1.50

HT9200A/HT9200B
Revision # 1.50

DTMF Generators
Modifications made on April 29, 2013
The Tone frequency table was modified.
Revision # 1.41
Modifications made on February 23, 2009

The Package Information section was modified.

The Product Tape and Reel Specifications section was modified.
Revision # 1.40

Modifications made on August 30, 2004
At the Pin Description section, the Pull-high Internal Connection for the CE pin was
deleted and its Description was modified.
Revision # 1.30

Modifications made on July 18, 2003
A the Features section, Selection Table and other related sections, the Operating
voltage range was changed from 2.0V~5.5V to 2.5V~5.5V.
Revision # 1.20

Package Information section was added.
Revision # 1.10

Modifications made on September 30, 2002
Modifications made on February 13, 2001
The 14-pin DIP package of HT9200B was deleted from the Selection Table, the Pin
Assignment section and from the serial/parallel mode Application Circuits.
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