HT45R52/HT45R54 -- TinyPowerTM Multi-Channel A/D Type 8-Bit OTP MCU (限用產品)

General Description

These TinyPowerTM Multi-Channel A/D Type 8-bit high performance RISC architecture microcontrollers are specifically, designed for applications that interface directly to analog signals. The devices include an integrated multi-channel Analog to Digital Converter, Pulse Width Modulation outputs and an Operational Amplifier.

With their fully integrated SPI and I2C functions, designers are provided with a means of easy communication with external peripheral hardware. The benefits of integrated A/D, OPA, and PWM functions, in addition to low power consumption, high performance, I/O flexibility and low-cost, provides the device with the versatility for a wide range of products in the home appliance and industrial application areas. Some of these products could include electronic metering, environmental monitoring,
handheld instruments, electronically controlled tools, motor driving in addition to many others.

The unique Holtek TinyPower technology also gives the devices extremely low current consumption characteristics, an extremely important consideration in the present trend for low power battery powered applications. The usual Holtek MCU features such as power down and wake-up functions, oscillator options, programmable frequency divider, etc. combine to ensure user applications require a minimum of external components.

CPU Features

  • Operating voltage:
    fSYS=32kHz: 2.2V~5.5V
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.0V~5.5V
    fSYS=12MHz: 4.5V~5.5V
  • OTP Program Memory: 2Kx15 or 4Kx15
  • RAM Data Memory: 192x8 or 384x8
  • 18 or 26 bidirectional I/O lines
  • TinyPower technology for low power operation
  • Two pin-shared external interrupts lines
  • Multiple programmable Timer/Event Counters
    with overflow interrupt and 7-stage prescaler
  • External Crystal, external RC and internal RC oscillators
  • Fully integrated 32kHz oscillator
  • Externally supplied system clock option
  • Watchdog Timer function
  • LIRC oscillator function for watchdog timer
  • PFD/Buzzer for audio frequency generation
  • Serial Interface Module - SPI or I2C
  • 4 operating modes: normal, slow, idle and sleep
  • Multiple level subroutine nesting
  • 12 or 20-channel 12-bit resolution A/D converter
  • Integrated operational amplifier
  • 2 or 4-channel 12-bit PWM outputs
  • Low voltage reset function: 2.1V, 3.15V, 4.2V
  • Low voltage detect function: 2.2V, 3.3V, 4.4V
  • Bit manipulation instruction
  • Table read instructions
  • 63 powerful instructions
  • Up to 0.33us instruction cycle with 12MHz system clock at VDD=5V
  • All instructions executed in one or two machine
    cycles
  • Idle/Sleep mode and wake-up functions to reduce power consumption
  • Time-Base interrupt
  • Wide range of available package types

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