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RMD-V3000X, RMD-V3070
1.4 GENERAL INFORMATION
IC
HY62256BLLP-70 (IC4044: CONTROL Assy)
256k SDAM
Pin Assignment (Top view)
Block Diagram
A0
ROW DECODER
MEMORY ARRAY
512×512
A14
/CS
/OE
/WE
PE0002A (IC4045: CONTROL Assy)
512k EPROM
Pin Assignment (Top view)
10
¶ The information shown in the list is basic information and may
not correspond exactly to that shown in the schematic diagrams.
Pin Function
No. Name
Description
1
A14
2
A12
Address Input
3
A7
|
|
10
A0
11
I/O1
|
|
Data Input/Output
13
I/O3
14
Vss
Ground
15
I/O4
|
|
Data Input/Output
I/O1
19
I/O8
I/O8
Pin Function
No. Name
Description
1
A15
2
A12
Address Inputs
3
A7
|
|
10
A0
11
O0
|
|
Data Output
13
O2
14
Vss
Ground
15
O3
|
|
Data Output
19
O7
No. Name
Description
20
/CS
Chip Select
21
A10
Address Input
22
/OE
Output Enable
23
A11
24
A9
Address Input
25
A8
26
A13
27
/WE
Write Enable
28
Vcc
Power (+5.0V)
No. Name
Description
20
CE
Chip Enable
21
A10
Address Input
22 OE/Vpp Output Enable/
Programming Voltage
23
A11
24
A9
25
A8
Address Input
26
A13
27
A14
28
Vcc
Power (+5.0V)
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