lh5164a Sharp Microelectronics of the Americas, lh5164a Datasheet - Page 2

• Manufacturer Part Number: lh5164a
• Manufacturer: Sharp Microelectronics of the Americas

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