STLC5466

 64 TX HDLCs with broadcasting capability and/or CSMA/CR function with automatic restart in case of Tx frame abort
64 RX HDLCs including Address Recognition
16 Command/Indicate Channels (4 or 6-bit primitive)
16 Monitor Channels processed in accordance with GCI or V*
256 x 256 Switching Matrix without blocking and with Time Slot Sequence Integrity and loopback per bidirectional connection
DMA Controller for 64 Tx Channels and 64 Rx Channels
HDLCs AND DMA CONTROLLER ARE CAPABLE OF HANDLING A MIX OF LAPD,LAPB, SS7, CAS AND PROPRIETARY SIGNALLINGS
External shared memory access between DMA Controller and Micro processor
SINGLE MEMORY SHARED BETWEEN
x MULTI-HDLCs AND SINGLE MICRO PROCESSOR ALLOWS TO HANDLE n x 64 CHANNELS
Bus Arbitration
Interface for various 8,16 or 32 bit Microprocessors with fetch memory to accelerate the exchanges between Microprocessor and SHARED MEMORY
SDRAM Controller allows to inter face up to 16 Megabytes of Synchronous Dynamic RAM
Interrupt Controller to store automatically events in shared memory
Boundary scan for test facility
TQFP176 package 24 x 24 x 1.40 #MS-026BGA
HCMOS6; 0.35 micron; 3.3volts +/-5%
Operating temperature: -40 to +85 °/C

The STLC5466 is a Subscriber line interface card controller for Central Office, Central Exchange, NT2 and PBX capable of handling:
 16 U Interfaces or
2 Megabits line interface cards or
16 SLICs (Plain Old Telephone Service) or
Mixed analogue and digital Interfaces (SLICs or U Interfaces) or
16 S Interfaces
Switching Network with centralized processing.