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PDF IS61LV2568L Data sheet ( Hoja de datos )
| Número de pieza | IS61LV2568L | |
| Descripción | 256K x 8 HIGH-SPEED CMOS STATIC RAM | |
| Fabricantes | Integrated Silicon Solution | |
| Logotipo |  |
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IS61LV2568L
256K x 8 HIGH-SPEED CMOS STATIC RAM
ISSI®
JULY 2005
FEATURES
• High-speed access time: 8, 10 ns
• Operating Current: 50mA (typ.)
• Standby Current: 700µA (typ.)
• Multiple center power and ground pins for
greater noise immunity
• Easy memory expansion with CE and OE
options
• CE power-down
• TTL compatible inputs and outputs
• Single 3.3V power supply
• Packages available:
– 36-pin 400-mil SOJ
– 44-pin TSOP (Type II)
• Lead-free available
DESCRIPTION
The ISSI IS61LV2568L is a very high-speed, low power,
262,144-word by 8-bit CMOS static RAM. The IS61LV2568L
is fabricated using ISSI's high-performance CMOS tech-
nology. This highly reliable process coupled with innova-
tive circuit design techniques, yields higher performance
and low power consumption devices.
When CE is HIGH (deselected), the device assumes a
standby mode at which the power dissipation can be
reduced down to 36mW (max.) with CMOS input levels.
The IS61LV2568L operates from a single 3.3V power
supply and all inputs are TTL-compatible.
The IS61LV2568L is available in 36-pin 400-mil SOJ and
44-pin TSOP (Type II) packages.
FUNCTIONAL BLOCK DIAGRAM
A0-A17
VDD
GND
I/O0-I/O7
DECODER
256K X 8
MEMORY ARRAY
I/O
DATA
CIRCUIT
COLUMN I/O
CE
CONTROL
OE CIRCUIT
WE
Copyright © 2005 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this speci fication and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services desrcibed herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. C
07/25/05
1
http://www.Datasheet4U.com
1 page  
IS61LV2568L
ISSI ®
AC TEST CONDITIONS
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing and Reference Levels
Output Load
Unit
0V to 3.0V
3 ns
1.5V
See Figures 1 and 2
AC TEST LOADS
OUTPUT
ZO = 50Ω
Figure 1
50Ω
1.5V
30 pF
Including
jig and
scope
3.3V
319 Ω
OUTPUT
5 pF
Including
jig and
scope
Figure 2
353 Ω
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. C
07/25/05
5
5 Page 
IS61LV2568L
ORDERING INFORMATION
Commercial Range: 0°C to +70°C
Speed (ns)
8
10
Order Part No.
IS61LV2568L-8K
IS61LV2568L-8T
IS61LV2568L-10T
IS61LV2568L-10TL
Package
400-mil SOJ
TSOP (Type II)
TSOP (Type II)
TSOP (Type II), Lead-free
Industrial Range: –40°C to +85°C
Speed (ns)
10
Order Part No.
IS61LV2568L-10KI
IS61LV2568L-10KLI
Package
400-mil SOJ
400-mil SOJ, Lead-free
ISSI ®
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. C
07/25/05
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet IS61LV2568L.PDF ] | |
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