69
XR-VS99
PDK032A (VCD ASSY : IC1751)
• 1M ROM
•
Block Diagram
A16
2
MEMORY MATRIX
(131,072 x 8bit)
COLUMN SELECTOR
CE
BUFFER
OE
BUFFER
TIMING
GENERATOR
SENSE AMP
ADDRESS DECODER
ADDRESS BUFFER
OUTPUT BUFFER
A15
3
A14
29
A13
28
A12
4
A11
25
A10
23
A9
26
A8
27
A7
5
A6
6
A5
7
A4
8
A3
9
A2
10
A1
11
A0
12
D7
21
D6
20
D5
19
D4
18
D3
17
D2
15
D1
14
D0
13
CE
22
OE
24
OE
1
/OE
1
/D.C.
1
Vcc
32
GND
16