HT46RU26/HT46CU26 -- A/D Type 8-Bit MCU with UART

General Description

The HT46RU26/HT46CU26 is an 8-bit high performance RISC architecture microcontrollers, designed especially for applications that interface directly to analog signals, such as those from sensors.

The device includes an integrated multi-channel Analog to Digital Converter in addition to four Pulse Width Modulator
outputs. 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.

With a fully integrated UART function and both SPI and I2C interfaces, a convenient means is provided for easy and efficient interfacing to external personal computers or other external hardware.

The benefits of these combined integrated functions, in addition to low power consumption, high performance, I/O flexibility and low-cost, provide these devices with the versatility to suit a wide range of application possibilities such as sensor signal processing, motor driving, industrial control, consumer products, subsystem controllers, etc.

The HT46CU26 is under development and will be available soon.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • 48 bidirectional I/O lines
  • External interrupt input shared with I/O line
  • Single 8-bit Timer/Event Counter
  • Two 16-bit Programmable Timer/Event Counters
  • 32x16 Program Memory in 4 banks
  • 768x8 byte Data Memory in 4 banks
  • Integrated Crystal and RC oscillators
  • Watchdog Timer function
  • PFD for audio frequency generation
  • Power down and wake-up functions to reduce power consumption
  • Up to 0.5us instruction cycle with 8MHz system clock at VDD=5V
  • 16-level subroutine nesting
  • 8-channel 12-bit resolution A/D converter
  • 4-channel 8-bit PWM outputs shared with I/O lines
  • Real Time Clock with 8-bit prescaler
  • Universal Asynchronous Receiver Transmitter -- UART
  • I2C Bus slave function
  • SPI Bus
  • Bit manipulation instructions
  • Table read instructions
  • 63 powerful instructions
  • All instructions executed in one or two machine cycles
  • Low voltage reset function
  • 48/56-pin SSOP package types

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