전자부품 데이터시트 검색엔진 |
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STK14C88-LF45I 데이터시트(PDF) 5 Page - Simtek Corporation |
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STK14C88-LF45I 데이터시트(HTML) 5 Page - Simtek Corporation |
5 / 19 page 5 STK14C88 February 2007 Document Control #ML0014 Rev 0.3 SRAM WRITE CYCLES #1 & #2 (VCC = 5.0V ± 10%) e Note j: If W is low when E goes low, the outputs remain in the high-impedance state. Note k: E or W must be ≥ V IH during address transitions. Note l: HSB must be high during SRAM WRITE cycles. SRAM WRITE CYCLE #1: W Controlledk, l SRAM WRITE CYCLE #2: E Controlledk, l NO. SYMBOLS PARAMETER STK14C88-25 STK14C88-35 STK14C88-45 UNITS #1 #2 Alt. MIN MAX MIN MAX MIN MAX 12 tAVAV tAVAV tWC Write Cycle Time 25 35 45 ns 13 tWLWH tWLEH tWP Write Pulse Width 202530 ns 14 tELWH tELEH tCW Chip Enable to End of Write 20 25 30 ns 15 tDVWH tDVEH tDW Data Set-up to End of Write 10 12 15 ns 16 tWHDX tEHDX tDH Data Hold after End of Write 0 0 0 ns 17 tAVWH tAVEH tAW Address Set-up to End of Write 20 25 30 ns 18 tAVWL tAVEL tAS Address Set-up to Start of Write 0 0 0 ns 19 tWHAX tEHAX tWR Address Hold after End of Write 0 0 0 ns 20 tWLQZ i, j tWZ Write Enable to Output Disable 10 13 15 ns 21 tWHQX tOW Output Active after End of Write 5 5 5 ns PREVIOUS DATA DATA OUT E ADDRESS 12 tAVAV W 16 tWHDX DATA IN 19 tWHAX 13 tWLWH 18 tAVWL 17 tAVWH DATA VALID 20 tWLQZ 15 tDVWH HIGH IMPEDANCE 21 tWHQX 14 tELWH DATA IN 12 tAVAV 16 tEHDX 13 tWLEH 19 tEHAX 18 tAVEL 17 tAVEH DATA VALID 15 tDVEH HIGH IMPEDANCE 14 tELEH DATA OUT E ADDRESS W DATA IN |
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