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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PC87322VF датащи(PDF) 64 Page - National Semiconductor (TI) |
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PC87322VF датащи(HTML) 64 Page - National Semiconductor (TI) |
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64 / 84 page  90 Device Description (Continued) DC CHARACTERISTICS Under Recommended Operating Conditions (Continued) Symbol Parameter Conditions Min Typ Max Units MICROPROCESSOR PARALLEL PORT AND IDE INTERFACE PINS VOH Output High Voltage IOH eb15 mA on 24 V D0 – D7 IDED7 IRQ3 – IRQ7 DRQ IOH eb6mAon PD0 – PD7 DTR RTS SOUT MFM DRATE CSOUT IDEHI IDELO HCS VOL Output Low Voltage IOL e 24 mA on 04 V D0 – D7 IDED7 IRQ3 – IRQ7 DRQ ZWS IOCHRDY MFM CSOUT IOL e 16 mA on PD0 – PD7 IOL e 12 mA on DTR RTS SOUT HCS AFD INIT SLIN STB (Note 6) IOL e 6mAon DRATE IDEHI IDELO IOZ Input TRI-STATE Leakage Current VIN e VDD 50 m A (D7 – D0 IRQ3 – IRQ7 DRQ) VIN e VSS b 50 DISK INTERFACE PINS (Note 5) VH Input Hysteresis 250 mV VOH Output High Voltage (Note 7) IOH eb4 mA 24 V VOL Output Low Voltage IOL e 40 mA 04 V ILKG Output High Leakage Current (Note 7) VIN e VDD 10 m A VIN e VSS b 10 OSCILLATOR PIN (XTAL1CLK) VIH XTAL1 Input High Voltage 20 V VIL XTAL2 Input Low Voltage 04 V IXLKG XTAL1 Leakage VIN e VDD 400 m A VIN e VSS b 400 Note 5 When PPM is active and FDC is selected via the parallel port pins the parallel port pins behave as the other Disk Interface pins If FDC is not selected (PNF e 1) or PPM is not active the parallel port pins behave normally Note 6 The printer control pinsAFD INIT SLIN STB are open drain pins Use a 47 kX pull-up resistor Note 7 VOH for the disk interface pins is valid for CMOS buffered outputs only 64 |
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