IS62LV256-70UI ISSI, Integrated Silicon Solution Inc, IS62LV256-70UI Datasheet - Page 2

• Manufacturer Part Number: IS62LV256-70UI
• Description: IC SRAM 256KBIT 70NS 28SOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS62LV256-70UI

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 256K (32K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IS62LV256
PIN CONFIGURATION
28-Pin SOJ and SOP
TRUTH TABLE
PIN DESCRIPTIONS
2
Mode
Not Selected
(Power-down)
Output Disabled
Read
Write
A0-A14
CE
OE
WE
I/O0-I/O7
Vcc
GND
GND
I/O0
I/O1
I/O2
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
Input/Output
Power
Ground
Address Inputs
Chip Enable Input
Output Enable Input
Write Enable Input
1
2
3
4
5
6
7
8
9
10
11
12
13
14
WE
WE
WE
WE
WE
H
H
X
L
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CE
CE
CE
CE
CE
H
L
L
L
VCC
WE
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
OE
OE
OE
OE
OE
H
X
L
X
Integrated Silicon Solution, Inc. — www.issi.com —
I/O Operation
High-Z
High-Z
D
D
OUT
IN
28-Pin TSOP (Type I) (Reverse Bent)
28-Pin TSOP (Type I) (Normal Bent)
VCC
A11
A13
A14
A12
VCC
WE
A12
A14
A13
A11
OE
WE
OE
A3
A4
A5
A6
A7
A8
A9
A9
A8
A7
A6
A5
A4
A3
Vcc Current
I
I
I
I
CC
CC
CC
SB
22
23
24
25
26
27
28
1
2
3
4
5
6
7
28
27
26
25
24
23
22
7
6
5
4
3
2
1
1
1
1
1
, I
, I
, I
, I
SB
CC
CC
CC
2
2
2
2
ISSI
1-800-379-4774
10
11
12
13
14
15
16
17
18
19
20
21
8
9
21
20
19
18
17
16
15
14
13
12
11
10
9
8
GND
12/11/02
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
A10
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
A2
A1
A0
CE
Rev. K
®