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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPD70F3003A датащи(PDF) 22 Page - NEC |
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UPD70F3003A датащи(HTML) 22 Page - NEC |
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22 / 44 page  µPD70F3003A, 70F3025A 22 Data Sheet U13189EJ3V0DS00 (5) Read timing (1/2) Parameter Symbol Condition 25 MHz Model 33 MHz Model Unit MIN. MAX. MIN. MAX. CLKOUT ↑→ address delay time <20> tDKA 3 20 3 20 ns CLKOUT ↑→ R/W, UBEN, LBEN delay time <78> tDKA2 –2 +13 –2 +13 ns CLKOUT ↑→ address float delay time <21> tFKA 3 15 3 15 ns CLKOUT ↓→ ASTB delay time <22> tDKST 3 15 3 15 ns CLKOUT ↓→ DSTB delay time <23> tDKD 3 15 3 15 ns Data input setup time (vs. CLKOUT ↑) <24> tSIDK 55 ns Data input hold time (vs. CLKOUT ↑) <25> tHKID 55 ns WAIT setup time (vs. CLKOUT ↓) <26> tSWTK 55 ns WAIT hold time (vs. CLKOUT ↓) <27> tHKWT 55 ns Address hold time (vs. CLKOUT ↑) <28> tHKA 00 ns Address setup time (vs. ASTB ↓) <29> tSAST –40 °C ≤ TA ≤ +70°C 0.5 T – 10 0.5 T – 10 ns 70 °C < TA ≤ 85°C 0.5 T – 12 0.5 T – 12 ns Address hold time (vs. ASTB ↓) <30> tHSTA 0.5 T – 10 0.5 T – 10 ns DSTB ↓→ address float delay time <31> tFDA 00 ns Data input setup time (vs. address) <32> tSAID –40 °C ≤ TA ≤ +70°C (2 + n) T – 22 (2 + n) T – 22 ns 70 °C < TA ≤ 85°C (2 + n) T – 25 (2 + n) T – 25 ns Data input setup time (vs. DSTB ↓) <33> tSDID –40 °C ≤ TA ≤ +70°C (1 + n) T – 20 (1 + n) T – 20 ns 70 °C < TA ≤ 85°C (1 + n) T – 24 (1 + n) T – 24 ns ASTB ↓→ DSTB ↓ delay time <34> tDSTD 0.5 T – 10 0.5 T – 10 ns Data input hold time (vs. DSTB ↑) <35> tHDID 00 ns DSTB ↑→ address output delay time <36> tDDA (1 + i) T (1 + i) T ns DSTB ↑→ ASTB ↑ delay time <37> tDDSTH 0.5 T – 10 0.5 T – 10 ns DSTB ↑→ ASTB ↓ delay time <38> tDDSTL (1.5 + i) T – 10 (1.5 + i) T – 10 ns DSTB width, low <39> tWDL –40 °C ≤ TA ≤ +70°C (1 + n) T – 10 (1 + n) T – 10 ns 70 °C < TA ≤ 85°C (1 + n) T – 13 (1 + n) T – 13 ns ASTB width, high <40> tWSTH T – 10 T – 10 ns WAIT setup time (vs. address) <41> tSAWT1 n ≥ 1, –40°C ≤ TA ≤ +70°C 1.5 T – 20 1.5 T – 20 ns n ≥ 1, 70°C < TA ≤ 85°C 1.5 T – 24 1.5 T – 24 ns <42> tSAWT2 n ≥ 1, –40°C ≤ TA ≤ +70°C (1.5 + n) T – 20 (1.5 + n) T – 20 ns n ≥ 1, 70°C < TA ≤ 85°C (1.5 + n) T – 24 (1.5 + n) T – 24 ns WAIT hold time (vs. address) <43> tHAWT1 n ≥ 1 (0.5 + n) T (0.5 + n) T ns <44> tHAWT2 n ≥ 1 (1.5 + n) T (1.5 + n) T ns WAIT setup time (vs. ASTB ↓) <45> tSSTWT1 n ≥ 1, –40°C ≤ TA ≤ +70°C T – 18 T – 18 ns n ≥ 1, 70°C < TA ≤ 85°C T – 20 T – 20 ns <46> tSSTWT2 n ≥ 1 (1 + n) T – 15 (1 + n) T – 15 ns WAIT hold time (vs. ASTB ↓) <47> tHSTWT1 n ≥ 1nT nT ns <48> tHSTWT2 n ≥ 1 (1 + n) T (1 + n) T ns Remarks 1. T = tCYK 2. n indicates the number of wait clocks inserted in the bus cycle. The sampling timing differs when the programmable wait state is inserted. 3. i indicates the number of idle states (0 or 1) t be inserted in the read cycle. 4. Be sure to observe at least one of data input hold times tHKID (<25>) and tHDID (<35>). |
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