DESCRIPTION
The SC91650A/B, SC91651A/B, SC91652A/B are 13-memory Tone/Pulse switchable dialer with Last Number Redial(LNB) and HOLD function, which are fabricated in COMS technology with wide operating voltage for both tone and pulse mode, and consumes very low memory retention current in ON-HOOK state.

FEATURES
* 13-memory Tone/Puls e switchable dialer
* Three 16-digit one touch memory and ten 16-digit two touch memory
    One 32-digit last number redial memory
    One 32-digit SAVE function for storing phone number in off hook status
    Note: only 15-digit/31-digit for Tone mode, 1-digit use to identify tone mode
* Pulse-to-tone (P→T) is provided for PBX operation
* Flash key is available
* Minimum tone duration is 100ms for SC91650, SC91651 or 91ms for SC91652
* Minimum intertone pause is 106ms for SC91650, SC91651 or 91ms for SC91652
* Uses 3.579545MHz crystal or ceramic resonator
* Many options can be selected
    Mode (10PPS; 20PPS; Tone)
    M/B ratio (40:60;33:66)
    Pause time (3.6s;2.0s)
    Pulse number (n;n+1;10-n)
    Flash function (RESET;digit)
    (P→T) pause time (3.6s;1.0s)
    Flash time (80ms; 93ms; 100ms; 200ms; 300ms; 600ms)
    Flash pause time (200ms; 1000ms)
* Redial pause time (1ms)
* Mixed dialing and cascade dialing is provided
* Handfree function is provided for speaker phone application
* Power on reset circuit is provided
* Hold function is provided
* Keytone is provided
* Packaged in 18-DIP or 22-DIP