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74AC158B Datasheet

  • 74AC158B

  • QUAD 2 CHANNEL MULTIPLEXER INV.

  • 84.19KB

  • 9頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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74AC158
QUAD 2 CHANNEL MULTIPLEXER (INV.)
PRELIMINARY DATA
s
s
s
s
s
s
s
s
s
HIGH SPEED: t
PD
= 4 ns (TYP.) at V
CC
= 5V
LOW POWER DISSIPATION:
I
CC
= 8
碌A
(MAX.) at T
A
= 25
o
C
HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28% V
CC
(MIN.)
50鈩?TRANSMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 24 mA (MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
鈮?/div>
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 158
IMPROVED LATCH-UP IMMUNITY
B
M
(Plastic Package)
(Micro Package)
ORDER CODES :
74AC158B
74AC158M
DESCRIPTION
The AC158 is an high-speed CMOS QUAD
2-CHANNEL
MULTIPLEXER
(INVERTING)
fabricated with sub-micron silicon gate and
double-layer metal wiring C
2
MOS technology. It is
ideal for low power applications maintaining high
speed operation similar to equivalent Bipolar
Schottky TTL.
It consists of four 2-input digital multiplexers with
common select and strobe inputs. It is an
inverting multiplexer. When the STROBE input is
held high selection of data is inhibit and all the
outputs become high. The SELECT decoding
determines whether the A or B inputs get routed
to their corresponding Y outputs.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
May 1997
1/9

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