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74ACT157M Datasheet

  • 74ACT157M

  • QUAD 2 CHANNEL MULTIPLEXER

  • 8頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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74ACT157
QUAD 2 CHANNEL MULTIPLEXER
PRELIMINARY DATA
s
s
s
s
s
s
s
s
s
HIGH SPEED: t
PD
= 5.5 ns (TYP.) at V
CC
= 5V
LOW POWER DISSIPATION:
I
CC
= 8
碌A
(MAX.) at T
A
= 25
o
C
COMPATIBLE WITH TTL OUTPUTS
V
IH
= 2V (MIN), V
IL
= 0.8V (MAX)
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) = 4.5V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 157
IMPROVED LATCH-UP IMMUNITY
B
M
(Plastic Package)
(Micro Package)
ORDER CODES :
74ACT157B
74ACT157M
DESCRIPTION
The ACT157 is an high-speed CMOS QUAD
2-CHANNEL MULTIPLEXER 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
PIN CONNECTION AND IEC LOGIC SYMBOLS
common select and strobe inputs. It is a
non-inverting multiplexer. When the STROBE
input is held High selection of data is inhibit and
all the outputs become low. The SELECT
decoding determines whether the A or B inputs
get routed to their corresponding Y outputs.
The device is designed to interface directly High
Speed CMOS systems with TTL, NMOS and
CMOS output voltage levels.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
May 1997
1/8

74ACT157M 產(chǎn)品屬性

  • STMicroelectronics

  • Multiplexer

  • ACT

  • 8 / 4

  • 9 ns at 5 V

  • 5.5 V

  • 4.5 V

  • + 125 C

  • SMD/SMT

  • SOP-16

  • Tube

  • - 55 C

  • 8

  • 4

  • 50

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