General Description
The HT49R30A-1/HT49C30-1/HT49C30L are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for a wide range of LCD applications. The mask version HT49C30-1 and HT49C30L are fully pin and functionally compatible with the OTP version HT49R30A-1 device. The HT49C30L is a low voltage version, with the ability to operate at a minimum power supply of 1.2V, making it suitable for single cell battery applications.

FEATUREs
• Operating voltage:
    fSYS= 4MHz: 2.2V~5.5V for HT49R30A-1/HT49C30-1
    fSYS= 8MHz: 3.3V~5.5V for HT49R30A-1/HT49C30-1
    fSYS= 500kHz: 1.2V~2.2V for HT49C30L
• 6 input lines
• 8 bidirectional I/O lines
• Two external interrupt input
• One 8-bit programmable timer/event counter with PFD (programmable frequency divider) function
• LCD driver with 19x2, 19x3 or 18x4 segments
• 2Kx14 program memory
• 96x8 data memory RAM
• Real Time Clock (RTC)
• 8-bit prescaler for RTC
• Watchdog Timer
• Buzzer output
• On-chip crystal, RC and 32768Hz crystal oscillator
• HALT function and wake-up feature reduce power consumption
• 4-level subroutine nesting
• Bit manipulation instruction
• 14-bit table read instruction
• Up to 0.5μs instruction cycle with 8MHz system clock for HT49R30A-1/HT49C30-1
• Up to 8μs instruction cycle with 500kHz system clock for HT49C30L
• 63 powerful instructions
• All instructions in 1 or 2 machine cycles
• Low voltage reset/detector for HT49R30A-1/HT49C30-1
• 48-pin SSOP package