IS62C5128BL, IS65C5128BL
512Kꢀxꢀ8ꢀHIGH-SPEEDꢀCMOSꢀSTATICꢀRAM
JULYꢀ2011
FEATURES
•ꢀ High-speedꢀaccessꢀtime:ꢀ45ns
•ꢀ LowꢀActiveꢀPower:ꢀ50ꢀmWꢀ(typical)
DESCRIPTION
TheꢀISSIꢀIS62C5128BLꢀandꢀIS65C5128BLꢀareꢀhigh-speed,ꢀ
4,194,304-bitꢀstaticꢀRAMsꢀorganizedꢀasꢀ524,288ꢀwordsꢀbyꢀ
8ꢀbits.ꢀTheyꢀareꢀfabricatedꢀusingꢀISSI'sꢀhigh-performanceꢀ
CMOSꢀtechnology.ꢀThisꢀhighlyꢀreliableꢀprocessꢀcoupledꢀwithꢀ
innovativeꢀcircuitꢀdesignꢀtechniques,ꢀyieldsꢀaccessꢀtimesꢀasꢀ
fastꢀasꢀ45nsꢀwithꢀlowꢀpowerꢀconsumption.
•ꢀ LowꢀStandbyꢀPower:ꢀ10ꢀmWꢀ(typical)ꢀꢀ
ꢀ
CMOSꢀstandby
•ꢀ TTLꢀcompatibleꢀinterfaceꢀlevels
•ꢀ Singleꢀ5Vꢀ ꢀ10%ꢀpowerꢀsupply
Whenꢀ CEꢀ isꢀ HIGHꢀ (deselected),ꢀ theꢀ deviceꢀ assumesꢀ aꢀ
standbyꢀmodeꢀatꢀwhichꢀtheꢀpowerꢀdissipationꢀcanꢀbeꢀreducedꢀ
downꢀwithꢀCMOSꢀinputꢀlevels.
•ꢀ Fullyꢀstaticꢀoperation:ꢀnoꢀclockꢀorꢀrefreshꢀꢀ
required
•ꢀ Availableꢀinꢀ32-pinꢀsTSOP-I,ꢀ32-pinꢀSOPꢀandꢀ
32-pinꢀTSOP-IIꢀpackages
EasyꢀmemoryꢀexpansionꢀisꢀprovidedꢀbyꢀusingꢀChipꢀEnableꢀ
andꢀOutputꢀEnableꢀinputs,ꢀCEꢀandꢀOE.ꢀTheꢀactiveꢀLOWꢀ
WriteꢀEnableꢀ(WE)ꢀcontrolsꢀbothꢀwritingꢀandꢀreadingꢀofꢀtheꢀ
memory.ꢀAꢀdataꢀbyteꢀallowsꢀUpperꢀByteꢀ(UB)ꢀandꢀLowerꢀ
Byteꢀ(LB)ꢀaccess.
•ꢀ Commercial,ꢀIndustrialꢀandꢀAutomotiveꢀtem-
peratureꢀrangesꢀavailable
•ꢀ Lead-freeꢀavailable
TheꢀIS62C5128BLꢀandꢀIS65C5128BLꢀareꢀpackagedꢀinꢀtheꢀ
JEDECꢀstandardꢀ32-pinꢀsTSOP-I,ꢀ32-pinꢀSOPꢀandꢀ32-pinꢀ
TSOP-IIꢀpackages
FUNCTIONAL BLOCK DIAGRAM
512K X 8
MEMORY ARRAY
A0-A18
DECODER
VDD
GND
I/O
DATA
COLUMN I/O
I/O0-I/O7
CIRCUIT
CE
CONTROL
CIRCUIT
OE
WE
Copyright © 2010 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.comꢀ
1
Rev.ꢀ B
06/28/2011