MT90210AL

• Parallel-to-serial and serial-to-parallel conversion of up to 1536 full duplex channels or 3072 time-slots
• Serial port data rates selectable between 2.048, 4.096 or 8.192 Mb/s
• Provides a mechanism for a double buffer function to be implemented in external memory
• 24 serial I/O lines programmable in different modes: 12 in/12 out at 8.192 Mb/s (1536 full duplex channels) or 24 bidirectional line modes for 2.048 and 4.096 Mb/s
• Provides a bidirectional 8-bit parallel port operating at 16.384 or 32.768 MByte/s for direct interface to external memory (dual port)
• Provides an external 13-bit output address bus for direct connection with an 8K-position dual port memory
• JTAG boundary scan

The MT90210AL is a 100-pin device used to interface a parallel bidirectional 8 bit bus to 24 time division multiplexed (TDM) serial streams. The MT90210AL is configured to perform simultaneous parallel-to-serial and serial-to-parallel conversion with the capability of handling up to 3072 channels, 1536 on the transmit and 1536 on the receive direction. Depending on the operation mode selected at the mode pins, the individual 64 Kb/s channels of MT90210AL on the serial links may be configured as inputs or outputs. The data on the parallel bus is in a format suitable for interfacing with a dual-port RAM. Depending on the data rate selected by the MD0-MD2 input pins, serial data is clocked in and out on the serial streams at either 2.048, 4.096 or 8.192 Mb/s.