New Industry Products

Winbond Electronics W6691 ISDN S/T Controller

December 04, 2002 by Jeff Shepard

Winbond Electronics Corp. (Taiwan) announced its new W6691 ISDN S/T controller, designed for embedded systems applications, which integrates a S/T-transceiver and three HDLC controllers each with a flexible FIFO with a 64-byte d-channel and two 128-byte b-channels. The chip can be configured by an external pin to operate in TE, LT-S and LT-T modes. The IC features either a PCM or GCI bus to connect with a CODEC chip for voice applications.

Available in a 64-pin, LQFP casing, the controller operates from a 3.3V supply and features two extended external interrupts, as well as an internal DPLL circuit to generate the DCL and FSC signal for NT2 applications.