m54hc148k1 STMicroelectronics, m54hc148k1 Datasheet - Page 2

• Manufacturer Part Number: m54hc148k1
• Description: 8 To 3 Line Priority Encoder
• Manufacturer: STMicroelectronics

M54HC148
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
X : Don’t Care
2/10
E1
H
L
L
L
L
L
L
L
L
L
X
H
X
X
X
X
X
X
X
0
L
H
H
X
X
X
X
X
X
X
1
L
X
H
X
X
X
X
X
H
H
2
L
INPUTS
H
H
H
H
X
X
X
X
X
3
L
X
H
X
X
X
H
H
H
H
4
L
X
H
X
X
H
H
H
H
H
5
L
PIN DESCRIPTION
H
H
H
H
H
H
H
6
X
X
L
13, 1, 2, 3, 4
10, 11, 12,
PIN N°
9, 7, 6
15
14
16
5
8
X
H
H
H
H
H
H
H
H
7
L
SYMBOL
A2
H
H
H
H
H
H
A
L
L
L
L
0 to 7
0
GND
V
EO
GS
EI
to A
CC
2
A1
H
H
H
H
H
H
L
L
L
L
Data Outputs
Data Inputs
Enable Output
Enable Input
Priority Flag Output
Ground (0V)
Positive Supply Voltage
OUTPUTS
NAME AND FUNCTION
A0
H
H
H
H
H
H
L
L
L
L
GS
H
H
L
L
L
L
L
L
L
L
E0
H
H
H
H
H
H
H
H
H
L