LAN9420-NU Standard Microsystems (SMSC), LAN9420-NU Datasheet - Page 165
LAN9420-NU
Manufacturer Part Number
LAN9420-NU
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LAN9420-NU.pdf
(170 pages)
Specifications of LAN9420-NU
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
128
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LAN9420-NU
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
LAN9420-NU
Manufacturer:
SMSC
Quantity:
20 000
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Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
SMSC LAN9420/LAN9420i
5.8
SYMBOL
EEDI (VERIFY)
t
t
t
t
t
t
t
cshckh
t
t
t
ckhdis
dvckh
dsckh
dhckh
cshdv
cklcsl
ckldis
ckcyc
dhcsl
t
t
t
ckh
ckl
csl
EEPROM Timing
EECLK
EEDO
The following specifies the EEPROM timing requirements for LAN9420/LAN9420i:
EECS
EEDI
EECLK Cycle time
EECLK High time
EECLK Low time
EECS high before rising edge of EECLK
EECLK falling edge to EECS low
EEDIO valid before rising edge of EECLK
(OUTPUT)
EEDIO disable after rising edge EECLK
(OUTPUT)
EEDIO setup to rising edge of EECLK (INPUT)
EEDIO hold after rising edge of EECLK
(INPUT)
EECLK low to data disable (OUTPUT)
EEDIO valid after EECS high (VERIFY)
EEDIO hold after EECS low (VERIFY)
EECS low
DESCRIPTION
t
cshckh
Table 5.12 EEPROM Timing Values
t
cshdv
Figure 5.4 EEPROM Timing
t
ckh
t
t
dsckh
ckcyc
DATASHEET
t
dvckh
t
ckl
165
t
ckhdis
t
dhckh
1070
1070
1110
MIN
550
550
550
550
580
30
90
0
0
t
ckldis
TYP
t
cklcsl
t
dhcsl
t
csl
Revision 1.4 (12-17-08)
MAX
1130
570
570
600
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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