HT48R10A-1/HT48C10-1    I/O Type 8-bit MCU

Revision # 2.01   Modifications made on January 9, 2009

  • The Package Information section was modified.
  • The Product Tape and Reel Specifications section was modified.

Revision # 2.00   Modifications made on August 26, 2008

  • The Technical Document section was modified.
  • The Instruction Set section was modified.
  • The Instruction Definition section was modified.
  • The Package Information section was modified.
  • The Product Tape and Reel Specifications section was modified.

Revision # 1.90   Modifications made on November 4, 2005

  • The Pad Assignment section was deleted.

Revision # 1.80   Modifications made on May 25, 2005

  • Technical Document section was added.

Revision # 1.70   Modifications made on September 21, 2004

  • At the D.C. Characteristics table, the IDD3 Parameter, as well as Typ. and Max. Conditions were modified.

Revision # 1.60   Modifications made on June 9, 2004

  • At the table below the Application Circuits section, the entries of the column for Crystal or Resonator were modified. A brief functional description for R1 was added at the bottom portion of the table.

Revision # 1.50   Modifications made on April 26, 2004

  • The Product Title was modified from 8-Bit I/O Type MCU to I/O Type 8-Bit MCU.
  • At the D.C. Characteristics table, the Min. value for the RPH 3V was changed from 40kW to 20kW and the Max. value from 80kW to 100kW.

Revision # 1.40   Modifications made on February 11, 2004

  • The Block Diagram was modified.
  • At LVR section, the VLVR values were changed from 3.3V to 3.0V for VDD and from 2.4V to 2.2V for VOPR.

Revision # 1.31   Modifications made on December 16, 2003

  • At the Instruction Set Summary and Instruction Definition sections, the missing TABRDL [m] instructions were added back.

Revision # 1.30   Modifications made on August 25, 2003

  • The PD flag label was changed to PDF flag.
  • The Application Circuits were modified.
    • The recommended RESET circuitry was modified.
      For reasons of stability and noise immunity, the 2-resistor/2-capacitor or 2-resistor/1-capacitor recommended circuits are an improvement over the 1-resistor/1-capacitor circuit. The choice of which circuit is used depends upon the user application. For example, for battery powered applications the single resistor and single capacitor circuit may be adequate whereas for applications such as home appliances, industrial control applications or for circuits which are close to electrical noise sources, the 2-resistor/2-capacitor circuit may be the better choice.
    • The Crystal OSC application circuitry was also modified
      The recommended additional resistor has been added to ensure that the oscillator will cease to function when the supply voltage falls below 2.2V to prevent microcontroller malfunctions. This is because of instabilities in the oscillator at supply voltages of less than 2.2V.
    • The Instruction Definition section was modified, with the first two columns deleted.

Revision # 1.20   Modifications made on May 12, 2003

  • The TMR entries on the table for the Reset register status were modified.

Revision # 1.10   Modifications made on January 17, 2003

  • The system clock label on the block diagram was modified.
  • At the  Oscillator section and other related sections, the WDT period was changed from 78µs to 65µs/5V.
  • At the Watchdog Timer section and other related section, the nominal time-out period was changed from 16.6ms/5V to 17ms/5V.

Revision # 1.00   This was posted on January 2, 2003

  • HT48R10A-1 and HT48C10-1 datasheets were combined. Revision number
     restarted from 1.00.

 
 

Product Description