AC207
PRODUCT
A C 2 0 7
F E AT U R E S
S U M M A R Y
O F
Brief
B E N E F I T S
8-PORT ULTRA LOW POWER 10/100 ETHERNET BRIDGED REPEATER
integration
•
The highest level of siliconrepeater achieved for an
eight-port 10/100 bridged
•
The AC207 integrates:
• Eight transceivers of 10BASE-T/100BASE-TX
• One uplink port
• 10M repeater
• 100M repeater
• Two-port bridge including:
- 32 KB memory for address table and packet buffer
- Local MAC address filter
- Address table up to 1K entries
a member of the
•
AC207 is architecture and AC208 product family with
the same
fabrication technology.
•
Provides seamless integration for WAN connections
•
and system expansion.
Includes lowest overall
form factor
•
repeater hub design andcost and gateway andfor 10/100
SOHO
router
•
•
•
•
•
Other members in the product family include AC208,
AC206, AC205 and AC205i.
Provides easy product migration.
•
MII or 7-wire port
•
Fully compliant auto-negotiation
•
Very small package – 128-pin PQFP
•
Very low power – typical < 1.8W
• 280 sq. mm footprint
•
Cable detect mode – typical < .32W
•
Power down mode – typical < .08W
• Selectable TX drivers for 1:1 or 1.25:1 transformers to enable
additional power reduction
design.
Field-proven, industry-standard 10BASE-T/100BASE-
TX Fast Ethernet transceivers lower overall system
interoperability and reliability risks.
Integrated memory reduces component cost and
manufacturing and testing costs.
Low power consumption and low heat dissipation
allows high design density and low system cost.
EEPROM-configured system parameter enables cost-
sensitive architecture.
Configurable MII or 7-wire interface allows versatile
application with WAN connectivity.
AC207 System Block Diagram
CPU
MII / 7-wire
T1/E1
ISDN
Cable Modem
xDSL
AC207
T
X
T
X
T
X
T
X
T
X
T
X
T
X
T
X
ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL
A C 2 0 7
O V E R V I E W
AC207 Block Diagram
32
KB
RAM
10/100M IRB
100M/5b
MII
Bridge
10M/1b
• Integrated PHY, Repeater and
MII
Bridge
• Integrated Packet Buffer Memory
• Integrated 1K MAC
• Programmable LEDs via EEPROM
• MII or 7-Wire Interface for CPU or
MAC Access
R_100
...
10M/1b
IRB
100M/5b
MII
MII/
7-Wire
M
U
X
5b/1b
P
H
Y
P
H
Y
P
H
Y
P
H
Y
P
H
Y
R_10
...
MUX
P
H
Y
P
H
Y
P
H
Y
7 Wire
TX0
TX1
TX2
TX3
TX4
TX5
TX6
TX7
Up Link
The Altima
AC207
is a highly integrated 0.25u CMOS silicon
solution. It combines all the functions of a 10/100 dual speed
bridged repeater including PHY transceivers, an MII or 7-wire
hard-wire configurable interface, two internal repeaters, a two-
port bridge with 32 KB embedded memory.
The
AC207
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 MII-compatible MAC interface allows the
AC207
to be
designed into many different applications, reducing the number
of separate devices necessary to meet multiple design
requirements.
The
AC207
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
AC207
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
AC207
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
AC207
provides the lowest
overall system cost and most reliable design.
The
AC207
is a member of the AC208 product family. The
AC208 product family includes the AC208,
AC207,
AC206,
AC205 and AC205i with the following features and
configurations:
• AC208: 128-pin PQFP, eight-port TX with cascadable
backplane
•
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
© 2002 by ALTIMA COMMUNICATIONS, INC.
A Broadcom Company. All rights reserved.
AC207-PB03-R-11.01.02
ALTIMA COMMUNICATIONS, INC.
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL
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