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零件编号 | M74HCT139 | ||
描述 | DUAL 2 TO 4 DECODER/DEMULTIPLEXER | ||
制造商 | ST Microelectronics | ||
LOGO | |||
1 Page
M54HCT139
M74HCT139
DUAL 2 TO 4 DECODER/DEMULTIPLEXER
. HIGH SPEED
tPD = 17 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
. COMPATIBLE WITH TTL OUTPUTS
VIH = 2V (MIN.) VIL = 0.8V (MAX)
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS139
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
DESCRIPTION
The M54/74HCT139 is a high speed CMOS DUAL
TWO LINE TO FOUR LINE DECODER/DEMULTI-
PLEXER fabricated in silicon gate C2MOS 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 applica-
tions. While the enable input is held high, all four out-
puts are high independently of the other inputs. All
inputs are equipped with protection circuits against
static discharge and transient excess volt-age.This in-
tegrated circuit has input and output characteristics
that are fully compatible with 54/74 LSTTL logic
families. M54/74HCT devices are designed to directly
interface HSC2MOS systems with TTL and NMOS
components. They are also plug in replacements for
ORDER CODES :
M54HCT139F1R M74HCT139M1R
M74HCT139B1R M74HCT139C1R
PIN CONNECTIONS (top view)
INPUT AND OUTPUT EQUIVALENT CIRCUIT
February 1993
NC =
No Internal
Connection
1/9
M54/M74HCT139
DIM.
A
B
D
d1
d2
E
e
e3
F
G
M
M1
MIN.
9.78
8.89
4.2
7.37
PLCC20 MECHANICAL DATA
mm
TYP.
2.54
0.56
1.27
5.08
0.38
1.27
1.14
MAX.
10.03
9.04
4.57
MIN.
0.385
0.350
0.165
8.38 0.290
0.101
inch
TYP.
0.100
0.022
0.050
0.200
0.015
0.050
0.045
MAX.
0.395
0.356
0.180
0.330
0.004
P027A
8/9
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页数 | 9 页 | ||
下载 | [ M74HCT139.PDF 数据手册 ] |
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