HT49CU80 Datasheet | Holtek Semiconductor

Features - Operating voltage: - Buzzer output - On-chip crystal, RC and 32768Hz crystal oscillator - HALT function and wake-up feature reduce power f SYS=4MHz: 2.2V~5.5V f SYS=8MHz: 3.3V~5.5V - 8 input lines and 7 output lines - 16 bidirectional I/O lines - Two external interrupt inputs - One 8-bit and two 16-bit programmable timer/event consumption - 16-level subroutine nesting - UART - Universal Asynchronous Receiver Transmit- ter - Bit manipulation instruction - 16-bit table read instruction - Up to 0.5ms instruction cycle with 8MHz system clock - 63 powerful instructions - All instructions executed within 1 or 2 machine cycles - Low voltage reset/detector functions - 100-pin QFP package counters with PFD - programmable frequency divider function - LCD driver with 48´2, 48´3 or 47´4 segments - 16K´16 program memory - 576´8 data memory RAM - Real Time Clock - RTC - RTC 8-bit prescaler - Watchdog Timer General Description These devices are 8-bit, high performance, RISC architecture microcontrollers specifically designed for a wide range of LCD applications. The mask version, the HT49CU80, is fully pin and functionally patible with the OTP version HT49RU80 device. The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, power-down and wake-up functions and buzzer driver in addition to a flexible and configurable LCD interface, enhance the versatility of these devices to control a wide range of LCD-based application possibilities such as measuring scales, electronic multimeters, gas meters, timers, calculators, remote controllers and many other LCD-based industrial and home appliance applications. The HT49CU80 is under development and will be available soon. Rev. 1.00 June 1, 2006 Data Sheet 4 U . .. HT49RU80/HT49CU80 Block Diagram IN T 0 , IN T 1 T M R 0 C T M R 0 In te rru p t C ir c u it P ro g ra m M e m o ry P ro g ra m C o u n te r S T A C K IN T C P F D 0 T M R 1 C T M R 1 P F D 1...