The CS61577 is a drop-in replacement for the CS61574 and combines the complete analog transmit-and-receive line interface for T1 or E1 applications in a low-power, 28-pin device operating from a 5 V ...
The CS61584A is a dual line interface for T1/E1 applications, designed for high volume cards where low power and high density are required.The CS61584A is a dual line interface for T1/E1 applications, ...