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PC87306 Datasheet(PDF) 93 Page - National Semiconductor (TI) |
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PC87306 Datasheet(HTML) 93 Page - National Semiconductor (TI) |
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93 / 110 page  120 Electrical Characteristics (Continued) 121 DC ELECTRICAL CHARACTERISTICS (Continued) 1211 Microprocessor Parallel Port and IDE Interface Pins Symbol Parameter Conditions Min Max Units VOH Output High Voltage IOH eb15 mA on 24 V D0 – 7 IDED7 IRQ3 – 7 DRQ IOH eb6mAon DTR RTS SOUT MFM DRATE CSOUT IDEHI IDELO HCS0 HCS1 CS0 CS1 VOL Output Low Voltage IOL e 24 mA on 04 V D0 – 7 IDED7 IRQ3 – 7 IRQ8 DRQ ZWS IOCHRDY IOL e 12 mA on DTR RTS SOUT HCS IDEHI IDELO IOL e 6mAon DRATE CS0 CS1 IOZ Output TRI-STATE Leakage VIN e VDD 50 m A Current (D7 – 0 IRQ3 – 7 DRQ) VIN e VSS b 50 m A Note 1 Pins IOCHRDY and ZWS are open drain pins 1212 Disk Interface Pins Symbol Parameter Conditions Min Typ Max Units VH Input Hysteresis 250 mV VOH Output High Voltage (Note 1) IOH eb4 mA 24 V VOL Output Low Voltage IOL e 40 mA 04 V ILKG Output High Leakage Current VIN e VDD 10 m A (Note 1) VIN e VSS b 10 m A Note 1 VOH and ILKG for the disk interface pins are valid for CMOS buffered outputs only 1213 Oscillator Pin (X1) Symbol Parameter Conditions Min Typ Max Units VIH X1 Input High Voltage 20 V IXLKG X1 Leakage VIN e VDD 400 m A VIN e VSS b 400 m A 1214 Parallel Port Pins Symbol Parameter Conditions Min Typ Max Units IOH High Level Output Current (Note 1) VOH e 24V 12 mA IOL Low Level Output Current VOL e 04V 12 mA Note 1 AFD INIT SLIN and STB are open drain pins when the PC87306 parallel port is operating in one of the following modes Compatible Extended EPP17 ECP mode 0 or 1 or ECP mode 2 if PCR1 e 0 47 kX resistors should be used 1215 GPIO Pins Symbol Parameter Conditions Min Typ Max Units VOL Output Low Voltage (Note 1) IOL e 20 mA 04 V Note 1 GPIO pins are open drain outputs with internal pull-up resistors between 10 and 26 kX 93 |
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