MT90863

MT90863 3V Rate Conversion Digital Switch Advance Information 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 DS5034 ISSUE 3 March 1999 Ordering Information MT90863AL1 MT90863AG1 128 Pin MQFP 144 Pin BGA -40 to +85 C 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. The MT90863 also offers a sub-rate switching configuration which allows 2-bit wide 16kb/s data channels to be switched within the device. The device has features (such as: message mode; input and output offset delay; direction control; and, high impedance output control) that are programmable on per-stream or per-channel basi...