HDSP-2301 HP [Agilent(Hewlett-Packard)], HDSP-2301 Datasheet - Page 33

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

Figure 19. Latched Interface to the HDSP-2470/-2471/-2472 DISPLAY PROCESSOR CONTROLLER
*CS IS A LOGICAL
COMBINATION OF HIGH
ORDER ADDRESS BITS
THAT DISTINGUISH
THE ADDRESS OF THE
HDSP-2470/1/2 FROM
THE REST OF THE
MICROPROCESSOR
SYSTEM.
WR
VMA
CS*
CS*
2
8080A INTERFACE
6800 INTERFACE
3
4
5
74LS10
74LS10
6
ADDRESS
DATA
V CC
V CC
BUS
BUS
A 4
A 3
A 2
A 0
D 7
D 6
D 5
D 4
D 3
D 2
D 1
D 0
A 1
ONLY REQUIRED FOR RAM MODE
18
14
13
11
1
17
14
13
11
6
4
3
9
1
8
7
4
3
6D
5D
4D
3D
2D
1D
CL
BD
7D
6D
5D
4D
3D
2D
1D
CL
74LS273
13
10
11
74LS10
CL
CONFIGURATION a
CONFIGURATION b
1
2
9
LEFT, RIGHT OR
74LS10
74LS10
BLOCK MODES
6Q
5Q
4Q
3Q
2Q
1Q
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
15
12
10
7
5
2
19
16
15
12
9
6
5
2
12
8
13
1
2
74LS10
a
12
25
(25)
(22)
(23)
(21)
(19)
(17)
(15)
(13)
(11)
(9)
(7)
(5)
(3)
(1)
(4)
b
12470/1/2
A 4
A 3
A 2
A 1
A 0
READY
CS
DI 7
DI 6
DI 5
DI 4
DI 3
DI 2
DI 1
DI 0
HDSP
AN1016.19