ST3938A Datasheet - STMicroelectronics

ST3938A, SPEECH - TONE/PULSE DIALER - LED INDICATOR

ST3917A ST3917B SPEECH - TONE/PULSE DIALER - LED INDICATOR SPEECH CIRCUIT 2 TO 4 WIRES CONVERSION PRESENT THE PROPER DC PATH FOR THE LINE www.DataShee

Features

* provided by the PABX or central office. The PAUSE key stores a timed pause in the number sequence. Redial is then delayed until an outside line can be accessed or some other activities occur before normal signalling resumes. A LND key automatically redials the last number dialed. Adedicatedpin MU/MF

ST3938A_STMicroelectronics.pdf