DP83902AVLJ National Semiconductor, DP83902AVLJ Datasheet - Page 52
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DP83902AVLJ
Manufacturer Part Number
DP83902AVLJ
Description
IC CTRLR SER NETWORK IN 100PQFP
Manufacturer
National Semiconductor
Datasheet
1.DP83902AVJGNOPB.pdf
(70 pages)
Specifications of DP83902AVLJ
Controller Type
Serial Network Interface Controller
Interface
Serial
Voltage - Supply
4.75 V ~ 5.25 V
Current - Supply
140mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-MQFP, 100-PQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*DP83902AVLJ
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Manufacturer
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15 0 Switching Characteristics
Note 1 ACK is not generated until CS and SRD are low and the ST-NIC has synchronized to the register access The ST-NIC will insert an integral number of Bus
Clock cycles until it is synchronized In Dual Bus systems additional cycles will be used for a local or remote DMA to complete Wait states must be issued to the
CPU until ACK is asserted low
Note 2 CS may be asserted before or after SRD If CS is asserted after SRD rackl is referenced from falling edge of CS CS can be de-asserted concurrently with
SRD or after SRD is de-asserted
Note 3 These limits include the RC delay inherent in our test method These signals typically turn off within 15 ns enabling other devices to drive these lines with
no contention
Symbol
rss
rsh
aswi
ackdv
rdz
rackl
rackh
rsrsl
Register Select Setup to ADS0 Low
Register Select Hold from ADS0 Low
Address Strobe Width In
Acknowledge Low to Data Valid
Read Strobe to Data TRI-STATE (Note 3)
Read Strobe to ACK Low (Notes 1 2)
Read Strobe to ACK High
Register Select to Slave Read Low
Latched RS0–3
Parameter
Register Read (Latched Using ADS0)
AC Specs DP83902A Note All Timing is Preliminary
52
Min
10
13
15
15
10
n bcyc
Max
55
70
30
a
30
TL F 11157 – 33
Units
ns
ns
ns
ns
ns
ns
ns
ns