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M54HC131F1R Fiches technique(PDF) 2 Page - STMicroelectronics

No de pièce M54HC131F1R
Description  3 TO 8 LINE DECODER/LATCH
PDF  12 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC131F1R Fiches technique(HTML) 2 Page - STMicroelectronics

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



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