Holtek HT46R73D-3 8位OTP MCU应用方案

盛群半导体(Holtek)公司推出的HT46R73D-3是双斜率ADC 8位OTP MCU, 包含有4KB OTP 程序内存、128 B数据存储器、2个16位计时器及1个8位计时器，另具备Buzzer硬件输出功能。配有丰富及多样化的外围功能，特别适用于电桥式传感器的量测系统，可用来量测压力、温度、湿度变化的产品，如：体重计、压力计、温度计、湿度计、胎压计等。本文介绍了HT46R73D-3主要特性, 方框图, 桥接传感器输入的双斜率ADC连接图和典型应用电路.

The HT46R73D-3 is an 8-bit high performance, RISC architecture microcontroller device specifically designed for A/D with LCD applications that interface directly to analog signals, such as those from sensors.

The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, Dual slope A/D converter, LCD display, HALT and wake-up functions, watchdog timer, as well as low cost, enhance the versatility of these devices to suit for a wide range of AD with LCD application possibilities such as sensor signal processing, scales, consumer products, subsystem controllers, etc.

HT46R73D-3主要特性:

_ Operating voltage:

fSYS=4MHz: 2.2V~5.5V

fSYS=8MHz: 3.3V~5.5V

_ Three system oscillators:

External Crystal oscillator

External RC oscillator

Internal RC oscillator

_ Up to 16 bidirectional I/O lines

_ One external interrupt input shard with an I/O lines
..

查看全文