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HT9200A

Holtek Semiconductor Inc
Part Number HT9200A
Manufacturer Holtek Semiconductor Inc
Description DTMF Generators
Published Mar 26, 2005
Detailed Description HT9200A/HT9200B DTMF Generators Features · Operating voltage: 2.5V~5.5V · Serial mode for the HT9200A · Serial/parallel...
Datasheet PDF File HT9200A PDF File

HT9200A
HT9200A

Overview
HT9200A/HT9200B DTMF Generators Features · Operating voltage: 2.
5V~5.
5V · Serial mode for the HT9200A · Serial/parallel mode for the HT9200B · Low standby current · Low total harmonic distortion · 3.
58MHz crystal or ceramic resonator · HT9200A: 8-pin DIP/SOP package HT9200B: 14-pin SOP package General Description 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.
Selection Table Function Part No.
HT9200A HT9200B Operating Voltage 2.
5V~5.
5V 2.
5V~5.
5V OSC Frequency 3.
58MHz 3.
58MHz Interface Serial Serial/Parallel Package 8DIP/SOP 14SOP Block Diagram X 1 3 .
5 8 M H z C r y s ta l/R e s o n a to r X 2 O s c illa to r D TM F G e n e ...


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