82583V Datasheet, PDF (30/374 Pages) Intel Corporation – Intel® 82583V GbE Controller

82583V GbE Controller—Electrical Specifications
3.6
Flash AC Specifications
The 82583V is designed to support a serial flash. Applicable over the recommended
operating range from Ta = -40 °C to +85 °C, VCC3P3 = 3.3 Vdc, Cload = 1 TTL Gate
and 16 pF (unless otherwise noted).
Symbol
Parameter
Min
Typ
Max
Units
Note
t_SCK
SCK clock frequency
0
15.625
20
MHz
[1]
t_RI
Input rise time
2.5
20
ns
t_FI
Input fall time
2.5
20
ns
t_WH
SCK high time
20
32
ns
[2]
t_WL
SCK low time
20
32
ns
[2]
t_CS
CS high time
25
ns
t_CSS
CS setup time
25
ns
t_CSH
CS hold time
25
ns
t_SU
Data-in setup time
5
ns
t_H
Data-in hold time
5
ns
t_V
Output valid
20
ns
t_HO
Output hold time
0
ns
t_DIS
Output disable time
100
ns
Notes:
1. Clock is 62.5 MHz divided by 4. In bit banging mode maximum allowable frequency is 20 MHz.
2. 45% to 55% duty cycle.
VIH
CS _VIL
VIH
Sck
VIL
VIH
SI
VIL
SO ^VOH HI-Z
VOL
t _CSS
t_WH
t _WL
t_{SU t H}
VALID IN
t _val
Figure 5. Flash Timing Diagram
t_CS
t _CSH
t _HO
t _DIS
HI-Z
30