ROCKWELL CREATES NEW PRICE POINT WITH INTRODUCTION OF LOW-COST V.32BIS
MODEM CHIPSET

NEWPORT BEACH, Calif. (March 21, 1994) -- Rockwell (NYSE:ROK) today created
a new price point in modem market with the introduction of the RC96ATi and
the RC144ATi modem device sets.  These chipsets provide OEMs in the
cost-sensitive PC retail segment with the lowest system cost
implementation available today, offering the high-functionality of a
V.32bis modem while significantly reducing the cost of existing hardware
designs by minimizing component count and board space.

The RC96ATi and RC144ATi, which consist of a modem data pump and an
integrated modem controller, are pin-to-pin compatible with Rockwell's
Telecommunications ACi product family.  Using the Rockwell Protocol
Interface(tm) (RPI(tm)) allows for the implementation of error correction
and data compression in the host software application.  By replacing the
ACi chipset with the pin compatible ATi device, which requires no external
memory, OEMs will benefit from lower prices -- and lower manufacturing
costs.

The RC96ATi and the RC144ATi support 14.4 Kbps data (V.32bis) and 14.4Kbps
send/receive Group 3 facsimile (V.17) and operate at 9600bps data (V.32),
send/receive facsimile (V.29), with downward compatibility from 7200 to
75bps for data and 7200 to 2400bps for facsimile tranmission.  The
chipsets, which include a 16550 Universal Asynchronous
Receiver/Transmitter (UART), also support AT commands, V.42, MNP 2-4 error
correction and V.42bis and MNP 5 data compression (in the host software),
EIA/TIA 578 Class 1 fax standard and Calling Number Delivery (CND) or
Caller ID detect.

The two-package RC96ATi and RC144ATi are offered in 68-pin PLCC and 84-pin
PLCC packages.  Samples of the RC96ATi and the RC144ATi are available now;
volume production is scheduled to begin in the next 60 days.  Pricing for
10K quantities is as follows: RC96ATi -- $41; RC144ATi -- $49.  For more
information or technical documentation, call (800) 436-9988 or FAX (818)
365-1876.

Digital Communications Division
4311 Jamboree Rd., M/S 501-300
Newport Beach, CA  92658-8902

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