KS8721BT Micrel Inc, KS8721BT Datasheet - Page 27

• Manufacturer Part Number: KS8721BT
• Description: IC TXRX PHY 10/100 TX/FX 48TQFP
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KS8721BT

• Number Of Drivers/receivers: 1/1
• Protocol: MII, RMII
• Voltage - Supply: 2.375 V ~ 2.625 V
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• For Use With: 576-1009 - BOARD EVAL EXPERIMENT KS8721BT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Symbol
t
t
t
t
t
April 2005
KS8721B/BT
BTB
FLPW
PW
CTD
CTC
Parameter
FLP Burst to FLP Burst
FLP Burst Width
Clock/Data Pulse Width
Clock Pulse to Data Pulse
Clock Pulse to Clock Pulse
Number of Clock/Data Pulses per Burst
TX+/TX-
TX+/TX-
Figure 7. Auto-Negotiation/Fast Link Pulse Timing
Table 5. Auto-Negotiation/Fast Link Pulse Timing
Clock
Pulse
FLP
Burst
t
t
PW
FLPW
t
CTD
t
B TB
27
Data
Pulse
t
PW
t
CTC
FLP
Burst
Clock
Pulse
Min
17
8
Data
Pulse
Typ
136
100
16
69
2
Max
24
33
M9999-041405
Micrel, Inc.
Units
ms
ms
ns
µs
µs
µs