HT48R005/HT46R005 -- Small Package 8-Bit OTP MCU
General Description
The HT46R005 and HT48R005 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. The fully integrated system oscillator HIRC, which requires no external components and which has three frequency selections, opens up a huge range of new application possibilities for these devices, some of which may include industrial control, consumer products, household appliances subsystem controllers, etc.

Features

CPU Features
Operating voltage:
fSYS= 4MHz: 2.2V~5.5V
fSYS= 8MHz: 3.0V~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
Two operational modes: Normal, Sleep
Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external components
OTP Program Memory: 0.5Kx14
RAM Data Memory: 32x8
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-level subroutine nesting
Bit manipulation instruction
Low voltage reset function
Wide range of available package types

Peripheral Features
6 bidirectional I/O lines
3 channel 12-bit ADC
External interrupt input shared with an I/O line
Single 8-bit programmable Timer/Event
Counter with overflow interrupt and prescaler
Buzzer driving pair supported
Package types: 10-pin MSOP