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STMicroelectronics Electronic Components Datasheet

M74HC131 Datasheet

3 TO 8 LINE DECODER/LATCH

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M74HC131 pdf
M54HC131
M74HC131
3 TO 8 LINE DECODER/LATCH
. HIGH SPEED
tPD = 22 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
54/74LS131
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M 54HC 13 1F 1R
M 74H C1 31 M1 R
M 74HC 13 1B 1R
M 74H C1 31 C1 R
PIN CONNECTIONS (top view)
DESCRIPTION
The M54/74HC131 is a high speed CMOS 3 TO 8
LINE DECODER/LATCH fabricated in silicon gate
C2MOS technology.
It has the same high speed performance of LSTTL
combined with true CMOS low power consumption.
This device is a DECODER/LATCH capable of se-
lecting arbitrarily one of eight outputs by three binary
inputs A, B, and C, in this case, the selected output
is at logic ”low”.
Also, when ENABLE input G1 is set low or ENABLE
input G2 is set high, selection is inhibited regardless
of other input signals and all the outputs are at high.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
October 1992
NC =
No Internal
Connection
1/12


STMicroelectronics Electronic Components Datasheet

M74HC131 Datasheet

3 TO 8 LINE DECODER/LATCH

No Preview Available !

M74HC131 pdf
M54/M74HC131
INPUT AND OUTPUT EQUIVALENT CIRCUIT
IEC LOGIC SYMBOL
PIN DESCRIPTION
PIN No
1, 2, 3
4
5
6
9, 10, 11,
12, 13, 14,
15, 7
8
16
SYMBOL
A, B, C
CLK
G2
G1
Y0, Y1, Y2,
Y3, Y4, Y5,
Y6, Y7
GND
VCC
NAME AND FUNCTION
Data Inputs
Clock Input (LOW to
HIGH, Edge-triggered)
Enable (Active LOW)
Enable (Active HIGH)
Data Outputs
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
CLK
X
X
L
INPUTS
ENABLE
G1 G2
C
XHX
LXX
HLL
HLL
HLL
HLL
HLH
HLH
HLH
HLH
HLX
SELECT
B
X
X
L
L
H
H
L
L
H
H
X
A
X
X
L
H
L
H
L
H
L
H
X
OUTPUTS
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
HHHHHHHH
HHHHHHHH
L HHHHHHH
H L HHHHHH
HH L HHHHH
HHH LHHHH
HHHH LHHH
HHHHH L HH
HHHHHH L H
HHHHHHH L
Outputs corresponding to stored address L: all others H
2/12


Part Number M74HC131
Description 3 TO 8 LINE DECODER/LATCH
Maker ST Microelectronics
Total Page 12 Pages
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