KSZ8721BL Micrel Inc, KSZ8721BL Datasheet - Page 30

• 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
t
M9999-051704
Reference Circuit for Strapping Option Configuration
Figure 10 shows the reference circuit for strapping option pins.
sr
Parameter
Stable Supply Voltages to Reset High
Strap-In
Voltage
RST_N
Supply
Value
Figure 10. Reference Circuit, Strapping Option Pins
Reference circuits for unmanaged programming through LED ports.
KS8721BL/SL
KS8721BL/SL
Pull-down
Table 8. Reset Timing Parameters
Pull-Up
Figure 9. Reset Timing
tsr
LED pin
LED pin
10k
30
2.5V
2.5V
220
220
1k
Min
50
Typ
Max
May 2004
Micrel
Units
s