KSZ8721SL TR Micrel Inc, KSZ8721SL TR Datasheet - Page 27

• Manufacturer Part Number: KSZ8721SL TR
• Description: IC TXRX PHY 10/100 3.3V 48SSOP
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KSZ8721SL TR

• Number Of Drivers/receivers: 1/1
• Protocol: IEEE 802
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1630 - BOARD EVALUATION FOR KSZ8721SL
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1031-2

Symbol
May 2004
KS8721BL/SL
t
t
t
t
t
t
t
t
P
WL
WH
SU
HD
RLAT
CRS1
CRS2
Parameter
RXC Period
RXC Pulse Width
RXC Pulse Width
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
CRS to RXD Latency, 4B or 5B Aligned
“Start of Stream” to CSR Asserted
“End of Stream” to CSR De-Asserted
RX+/RX-
CRS
RXDV
RXD[3:0]
RXER
RXC
Table 5. 100BASE-T MII Receive Timing Parameters
Start of
Stream
Figure 6. 100BASE-T MII Receive Timing
t
CRS1
t
RLAT
t
SU
27
t
HD
End of
Stream
t
WL
t
t
t
P
CRS2
WH
Min
20
20
1
Typ
140
170
40
20
20
2
M9999-051704
Max
3
Micrel
Units
BT
ns
ns
ns
ns
ns
ns
ns