HT1622    RAM Mapping 32x8 LCD Controller for I/O MCU

Revision # 2.30    Modifications made on November 9, 2010

• In the A.C. Characteristics table, the t_RSTD entry was added and Figure 4 was modified.
• The note below the Internal Resistor Type Bias Generator Configurations diagram was modified.

Revision # 2.20    Modifications made on September 8, 2010

• The Gold Bump part number has been added to the datasheet header.

Revision # 2.10   Modifications made on May 12, 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 # 2.00    Modifications made on June 9, 2009

• In the A.C. Characteristics section, the t_OFF and t_SR entries and other related Note description & Figure were added.

Revision # 1.90   Modifications made on March 19, 2009

• In the Features section, the “Cascade application” item was removed.

Revision # 1.80   Modifications made on December 3, 2008

• In the D.C. Characteristics section, the I_OH1, I_OH2, I_OH3 and I_OH4 entries were modified.
  
• In the A.C. Characteristics section, the f_SYS, f_LCD and f_TONE entries were modified.

Revision # 1.71   Modifications made on September 25, 2008

• A Patent Notice has been added to the datasheet.

Revision # 1.70   Modifications made on May 21, 2008

• In the D.C. Characteristics section, the I_DD1 and I_DD2 conditions were modified.

Revision # 1.60   Modifications made on March 17, 2008

• In the Pin Assignment and Package Information sections, the 64-pin LQFP package was modified

Revision # 1.50   Modifications made on February 27, 2008

• In the Features and other related sections, the package information was modified.
  
• The Pad Assignment section was modified.
  
• The Pad Coordinates section was modified.
  
• The D.C. Characteristics section was modified.
  
• The A.C. Characteristics section was modified.

Revision # 1.40   Modifications made on February 06, 2007

• The RC Oscillator Frequency Deviation Table has been modified.

Revision # 1.30   Modifications made on May 21, 2004

• At the Absolute Maximum Ratings section, the Operating Temperature range was modified from (-25°C to 75°C) to (-40°C to 85°C).
• RC Oscillator Frequency Deviation table was added before the Functional Description section.

Revision # 1.20   Modifications made on April 24, 2003

• The Command Summary table was modified.

Revision # 1.10   Modifications made on September 11, 2002

• At the Pad Description table, the description for the falling edge and rising edge of the RD were interchanged.
• Package Information section was added.