HT46RS03/HT46RS03E/HT46RS03P/HT46RS03PE -- 2K 8-Bit OTP MCU with OPA & Comparator

General Description

The devices are 8-bit, high performance, RISC architecture microcontroller device specifically designed for operational amplifier applications that can be used to interface directly to ultrasonic transducers.

The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, internal comparator, internal operational amplifiers, power-down and wake-up functions, enhance the versatility of these devices to suit a wide range of application possibilities such as remote control appliances, car reversing systems, level meters, etc.

EEPROM memory is incorporated into HT46RS03E or HT46RS03PE device, which is useful for applications that require an area of non-volatile memory, perhaps to store information such as calibration parameters, part numbers etc. Most features are common to all devices, however, they differ in the provision of an LDO and EEPROM as well as package types.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
    fSYS=16MHz: 4.5V~5.5V
  • OTP Program Memory: 2Kx15 ROM
  • RAM Data Memory: 128x8 RAM
  • 16 bidirectional I/O lines
  • External interrupt input shared with an I/O line
  • Single 8-bit programmable Timer/Event Counters with overflow interrupt and 7-stage prescaler
  • Single 16-bit programmable Timer/Event Counter
    with overflow interrupt
  • External crystal and RC oscillator
  • Watchdog Timer function
  • PFD for audio frequency generation
  • Power down and wake-up functions to reduce power consumption
  • Up to 0.25us instruction cycle with 16MHz system clock at VDD=5V
  • 4-level subroutine nesting
  • Bit manipulation instruction
  • Table read instructions
  • 63 powerful instructions
  • All instructions executed in one or two machine cycles
  • Low voltage reset function
  • Three integrated operational amplifiers (OPA)
    - one with programming gain control function
  • Single comparator with interrupt function
  • Embedded 5V LDO in HT46RS03P
  • 128x8 EEPROM in HT46RS03E or HT46RS03PE
  • Range of package types

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