FS-SD58V/FS-SD78V/FS-SD98V
1-40
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Vcc
DQ1
DQ2
DQ3
DQ4
Vcc
DQ5
DQ6
DQ7
DQ8
NC
NC
WE
RAS
NC
A0
A1
A2
A3
Vcc
Vss
DQ16
DQ15
DQ14
DQ13
Vss
DQ12
DQ11
DQ10
DQ9
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
Vss
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
V53C16258HK40(IC103):4M DRAM
1.Terminal layout
2.Pin function
3.Block diagram
OE
WE
UCAS
LCAS
Vcc
Vss
RAS
RAS CLOCK
GENERATOR
CAS CLOCK
GENERATOR
WE CLOCK
GENERATOR
OE CLOCK
GENERATOR
I/O
BUFFER
DATA I/O BUS
COLUMN DECODERS
SENSE AMPLIFIERS
MEMORY
ARRAY
256K x 16
R
O
W DECODERS
ADDRESS B
UFFERS
AND PREDECODERS
512 x 16
256K x 16
512
Y0-Y8
X0-X8
REFRESH
COUNTER
9
A0
A1
A7
A8
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
I/O16
Symbol
Function
A0-A8
RAS
UCAS
LCAS
WE
OE
DQ1-DQ16
Vcc
Vss
NC
Adress Inputs
Row Address Strobe
Column Address Strobe / Upper Byte Control
Column Address Streobe / Lower Byte Control
Write Enable
Output Enable
Data Input, Output
+5V Supply
0V Supply
No Connect
Содержание FS-SD58V
Страница 52: ...A B C 1 2 3 4 5 VCD board reverse side VCD board foward side 2 9 FS SD58V FS SD78V FS SD98V ...
Страница 53: ... M E M O 2 10 FS SD58V FS SD78V FS SD98V ...
Страница 55: ... M E M O 3 2 ...