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

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 tOFF and tSR 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 IOH1, IOH2, IOH3 and IOH4 entries were modified.
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  • In the A.C. Characteristics section, the fSYS, fLCD and fTONE 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 IDD1 and IDD2 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¢XC to 75¢XC) to (-40¢XC to 85¢XC).
  • 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.

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Product Description
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