MT90868 Zarlink Semiconductor, Inc., MT90868 Datasheet - Page 2

• Manufacturer Part Number: MT90868
• Description: High Bandwidth Digital Switch - 8,192 x 8,192 channels among local streams and 1,024 x 1,024 channels among two selected backplane streams
• Manufacturer: Zarlink Semiconductor, Inc.

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MT90868
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Applications
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Non-multiplexed microprocessor interface
Connection memory block programming for fast
device initialization
Tristate-control outputs for external drivers on
local port
Conforms to the mandatory requirements of the
IEEE-1149.1 (JTAG) standard
1.8V core supply voltage
3.3V I/O supply voltage with 5V tolerant I/O’s
Mediation switches
High capacity TDM switching platforms utilizing
DS-3/OC-3 rates
Central office switches
Access equipment
Description
The MT90868 Digital Switch provides switching
capacities of 32,768 x 8,192 channels between
backplane and local streams, 8,192 x 8,192
channels among local streams and 1,024 x 1,024
channels among two selected backplane streams.
The local port has sixty-four input and sixty-four
output streams which operate at 8.192Mb/s. The
backplane port has sixty-four input and sixty-four
output streams which operate at 16.384Mb/s or
32.768Mb/s.
The MT90868 has features that are programmable
on per-stream or per-channel basis including
message
advancement, constant throughput delay, high
impedance output control for both local and
backplane streams and the driven-high backplane
output control.
mode,
input
Advance Information
bit
delay,
output
bit