MEMORY DATABOOK - Al Kossow's Bitsavers

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----------------. DYNAMIC RAM ·MSM41257AAS/RS •AC CHARACTERISTICS (Continued)(Recommended operating conditions unless otherwise noted.)Parameter Symbol UnitMSM41257A- MSM41257A- MSM41257A-10 12 15Min. Max. Min. Max. Min. Max.NotesRefresh counter testcycle time tRTC ns340 375 430 10Refresh counter testRAS pulse widthtTRAS ns 230 10fLS 265 10fLS 320 10fLS 10Refresh counter testCAS precharge time tCPT ns50 60 70 10Notes:2345678An initial pause of 100 fLs is required after power-up followed by any 8 RAS cycles(Example: RAS only) before proper device operation is achieved.The AC characteristics assume at tT = 5 nsVIH (Min.) and VIL (Max.) are reference levels for measuring of input signals. <strong>Al</strong>so transitiontimes are measured between VIH and VIL.Assumes that tRCD ~ tRCD (Max.). If tRCD is greater than the maximum recommendedvalue shown in this table, tRAC will increase by the amount that tRCD exceeds the valueshown.Assumes that tRCD ~ tRCD (Max.).Measured with a load circuit equivalent to 2TTL loads and 100 pF.Operation within the tRCD (Max.) limit insures that tRAC (Max.) can be met. tRCD (Max.)is specified as a reference point only; if tRCD is greater than the specified tRCD (Max.)limit, then access time is controlled exclusively by tCAC.twcs and tCWD are not restrictive operating parameters. They are included in the datasheet as electrical charcteristics only; if twcs ~ twcs (min.), the cycle is an early writecycle and the data out pin will remain open circuit (high impedance) throughout theentire cycle; if tCWD ~ tCWD (min.), the cycle is read-write cycle and the data out willcontain data read from the selected cell; if neither of the above sets of conditions issatisfied the condition of the data out (at access time) is indeterminate.9 Nibble mode cycle.10 CAS before RAS Refresh Counter Test Cycle only.153
• DYNAMIC RAM· MSM41257 AAS/RS .----------------READ CYCLEtRAStRCRASVIH-VIL-CAStRSHVIH-VIL-tCASAddressesWEDOUTVIH-VIL-VIH-VIL -VOH-VOL-I ..~tCAC :1tRACI OPEN I ~~tRCH~RRHvJ f'O"Oata~Don't CareWRITE CYCLE (EARLY WRITE)1RASCASAddressesVIH-vIL-VIH-VIL-VIH-VIL-WEDINVIH-VIL-VIH-VIL-DOUTVOH-VOL-I OPENI~ Don'tCare154
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MEMORYDATABOOK1986
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CONTENTSo IC MEMORY LINE-UP AND TYP
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MSM28201 AASMSM53256RSMSK531000RS
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IC MEMORY LINE-UP AND TYPICALCHARAC
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---------.IC MEMORY LINE-UP AND TYP
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---------I.IC MEMORY LINE-UP AND TY
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----------_IC MEMORY LINE-UP AND TY
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PACKAGINGPACKAGESNo. RS GS JS US YS
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------------------.PACKAGING ••
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oIIIRELIABILITY INFORMATION .......
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I\JOl~rt-ProcessmentAcceptanceof or
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• RELIABILITY INFORMATION ••
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• RELIABILITY INFORMATION ••
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• RELIABILITY INFORMATION .'-----
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D MOS MEMORY HANDLING PRECAUTIONS .
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D EPROM WRITING AND ERASURE .......
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• EPROM WRITING AND ERASURE •
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MASK ROM CUSTOMER PROGRAMSPECIFICAT
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DD MASK ROM DEVELOPMENT FLOWCHART..
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D TERMINOLOGY AND SYMBOLS .........
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.TERMINOLOGYANDSyMBOLS.------------
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• TERMINOLOGY AND SYMBOLS ... ---
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_TERMINOLOGY AND SYMBOLS _._-------
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MOSDYNAMICRAMS
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----------------.... DYNAMIC RAM·
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----------------__ DYNAMIC RAM· MS
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________________... DYNAMIC RAM . M
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----------------... DYNAMIC RAM· M
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----------------... DYNAMIC RAM· M
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_________________ • DYNAMIC RAM·
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--------------------11. DYNAMIC RAM
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----------------... DYNAMIC RAM . M
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----------------__• DYNAMIC RAM'
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• DYNAMIC RAM . MSM3764AS/RS .1--
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• DYNAMIC RAM· MSM3764AS/RS •
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OKI semiconductorMSM3764 AAS/RS65,5
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• DYNAMIC RAM· MSM3764AAS/RS •
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Page 179 and 180: .OVNAMICRAM·MSM41464RS.-----------
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OKI semiconductorMSM411 001 RS10485
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• DYNAMIC RAM· MSM411 001 RS .--
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• DYNAMIC RAM· MSM411001 RS •
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• DYNAMIC RAM· MSM411 001 RS .--
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_ DYNAMIC RAM· MSM411 001 RS ___ -
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• DYNAMIC RAM' MSM411 001 RS •
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• DYNAMIC RAM· MSM411 001 RS .1-
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OKI semiconductor ~----------------
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O __ K __ I __ seMSM514257RS__ rn_I
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• DYNAMIC RAM· MSM37S64ARS/37S64
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_ DYNAMIC RAM· MSM37S64ARS/37S64RS
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_O_K __ I __se_rn_I_C_O_nc:I_U_c_.o
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• DYNAMIC RAM· MSC2301 YS9/KS9 .
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_ DYNAMIC RAM· MSC2301 YS9/KS9 ---
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• DYNAMIC RAM· MSC2301 YS9/KS9
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• DYNAMIC RAM· MSC2304YSS/KSS .1
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.DYNAMICRAM·MSC2304YSS/KSS.-------
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• DYNAMIC RAM· MSC2304YSS/KSS .1
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_______________.... DYNAMIC RAM· M
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---------------..... DYNAMIC RAM·
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----------------1. DYNAMIC RAM· MS
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----------------. DYNAMIC RAM· MSC
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---------------1. DYNAMIC RAM· MSC
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------------------------------___ O
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-----------------11. DYNAMIC RAM·
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MOSSTATICRAMS
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------------------1. STATIC RAM ·M
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-------------------1. STATIC RAM·
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OKI semiconductorMSM2128RS2 KW x 8
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-------------------11. STATIC RAM
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-------------------11. STATIC RAM
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_______.,..--__________-11. STATIC
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-------------------. STATIC RAM 'MS
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OKI semiconductorMSM5128 - 20GSK204
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-----------------. STATIC RAM· MSM
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-----------------. STATIC RAM· MSM
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OKI semiconductorMSM5126RS2048-WORD
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-------------------. STATIC RAM 'MS
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-------------------. STATIC RAM ·M
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------------------. STATIC RAM· MS
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------------------. STATIC RAM· MS
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-----------------11. STATIC RAM· M
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-----------------1. STATIC RAM· MS
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-----------------1. STATIC RAM· MS
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-----------------... STATIC RAM ·M
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o __ K__ I __MSM5188USse_rn_IC_O_nc
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--------------------11. STATIC RAM
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___________________ • STATIC RAM
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-----------------. STATIC RAM' MSM5
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-----------------. STATIC RAM ·MSM
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-----------------. STATIC RAM' MSM5
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----------------1. STATIC RAM· MSM
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-----------------I.STATICRAM·MSM51
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----------------... STATIC RAM· MS
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MOSMASKROMS
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------------------___ • MASK ROM
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-----------------__._ MASK ROM ·MS
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------------------.... MASK ROM . M
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------------------.... MASK ROM . M
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-----------------_____ MASK ROM· M
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-----------------____ MASK ROM . MS
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------------------..... MASK ROM ·
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-----------------_____ MASK ROM· M
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------------------___ MASK ROM· MS
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OKI semiconductorMSM28201AAS1M BIT
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-----------------____ MASK ROM . MS
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OKI semiconductorMSM2764AS8192 x 8
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.EPROM·MSM2764AS •• ----------
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.EPROM·MSM2764AS.I----------------
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OKI semiconductorMSM27128AS16384 x
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.EPROM·MSM27128AS •• ---------
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.EPROM·MSM27128AS •• ---------
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.EPROM·MSM27256AS •• ---------
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.EPROM·MSM27256AS •• ---------
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.EPROM·MSM27512AS •• ---------
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.EPROM·MSM27512AS.--------~-------
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.EPROM·MSM271000AS •.-----------
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.EPROM·MSM271000AS •• --------
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.EPROM·MSM271000AS •• --------
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.EPROM·MSM271024AS.---------------
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.EPROM·MSM271024AS.I--------------
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.EPROM·MSM271024AS •• --------
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.EPROM·MSM27C64AS •• ---------
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_EPROM·MSM27C64AS ___ ------------
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_EPROM·MSM27C64AS_._--------------
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.EPROM·MSM27C128AS .--------------
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.EPROM·MSM27C128AS.I--------------
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.EPROM·MSM27C128AS •• --------
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_EPROM·MSM27C1024AS ___ ----------
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.EPROM·MSM27C1024AS.--------------
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_EPROM·MSM27C1024AS-.-------------
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OKI semiconductorMSM2816ARS2K x 8 B
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.EEPROM·MSM2816ARS.I--------------
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.EEPROM·MSM2816ARS.---------------
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·EEPROM·MSM2816ARS.I-------------
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IIi) CROSS REFERENCE LIST1. DYNAMIC
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....Co)I\JStructureTotalBit§ori_\
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~c.J~NMOSTotalBit1M§StructureOr- N
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.l>e,)Ol§2. STATIC RAMStruc- Total
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.....U)(Xl3. MASK ROM§Or- NumtureB
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~~oNMOSTotaLBit256k512k§StructureO
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m APPLICATIONS64K BIT DYNAMIC RAM A
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• APPLICATIONS •• -----------
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_APPLICATIONS __ -------------_____
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CMOS RAM BATTERY BACK-UPA practical
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MASK ROM KANJI GENERATION MEMORYDES
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_APPLICATIONS _a_------____________
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• APPLICATIONS ... --------------
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