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Integrated Silicon Solution Electronic Components Datasheet

IS65WV2568DALL Datasheet

ULTRA LOW POWER CMOS STATIC RAM

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IS62/65WV2568DALL 
IS62/65WV2568DBLL
256K x 8 LOW VOLTAGE,
JUNE 2013
ULTRA LOW POWER CMOS STATIC RAM
FEATURES
• High-speed access time: 35ns, 45ns, 55ns
• CMOS low power operation
– 36 mW (typical) operating
– 9 µW (typical) CMOS standby
• TTL compatible interface levels
• Single power supply
– 1.8V ± 10% Vcc (IS62/65WV2568DALL)
– 2.5V–3.6V Vcc (IS62/65WV2568DBLL)
• Fully static operation: no clock or refresh
required
• Three state outputs
• Industrial temperature available
• Lead-free available
DESCRIPTION
The ISSI IS62/65WV2568DALL and IS62/65WV2568DBLL
are high-speed, 2M bit static RAMs organized as
256K words by 8 bits. It is fabricated using ISSI's high-
performance CMOS technology.This highly reliable process
coupled with innovative circuit design techniques, yields
high-performance and low power consumption devices.
When CS1 is HIGH (deselected) or when CS2 is low
(deselected) , the device assumes a standby mode at
which the power dissipation can be reduced down with
CMOS input levels.
Easy memory expansion is provided by using Chip Enable
and Output Enable inputs. The active LOW Write Enable
(WE) controls both writing and reading of the memory.
The IS62/65WV2568DALL and IS62/65WV2568DBLL are
packaged in the JEDEC standard 32-pin TSOP (TYPE I),
sTSOP (TYPE I), and 36-pin mini BGA.
FUNCTIONAL BLOCK DIAGRAM
A0-A17
VCC
GND
I/O0-I/O7
DECODER
I/O
DATA
CIRCUIT
256K x 8
MEMORY ARRAY
COLUMN I/O
CS2
CS1
OE
WE
CONTROL
CIRCUIT
Copyright © 2013 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification 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 described 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. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reason-
ably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications
unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev.  C
05/24/2013
1


Integrated Silicon Solution Electronic Components Datasheet

IS65WV2568DALL Datasheet

ULTRA LOW POWER CMOS STATIC RAM

No Preview Available !

IS62/65WV2568DALL, IS62/65WV2568DBLL
PIN DESCRIPTIONS
A0-A17 Address Inputs
CS1 Chip Enable 1 Input
CS2 Chip Enable 2 Input
OE Output Enable Input
WE Write Enable Input
I/O0-I/O7 Input/Output
NC No Connection
Vcc Power
GND Ground
PIN CONFIGURATION
36-pin mini BGA (B) (6mm x 8mm)
1 23 45 6
A A0 A1 CS2 A3 A6 A8
B I/O4 A2 WE A4 A7 I/O0
C I/O5
NC A5
I/O1
D GND
Vcc
E Vcc
GND
F I/O6
NC A17
I/O2
G I/O7 OE CS1 A16 A15 I/O3
H A9 A10 A11 A12 A13 A14
32-pin TSOP (TYPE I), sTSOP (TYPE I)
A11 1
A9 2
A8 3
A13 4
WE 5
CS2 6
A15 7
VCC 8
A17 9
A16 10
A14 11
A12 12
A7 13
A6 14
A5 15
A4 16
32 OE
31 A10
30 CS1
29 I/O7
28 I/O6
27 I/O5
26 I/O4
25 I/O3
24 GND
23 I/O2
22 I/O1
21 I/O0
20 A0
19 A1
18 A2
17 A3
2 Integrated Silicon Solution, Inc. — www.issi.com
Rev.  C
05/24/2013


Part Number IS65WV2568DALL
Description ULTRA LOW POWER CMOS STATIC RAM
Maker ISSI
Total Page 14 Pages
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