DP83816AVNG/NOPB National Semiconductor, DP83816AVNG/NOPB Datasheet - Page 9

• Manufacturer Part Number: DP83816AVNG/NOPB
• Description: IC MEDIA ACCESS CTRLR 144-LQFP
• Manufacturer: National Semiconductor

Specifications of DP83816AVNG/NOPB

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 144-LQFP
• Mounting Type: Surface Mount
• For Use With: DP83816-MAAP - BOARD EVALUATION DP83816
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *DP83816AVNG; *DP83816AVNG/NOPB; DP83816AVNG

2.0 Pin Description
Clock Interface
LED Interface
Serial EEPROM Interface
Note: DP83816 supports NMC93C46 for the EEPROM device.
X1
X2
LEDACTN/MA0
LED100N/MA2
LED10N/MA1
EESEL
EECLK/MA4
EEDI/MA3
EEDO/MD4
MD1/CFGDISN
Symbol
Symbol
Symbol
LQFP Pin
LQFP Pin
LQFP Pin
No(s)
No(s)
No(s)
142
144
143
128
138
133
17
18
2
1
(Continued)
Dir
Dir
Dir
I/O
O
O
O
O
O
O
O
I
I
Crystal/Oscillator Input: This pin is the primary clock reference input for the
DP83816 and must be connected to a 25 MHz 0.005% (50ppm) clock source. The
DP83816 device supports either an external crystal resonator connected across
pins X1 and X2, or an external CMOS-level oscillator source connected to pin X1
only.
Crystal Output: This pin is used in conjunction with the X1 pin to connect to an
external 25 MHz crystal resonator device. This pin must be left unconnected if an
external CMOS oscillator clock source is utilized. For more information see the
definition for pin X1.
TX/RX Activity: This pin is an output indicating transmit/receive activity. This pin is
driven low to indicate active transmission or reception, and can be used to drive a
low current LED (<6 mA). The activity event is stretched to a minimum duration of
approximately 50 ms.
100 Mb/s Link: This pin is an output indicating the 100 Mb/s Link status. This pin is
driven low to indicate Good Link status for 100 Mb/s operation, and can be used to
drive a low current LED (<6 mA).
10 Mb/s Link: This pin is an output indicating the 10 Mb/s Link status. This pin is
driven low to indicate Good Link status for 10 Mb/s operation, and can be used to
drive a low current LED (<6 mA).
EEPROM Chip Select: This signal is used to enable an external EEPROM device.
EEPROM Clock: During an EEPROM access (EESEL asserted), this pin is an
output used to drive the serial clock to an external EEPROM device.
EEPROM Data In: During an EEPROM access (EESEL asserted), this pin is an
output used to drive opcode, address, and data to an external serial EEPROM
device.
EEPROM Data Out: During an EEPROM access (EESEL asserted), this pin is an
input used to retrieve EEPROM serial read data.
This pin has an internal weak pull up.
Configuration Disable: When pulled low at power-on time, disables load of
configuration data from the EEPROM. Use 1 KΩ to ground to disable configuration
load.
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Description
Description
Description
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