HOLTEK

HT48R50A-1
8-Bit I/O Type OTP MCU
 Features

Operating voltage:

Watchdog Timer
---fSYS=4MHz: 3.3V~5.5V 4096x15 program memory ROM
---fSYS=8MHz: 4.5V~5.5V 160x8 data memory RAM
Low voltage reset function Buzzer driving pair and PFD supported
35 bidirectional I/O lines (max.) HALT function and wake-up feature reduce
1 interrupt input shared with an I/O line ---power consumption
8-bit programmable timer/event counter 6-level subroutine nesting
---with overflow interrupt and 8-stage Up to 0.5us instruction cycle with 8MHz
---prescaler ---system clock at VDD=5V
16-bit programmable timer/event counter Bit manipulation instruction
---and overflow interrupts 15-bit table read instruction
On-chip RC oscillator, external crystal 63 powerful instructions
--and RC oscillator All instructions in one or two machine cycles
32768Hz crystal oscillator for timing 28-pin SKDIP/SOP, 48-pin SSOP package
---purposes only  
 General Description
This device is an 8-bit high performance RISC-like microcontroller designed for multiple I/O
product applications. It is particularly suitable for use in products such as remote controllers,
fan/light controllers, washing machine controllers, scales, toys and various subsystem
controllers. A HALT feature is included to reduce power consumption.