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Holtek HT9200B SO-14 DTMF Generator

Holtek HT9200 DTMF Generator – Holtek HT9200B, DTMF generator, 2.5V to 5.5V supply voltage, 2uA standby current, 0.15Vrms DTMF AC level, 3.58MHz system frequency, 950uA operating current, -0.1mA output drive current, 68K pull high resistance, -20 to +75°C, 14-SOP case, the HT9200A/B tone generators are designed for MCU interfaces, they can be instructed by a MCU to generate 16 dual tones and 8 single tones from the DTMF pin, the HT9200A provides a serial mode whereas the HT9200B contains a selectable serial / parallel mode interface for various applications such as security systems, home automation, remote control through telephone lines, communication systems, etc. Holtek HT9200B SO-14 DTMF Generator

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