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LAN89218 Datasheet(PDF) 132 Page - Microchip Technology

Part # LAN89218
Description  High-Performance Single-Chip 10/100 Ethernet Controller for Automotive Applications
PDF  148 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN89218 Datasheet(HTML) 132 Page - Microchip Technology

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LAN89218
DS60001255B-page 132
 2008-2015 Microchip Technology Inc.
6.9
EEPROM Timing
The following specifies the EEPROM timing requirements for the LAN89218:
FIGURE 6-8:
EEPROM TIMING
TABLE 6-10:
EEPROM TIMING VALUES
Symbol
Description
Min.
Typ.
Max.
Unit
tckcyc
EECLK Cycle time
1110
1130
ns
tckh
EECLK High time
550
570
ns
tckl
EECLK Low time
550
570
ns
tcshckh
EECS high before rising edge of EECLK
1070
ns
tcklcsl
EECLK falling edge to EECS low
30
ns
tdvckh
EEDIO valid before rising edge of EECLK
(OUTPUT)
550
ns
tckhdis
EEDIO disable after rising edge EECLK (OUT-
PUT)
550
ns
tdsckh
EEDIO setup to rising edge of EECLK (INPUT)
90
ns
tdhckh
EEDIO hold after rising edge of EECLK
(INPUT)
0ns
tckldis
EECLK low to data disable (OUTPUT)
580
ns
tcshdv
EEDIO valid after EECS high (VERIFY)
600
ns
tdhcsl
EEDIO hold after EECS low (VERIFY)
0
ns
tcsl
EECS low
1070
ns
EECLK
EEDIO (OUTPUT)
EEDIO (INPUT)
EECS
tckldis
tcshckh
EEDI (VERIFY)
tckh
tckl
tckcyc
tcklcsl
tcsl
tdvckh tckhdis
tdsckh
tdhckh
tdhcsl
tcshdv



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