General Description
The HT49C10 is an 8-bit high performance single chip microcontroller. Its single-cycle instruction and two-stage pipeline architecture make it suitable for high speed applications. The device is also suited for multiple LCD low power applications among which are calculators, clock timers, games, scales, leisure products, other hand held LCD products, and battery systems in particular.

Features
• Operating voltage: 2.2V~5.2V
• Eight bidirectional I/O lines
• Six input lines
• Two external interrupt input
• 8-bit programmable timer/event counter withPFD(programmablefrequencydivider)
• Watchdog timer
• On-chip crystal and RC oscillator
• 1K14 program memory ROM
• 648 data memory RAM
• Real Time Clock (RTC)
• 8-bit prescaler for RTC
• Buzzer output
• Halt function and wake-up feature reduce power consumption
• LCD driver with 193 or 184 segments
• 4-level subroutine nesting
• Bit manipulation instruction
• 14-bit table read instruction
• Up to 1μs instruction cycle with 4MHz system clock
• 63 powerful instructions
• All instructions in 1 or 2 machine cycles
• 48-pin SSOP package