IS65WV25616DBLL Datasheet, PDF (1/17 Pages) Integrated Silicon Solution, Inc – 256K x 16 LOW VOLTAGE, ULTRA LOW POWER CMOS STATIC SRAM

IS62WV25616DALL/DBLL, IS65WV25616DBLL
256K x 16 LOW VOLTAGE,
ULTRA LOW POWER CMOS STATIC SRAM
FEATURES
• High-speed access time: 35, 45, 55 ns
• CMOS low power operation
30 mW (typical) operating
6 µW (typical) CMOS standby
• TTL compatible interface levels
• Single power supply
1.65V--2.2V Vdd (IS62WV25616DALL)
2.5V--3.6V Vdd (IS62/65WV25616DBLL)
• Fully static operation: no clock or refresh
required
• Three state outputs
• Data control for upper and lower bytes
• Industrial and Automotive temperature support
• Lead-free available
• 2 CS option available
DESCRIPTION
FEBRUARY 2012
The ISSI IS62WV25616DALL and IS62/65WV25616DBLL
arehigh-speed, low power, 4M bit SRAMs organized as
256K words by 16 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
(deselcted) or when CS1 is LOW, CS2 is HIGH and both
LB and UB are HIGH, 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 LOWWrite Enable (WE)
controls both writing and reading of the memory. A data byte
allows Upper Byte (UB) and Lower Byte (LB) access.
The IS62WV25616DALL and IS62/65WV25616DBLL are
packaged in the JEDEC standard 44-Pin TSOP (TYPE II)
and 48-pin mini BGA (6mmx8mm).
FUNCTIONAL BLOCK DIAGRAM
A0-A17
DECODER
256K x 16
MEMORY ARRAY
VDD
GND
I/O0-I/O7
Lower Byte
I/O8-I/O15
Upper Byte
I/O
DATA
CIRCUIT
CS2
CS1
OE
CONTROL
WE
CIRCUIT
UB
LB
COLUMN I/O
Copyright © 2012 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 lat-
est 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 ex-
pected 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.  B
02/07/2012