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M74HC139 Datenblatt(PDF) 1 Page - STMicroelectronics

Teilenummer M74HC139
Bauteilbeschribung  M54HC138F1R M74HC138M1R M74HC138B1R M74HC138C1R
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
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M54HC139
M74HC139
February 1993
DUAL 2 TO 4 DECODER/DEMULTIPLEXER
B1R
(Plastic Package)
ORDER CODES :
M54HC139F1R
M74HC139M1R
M74HC139B1R
M74HC139C1R
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
PIN CONNECTIONS (top view)
NC =
No Internal
Connection
INPUT AND OUTPUT EQUIVALENT CIRCUIT
DESCRIPTION
.
HIGH SPEED
tPD = 12 ns (TYP.) AT VCC =5 V
.
LOW POWER DISSIPATION
ICC =4
µA (MAX.) AT TA =25 °C
.
HIGH NOISE IMMUNITY
VNIH =VNIL =28 % VCC (MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
|IOH|= IOL = 4 mA (MIN.)
.
BALANCED PROPAGATION DELAYS
tPLH =tPHL
.
WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
.
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS139
The M54/74HC139 is a high speed CMOS DUAL
TWO LINE TO FOUR LINE DECODER/DEMULTI-
PLEXER fabricated in silicon gate C
2MOS technol-
ogy. It has the same high speed performance of
LSTTL combined with true CMOS low power con-
sumption. The active low enable input can be used
for gating or as a data input for demultiplexing ap-
plications. While the enable input is held high, all
four outputs are high independently of the other in-
puts. All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
1/9


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