82551IT — Networking Silicon
11.4.2.4
EEPROM Interface Timings
The 82551IT is designed to support a standard64x16 or 256x16 serial EEPROM. Table 60 provides
the timing parameters for the EEPROM interface signals. The timing parameters are shown in
Figure 25.
Table 60. EEPROM Timing Parameters
Symbol
Parameter
Min
Max
Units
Notes
EEPROM tcss
= 50 ns
T51 tECSS
T52 tECSH
T53 tEDIS
T54 tEDIH
T55 tECS
Delay from EECS High to EESK High
Delay from EESK Low to EECS Low
Setup Time of EEDI to EESK
Hold Time of EEDI after EESK
EECS Low Time
300
ns
EEPROM tcsh
= 0 ns
30
ns
ns
ns
ns
EEPROM tdis
= 150 ns
300
300
750
EEPROM tdih
= 150 ms
EEPROM tcs =
250 ns
Figure 25. EEPROM Timings
EECS
T51
T52
FLA15EESK
FLA13EEDI
T53
T54
86
Datasheet
INTEL [ INTEL ]
