HT49R30

HT49R50 8-Bit Microcontroller Features · · · · · · · · · · Operating voltage: - 2MHz: 3.0V~5.2V - 2MHz~4MHz: 4.5V~5.5V 8 input lines 12 bidirectional I/O lines Two external interrupt input Two 8-bit programmable timer/event counter with PFD (programmable frequency divider) function LCD driver with 33´3 or 32´4 segments 4K´15 program memory EPROM 160´8 data memory RAM Real Time Clock (RTC) 8-bit prescaler for RTC · · · · · · · · · · · Watchdog timer Buzzer output On-chip crystal and RC oscillator Halt function and wake-up feature reduce power consumption 6-level subroutine nesting Bit manipulation instruction 15-bit table read instruction Up to 1ms instruction cycle with 4MHz system clock 63 powerful instructions All instructions in 1 or 2 machine cycles 80/100-pin QFP package General Description The HT49R50 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 suited for use in multiple LCD low power applications among which are calculators, clock timers, games, scales, leisure products, other hand held LCD products, and battery system in particular. 1 October 22, 1999 HT49R50 Block Diagram In te rru p t C ir c u it P ro g ra m E P R O M P ro g ra m C o u n te r S T A C K IN T C T im e r C L K 0 ~ 1 T M R 0 T M R 1 T M R 0 C T M R 1 C M U X T M R 0 ~ 1 In s tr u c tio n R e g is te r M P M U R T C X D A T A M e m o ry W D T T im e B a s ...