General Description
The HT48R006 and HT46R006 are a series of 8-bit high performance, RISC architecture microcontrollers specifically designed for a wide range of applications. The usual Holtek microcontroller features of low power consumption, I/O flexibility, timer functions, oscillator options, power down and wake-up functions, watchdog timer and low voltage reset, combine to provide devices with a huge range of functional options while still maintaining a high level of cost effectiveness.

Features
CPU Features
● Operating voltage:
   fSYS= 4MHz: 2.2V~5.5V
   fSYS= 8MHz: 3.0V~5.5V
   fSYS= 12MHz: 4.5V~5.5V
● Up to 0.33μs instruction cycle with 12MHz system
   clock at VDD= 5V
● Sleep mode and wake-up functions to reduce
   power consumption
● Oscillator types:
   External high freuency Crystal -- HXT
   External RC -- ERC
   Internal RC -- HIRC
   External low frequency crystal -- LXT
● Three operational modes: Normal, Slow, Sleep
● Fully integrated internal 4MHz, 8MHz and 12MHz
   oscillator requires no external components
● OTP Program Memory: 1Kx14 or 1Kx15
● RAM Data Memory: 64x8 ~ 96x8
● Watchdog Timer function
● LIRC oscillator function for watchdog timer
● All instructions executed in one or two instruction cycles
● Table read instructions
● 63 powerful instructions
● 2~6-level subroutine nesting
● Bit manipulation instruction
● Low voltage reset function

Peripheral Features
● 6 bidirectional I/O lines
● 3 channel 12-bit ADC
● 1 channel 8-bit PWM
● External interrupt input shared with an I/O line
● 1~2 8-bit programmable Timer/Event
   Counter with overflow interrupt and prescaler
● Time-Base function
● Programmable Frequency Divider - PFD
● Buzzer driving pair supported
● 10-pin MSOP package