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PC87322VF Scheda tecnica(PDF) 64 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte PC87322VF
Spiegazioni elettronici  Floppy Disk Controller with Dual UARTs, Enhanced Parallel Port, and IDE Interface
PDF  84 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87322VF Scheda tecnica(HTML) 64 Page - National Semiconductor (TI)

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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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