* Tone/Pulse switchable.
* Wide operating voltage from 2.0 V to 5.5 V.
* Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically.
* Adding resistor on keyboard scan pin that can select many telephone specifications, such as : Pulse rate, M/B ratio, Flash ti
EM91440A Datasheet (175.74 KB)
EM91440A
ELAN Microelectronics Corp
175.74 KB
Tone/pulse switchable dialer with lcd interface and dual-tone melody generator.
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR AND DUAL-TONE MELODY GE.
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