Description
The MT90863 Rate Conversion Switch provides switching capacities of 2,048 × 512 channels between backplane and local streams, and 512 x 512 channels for local streams. The connected serial inputs and outputs may have 32, 64 and 128 64kb/s channels per frame with data rates of 2.048Mb/s, 4.096Mb/s and 8.192Mb/s respectively.

Features
• 2,048 × 512 and 512 x 512 switching among backplane and local streams
• Rate conversion between 2.048, 4.096 and 8.192Mb/s
• Optioal sub-rate switch configuration for 2.048 Mb/s streams
• Per-channel variable or constant throughput delay
• Compatible to HMVIP and H.100 specifications
• Automatic frame offset delay measurement
• Per-stream frame delay offset programming
• Per-channel message mode
• Per-channel direction control
• Per-channel high impedance output control
• Non-multiplexed microprocessor interface
• Connection memory block programming
• 3.3V local I/O with 5V tolerant inputs and TTL-compatible outputs
• IEEE-1149.1 (JTAG) Test Port

Applications
• Medium and large switching platforms
• CTI application
• Voice/data multiplexer
• Support ST-BUS, HMVIP and H.100 interfaces