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AM79C978VC/W 数据表(PDF) 226 Page - Advanced Micro Devices

部件名 AM79C978VC/W
功能描述  Single-Chip 1/10 Mbps PCI Home Networking Controller
PDF  261 Pages
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制造商  AMD [Advanced Micro Devices]
网页  http://www.amd.com
标志 AMD - Advanced Micro Devices

AM79C978VC/W 数据表(HTML) 226 Page - Advanced Micro Devices

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Am79C978
SWITCHING CHARACTERISTICS: BUS INTERFACE (CONCLUDED)
10BASE-T
Note: RX± pulses narrower than tPWDRD (min) will maintain internal Carrier Sense on. RX± pulses wider than tPWKRD (max) will
turn internal Carrier Sense off.
Figure 54.
10 Mbps Transmit (TX±) Timing Diagram
Figure 55.
10 Mbps Receive (RX±) Timing Diagram
Symbol
Parameter Description
Test Conditions
Min
Max
Unit
tTETD
Transmit End of Transmission
250
375
ns
tPWKRD
RX± Pulse Width Maintain/Turn Off Threshold
|VIN| > |VTHS| (Note 1)
136
200
ns
TX
±
tTETD
22206B-57
RX
±
t(PWKRD)
tPWKRD
VTSQ+
VTSQ-
t(PWKRD)
22206B-58



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