KS8721BL TR Micrel Inc, KS8721BL TR Datasheet - Page 27

• Manufacturer Part Number: KS8721BL TR
• Description: IC TXRX PHY 10/100 3.3V 48LQFP
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KS8721BL TR

• Number Of Drivers/receivers: 1/1
• Protocol: MII, RMII
• Voltage - Supply: 2.375 V ~ 2.625 V
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• For Use With: 576-1007 - BOARD EVAL EXPERIMENT KS8721BL
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: KS8721BLTR

Micrel, Inc.
Note:
1.
June 2009
Symbol
t
t
t
t
t
t
t
t
SU1
SU2
HD1
HD2
HD3
CRS1
CRS2
LAT
1BT = 10ns at 100BASE-TX
Parameter
TXD [3:0] Set-Up to TXC High
TXEN Set-Up to TXC High
TXD [3:0] Hold After TXC High
TXER Hold After TXC High
TXEN Hold After TXC High
TXEN High to CRS Asserted Latency
TXEN Low to CRS De-Asserted Latency
TXEN High to TXP/TXM Output (TX Latency)
Table 4. 100BASE-T MII Transmit Timing Parameters
Figure 5. 100BASE-T MII Transmit Timing
27
Min
10
10
0
0
0
Typ
4
4
9
M9999-062509-1.3
Max
KS8721BL/SL
Units
BT
BT
BT
ns
ns
ns
ns
ns
(1)