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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMP93CS41 датащи(PDF) 213 Page - Toshiba Semiconductor |
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TMP93CS41 датащи(HTML) 213 Page - Toshiba Semiconductor |
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213 / 248 page  TMP93CS40/TMP93CS41 2004-02-10 93CS40-211 4.3 AC Characteristics (1) VCC = 5 V ± 10% Variable 16 MHz 20 MHz No. Parameter Symbol Min Max Min Max Min Max Unit 1 Osc. period ( = X) tOSC 50 31250 62.5 50 ns 2 CLK pulse width tCLK 2x − 40 85 60 ns 3 A0 to A23 valid → CLK hold tAK 0.5x − 20 11 5 ns 4 CLK valid → A0 to A23 hold tKA 1.5x − 70 24 5 ns 5 A0 to A15 valid → ALE fall tAL 0.5x − 15 16 10 ns 6 ALE fall → A0 to A15 hold tLA 0.5x − 20 11 5 ns 7 ALE high pulse width tLL x − 40 23 10 ns 8 ALE fall → RD / WR fall tLC 0.5x − 25 6 0 ns 9 RD / WR rise → ALE rise tCL 0.5x − 20 11 5 ns 10 A0 to A15 valid → RD / WR fall tACL x − 25 38 25 ns 11 A0 to A23 valid → RD / WR fall tACH 1.5x − 50 44 25 ns 12 RD / WR rise → A0 to A23 hold tCA 0.5x − 25 6 0 ns 13 A0 to A15 valid → D0 to D15 input tADL 3.0x − 55 133 95 ns 14 A0 to A23 valid → D0 to D15 input tADH 3.5x − 65 154 110 ns 15 RD fall → D0 to D15 input tRD 2.0x − 60 65 40 ns 16 RD low pulse width tRR 2.0x − 40 85 60 ns 17 RD rise → D0 to D15 hold tHR 0 0 0 ns 18 RD rise → A0 to A15 output tRAE x − 15 48 35 ns 19 WR low pulse width tWW 2.0x − 40 85 60 ns 20 D0 to D15 valid → WR rise tDW 2.0x − 55 70 45 ns 21 WR rise → D0 to D15 hold tWD 0.5x − 15 16 10 ns 22 A0 to A23 valid → WAIT input tAWH 3.5x − 90 129 85 ns 23 A0 to A15 valid → WAIT input tAWL 3.0x − 80 108 70 ns 24 RD / WR fall → WAIT hold tCW 2.0x + 0 125 100 ns 25 A0 to A23 valid → Port input tAPH 2.5x − 120 36 5 ns 26 A0 to A23 valid → Port hold tAPH2 2.5x + 50 206 175 ns 27 WR rise → Port valid tCP 200 200 200 ns 28 A0 to A23 valid → RAS fall tASRH 1.0x − 40 23 10 ns 29 A0 to A15 valid → RAS fall tASRL 0.5x − 15 16 10 ns 30 RAS fall → D0 to D15 input tRAC 2.5x − 70 86 55 ns 31 RAS fall → A0 to A15 hold tRAH 0.5x − 15 16 10 ns 32 RAS low pulse width tRAS 2.0x − 40 85 60 ns 33 RAS high pulse width tRP 2.0x − 40 85 60 ns 34 CAS fall → RAS rise tRSH 1.0x − 40 23 10 ns 35 RAS rise → CAS rise tRSC 0.5x − 25 6 0 ns 36 RAS fall → CAS fall tRCD 1.0x − 40 23 10 ns 37 CAS fall → D0 to D15 input tCAC 1.5x − 65 29 10 ns 38 CAS low pulse width tCAS 1.5x − 30 64 40 ns AC measuring conditions • Output level: High 2.2 V/Low 0.8 V, CL = 50 pF (However, CL = 100 pF for AD0 to AD15, A0 to A23, ALE, RD , WR , HWR , W R/ , CLK, RAS , 0 CAS to 2 CAS ) • Input level: High 2.4 V/Low 0.45 V (AD0 to AD15) High 0.8 × VCC/Low 0.2 × VCC (except for AD0 to AD15) (1 + N) WAIT mode (1 + N) WAIT mode (1 + N) WAIT mode |
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