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AC208-DS04-405-R Datasheet(PDF) 46 Page - Broadcom Corporation.

Part # AC208-DS04-405-R
Description  2.5V 10/100-TX 8-Port Repeater/71 Uplink Port with Integrated Bridge
PDF  58 Pages
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Manufacturer  BOARDCOM [Broadcom Corporation.]
Direct Link  http://www.broadcom.com
Logo BOARDCOM - Broadcom Corporation.

AC208-DS04-405-R Datasheet(HTML) 46 Page - Broadcom Corporation.

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AC208
Preliminary Data Sheet
07/08/02
B roa dcom
Page 38 LED Display Matrix
Document
AC208-DS04-405-R
LED DISPLAY MATRIX
The LED Display uses refresh technique. By using the LED display matrix, the number of ports to drive the LED can be
significantly reduced. Two LEDs are assigned for each port. On, Off, and Flash states are used to indicate different
information. With reduced LED counts, and reduced number of signals, the LED display will be easier to route on the board,
and less costly.
Figure 5: LED Display Matrix
SYSTEM CONSIDERATIONS
The design of the chip is optimized for low cost 10/100 Mb unmanaged repeater applications. It also provides flexibility for
systems that require multiple LAN ports within the same unmanaged repeater domain.
LED_LN[5]
LED_D[0]
LED_LN[4]
LED_LN[3]
LED_LN[2]
LED_LN[1]
LED_LN[0]
LED_D[1]
LED_D[2]
LED_D[3]
LED_D[4]
LED_D[5]
LED_D[6]
LED_D[7]
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330 OHM
330 OHM
330 OHM
330 OHM
330 OHM
330 OHM
330 OHM
330 OHM



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