IS66WV51216ALL Datasheet, PDF (1/16 Pages) Integrated Silicon Solution, Inc – 8Mb LOW VOLTAGE, ULTRA LOW POWER PSEUDO CMOS STATIC RAM

IS66WV51216ALL
IS66WV51216BLL
8Mb LOW VOLTAGE,
ULTRA LOW POWER PSEUDO CMOS STATIC RAM
JANUARY 2010
FEATURES
• High-speed access time:55ns
• CMOS low power operation
– mW (typical) operating
–µW (typical) CMOS standby
• Single power supply
– 1.7V--1.95V Vdd (66WV51216ALL) (70ns)
– 2.5V--3.6V Vdd (66WV51216BLL) (55ns)
• Three state outputs
• Data control for upper and lower bytes
• Industrial temperature available
• Lead-free available
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION
The ISSI IS66WV51216ALL/BLL is a high-speed, 8M
bit static RAMs organized as 512K 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
(deselected) 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 LOW Write Enable
(WE) controls both writing and reading of the memory. A
data byte allows Upper Byte (UB) and Lower Byte (LB)
access.
The IS66WV51216ALL/BLL is packaged in the JEDEC
standard 48-pin mini BGA (6mm x 8mm) and 44-Pin TSOP
(TYPE II). The device is aslo available for die sales.
A0-A18
DECODER
512K x 16
MEMORY ARRAY
VDD
GND
I/O0-I/O7
Lower Byte
I/O8-I/O15
Upper Byte
I/O
DATA
CIRCUIT
COLUMN I/O
CS2
CS1
OE
CONTROL
WE
CIRCUIT
UB
LB
Copyright © 2006 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. — www.issi.com
1
Rev.  A
12/02/09