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IC62VV51216LL-100TI Datasheet(PDF) 8 Page - Integrated Circuit Solution Inc |
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IC62VV51216LL-100TI Datasheet(HTML) 8 Page - Integrated Circuit Solution Inc |
8 / 12 page 8 Integrated Circuit Solution Inc. LPSR018-0B 9/02/2002 IC62VV51216L IC62VV51216LL WRITE CYCLE SWITCHING CHARACTERISTICS(1,2) (Over Operating Range) -70 -100 Symbol Parameter Min. Max. Min. Max Unit tWC Write Cycle Time 70 — 100 — ns tSCE CE1 Low and CE2 HIGH to Write End 65 — 80 — ns tAW Address Setup Time to Write End 65 — 80 — ns tHA Address Hold from Write End 0 — 0 — ns tSA Address Setup Time 0 — 0 — ns tPWB LB, UB Valid to End of Write 60 — 80 — ns tPWE WE Pulse Width 55 — 80 — ns tSD Data Setup to Write End 30 — 40 — ns tHD Data Hold from Write End 0 — 0 — ns tHZWE(3) WE LOW to High-Z Output — 30 — 40 ns tLZWE(3) WE HIGH to Low-Z Output 5 — 5 — ns Notes: 1. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 0.9V, input pulse levels of 0.4V to 1.4V and output loading specified in Figure 1. 2. The internal write time is defined by the overlap of CE1 LOW, and UB or LB, WE LOW, and CE2 HIGH All signals must be in valid states to initiate a Write, but any one can go inactive to terminate the Write. The Data Input Setup and Hold timing are referenced to the rising or falling edge of the signal that terminates the Write. 3. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested. DATA UNDEFINED t WC VALID ADDRESS t SCE t PWE t AW t HA HIGH-Z t PBW t HD t SA t HZWE ADDRESS CE1 UB, LB WE DOUT DIN CE2 DATAIN VALID t LZWE t SD AC WAVEFORMS WRITE CYCLE NO. 1(1,2) (CE1 or CE2, Controlled, OE = HIGH or LOW) Notes: 1. WRITE is an internally generated signal asserted during an overlap of the WE, CE1 = VIL, CE2 = VIH and at least one of the LB and UB inputs being in the LOW state. |
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