HT49R70A-1_12 Datasheet, PDF (1/44 Pages) Holtek Semiconductor Inc – LCD Type 8-Bit MCU

HT49R70A-1/HT49C70-1/HT49C70L
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
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V for HT49R70A-1/HT49C70-1
f_SYS=8MHz: 3.3V~5.5V for HT49R70A-1/HT49C70-1
f_SYS=500kHz: 1.2V~2.2V for HT49C70L
· 8 input lines
· 16 bidirectional I/O lines
· Two external interrupt input
· One 8-bit and one 16-bit programmable timer/event
counter with PFD (programmable frequency divider)
function
· LCD driver with 41´2, 41´3 or 40´4 segments
· 8K´16 program memory
· _{224´8 data memory RAM}
· _{Real Time Clock (RTC)}
· _{8-bit prescaler for RTC}
· _{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
· Bit manipulation instruction
· 16-bit table read instruction
· Up to 0.5ms instruction cycle with 8MHz system clock
for HT49R70A-1/HT49C70-1
· Up to 8ms instruction cycle with 500kHz system clock
for HT49C70L
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· _{Low voltage reset/detector functions for}
HT49R70A-1/HT49C70-1
· _{64-pin LQFP and 100-pin LQFP packages}
General Description
The HT49R70A-1/HT49C70-1/HT49C70L are 8-bit,
high performance, RISC architecture microcontroller
devices specifically designed for a wide range of LCD
applications. The mask version HT49C70-1 and
HT49C70L are fully pin and functionally compatible with
the OTP version HT49R70A-1 device. The HT49C70L
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