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LH5164AHD-10L Просмотр технического описания (PDF) - Sharp Electronics
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LH5164AHD-10L
CMOS 64K (8K × 8) Static RAM
Sharp Electronics
LH5164AHD-10L Datasheet PDF : 12 Pages
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LH5164A/AH
A
3
7
A
4
6
A
5
5
A
6
4
A
7
3
A
8
25
A
9
24
A
12
2
I/O
1
11
I/O
2
12
I/O
3
13
I/O
4
15
I/O
5
16
I/O
6
17
I/O
7
18
I/O
8
19
CMOS 64K (8K
×
8) Static RAM
MEMORY
ARRAY
(256 x 256)
28 V
CC
14 GND
DATA CONTROL
I/O
CIRCUITS
COLUMN DECODERS
COLUMN ADDRESS
BUFFER
WE 27
OE 22
CE
2
26
CE
1
20
NOTE:
Pin numbers apply to 28-pin DIP, SK-DIP, or SOP.
10 9 8 21 23
A
0
A
1
A
2
A
10
A
11
Figure 3. LH5164A/AH Block Diagram
5164A-2
PIN DESCRIPTION
SIGNAL
A
0
- A
12
CE
1
- CE
2
WE
OE
PIN NAME
Address inputs
Chip Enable input
Write Enable input
Output Enable input
TRUTH TABLE
CE
1
CE
2
WE
H
X
X
X
L
X
L
H
L
L
H
H
L
H
H
NOTE:
1. X = H or L
OE
MODE
X
Deselect
X
Deselect
X
Write
L
Read
H
Output disable
SIGNAL
I/O
1
- I/O
8
V
CC
GND
NC
PIN NAME
Data inputs and outputs
Power supply
Ground
No connection
I/O
1
- I/O
8
High-Z
High-Z
D
IN
D
OUT
High-Z
SUPPLY CURRENT
Standby (I
SB
)
Standby (I
SB
)
Operating (I
CC
)
Operating (I
CC
)
Operating (I
CC
)
NOTE
1
1
1
2
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