HT49RU80 Datasheet, PDF (1/54 Pages) Holtek Semiconductor Inc – LCD Type 8-Bit MCU

HT49RU80/HT49CU80
LCD Type 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0017E Controlling the Read/Write Function of the HT24 Series EEPROM Using the HT49 Series MCUs
- HA0024E Using the RTC in the HT49 MCU Series
- HA0025E Using the Time Base in the HT49 MCU Series
- HA0026E Using the I/O Ports on the HT49 MCU Series
- HA0027E Using the Timer/Event Counter in the HT49 MCU Series
Features
· Operating voltage:
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
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}
· Buzzer output
· On-chip crystal, RC and 32768Hz crystal oscillator
· HALT function and wake-up feature reduce power
consumption
· 16-level subroutine nesting
· UART - Universal Asynchronous Receiver
Transmitter
· 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
· _{64-pin LQFP and 100-pin QFP packages}
General Description
These devices are 8-bit, high performance, RISC archi-
tecture microcontrollers specifically designed for a wide
range of LCD applications. The mask version, the
HT49CU80, is fully pin and functionally compatible with
the OTP version HT49RU80 device.
The advantages of low power consumption, I/O flexibil-
ity, 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 ap-
plication possibilities such as measuring scales, elec-
tronic multimeters, gas meters, timers, calculators,
remote controllers and many other LCD-based indus-
trial and home appliance applications.
Rev. 1.20
1
December 16, 2009