IS42S32400F
IS45S32400F
4M x 32
128Mb SYNCHRONOUS DRAM
NOVEMBER 2015
OVERVIEW
FEATURES
ISSI'sꢀ128MbꢀSynchronousꢀDRAMꢀꢀachievesꢀhigh-speedꢀ
data transfer using pipeline architecture. All inputs and
outputs signals refer to the rising edge of the clock input.
Theꢀ128MbꢀSDRAMꢀisꢀorganizedꢀinꢀ1Megꢀxꢀ32ꢀbitꢀxꢀ4ꢀ
Banks.ꢀ
•ꢀ Clockꢀfrequency:ꢀ166,ꢀ143,ꢀ133ꢀMHz
•ꢀ Fullyꢀsynchronous;ꢀallꢀsignalsꢀreferencedꢀtoꢀaꢀ
positive clock edge
•ꢀ Internalꢀbankꢀforꢀhidingꢀrowꢀaccess/precharge
•ꢀ SingleꢀPowerꢀsupply:ꢀ3.3Vꢀ+ꢀ0.3V
•ꢀ LVTTLꢀinterface
KEY TIMING PARAMETERS
•ꢀ Programmableꢀburstꢀlengthꢀ
–ꢀ(1,ꢀ2,ꢀ4,ꢀ8,ꢀfullꢀpage)
Parameter
-6
-7
-75E Unit
ClkꢀCycleꢀTimeꢀ
CASꢀLatencyꢀ=ꢀ3ꢀ
CASꢀLatencyꢀ=ꢀ2ꢀ
ꢀꢀ
6ꢀ
10ꢀ
ꢀ
7ꢀ
10ꢀ
ꢀ
ꢀ
–ꢀ
7.5ꢀ
nsꢀ
ns
•ꢀ Programmableꢀburstꢀsequence:ꢀ
Sequential/Interleave
ClkꢀFrequencyꢀ
CASꢀLatencyꢀ=ꢀ3ꢀ
CASꢀLatencyꢀ=ꢀ2ꢀ
ꢀꢀ
166ꢀ
100ꢀ
ꢀ
ꢀ
ꢀ
•ꢀ AutoꢀRefreshꢀ(CBR)
•ꢀ SelfꢀRefresh
143ꢀ
100ꢀ
–ꢀ
133ꢀ
Mhzꢀ
Mhz
AccessꢀTimeꢀꢀfromꢀClockꢀ
CASꢀLatencyꢀ=ꢀ3ꢀ
CASꢀLatencyꢀ=ꢀ2ꢀ
ꢀ
ꢀ
ꢀ
–ꢀ
5.5ꢀ
ꢀ
•ꢀ 4096ꢀrefreshꢀcyclesꢀeveryꢀ16msꢀ(A2ꢀgrade)ꢀorꢀ
64ꢀmsꢀ(Commercial,ꢀIndustrial,ꢀA1ꢀgrade)
5.4ꢀ
6.5ꢀ
5.4ꢀ
6.5ꢀ
nsꢀ
ns
•ꢀ Randomꢀcolumnꢀaddressꢀeveryꢀclockꢀcycle
•ꢀ ProgrammableꢀCASꢀlatencyꢀ(2,ꢀ3ꢀclocks)
•ꢀ Burstꢀread/writeꢀandꢀburstꢀread/singleꢀwriteꢀ
ADDRESS TABLE
Parameter
operations capability
4M x 32
•ꢀ Burstꢀterminationꢀbyꢀburstꢀstopꢀandꢀprechargeꢀ
command
Configuration
1Mꢀxꢀ32ꢀxꢀ4ꢀbanks
Com./Ind. 4Kꢀ/ꢀ64ms
RefreshꢀCount
OPTIONS
A1
A2
4Kꢀ/ꢀ64ms
4Kꢀ/ꢀ16ms
A0 – A11
A0 – A7
•ꢀ Package:ꢀ
86-pinꢀTSOP-IIꢀ
90-ballꢀTF-BGA
RowꢀAddresses
•ꢀ OperatingꢀTemperatureꢀRange:
Commercial (0oC to +70oC)
Column
Addresses
Industrialꢀ(-40oC to +85oC)
BankꢀAddressꢀ
Pins
BA0,ꢀBA1
AutomotiveꢀGrade,ꢀA1ꢀ(-40oC to +85oC)
AutomotiveꢀGrade,ꢀA2ꢀ(-40oC to +105oC)
Autoprecharge
Pins
A10/AP
Copyright © 2015 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time with-
out 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 ap-
plications 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. D
1
10/28/2015