KSZ8721BL Micrel Inc, KSZ8721BL Datasheet - Page 26

• Manufacturer Part Number: KSZ8721BL
• Description: IC TXRX PHY 10/100 3.3V 48-LQFP
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KSZ8721BL

• Number Of Drivers/receivers: 1/1
• Protocol: MII, RMII
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Data Rate: 100Mbps
• No. Of Ports: 1
• Ethernet Type: IEEE 802.3u
• Supply Current: 151mA
• Supply Voltage Range: 3.3V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 48
• Interface Type: MII, RMII
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1627 - BOARD EVALUATION FOR KSZ8721BMC576-1626 - BOARD EVALUATION FOR KSZ8721BL
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1028-5; 576-1511-5; 576-1511-5; KSZ8721BL

KS8721BL/SL
Symbol
M9999-051704
t
t
t
t
t
t
t
t
SU1
SU2
HD1
HD2
HD3
CRS1
CRS2
LAT
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 TX+/TX– Output (TX Latency)
TXC
TXEN
TXD[3:0],
TXER
CRS
TX+/TX-
Table 4. 100BASE-T MII Transmit Timing Parameters
Figure 5. 100BASE-T MII Transmit Timing
t
SU2
t
SU1
Data
In
t
t
CRS1
LAT
t
t
HD2
HD1
Symbol
Out
26
t
CRS2
Min
10
10
0
0
0
Typ
4
4
7
Max
May 2004
Micrel
Units
BT
BT
BT
ns
ns
ns
ns
ns