DP83901AV National Semiconductor, DP83901AV Datasheet - Page 56

• Manufacturer Part Number: DP83901AV
• Description: IC CONTROLLR SER NETWK IN 68PLCC
• Manufacturer: National Semiconductor

Specifications of DP83901AV

• Controller Type: Serial Network Interface Controller
• Interface: Serial
• Voltage - Supply: 5V
• Current - Supply: 110mA
• Mounting Type: Surface Mount
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Other names: *DP83901AV

15 0 Switching Characteristics
Note 1 The addition of wait states affects the count of deserialized bytes and is limited to a number of bus clock cycles depending on the bus clock and network
rates The allowable wait states are found in the table below (Assumes 10 Mbit sec data rate )
Table assumes 10 MHz network clock
BSCK (MHz)
Symbol
ews
ewr
10
12
14
16
18
20
8
Byte Transfer
External Wait Setup to T3 0Clock (Note 1)
External Wait Release Time (Note 1)
Max
0
0
1
1
1
2
2
of Wait States
Parameter
Word Transfer
1
1
2
2
3
3
4
AC Specs DP83901A Note All Timing is Preliminary (Continued)
Wait State Insertion
56
The number of allowable wait states in byte mode can be
calculated using
tnw
tbsck
The number of allowable wait states in word mode can be
calculated using
W
W
W
(byte mode)
(word mode)
Min
15
10
e
e
e
e
e
Number of Wait States
Network Clock Period
BSCK Period
4 5 tbsck
2 tbsck
5 tnw
8 tnw
b
b
1
Max
1
TL F 10469 – 40
Units
ns
ns