參數(shù)資料
型號: LH5P832
廠商: Sharp Corporation
英文描述: CMOS 256K (32K x 8) Pseudo-Static RAM
中文描述: 的CMOS 256K(32K的× 8)偽靜態(tài)存儲器
文件頁數(shù): 2/9頁
文件大小: 95K
代理商: LH5P832
5P832-2
I/O
1
I/O
2
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
I/O
8
20
CLOCK
GENERATOR
27
22
CE
R/W
A
3
A
2
A
1
A
0
10
A
12
A
11
A
10
A
9
A
8
A
7
A
6
A
5
A
4
A
13
A
14
COLUMN
ADDRESS
BUFFER
ROW
ADDRESS
BUFFER
REFRESH
ADDRESS
COUNTER
DATA
IN
BUFFER
DATA
OUT
BUFFER
I/O
SELECTOR
COLUMN
DECODER
SENSE
AMPS
MEMORY
ARRAY
256 ROWS
128 COLUMNS
ROW
DECODER
EXT/INT
ADDRESS
MUX
V
BB
BIAS-GENERATOR
GND
V
CC
OE/
RFSH
16
17
18
19
15
13
12
11
2
23
21
24
25
26
1
4
5
7
8
9
3
6
28
14
SELF-REFRESH
TIMER
AUTO-REFRESH
CONTROLLER
Figure 2. LH5P832 Block Diagram
PIN DESCRIPTION
SIGNAL
R/W
OE/RFSH
I/O
1
- I/O
8
A
0
- A
7
PIN NAME
Read/Write input
Output Enable/Refresh input
Data inputs and outputs
Row address inputs
SIGNAL
A
8
- A
14
CE
V
CC
GND
PIN NAME
Column Address inputs
Chip Enable input
Power supply
Ground
TRUTH TABLE
CE
L
L
L
H
H
H
R/W
L
H
H
X
X
X
OE/RFSH
X
L
H
L
L
H
MODE
Write
Read
I/O
1
- I/O
8
Data in
Data out
High-Z
High-Z
High-Z
High-Z
I
CC
NOTE
1
Operating (I
CC1
)
Operating (I
CC1
)
Operating (I
CC1
)
Operating (I
CC1
)
Self Refresh (I
CC3
)
Standby (I
CC2
)
CE-Only Refresh
Auto Refresh
Self Refresh
Standby
1, 2
1, 3
1
NOTES:
1.
X = H or L 2. OE Pulsewidth < 8
μ
s 3. OE Pulsewidth
8
μ
s
LH5P832
CMOS 256K (32K
×
8) Pseudo-Static RAM
2
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