MTC20174-TQ-C1TR STMicroelectronics, MTC20174-TQ-C1TR Datasheet - Page 4

• Manufacturer Part Number: MTC20174-TQ-C1TR
• Description: IC ST70138 + MTC20174 100-TQFP
• Manufacturer: STMicroelectronics

Specifications of MTC20174-TQ-C1TR

• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Data Format: -
• Baud Rates: -

Features
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Description
The Unicorn II chipset is succeeding the field-
proven Unicorn, the first controller-less ADSL
USB modem chipset that was deployed in
volume. Compared to conventional USB ADSL
chipsets, the Unicorn II dramatically reduces
design and production costs of USB ADSL
modems. The chipset which is manufactured in a
cost-effective CMOS technology integrates a
number of external components which results in
reduced component count and PCB complexity.
Thus E-BOM costs could be lowered significantly,
while overall performance was improved.
Its proven controller-less and SDRAM-less
architecture is a key differentiator in today's highly
March 2007
For further information contact your local STMicroelectronics sales office.
Support digital signal processing requirements
for one ADSL CPE channel (ITU-R)
Compliant with ITU 992.1 (ADSL full rate)
Annex A (ADSL over POTS), Annex B (ADSL
over ISDN), ITU 922.2 (G.LITE) and ANSI
T1.413.
Enhanced FTP transfer capabilities
Direct interface to USB
(USB release 1.1 specification)
Direct interface to external 8/16 bit serial
memory to support USB user's configuration
Direct analog front end interface for MTC20174
Clock and reset interface
1.8V and 3.3V power supply
TTL logic levels compatible
Power management capabilities
Low power consumption : max 0.45W
TQFP144 (backward compatible with ST70137
legacy ADSL USB chip)
LFBGA80
UNICORN II™ USB controller-less ADSL transceiver
Rev 3
competitive and cost-focused DSL modem
market.
The Unicorn II chipset has been designed to
provide CPE manufacturers with a complete and
extremely cost-effective solution for ADSL USB
modems operating under a variety of operating
systems, such as Microsoft Windows™, Mac OS
and Linux. The controller-less architecture of the
Unicorn II and the fact that it does not require an
external SDRAM, make its external bill-of-
materials (E-BOM) best-in-class.
Thanks to its small form factor packages and an
external component count of less than 140, the
Unicorn II easily fits on a small-dimension
standard 2-layer single-sided PCB which further
reduces overall system cost. Combining low
power consumption, high-speed performance (up
to 8 Mbps), field-proven driver software and
customizable user interface, the Unicorn II is the
ideal choice for cost-conscious equipment
manufacturers, telecom operators/ISPs and
ADSL users alike.
The Unicorn II chipset consists of the ST70138
digital chip and the MTC20174 analog front end
with integrated line driver. The ST70138 is
supplied in two packages, LBGA80 and
TQFP144. The ST70138T, packaged in TQ144, is
pin-compatible to the ST70137 legacy ADSL USB
chipset, enabling manufacturers to benefit directly
from the cost and performance advantages that
the ST70138 brings.Supplied in a compact
LBGA80 package, the ST70138B brings
additional cost advantages to new designs.
The MTC20174 has been designed for use in
DMT-based ADSL CPE modems than comply with
ANSI T1.413 issue 2, ITU G.992.1 (G.dmt) and
ITU G.992.2 (G.lite), for Annex A and B, and the
DT U-R2 specification.
TQFP144
LFBGA80
ST70138
Data Brief
www.st.com
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