Pin Assignments
195
238
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
4-BIT PARALLEL-ACCESS SHIFT REGISTERS
OUTPUTS
QC
SHIFT/
V
CC
QA
QB
QD
QD CLOCK LOAD
V
CC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
16 15 14 13 12 11 10
9
16 15 14 13
10
9
12 11
QA
CLEAR
J
QB
QC
QD
QD
CK
SHIFT/
LOAD
K
A
B
C
D
1
CLEAR
2
J
3
K
4
A
5
B
6
C
7
D
8
GND
1
A0
2
A1
3
A2
4
E1
5
E2
6
E3
7
Y7
8
GND
SERIAL INPUTS
PARALLEL INPUTS
See page 350
See page 356
221
240
OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER
INPUTS
1 Rext/
Cext
1
V
CC
Cext
1Q
2Q
2CLR
2B
2A
V
CC
2G
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
16 15 14 13 12 11 10
9
20 19 18 17 16 15 14 13
12 11
Q
Q
CLR
Q
CLR
Q
1
1A
2
1B
3
1CLR
4
1Q
5
2Q
6
7
8
1
1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
2
2 Rext/ GND
Cext
Cext
See page 352
See page 358
237
241
OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
WITH ADDRESS LATCHES
VCC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
V
CC
2G
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
16 15 14 13 12 11 10
9
20 19 18 17 16 15 14 13
12 11
1
A0
2
A1
3
A3
4
LE
5
OE1
6
OE0
7
Y7
8
GND
1
1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
See page 354
See page 360
173
TI [ TEXAS INSTRUMENTS ]
