Description Of Major Ics; 74Lcx373Mtc-X(Ic512,Ic513) - JVC XV-SA600BK Service Manual

XV-SA600BK/XV-SA602SL

4.1 74LCX373MTC-X(IC512,IC513)

4.1.1 Pin layout
OE 1
Q0 2
D0 3
D1 4
Q1 5
Q2 6
D2 7
D3 8
Q3 9
GND 10
26
SECTION 4

Description of major ICs

20 VCC
19 Q7
18 D7
17 D6
16 Q6
15 Q5
14 D5
13 D4
12 Q4
11 LE
4.1.2 Pin function
Description
Symbol
Data inputs
D0~D7
Latch enable input
LE
Output enable input
OE
3-State latch outputs
Q0~Q7
4.1.3 Truth table
INPUTS
LE Dn
OE
X H
H L
H L
L L
H = HIGH Voltage level
L = LOW Voltage level
Z = High impedance
X = Immaterial
Q0 = Previous Q0 before HIGH to LOW transition of latch enable
OUTPUTS
Qn
X Z
L L
H H
X Q0