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DP83256 Datasheet(PDF) 110 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83256
Description  PLAYERa??Device (FDDI Physical Layer Controller)
PDF  144 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83256 Datasheet(HTML) 110 Page - National Semiconductor (TI)

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70 Electrical Characteristics
71 ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VCC
Supply Voltage
b
05
70
V
DCIN
Input Voltage
b
05
VCC a 05
V
DCOUT
Output Voltage
b
05
VCC a 05
V
VCC ESD to other VCC
Maximum Voltage
03
V
Differential
Storage Temperature
b
65
150
C
ECL
Signal Output Current
b
50
mA
ESD Protection
2000
V
72 RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VCC
Supply Voltage
475
525
V
TA
Operating Temperature
0
70
C
FREF
Reference Input Frequency
125 – 50 ppm
125
125 a 50 ppm
MHz
73 RECOMMENDED EXTERNAL COMPONENTS
Symbol
Parameter
Conditions
Min
Typ
Max
Units
XTAL
Crystal Specifications
Center Frequency
125
MHz
Frequency Calibration
b
10
10
ppm
Frequency Stability
Over Temperature
b
10
10
ppm
Aging
Less Than
b
5
5
ppm
Recommended Power Supply Bypassing Capacitor Value
01
m
F
Note
Capacitors should be placed between each supply pair as close to the
device as possible
74 DC ELECTRICAL CHARACTERISTICS
The DC characteristics are specified over the Recommended Operating Conditions unless otherwise specified
DC Electrical Characteristics for All TTL-Compatible Inputs
The following signals are covered PHY Port Request Signals (ARD ARC ARP BRD BRC BRP) Phase Select (PH
SEL)
Reference Select (REF
SEL) Sense Pins (SP) Cascade Start (CS) PMD Transmitter Enable Level (TEL) Device Reset
(ERST) and Control Bus Interface Inputs (R EW ECE CBA)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIH
Input High Voltage
20
V
VIL
Input Low Voltage
08
V
VIC
Input Clamp Voltage
IIN eb18 mA
b
15
V
IIL
Input Low Current
VIN e GND
b
10
m
A
IIH
Input High Current
VIN e VCC
a
10
m
A
110



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