KSZ8041FTLI Micrel Inc, KSZ8041FTLI Datasheet - Page 60

• Manufacturer Part Number: KSZ8041FTLI
• Description: Physical Layer Transceiver 10/100BASE-FX ( )
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KSZ8041FTLI

• Number Of Drivers/receivers: 1/1
• Protocol: SMII
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-3294 - BOARD EVALUATION KSZ8041FTL
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-3347

Micrel, Inc.
KSZ8041TL/FTL/MLL
Reset Circuit
The following reset circuit is recommended for powering up the KSZ8041TL/FTL/MLL if reset is triggered by the power
supply.
3.3V
D1: 1N4148
D1
R 10K
KSZ8041TL/FTL/M LL
RST#
C 10uF
Figure 23. Recommended Reset Circuit
The following reset circuit is recommended for applications where reset is driven by another device (e.g., CPU or FPGA).
At power-on-reset, R, C and D1 provide the necessary ramp rise time to reset the KSZ8041TL/FTL/MLL device. The
RST_OUT_n from CPU/FPGA provides the warm reset after power up.
3.3V
R 10K
D1
KSZ8041TL/FTL/MLL
CPU/FPGA
RST#
RST_OUT_n
D2
C 10uF
D1, D2: 1N4148
Figure 24. Recommended Reset Circuit for Interfacing with CPU/FPGA Reset Output
December 2009
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M9999-120909-1.2