HDSP-2301 HP [Agilent(Hewlett-Packard)], HDSP-2301 Datasheet - Page 34

• Manufacturer Part Number: HDSP-2301
• Description: Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays
• Manufacturer: HP [Agilent(Hewlett-Packard)]

DATA
VMA-A 15
BUS
RESET
Figure 20. 6800 Microprocessor Interface Utilizing a 6820 PIA for an HDSP-2470/-2471/-2472 Alphanumeric Terminal
R/W
A 13
IRQ
A 3
A 0
A 1
2
23
26
27
28
29
30
31
32
33
22
24
36
35
21
25
34
37
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
CS 0
CS 1
CS 2
RS 0
RS 1
R/W
E
RESET
IRQ B
MOTOROLA
6821
PB 7
PB 6
PB 5
PB 4
PB 3
PB 2
PB 1
PB 0
CB 1
CB 2
PA 7
PA 6
PA 5
PA 4
PA 3
PA 2
PA 1
PA 0
CA 1
CA 2
17
16
15
14
13
12
11
10
19 8
9
8
7
6
5
4
3
2
18
40
39
74LS132
9
10
MICROSWITCH 61SW12-1 KEYBOARD
V CC
ER D 6 D 5 D 4 D 3
+
20 F
1 K
D 2 D 1 D 0
V CC
ST
1000 pF
22 K
1
2
5
14 4A
11
13
10
15
14 4A
11
13
10
15
5
2
6
3
1
5
2
6
3
1
3
4
3A
2A
1A
4B
3B
2B
1B
SEL
ST
3A
2A
1A
4B
3B
2B
1B
SEL
ST
CL
74LS157
74LS157
B 1
B 2
A 1
A 2
1000 pF
13
7
4Y
3Y
2Y
1Y
4Y
3Y
2Y
1Y
Q
11
12
9
7
4
12
9
7
4
74LS122
6
1
2
74LS132
3
26
4
5
*16, 24, 32 OR 40 CHARACTER HDSP-2000 DISPLAY
BOARD DESIGNED TO INTERFACE TO THE HDSP-
2470/71/72 DISPLAY PROCESSOR CONTROLLER
6
6
10
12
14
16
18
20
23
21
19
17
15
13
11
22
8
2
4
1
RESET
DO 6
DO 5
DO 4
DO 3
DO 2
DO 1
DO 0
DATA
VALID
DI 7
DI 6
DI 5
DI 4
DI 3
DI 2
DI 1
DI 0
READY
CS
CONTROLLER
PROCESSOR
2470/71/72
DISPLAY
HDSP-
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
G
M
O
Q
A
B
C
D
E
H
K
N
P
F
J
L
I
V B
COLUMN 1
COLUMN 2
COLUMN 3
COLUMN 4
COLUMN 5
CLOCK
DISPLAY DATA
V CC
GND
2416/24/32/40
DISPLAY*
HDSP-
AN1016.20