m54hc137k STMicroelectronics, m54hc137k Datasheet - Page 2

• Manufacturer Part Number: m54hc137k
• Description: 3 To 8 Line Decoder/latch Inverting
• Manufacturer: STMicroelectronics

M54HC137
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
2/10
GL
H
X
X
L
L
L
L
L
L
L
L
ENABLE
G1
X
H
H
H
H
H
H
H
H
H
L
G2
H
X
L
L
L
L
L
L
L
L
L
INPUTS
C
X
X
H
H
H
H
X
L
L
L
L
SELECT
B
H
H
H
H
X
X
X
L
L
L
L
A
X
X
H
H
H
H
X
L
L
L
L
Y0
H
H
H
H
H
H
H
H
H
L
Outputs corresponding to stored address L: all others H
PIN DESCRIPTION
Y1
H
H
H
H
H
H
H
H
H
9, 10, 11, 12,
L
13, 14, 15,
PIN N°
1, 2, 3
16
4
5
6
7
8
Y2
H
H
H
H
H
H
H
H
H
L
SYMBOL
Y3
OUTPUTS
Y0 to Y7
H
H
H
H
H
H
H
H
H
L
A to C
GND
V
GL
G2
G1
CC
Y4
H
H
H
H
H
H
H
H
H
L
Data Inputs
Latch Enable Input (Active
LOW)
Data Enable Input (Active
LOW)
Data Enable Input (Active
HIGH)
Multiplexer Outputs
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
Y5
H
H
H
H
H
H
H
H
H
L
Y6
H
H
H
H
H
H
H
H
H
L
Y7
H
H
H
H
H
H
H
H
H
L