dp83902a National Semiconductor Corporation, dp83902a Datasheet - Page 53

• Manufacturer Part Number: dp83902a
• Description: St-nictm Serial Network Interface Controller For Twisted Pair
• Manufacturer: National Semiconductor Corporation

15 0 Switching Characteristics
Note 1 rsrs includes flow-through time of latch
Note 2 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
Note 3 CS may be asserted before of after RA0–3 and SRD since address decode begins when ACK is asserted If CS is asserted after RA0–3 and SRD rackl
is referenced from falling edge of CS
Symbol
rsrs
rsrh
ackdv
rdz
rackl
rackh
Register Select to Read Setup
(Notes 1 3)
Register Select Hold from Read
ACK Low to Valid Data
Read Strobe to Data TRI-STATE (Note 2)
Read Strobe to ACK Low (Note 3)
Read Strobe to ACK High
Parameter
Register Read (Non-Latched ADS0
AC Specs DP83902A Note All Timing is Preliminary (Continued)
53
Min
10
15
0
e
1)
n bcyc
Max
55
70
30
a
30
TL F 11157 – 34
Units
ns
ns
ns
ns
ns
ns