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LH5P860 데이터 시트보기 (PDF) - Sharp Electronics
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LH5P860
CMOS 512K (64K × 8) Pseudo-Static RAM
Sharp Electronics
LH5P860 Datasheet PDF : 13 Pages
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LH5P860
CMOS 512K (64K
×
8) Pseudo-Static RAM
A
0
12
A
1
11
A
2
10
A
3
9
A
4
8
A
5
7
A
6
6
A
7
5
A
8
27
A
9
26
A
10
23
A
11
25
A
12
4
A
13
28
A
14
3
A
15
31
A
9
- A
15
COLUMN
ADDRESS
BUFFER
ROW
ADDRESS
A
0
- A
8
BUFFER
REFRESH
ADDRESS
COUNTER
EXT/INT
ADDRESS
MUX
COLUMN
DECODER
SENSE
AMPS
ROW
DECODER
MEMORY
ARRAY
512 K
V
BB
GENERATOR
I/O
SELECTOR
DATA
IN
BUFFER
DATA
OUT
BUFFER
16 GND
32 V
CC
13 I/O
0
14 I/O
1
15 I/O
2
17 I/O
3
18 I/O
4
19 I/O
5
20 I/O
6
21 I/O
7
CE
1
22
CE
2
30
CLOCK
GENERATOR
RFSH 1
OE 24
R/W 29
REFRESH
CONTROLLER
REFRESH
TIMER
Figure 2. LH5P860 Block Diagram
PIN DESCRIPTION
SIGNAL
A
0
- A
15
R/W
OE
RFSH
CE
1
, CE
2
PIN NAME
Address input
Read/Write input
Output Enable input
Refresh input
Chip Enable input
SIGNAL
I/O
0
- I/O
7
V
CC
GND
NC
PIN NAME
Data input/output
Power Supply
Ground
No Connection
5P860-2
2
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