HT56R64 -- TinyPowerTM A/D Type with LCD 8-Bit OTP MCU

General Description

The HT56R64 is a TinyPower(TM) A/D Type with LCD 8-bit high performance RISC architecture microcontroller, designed especially for applications that interface directly to analog signals and which require an LCD interface. The device includes an integrated multi-channel Analog to Digital Converter, four Pulse Width Modulation outputs and an LCD driver.

With its 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, LCD, 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 device 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.

Features

  • Operating voltage:
    fSYS=32768Hz: 2.2V~5.5V
    fSYS=4MHz: 2.2V~5.5
    fSYS=8MHz: 3.3V~5.5V
    fSYS=12MHz: 4.5V~5.5V
  • OTP Program Memory: 4Kx15
  • RAM Data Memory: 192x8
  • 24 bidirectional I/O lines
  • TinyPower technology for low power operation
  • Three pin-shared external interrupts lines and segment
  • Single 8-bit programmable Timer/Event Counter
    with overflow interrupt and 7-stage prescaler
  • Single 16-bit programmable Timer/Event Counter with overflow interrupt
  • External Crystal, RC, RTC oscillator
  • Fully integrated 32KHz oscillator
  • Externally supplied system clock option
  • Watchdog Timer function
  • PFD/Buzzer for audio frequency generation
  • Dual Serial Interfaces: SPI and I2C
  • LCD driver: 33x2, 33x3 or 32x4
  • 4 operating modes: normal, slow, idle and sleep
  • 8-level subroutine nesting
  • 8-channel 12-bit resolution A/D converter
  • 4-channel 12-bit PWM output shared with I/O lines
  • Low voltage reset function -- 2.1V, 3.15V, 4.2V
  • Low voltage detect function -- 2.2V, 3.3V, 4.4V
  • Bit manipulation instruction
  • 15-Bit 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
  • Power down and wake-up functions to reduce power consumption
  • 52/100-pin QFP, 64-pin LQFP packages

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