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查询HM514260C供应商 HM514260C Series HM51S4260C Series 262,144-word × 16-bit Dynamic Random Access Memory ADE-203-260A (Z) Rev. 1.0 Jun. 12, 1995 Description The Hitachi HM51(S)4260C is CMOS dynamic RAM or...
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HM514260C, HM51S4260C Series Ordering Information Type No. Access Time Package HM514260CJ-6 60 ns 400-mill 40-pin plastic SOJ (CP-40DA) HM514260CJ-6R 60 ns HM514260CJ-7 70 ns HM514260CJ-8 80 ns HM5142...
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HM514260C, HM51S4260C Series Pin Arrangement HM514260CJ/CLJ Series HM514260CTT/CLTT Series HM51S4260CJ/CLJ Series HM51S4260CTT/CLTT Series CC SS CC SS CC SS CC SS I/O7 I/O8 NC NC NC LCAS NC NC WE UCAS...
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HM514260C, HM51S4260C Series Block Diagram em or rr ay at em or rr ay at I/O us ol um ec od er I/O us ol um ec od er em or rr ay at em or rr ay at em or rr ay at em or rr ay at I/O us ol um ec od er I...
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HM514260C, HM51S4260C Series Operation Mode The HM51(S)4260C series has the following 11 operation modes. 1. Read cycle 2. Early write cycle 3. Delayed write cycle 4. Read- modify-write cycle 5. RAS-o...
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HM514260C, HM51S4260C Series Absolute Maximum Ratings Parameter Symbol Value Unit Voltage on any pin relative to VSS VT –1.0 to +7.0 Supply voltage relative to VSS VCC –1.0 to +7.0 Short circuit outpu...
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HM514260C, HM51S4260C Series DC Characteristics (Ta = 0 to 70°C, VCC = 5 V ±5%, VSS = 0 V) (HM51(S)4260C-6R) (Ta = 0 to 70°C, VCC = 5 V ±10%, VSS = 0 V) (HM51(S)4260C-6/7/8) HM514260C, HM51S4260C -6/-...
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HM514260C, HM51S4260C Series DC Characteristics (Ta = 0 to 70°C, VCC = 5 V ±5%, VSS = 0 V) (HM51(S)4260C-6R) (Ta = 0 to 70°C, VCC = 5 V ±10%, VSS = 0 V) (HM51(S)4260C-6/7/8) (cont) HM514260C, HM51S426...
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HM514260C, HM51S4260C Series AC Characteristics (Ta = 0 to 70°C, VCC = 5 V ±5%, VSS = 0 V) (HM51(S)4260C-6R)*1, *14, *15, *17, *18 (Ta = 0 to 70°C, VCC = 5 V ±10%, VSS = 0 V) (HM51(S)4260C-6/7/8)*1, *...
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HM514260C, HM51S4260C Series Read Cycle HM514260C, HM51S4260C -6/-6R -7 -8 Parameter Symbol Min Max Min Max Min Max Unit Notes Access time from RAS t RAC ns 2, 3 Access time from CAS t CAC ns 3, 4, Ac...
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HM514260C, HM51S4260C Series Read-Modify-Write Cycle HM514260C, HM51S4260C -6/-6R -7 -8 Parameter Symbol Min Max Min Max Min Max Unit Notes Read-modify-write cycle time t RWC ns RAS to WE delay time t...
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HM514260C, HM51S4260C Series Self refresh Mode HM51S4260C -6/-6R -7 -8 Parameter Symbol Min Max Min Max Min Max Unit Notes RAS pulse width (self refresh) t RASS µs 24, 25, RAS precharge time (self ref...
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HM514260C, HM51S4260C Series 22. t CPN and t CP are determined by the time that both UCAS and LCAS are high. 23. When output buffers are enabled once, sustain the low impedance state until valid data ...
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HM514260C, HM51S4260C Series Notes concerning 2CAS control Please do not separate the UCAS/LCAS operation timing intentionally. However skew between UCAS/LCAS are allowed under the following condition...
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HM514260C, HM51S4260C Series Timing Waveforms*27 Read Cycle t RC t RAS t T t RSH t CAS t CRP t RCD t CSH UCAS LCAS t ASR t RAD t RAL t CAH t ASC RAH Address Row Column t RCS t RCH t RRH t AA t OFF1 Hi...
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HM514260C, HM51S4260C Series Early Write Cycle t RC t RAS RAS t RP t RSH t RCD t CAS t CRP t CSH UCAS LCAS t ASR CAHt ASCt RAH Address Row Column t WCS WCH t DS t DH Din Din High-Z OE : H or L
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HM514260C, HM51S4260C Series Delayed Write Cycle t RC t RAS t RP t CSH t CRP t RCD t RSH UCAS t CAS t ASR t ASC t CWL t RWL t RAH t CAH Address Row Column t RCS t WP Din Din t DZC t OEH t ODD t DZO Hi...
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HM514260C, HM51S4260C Series Read-Modify-Write Cycle t RWC t CRP t RCD UCAS LCAS t RAD t ASR t ASC t RAH t CAH Address Row Column t CWL t RCS t CWD t RWL t AWD WE t AA t RWD t CAC t DH t RAC t DZC Hig...
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HM514260C, HM51S4260C Series RAS-Only Refresh Cycle t RAS t RP t T t CRP t CRP t RPC UCAS LCAS t RAH t ASR Address Row High-Z OE, WE : H or L Refresh address : A0 – A8 (AX0 – AX8)
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HM514260C, HM51S4260C Series CAS-Before-RAS Refresh Cycle t RC t RC t RP t RAS t RP t RAS RP t RPC t RPC t CRP t CPN t CSR t CHR t CPN t CSR t CHR UCAS LCAS Address t OFF1 High-Z WE : H or L Do not ex...
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HM514260C, HM51S4260C Series Fast Page Mode Read Cycle t RASC t RP t RHCP RAS t T t CRP t CSH t PC t CASt CPt CASt CPt CASt RCD UCAS LCAS t RAD t CAH t CAH t ASC t ASR t RAH t ASC t ASC t CAH Address ...
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HM514260C, HM51S4260C Series Fast Page Mode Early Write Cycle t RASC t RP t CSH t PC RSH t CRPt CASt CPt CASt CPt CASt RCD UCAS LCAS t ASC t CAH t ASC t CAH t ASR t RAH t ASC t CAH Address Row Column ...
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HM514260C, HM51S4260C Series Fast Page Mode Delayed Write Cycle t RASC t RP t CSH t RSH t T t PC t CRP t CASt RCD t CP t CAS t CP t CAS UCAS LCAS t ASR t ASC t CAH t ASC t CAH t RAH t ASC t CWL t CAH ...
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HM514260C, HM51S4260C Series Fast Page Mode Read-Modify-Write Cycle t RASC t RP t RCD t PCM tt CP CRP t RAD t RAH t CAH t ASR CAH CAHt t ASC ASC Address Column Column Column Row CWL tt CPWtt CWL AWD C...
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HM514260C, HM51S4260C Series Self Refresh Cycle t RP t RASS t RPC t CRP t CPN t CSR t CHS UCAS LCAS Address t OFF1 High-Z WE, OE : H or L The low self refresh current is achieved by introducing extrem...
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HM514260C, HM51S4260C Series Package Dimensions HM51(S)4260CJ/CLJ Series (CP-40DA) Unit: mm 25.80 26.16 Max 1.30 Max
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HM514260C, HM51S4260C Series HM51(S)4260CTT/CLTT Series (TTP44/40DB) Unit: mm 18.41 18.81 Max 1. ax 1.005 Max
