON resistance is a
low 20X typ the device can be used to drive lamps relays
solenoids and clock lines besides driving data lines
Features
Y
Y
Y
Wide supply voltage range
High noise immunity
Low output ON resistance
3V to 15V
0 45 V
CC
(typ )
20X (typ )
Logic Diagrams
1 4 MM78C29 MM88C29
TL F 5908 鈥?1
1 2 MM78C30 MM88C30
TL F 5908 鈥?2
C
1996 National Semiconductor Corporation
TL F 5908
RRD-B30M36 Printed in U S A
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