KS8721SL-EVAL Micrel Inc, KS8721SL-EVAL Datasheet - Page 37

• Manufacturer Part Number: KS8721SL-EVAL
• Description: BOARD EVAL EXPERIMENT KS8721SL
• Manufacturer: Micrel Inc

Specifications of KS8721SL-EVAL

• Main Purpose: Interface, Ethernet Controller (PHY and MAC)
• Embedded: No
• Utilized Ic / Part: KSZ8721SL
• Primary Attributes: 1 Port, 100BASE-TX/100BASE-FX/10BASE-T
• Secondary Attributes: MII, RMII, Auto MDI, MDIX, >130 Meter Cable Driver, LDO, IEEE802.3u Compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 576-1010

KS8721BL/SL (3.3V Single Power Supply 10/100BaseTX/FX MII Physical Layer Transceiver)
10BaseT MII Transmit Timing
SQE Timing
t
t
t
t
t
t
t
t
t
SU1
SU2
HD1
HD2
CRS1
CRS2
LAT
SQE
SQEP
TXC
TXEN
TXD[3:0]
CRS
TXP/TXM
TXC
TXEN
COL
TXD[3:0] Setup to TXC High
TXEN Setup to TXC High
TXD[3:0] 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)
COL (SQE) Delay after TXEN de-asserted
COL (SQE) Pulse Duration
t
SU2
t
SU1
t
LAT
t
CRS1
t
SQE
t
t
HD2
HD1
- 37 -
Valid
Data
t
SQEP
KS8721BL/SL Preliminary Rev 0.90
min.
10ns
10ns
0ns
0ns
t
CRS2
Aug, 2003
typ.
4BT
8BT
4BT
2.5us
1.0us
max.