HT93LC46 8-bit Voice Synthesizer MCU Revision # 2.10 Modifications made on January 16, 2014 In the Features and other section, the operating voltage and low power consumption content was modified. The D.C. Characteristics section was modified. The A.C. Characteristics section was modified. The Package Information section was modified. The Product Tape and Reel Specifications section was deleted. Revision # 2.00 Modifications made on May 6, 2010 In the Features and other related sections, the operating voltage and standby current values were modified. The Package Information section was modified. Revision # 1.90 In the A.C. Characteristics table, the tHV entry was modified. Revision # 1.80 Modifications made on July 9, 2009 Modifications made on January 16, 2009 In the Features and other related sections, the operating voltage range has been modified. The Absolute Maximum Ratings section was modified. In the D.C. Characteristics table, the ISTB entry was modified. The Package Information section was modified. The Product Tape and Reel Specifications section was modified. Revision # 1.70 Modifications made on November 17, 2008 In the Features, D.C. Characteristics and other related sections, the operating temperature was modified. Revision # 1.60 The note under the EEPROM Instruction Set Summary table was modified. Revision # 1.51 Modifications made on June 24, 2008 Modifications made on June 16, 2008 In the Package Information section, the 8-pin SOP (150mil) Outline Dimensions diagram was modified. Revision # 1.50 Modifications made on October 25, 2007 In the A.C. Characteristics section, the timing diagram was modified. Revision # 1.40 Modifications made on March 14, 2007 The Features section was modified. In the Absolute Maximum Ratings section, the Operation Temperature values were modified. In the D.C. Characteristics table, the VCC values were modified. Revision # 1.30 Modifications made on January 10, 2007 In the D.C. Characteristics table, the rows with the VCC values of 2~5.5V were modified to 2.2~5.5V. The A.C. Characteristics table was modified. Revision # 1.20 Modifications made on March 30, 2004 At the Features section, D.C. Characteristics section and other related sections, the Operating voltage VCC was changed to 2.2V~5.5V. The 2ms write cycle time was also changed to 5ms max. At the Pin Description section, the description for ORG pin was modified. At the Absolute Maximum Ratings section, the Supply READ Voltage was deleted. At the A.C. Characteristics table, the column heading VCC=2V was modified to VCC=2.2V. The maximum values for the Write Cycle Time, tPR were also modified to 5ms. Revision # 1.10 Modifications made on October 17, 2003 At the Features section, Pin Assignment section and other related sections, 8-pin TSSOP package was added. Package Information section was added. Product Tape and Reel Specifications section was added.