IS62/65WV2568EALL
IS62/65WV2568EBLL
PRELIMINARY INFORMATION
OCTOBER 2014
256Kx8 LOW VOLTAGE,
ULTRA LOW POWER CMOS STATIC RAM
KEY FEATURES
DESCRIPTION
ISSI
The
IS62/65WV2568EALL/EBLL are high-speed,
High-speed access time: 45ns, 55ns
2M bit static RAMs organized as 256K words by 8 bits.
ISSI
CMOS low power operation
– 36 mW (typical) operating
It is fabricated using
's high-performance CMOS
– 9 µW (typical) CMOS standby
TTL compatible interface levels
Single power supply
technology. This highly reliable process coupled with
innovative circuit design techniques, yields high-
performance and low power consumption devices.
–1.65V-2.2V VDD (IS62/65WV2568EALL)
– 2.2V-3.6V VDD (IS62/65WV2568EBLL)
Three state outputs
When
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.
Industrial and Automotive temperature support
Lead-free available
Easy memory expansion is provided by using Chip
Enable and Output Enable inputs. The active LOW
Write Enable
controls both writing and reading
of the memory.
The IS62/65WV2568EALL/EBLL are packaged in the
JEDEC standard 32-pin TSOP (TYPE I), sTSOP
(TYPE I), and 36-pin mini BGA..
FUNCTIONAL BLOCK DIAGRAM
256K x 8
MEMORY
ARRAY
DECODER
A0 – A17
VDD
GND
I/O
DATA
I/O0 – I/O7
COLUMN I/O
CIRCUIT
CS2
CS1#
OE#
CONTROL
CIRCUIT
WE#
Copyright © 2014 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
reasonably 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
Rev. 0A
09/26/2014