HT46R71D Datasheet, PDF (1/46 Pages) Holtek Semiconductor Inc – A/D with LCD Type 8-Bit MCU

HT46R71D
A/D with LCD Type 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0003E Communicating between the HT48 & HT46 Series MCUs and the HT93LC46 EEPROM
- HA0004E HT48 & HT46 MCU UART Software Implementation Method
- HA0005E Controlling the I2C bus with the HT48 & HT46 MCU Series
- HA0007E Using the MCU Look Up Table Instructions
- HA0049E Read and Write Control of the HT1380
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
· 10 bidirectional I/O lines and two ADC input
· One external interrupt input shard with an I/O lines
· One 8-bit and one 16-bit programmable timer/event
counter with overflow interrupt a 7-stage pre-scalar
· LCD driver with 10´3 segments
· 2K´14 program memory
· 32´8 data memory RAM
· Single differential input channel dual slope Analog to
Digital Converter with Operational Amplifier.
· Watchdog Timer
· Buzzer output
· Internal 12kHz RC oscillator
· RC oscillator
· HALT function and wake-up feature reduce power
consumption
· Voltage regulator (3.3V) and charge pump
· Embeded voltage reference generator (1.5V)
· 4-level subroutine nesting
· Bit manipulation instruction
· 14-bit table read instruction
· Up to 1ms instruction cycle with 4MHz system clock
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· Low voltage reset/detector function
· 48-pin SSOP package
General Description
The HT46R71D is an 8-bit, high performance, RISC ar-
chitecture microcontroller device specifically designed
for A/D product applications that interface directly to an-
alog signals and which require an LCD Interface.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, multi-channel A/D
Converter, LCD display, HALT and wake-up functions,
in addition to a flexible and configurable LCD interface
enhance the versatility of these devices to control a
wide range of applications requiring analog signal pro-
cessing and LCD interfacing, such as electronic meter-
ing, environmental monitoring, handheld measurement
tools, motor driving, etc., for both industrial and home
appliance application areas.
Rev. 1.00
1
January 9, 2006