HT46RU25/HT46CU25 -- A/D Type 8-Bit MCU

General Description

The HT46RU25/HT46CU25 are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for A/D applications that interface directly to analog signals, such as those from sensors.

The mask version HT46CU25 is fully pin and functionally compatible with the OTP version HT46RU25 device. The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, multi-channel A/D Converter, Pulse Width Modulation function, UART function, I2C interface, HALT and wake-up functions, enhance the versatility of these devices to suit a wide range of A/D application possibilities such as sensor signal processing, motor driving, industrial control, consumer products, subsystem controllers, etc.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • System clock (fSYS): 400kHz~8MHz, 32.768kHz
  • 48 bidirectional I/O lines (max.)
  • One interrupt input shared with an I/O line
  • One 8-bit and two 16-bit programmable timer/event
    counter with prescaler and PFD (programmable frequency divider) function and overflow interrupt
  • 16Kx16 program memory in two banks (Bank 0, 1)
  • 576x8 (192x3) data memory RAM
    (address from 040H~0FFH, bank 0~2)
  • On-chip crystal and RC oscillator
  • Watchdog Timer
  • Supports PFD for sound generation
  • Real Time Clock (RTC) with 8-bit prescaler
  • HALT function and wake-up feature reduce power consumption
  • Up to 0.5us instruction cycle with 8MHz system clock
    at VDD=5V
  • 16-level subroutine nesting
  • 8-channels 12-bit resolution A/D converter
  • 4-channels (6+2)/(7+1)-bit PWM output shared with
    four I/O lines
  • Universal Asynchronous Receiver Transmitter (UART)
  • Bit manipulation instruction
  • 16-bit table read instruction
  • 63 powerful instructions
  • All instructions in one or two machine cycles
  • Low voltage reset function
  • I2C Bus (slave mode)
  • 48/56-pin SSOP package

Technical Document

Other Information