lxt975 Intel Corporation, lxt975 Datasheet - Page 62

• Manufacturer Part Number: lxt975
• Description: Fast Ethernet 10/100 Quad Transceivers
• Manufacturer: Intel Corporation

LXT974/LXT975 — Fast Ethernet 10/100 Quad Transceivers
62
Power Down recovery time
LEDENA setup to LEDCLK falling edge
LEDENA hold from LEDCLK falling edge
LEDDAT setup to LEDCLK falling edge
LEDDAT hold from LEDCLK falling edge
1. Typical values are at 25° C and are for design aid only; not guaranteed and not subject to production testing.
1. Typical values are at 25° C and are for design aid only; they are not guaranteed and not subject to production testing.
Figure 38. Power Down Timing
Table 41. Power Down Timing Parameters
Figure 39. Serial LED Timing
Table 42. Serial LED Timing Parameters
LEDENA
LEDDAT
LEDCLK
Parameter
MDIO,etc
RESET
Parameter
VCC
tena1
tdat1
VCC = 4.75V
Symbol
tena1
tena2
tdat1
tdat2
Sym
t
PDR
tena2
tdat2
Min
Min
15
15
–
5
5
tPDR
Typ
Typ
50
12
21
12
21
1
1
Max
Max
–
–
–
–
–
Datasheet
Units
Units
ms
ns
ns
ns
ns