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54ACT251
8-Input Multiplexer with TRI-STATE
廬
Output
General Description
The 鈥橝C/鈥橝CT251 is a high-speed 8-input digital multiplexer.
It provides, in one package, the ability to select one bit of
data from up to eight sources. It can be used as universal
function generator to generate any logic function of four vari-
ables. Both true and complementary outputs are provided.
n
n
n
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n
Multifunctional capability
On-chip select logic decoding
Inverting and noninverting TRI-STATE outputs
Outputs source/sink 24 mA
鈥橝CT251 has TTL-compatible inputs
Standard Military Drawing (SMD)
鈥?鈥橝C251: 5962-87692
鈥?鈥橝CT251: 5962-89599
Features
n
I
CC
reduced by 50%
Logic Symbols
IEEE/IEC
DS100284-1
DS100284-2
Pin Names
S
0
鈥揝
2
OE
I
0
鈥揑
7
Z
Z
Select Inputs
Description
TRI-STATE Output Enable Input
Multiplexer Inputs
TRI-STATE Multiplexer Output
Complementary TRI-STATE Multiplexer
Output
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
FACT
廬
is a registered trademark of Fairchild Semiconductor Corporation.
漏 1998 National Semiconductor Corporation
DS100284
www.national.com