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PC8477B Datasheet(PDF) 38 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC8477B
Description  Advanced Floppy Disk Controller
PDF  54 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC8477B Datasheet(HTML) 38 Page - National Semiconductor (TI)

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60 Device Description
Absolute Maximum Ratings
(Notes 2 and 3)
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Supply Voltage (VCC VCCA)
b
05V to a70V
Supply Differential (
lVCC b VCCAl)
06V
Input Voltage (VI)
b
05V to VCC a 05V
Output Voltage (VO)
b
05V to VCC a 05V
Storage Temperature (TSTG)
b
65 Cto a165 C
Power Dissipation (PD)1W
Lead Temperature (TL)
a
260 C
Soldering (10 seconds)
Recommended Operating
Conditions
Min
Typ
Max
Unit
Supply Voltage (VCC)
45
50
55
V
Operating Temperature(TA)0
a
70
C
ESD Tolerance
2000
V
CZAP e 100 pF
RZAP e 15 kX
(Note 1)
Capacitance TA e 25 C f e 1 MHz
Symbol
Parameters
Min
Typ
Max
Units
CIN
Input Pin Capacitance
5
7
pF
CIN1
Clock Input Capacitance
8
10
pF
CIO
IO Pin Capacitance
10
12
pF
CO
Output Pin Capacitance
6
8
pF
Note 1
Value based on test complying with NSC SOP5-028 human body model ESD testing using the ETS-910 tester
Note 2
Absolute Maximum Ratings are those values beyond which damage to the device may occur
Note 3
Unless otherwise specified all voltages are referenced to ground
61 DC ELECTRICAL CHARACTERISTICS
DC Characteristics
Under Recommended Operating Conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIH
Input High Voltage
20
VCC
V
VIL
Input Low Voltage
b
05
08
V
ICC
VCC Average Supply Current
VIL e 05V VIH e 24V
10
15
mA
(Note 5)
No Loads on Outputs
ICCSB
VCC Quiescent Supply Current
VIL e VSS
in Low Power Mode
VIH e VCC
0500
20
mA
No Loads on Outputs
ICCA
VCCA Average Supply Current
VIL e 05V
(Note 5)
VIH e 24V
7
10
mA
No Loads on Outputs
ICCASB
VCCA Quiescent Supply
VIL e VSS
Current in Low Power Mode
VIH e VCC
550
m
A
No Loads on Outputs
IIL
Input Leakage Current
VIN e VCC
10
m
A
(Note 4)
VIN e VSS
b
10
m
A
OSCILLATOR PIN
(XTAL1CLK)
IOSC
XTAL1 Input Current
VIN e VDD or GND
g
400
m
A
VIH
XTAL1 Input High Voltage
20
V
VIL
XTAL1 Input Low Voltage
08
V
Note 4
The MFM pin is rated for 10 mA b150 mA because of an internal pull-up resistor
Note 5
500 kbs read of ‘‘DB6’’ pattern
38



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