HT49R50A-1/HT49C50-1/HT49C50L
LCD Type 8-Bit MCU
Technical Document
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Tools Information
FAQs
Application Note
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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
HA0075E MCU Reset and Oscillator Circuits Application Note
Features
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Operating voltage:
On-chip crystal, RC and 32768Hz crystal oscillator
f
f
f
SYS=4MHz: 2.2V~5.5V for HT49R50A-1/HT49C50-1
SYS=8MHz: 3.3V~5.5V for HT49R50A-1/HT49C50-1
SYS=500kHz: 1.2V~2.2V for HT49C50L
HALT function and wake-up feature reduce power
consumption
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6-level subroutine nesting
Bit manipulation instruction
15-bit table read instruction
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8 input lines
12 bidirectional I/O lines
Two external interrupt input
Up to 0.5ms instruction cycle with 8MHz system clock
for HT49R50A-1/HT49C50-1
Two 8-bit programmable timer/event counter with
PFD (programmable frequency divider) function
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Up to 8ms instruction cycle with 500kHz system clock
for HT49C50L
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LCD driver with 33´2, 33´3 or 32´4 segments
4K´15 program memory
160´8 data memory RAM
Real Time Clock (RTC)
8-bit prescaler for RTC
Watchdog Timer
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63 powerful instructions
All instructions in 1 or 2 machine cycles
Low voltage reset/detector function
for HT49R50A-1/HT49C50-1
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48-pin SSOP, 64-pin LQFP and
100-pin LQFP packages
Buzzer output
General Description
The HT49R50A-1/HT49C50-1/HT49C50L are 8-bit,
high performance, RISC architecture microcontroller
devices specifically designed for a wide range of LCD
applications. The mask version HT49C50-1 and
HT49C50L are fully pin and functionally compatible with
the OTP version HT49R50A-1 device. The HT49C50L
is a low voltage version, with the ability to operate at a
minimum power supply of 1.2V, making it suitable for
single cell battery applications.
The advantages of low power consumption, I/O flexibil-
ity, programmable frequency divider, timer functions,
oscillator options, HALT 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 possi-
bilities such as measuring scales, electronic multi-
meters, gas meters, timers, calculators, remote
controllers and many other LCD-based industrial and
home appliance applications.
Rev. 2.40
1
July 30, 2012