HT45R38 -- C/R to F Type 8-Bit OTP MCU

General Description

The HT45R38 is an 8-bit high performance, RISC architecture microcontroller device specifically designed for cost-effective multiple I/O control product applications.

The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, Power Down and wake-up functions, Watchdog Timer, enhance the versatility of these devices to suit a wide range of application possibilities such as industrial control, consumer products, subsystem controllers, etc.

Features

  • Operating voltage:
    fSYS=4MHz: 2.2V~5.5V
    fSYS=8MHz: 3.3V~5.5V
  • 29 bidirectional I/O lines
  • Two external interrupt inputs shared with I/O lines
  • Single 8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler
  • One 8-bit programmable timer/event counter with
    overflow interrupt
  • 5 channels 12-bit resolution A/D converter
  • 2-channels 8-bitPWMoutput shared with 2 I/O lines
  • One OPA
  • External RC oscillation converter
  • On-chip crystal and RC oscillator
  • Watchdog Timer
  • 12 capacitor/resistor sensor input
  • 4096x15 program memory
  • 192x8 data memory RAM
  • Power Down and Wake-up function reduce power
    consumption
  • Up to 0.5ms instruction cycle with 8MHz system clock at VDD=5V
  • All instructions executed in one or two machine cycles
  • 15-bit table read instruction
  • Six-level subroutine nesting
  • Bit manipulation instruction
  • 63 powerful instructions
  • Low voltage reset function
  • 52-pin QFP package

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