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參數(shù)資料
| 型號： | AC208 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8 PORT ULTRA LOW POWER 10/100 ETHERNET BRIDGED REPEATER |
| 中文描述： | 8端口超低功耗10/100以太網(wǎng)橋聯(lián)中繼 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大小： | 98K |
| 代理商： | AC208 |
The Altima
AC208
is a highly integrated 0.25u CMOS silicon
solution. It combines all the functions of a 10/100 dual-speed
bridged repeater including PHY transceiver, two internal
repeaters, two repeater backplane busses for expansion, a two-
port bridge with 32 KB embedded memory.
The
AC208
contains eight 10BASE-T/100BASE-TX Fast
Ethernet transceivers, one of which can be configured into a full-
duplex uplink port. The transceivers perform all of the physical
layer interface functions for 10BASE-T Ethernet on Category 3,
4, or 5 unshielded twisted pair (UTP) cable and 100BASE-TX
Fast Ethernet on Category 5 UTP cable.
The
AC208
represents a marked improvement over the previous
generation of the dual-speed bridged repeater family AC108R.
Because the memory is embedded in the silicon, the
AC208
offers the obvious advantage of cost savings in the discrete
memory device. Additionally, a 128-pin PQFP package means
savings in manufacturing and testing.
Because the
AC208
has the smallest footprint and the lowest
power consumption, on a per-port basis, of any micro-LAN
solution, when all system costs are considered — power, heat,
components and real estate — the
AC208
provides the lowest
overall system cost and most reliable design.
The
AC208
product family includes the
AC208
, AC207, AC206,
AC205 and AC205i with the following features and
configurations:
AC208
:
cascadable backplane
128-pin
PQFP,
eight-port
TX
with
AC207: 128-pin PQFP, eight-port TX with MII or 7-wire
AC206: 128-pin PQFP, five-port TX with MII or reversed MII
or 7-wire, cascadable repeater backplane
AC205: 100-pin PQFP, five-port TX with MII or 7-wire
AC205i: 100-pin PQFP, five-port TX with MII or 7-wire and
single independent TX port for IP phone
A C 2 0 8 O V E R V I E W
. . .
. . .
MUX
R_100
R_10
Bridge
10M
100M
100M RBP
10M RBP
P
H
Y
MII
MII
RBP
32 KB
RAM
P
H
Y
P
H
Y
P
H
Y
P
H
Y
TX4
TX3
TX2
P
H
Y
P
H
Y
P
H
Y
TX7
Up Link
TX6
TX5
TX1
TX0
10M RBP
100M RBP
2002 by ALTIMA COMMUNICATIONS, INC.
A Broadcom Company. All rights reserved.
AC208-PB03-R-11.01.02
ALTIMA COMMUNICATIONS, INC.
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL
AC208 Block Diagram
Integrated PHY, Repeater and
Bridge
Integrated Packet Buffer Memory
Integrated 1K MAC
Programmable LEDs via EEPROM
Backplane for Cascading
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