HT49RV3/HT49CV3    VFD Type 8-Bit MCU

Revision # 1.30   Modifications made on March 20, 2007

  • All references to the bit names ESBI and TRF in the INTC1 register have been modified to the new bit names ESII and SIF respectively.

Revision # 1.20   Modifications made on April 14, 2006

  • A new HT49RV3 OTP device was added to the HT49CV3.

Revision # 1.10   Modifications made on July 12, 2005

  • A Technical Document section was added.
  • The Features section was modified.
  • In the Pin Description section, the PB0~PB3 description was modified.
  • The D.C. Characteristics section was modified.
  • The Data Memory (RAM) section was modified.
  • In the Oscillator Configuration section, the System Oscillator diagram and note were modified.
  • In the Real Time Clock (RTC) section, the diagram was modified.
  • The Reset Timing Chart diagram was modified.
  • The Serial Interface section was modified.
  • The VFD Driver Output diagram was added.
  • In the Application Circuits section, the entries for OSC3, OSC4 and the RC System Oscillator external component values were modified. 

Revision # 1.00   This was posted on April 12, 2005

 
 

Product Description