HT48R52A - Holtek Semiconductor

HT48R52A I/O Type 8-Bit OTP MCU

This device is an 8-bit high performance, RISC architecture microcontroller specifically designed for multiple I/O control product applications. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, HALT and wake-up functions, watchdog timer, as well as low cost, enhance the versatility of these devices to suit a wide.

Features

· Operating voltage:
· Dual clock system offers three operating modes - Normal mode: Both RC and 32768Hz clock active - Slow mode: 32768Hz clock only - Idle mode: Periodical wake-up by watchdog timer fSYS=32768Hz: 2.2V~5.5V fSYS=4MHz: 2.2V~5.5V fSYS=8MHz: 3.3V~5.5V
· 2k´14 program memory ROM
· 88´8 data memory RAM
· 16 bidirectional I/O lines
· 24 output lines
· One external interrupt input
· One internal interrupt
· 8 bit programmable timer/event counter
· 4-level subroutine nesting
· Watchdog Timer (WDT)
· Low voltage reset (LVR)
· External RC and 32768Hz crystal oscillator overflow
· HALT.