XR-C277 - Low-Voltage PCM Repeater
The XR-C277 is a monolithic repeater circuit for PulseCode Modulated (PCM) telephone systems.
It is designed to operate as a regenerative repeater at 1.544 Megabits per second (Mbps) data rate on T1-type PCM lines.
It is packaged in a hermetic 16-Pin CERDIP package and is designed to operate over a