W91578DN, W91570DN - 23-MEMORY TONE/PULSE DIALER

Winbond

Datasheet Details

Part number	W91578DN, W91570DN
Manufacturer	Winbond
File Size	661.97 KB
Description	23-MEMORY TONE/PULSE DIALER
Datasheet	W91570DN-Winbond.pdf
Note	This datasheet PDF includes multiple part numbers: W91578DN, W91570DN. Please refer to the document for exact specifications by model.

The W91570DN series ICs are Si-gate CMOS ICs that provide the signals needed for either pulse or tone dialing.

Three by 32 digits for redial, save and mercury memory.
Twenty by 16 digits for one-touch direct or two-touch indirect repertory memory.
Uses 6 × 10 keyboard.
Pause, Pulse-to-tone (.
/T) and flash can be stored as a digit in memory.
Minimum tone output duration: 87 mS.
Minimum intertone pause: 87 mS.
Tone/Pulse mode pin selectable.
Make/Break ratio pin selectable.
Dialing rate (10 or 20 ppS) pin selectable.

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Published: Feb 1, 2018 |