Features: · Operating voltage:
fSYS=4MHz: 2.2V~5.5V
fSYS=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 482, 483 or 474 segments
· 16K16 program memory
· 5768 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 0.5s 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 packageApplication· 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 SeriesPinout
SpecificationsSupply Voltage .........................VSS-0.3V to VSS+6.0V
Storage Temperature ...........................-50 to 125
CInput Voltage..........................VSS-0.3V to VDD+0.3V
Operating Temperature...........................-40 to 85
IOL Total ...........................................................150mA
IOH Total..........................................................-100mA
Total Power Dissipation ...................................500mW
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.DescriptionThese 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 compatible 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 HT49RU80 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.
HT49RU80 Data Sheet
