IS61C256AL-12TLI-TR ISSI, Integrated Silicon Solution Inc, IS61C256AL-12TLI-TR Datasheet - Page 2

• Manufacturer Part Number: IS61C256AL-12TLI-TR
• Description: IC SRAM 256KBIT 12NS 28TSOP
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS61C256AL-12TLI-TR

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 256K (32K x 8)
• Speed: 12ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TSOP
• Density: 256Kb
• Access Time (max): 12ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 15b
• Package Type: TSOP-I
• Operating Temp Range: -40C to 85C
• Number Of Ports: 1
• Supply Current: 25mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Word Size: 8b
• Number Of Words: 32K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

PIN DESCRIPTIONS
IS61C256AL
PIN CONFIGURATION
28-Pin SOJ
2
ABSOLUTE MAXIMUM RATINGS
Note:
1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a
A0-A14
CE
OE
WE
I/O0-I/O7
V
GND
DD
Symbol
V
T
P
I
stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
reliability.
GND
OUT
I/O0
I/O1
I/O2
A14
A12
STG
T
TERM
A7
A6
A5
A4
A3
A2
A1
A0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Address Inputs
Chip Enable Input
Output Enable Input
Write Enable Input
Power
Ground
Bidirectional Ports
Parameter
Terminal Voltage with Respect to GND
Storage Temperature
Power Dissipation
DC Output Current (LOW)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
WE
A13
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
(1)
Integrated Silicon Solution, Inc. — www.issi.com —
PIN CONFIGURATION
28-Pin TSOP
TRUTH TABLE
Mode
Not Selected
(Power-down)
Output Disabled H
Read
Write
VDD
A11
A13
A14
A12
WE
OE
A9
A8
A7
A6
A5
A4
A3
22
23
24
25
26
27
28
1
2
3
4
5
6
7
–0.5 to +7.0
–65 to +150
WE
WE
WE
WE
WE
Value
X
H
L
1.5
20
CE
CE
CE
CE
CE
H
L
L
L
OE
OE
OE
OE
OE
X
H
X
L
I/O Operation V
High-Z
High-Z
D
D
OUT
Unit
IN
mA
°C
W
V
21
20
19
18
17
16
15
14
13
12
11
10
9
8
ISSI
1-800-379-4774
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
DD
I
SB
Current
1
I
I
I
CC
CC
CC
, I
10/23/06
SB
Rev. B
2
®