DP8390 NSC [National Semiconductor], DP8390 Datasheet - Page 40

• Manufacturer Part Number: DP8390
• Description: NIC Network Interface Controller
• Manufacturer: NSC [National Semiconductor]

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 or after RA0–3 and SRD since address decode begins when ACK is asserted If CS is asserted after RA0-3 and SRD rack1
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
(Continued)
40
Min
10
15
0
e
1)
n bcyc
Max
55
70
30
a
30
TL F 8582– 77
Units
ns
ns
ns
ns
ns
ns