HT46R01B/02B/01N/02N & HT48R01B/02B/01N/02N -- Small Package 8-Bit OTP MCU

General Description

The Small Package MCUs are a series of 8-bit high performance, RISC architecture microcontrollers specifically designed for a wide range of applications. The usual Holtek microcontroller features of low power consumption, I/O flexibility, timer functions, oscillator options, power down and wake-up functions, watchdog timer and low voltage reset, combine to provide devices with a huge range of functional options while still maintaining a high level of cost effectiveness. The fully integrated system oscillator HIRC, which requires no external components and which has three frequency selections, opens up a huge range of new application possibilities for these devices, some of which may include industrial control, consumer products, household appliances subsystem controllers, etc.

Features

CPU Features

  • Operating voltage:
    fSYS= 4MHz: 2.2V~5.5V
    fSYS= 8MHz: 3.0V~5.5V
    fSYS= 12MHz: 4.5V~5.5V
  • Up to 0.33µs instruction cycle with 12MHz system
    clock at VDD= 5V
  • Sleep mode and wake-up functions to reduce
    power consumption
  • Oscillator types:
    External high frequency Crystal
    External RC
    Internal RC
    External low frequency crystal
    Watchdog Timer internal RC oscillator
  • Three operational modes: Normal, Slow, Sleep
  • Fully integrated internal 4MHz, 8MHz and 12MHz
    oscillator requires no external components
  • OTP Program Memory: 1Kx15 ~ 2Kx15
  • RAM Data Memory: 96x8
  • Watchdog Timer function
  • LIRC oscillator function for watchdog timer
  • All instructions executed in one or two instruction
    cycles
  • Table read instructions
  • 63 powerful instructions
  • 6-level subroutine nesting
  • Bit manipulation instruction
  • Low voltage reset function
  • 10-pin MSOP, 16-pin NSOP package types

Peripheral Features

  • Up to 10 bidirectional I/O lines
  • 4 channel 12-bit ADC
  • 1 channel 8-bit PWM
  • External interrupt input shared with an I/O line
  • Two 8-bit programmable Timer/Event Counter with overflow interrupt and prescaler
  • Time-Base function
  • Programmable Frequency Divider - PFD

Technical Document

Other Information