1894K-40LF IDT, 1894K-40LF Datasheet - Page 35

• Manufacturer Part Number: 1894K-40LF
• Description: Ethernet ICs 3.3V 10/100 PHY RMII
• Manufacturer: IDT

Specifications of 1894K-40LF

• Rohs: yes
• Part # Aliases: ICS1894K-40LF

100M MII: Synchronous Transmit Timing
100M MII/100M Stream Interface Synchronous Transmit Timing Diagram
10M MII: Synchronous Transmit Timing
IDT® 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
TXCLK
TXD[3:0]
TXEN
TXER
The table below lists the significant time periods for the 100M MII Interface synchronous transmit timing. The time
periods consist of timings of signals on the following pins:
•
•
•
•
The 100M MII/100M Stream Interface Synchronous Transmit Timing Diagram figure shows the timing diagram for
the time periods.
The table below lists the significant time periods for the 10M MII synchronous transmit timing. The time periods
consist of timings of signals on the following pins:
•
•
•
•
The 10M MII Synchronous Transmit Timing Diagram figure shows the timing diagram for the time periods.
Period
Period
Time
Time
TXCLK
TXD[3:0]
TXEN
TXER
TXCLK
TXD[3:0]
TXEN
TXER
t1
t2
t1
t2
TXD[3:0], TXEN, TXER Setup to TXCLK Rise
TXD[3:0], TXEN, TXER Hold after TXCLK Rise
TXD[3:0], TXEN, TXER Setup to TXCLK Rise
TXD[3:0], TXEN, TXER Hold after TXCLK Rise
Parameter
Parameter
t1
t2
Conditions
Conditions
–
–
–
–
35
Min.
Min.
375
15
0
0
Typ.
Typ.
–
–
–
–
ICS1894-40
Max. Units
Max. Units
–
–
–
–
PHYCEIVER
ns
ns
ns
ns
REV K 022412