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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST7632 датащи(PDF) 76 Page - Sitronix Technology Co., Ltd. |
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ST7632 датащи(HTML) 76 Page - Sitronix Technology Co., Ltd. |
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76 / 96 page  ST7632 Ver 1.7 76/96 2006/08/15 (VDD = 2.8 V , Ta =-30 °C ~85°C, die ) Rating Item Signal Symbol Condition Min. Max. Units Address hold time tAH8 30 — Address setup time tAW8 30 — System cycle time A0 tCYC8 470 — Enable L pulse width (WRITE) tCCLW 200 — Enable H pulse width (WRITE) WR tCCHW 280 — Enable L pulse width (READ) tCCLR 80 — Enable H pulse width (READ) RD tCCHR 190 — WRITE Data setup time tDS8 280 — WRITE Address hold time tDH8 30 — READ access time tACC8 CL = 100 pF — 140 READ Output disable time D0 to D7 tOH8 CL = 100 pF — 100 ns (VDD = 2.0V , Ta =-30 °C ~85°C, die ) Rating Item Signal Symbol Condition Min. Max. Units Address hold time tAH8 30 — Address setup time tAW8 30 — System cycle time A0 tCYC8 880 — Enable L pulse width (WRITE) tCCLW 340 — Enable H pulse width (WRITE) WR tCCHW 540 — Enable L pulse width (READ) tCCLR 170 — Enable H pulse width (READ) RD tCCHR 360 WRITE Data setup time tDS8 420 — WRITE Address hold time tDH8 30 — READ access time tACC8 CL = 100 pF — 240 READ Output disable time D0 to D7 tOH8 CL = 100 pF — 200 ns *1 The input signal rise time and fall time (tr, tf) is specified at 15 ns or less. When the system cycle time is extremely fast, (tr +tf) ≦ (tCYC8 – tCCLW – tCCHW) for (tr + tf) ≦ (tCYC8 – tCCLR – tCCHR) are specified. *2 All timing is specified using 20% and 80% of VDD as the reference. *3 tCCLW and tCCLR are specified as the overlap between /CS being “L” and WR and RD being at the “L” level. |
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