2.00

HT16515
1/4 to 1/12 Duty VFD Controller
Revision # 2.00
Modifications made on June 23, 2015

The Pin Description section was modifed.

The Package Information section was modified.
Revision # 1.90

Modifications made on November 5, 2012
In the Features and other related sections, the 44-pin QFP package was deleted
Revision # 1.80
Modifications made on September 30, 2011

The Pad Assignment section was modified.

In the D.C. Characteristics section, the fOSC value was modified.

The Package Information section was modified.
Revision # 1.70

Modifications made on May 7, 2010
In the Features, Pin Assignment and other related sections, a new 44-pin LQFP
package type was added.

The Package Information section was modified.
Revision # 1.60

Modifications made on April 1, 2009
In the A.C. Characteristics table, the Clock Frequency parameter was modified.
Revision # 1.50
Modifications made on October 30, 2008

The Pad Assignment section, the chip size value was modified.

The Package Information section was modified.
Revision # 1.40
Modifications made on November 1, 2007

The Pad Assignment section was modified.

In the D.C. Characteristics section, the values for IOL was modified.
Revision # 1.30

Modifications made on November 21, 2006
The Ioh source current values in the DC Characteristics table have been moved to the
correct maximum column.
Revision # 1.20
Modifications made on October 12, 2005

At the Features section, the Logic voltage value was modified from 5V to 3.0V~5.5V

At the D.C. Characteristics table, the Test Conditions VDD and IOL entries were
modified.
Revision # 1.10
Modifications made on October 4, 2005

A Technical Document section was added.

At the D.C. Characteristics table, the 3.3V VDD data was added.

At the A.C. Characteristics table, the 3.3V VDD data was added.

In the Timing Diagrams section, the note of the Serial Communication Format was
modified.
Revision # 1.00
This was posted on December 19, 2003
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