DP83257VF National Semiconductor, DP83257VF Datasheet - Page 109

• Manufacturer Part Number: DP83257VF
• Description: IC FDDI LAYER CTRLR 160PQFP
• Manufacturer: National Semiconductor

Specifications of DP83257VF

• Controller Type: physical layer controller
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 160-BFQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Interface: -
• Other names: *DP83257VF

V
GND ANALOG
V
GND CORE
V
GND ECL
V
GND ESD
V
GND IO
Symbol
N C
RES 0
RES 1
CC
CC
CC
CC
CC
6 0 Signal Descriptions
POWER AND GROUND
All power pins should be connected to a single
connected to a common 0V ground supply Bypassing and filtering requirements are given in a separate User Information
Document
SPECIAL CONNECT PINS
These are pins that have special connection requirements
No Connect (N C) pins should not be connected to anything This means not to power not to ground and not to each other
Reserved 0 (RES 0) pins must be connected to ground These pins are not used to supply device power so they do not need
to be filtered or bypassed
Reserved 1 (RES 1) pins must be connected to power These pins are not used to supply device power so they do not need
to be filtered or bypassed
Symbol
ANALOG
CORE
ECL
ESD
IO
38 39
40 41 42 43 44
79
80 81 87
121 122 123 124 125
126 127
149
150 151 152 153 154
155 156
28 29
30 31
84 85 86
90 91 92 93
136
137
131 158
130 157
16 105
17 104
Pin
52 57
58 72
Pin
71 89
140
139
32
33
88
47
48
I O
Power Positive 5V power supply for the PLAYER
Ground Power supply return for the PLAYER
Power Positive 5V power supply for the core PLAYER logic gates
Ground Power supply return for the core PLAYER logic gates
Power Positive 5V power supply for the PLAYER
Ground Power supply return for the PLAYER
Power Positive 5V power supply for the PLAYER
Ground Power supply return for the PLAYER
Power Positive 5V power supply for the input output buffers
Ground Power supply return for the input output buffers
I O
(Continued)
No Connect Pins should not be connected to anything This means not to power not
to ground and not to each other
Reserved 0 Pins must be connected to ground These pins are not used to supply
device power so they do not need to be filtered or bypassed
Reserved 1 Pins must be connected to power These pins are not used to supply
device power so they do not need to be filtered or bypassed
a
5V power supply using the recommended filtering All ground pins should be
109
Description
Description
a
a
a
device’s CGM VCO
device’s ECL logic gates
device’s ESD protection circuitry
a
a
a
device’s CGM VCO
device’s ECL logic gates
device’s ESD protection circuitry