STLC5460 Datasheet - STMicroelectronics

DESCRIPTION
The Line Card Interface Controller, STLC5460, is a monolithic switching device for the path control of up to 128 channels of 16, 32, 64 kbps bandwidth. Two consecutive 64 kbps channels may also be handled as a quasi single 128 kbps channel. For these channels, the LCIC performs non-blocking space time switching between two serial interfaces: the system interface (or PCM interface) and the general component interface (GCI).

■ BOARD CONTROLLER FOR UP TO 16 ISDN LINES OR 16 VOICE SUBSCRIBERS.
■ TWO SERIAL INTERFACES :
   -PCM Four bidirectional multiplexes
   -GCI One (or two) at 2 Mb/s.
■ NON BLOCKING SWITCH FOR 128 CHANNELS (16, 32 OR 64 KB/S BANDWIDTH).
■ N CONSECUTIVE 64 kb/s CHANNELS FROM AN INPUT MULTIPLEX CAN BE SWITCHED AS A SINGLE N X 64 kbit/s CHANNEL TO AN OUTPUT MULTIPLEX AT 2048 kb/s.
■ TIME SLOT ASSIGNMENT FREELY PROGRAMMABLE FOR EVERY CONNECTED SUBSCRIBER.
■ PROGRAMMABLE PCM DATA RATES UP TO 8192 kb/s.CONSTANT DATA RATE AT 2 Mb/s ON GCI SIDE.
■ PCM interface :
   - Simple and double clock frequency selectable;.
   - Programmable clock shift
   - Tristate mode control signals for external drivers.
■ GCI interface :
   - Six bits or four bits Command/indicate channel selectable for analog or digital equipment
   - Command/IndicateMonitor channels validated or not
■ Microprocessor access to two selected bidirectional channels of GCI and/or PCM.
■ Multicontrollers for layer 1 functions :
   - C/I protocol controller for up to 16 C/I channels
   - Monitor protocol controller for up to 16 Monitor channels.
■ Standard microprocessor interface with multiplexed address/data bus or separate address data buses.
■ PLCC44 pins PACKAGE