(No.XA002)1-25
SECTION 4
Description of major ICs
4.1
74LCX373MTC-X (IC512,IC513) : Octal D-type latch
• Pin layout
• Pin function
• Truth table
H = HIGH Voltage levelL = LOW Voltage levelZ = High imped-
anceX = ImmaterialQ0 = Previous Q0 before HIGH to LOW
transition of latch enable
• Block diagram
Symbol
Description
D0~D7
Data inputs
LE
Latch enable input
OE
Output enable input
Q0~Q7
3-State latch outputs
1
OE
2
Q0
3
D0
4
D1
5
Q1
6
Q2
7
20
19
18
17
16
15
14
D2
VCC
Q7
D7
D6
Q6
Q5
D5
(TOP VIEW)
8
D3
9
Q3
10
GND
13
12
11
D4
Q4
LE
INPUTS
OUTPUT
LE
OE
Dn
Qn
X
H
X
Z
H
L
L
L
H
L
H
H
L
L
X
Q0
Q
L
D
D0
3
2
Q0
11
1
LE
OE
Q
L
D
D1
4
5
Q1
Q
L
D
D2
7
6
Q2
Q
L
D
D3
8
9
Q3
Q
L
D
D4
13
12
Q4
Q
L
D
D5
14
15
Q5
Q
L
D
D6
17
16
Q6
Q
L
D
D7
18
19
Q7
Содержание XV-N30BK[MK2]
Страница 47: ... No XA002 1 47 ...
Страница 64: ...XV N30BK XV N33SL 2 16 MEMO MEMO ...
Страница 65: ...XV N30BK XV N33SL 2 7 MEMO 2 17 ...