dp83932c-20 National Semiconductor Corporation, dp83932c-20 Datasheet - Page 73

• Manufacturer Part Number: dp83932c-20
• Description: Mhz Sonictm Systems-oriented Network Interface Controller
• Manufacturer: National Semiconductor Corporation

7 0 AC and DC Specifications
AC Characteristics
BUS CLOCK TIMING
POWER-ON RESET
NON POWER-ON RESET
Note 1 The reset time is determined by the slower of BSCK or TXC If BSCK
Note 2 These specifications are not tested
Number
T4
T5
T6
T8
Number
T1
T2
T3
USR
USR
Power-On Reset Low (Notes 1 2)
Reset Pulse Width (Notes 1 2)
Bus Clock Low Time
Bus Clock High Time
Bus Clock Cycle Time
k
k
1 0
1 0
Parameter
l
l
Parameter
Setup to RST
Hold from RST
Min
20
20
50
(Continued)
20 MHz
Min
10
10
7
9
Max
20 MHz
l
73
TXC T6 and T8 equal 10 TXCs If BSCK
Max
Min
16
16
40
25 MHz
Min
10
10
6
8
25 MHz
Max
Max
k
13 5
13 5
Min
30
TXC T6 and T8 equal 10 BSCKs (T3)
Min
10
10
33 MHz
5
7
TL F 10492 – 56
33 MHz
Max
Max
TL F 10492 – 57
TL F 10492 – 58
Units
Units
TXC
TXC
ns
ns
ns
ns
ns