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Integrated Silicon Solution - 8Mb LOW VOLTAGE ULTRA LOW POWER PSEUDO CMOS STATIC RAM

Numéro de référence IS66WV51216DBLL
Description 8Mb LOW VOLTAGE ULTRA LOW POWER PSEUDO CMOS STATIC RAM
Fabricant Integrated Silicon Solution 
Logo Integrated Silicon Solution 





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IS66WV51216DBLL fiche technique
IS66WV51216DALL
IS66/67WV51216DBLL
8Mb LOW VOLTAGE,
ULTRA LOW POWER PSEUDO CMOS STATIC RAM
JULY 2011
FEATURES
• High-speed access time:
– 70ns (IS66WV51216DALL, IS66/67WV51216DBLL)
– 55ns (IS66/67WV51216DBLL)
• CMOS low power operation
• Single power supply
– Vdd = 1.7V-1.95V (IS66WV51216 ALL)
– Vdd = 2.5V-3.6V (IS66/67WV51216 BLL)
• Three state outputs
• Data control for upper and lower bytes
• Industrial temperature available
• Lead-free available
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION
The ISSI IS66WV51216DALL and IS66/67WV51216DBLL
are 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
(deselected) or when CS1 is , CS2 is
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 IS66WV51216DALL and IS66/67WV51216DBLL are
packaged in the JEDEC standard 48-ball 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 © 2011 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
Rev.  A
06/28/2011
1
http://www.Datasheet4U.com

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