DP83905AVQB National Semiconductor, DP83905AVQB Datasheet - Page 71

• Manufacturer Part Number: DP83905AVQB
• Description: IC CONTROLR AT/LAN TP IN 160PQFP
• Manufacturer: National Semiconductor
• Series: AT/LANTIC™r

Specifications of DP83905AVQB

• Controller Type: AT, LAN Twisted-Pair Interface Controller
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 100mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 160-BFQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Other names: *DP83905AVQB

8 0 Preliminary Switching Characteristics
Note 1 In 8-bit mode RCS refers to RCS1 only In 16-bit mode RCS refers to both RCS1 and RCS2
Symbol
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
T13
T14
MSA1
Asserted (Note 1)
MSA1
MSRD
MSRD
RCS and MSA1
MSWR Deasserted (Note 1)
MSA1
MSRD
RCS Held after MSRD
Deasserted (Note 1)
RCS and MSA1
MSD0
Read Data Hold from MSRD Deasserted
Write Data Set-Up to MSWR Deasserted
Write Data Held from MSWR Deasserted
Time Between Transfers
Minimum Bus Clock High Time (bch)
Minimum Bus Clock Low Time (bcl)
Minimum Bus Clock Cycle Time (bcyc)
b
b
b
b
b
b
b
15 Valid before RCS
15 Valid before
15 Valid after
15 Valid (Note 1)
WR Asserted
WR Width
WR Deasserted
Memory Support Bus Accesses (for I O port or FIFO transfers)
Description
b
b
15 Valid to
15 Valid to
b
WR
71
Min
105
20
70
10
10
50
10
20
20
50
0
4
Transfers
8-Bit
Max
100
30
Min
105
20
70
10
10
50
10
20
20
50
0
4
Transfers
16-Bit
Max
100
30
TL F 11498 – 53
Units
bcyc
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns