LH52256C-70LL Sharp Microelectronics, LH52256C-70LL Datasheet - Page 2

• Manufacturer Part Number: LH52256C-70LL
• Description: IC SRAM 256KBIT 70NS 28DIP
• Manufacturer: Sharp Microelectronics

Specifications of LH52256C-70LL

• Rohs Status: RoHS non-compliant
• Format - Memory: RAM
• Memory Type: SRAM
• Memory Size: 256K (32K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Other names: 425-1833-5

LH52256C/CH
PIN DESCRIPTION
2
A
SIGNAL
A
A
A
WE
OE 22
CE 20
A
A
A
A
A
A
0
14
13
12
WE
OE
8
6
5
CE
7
4
3
- A
25
26
27
1
2
3
4
5
6
7
14
Address inputs
Chip enable
Write enable
Output enable
DECORDER
ROW
PIN NAME
Figure 3. LH52256C Block Diagram
10 9
A
0
A
COLUMN I/O
(512 x 512)
DECODER
1
MEMORY
COLUMN
CIRCUIT
ARRAY
A
8 21 24 23
2
A
10
A
9
A
11
8
8
I/O
SIGNAL
GND
1
V
CC
- I/O
CONTROL
BUFFERS
OUTPUT
8
INPUT
DATA
Data inputs and outputs
Power supply
Ground
CMOS 256K (32K
PIN NAME
8) Static RAM
28
14
11
12
13
15
16
17
18
19
52256C-2
GND
V
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
CC
1
2
3
4
5
6
7
8