Description
HT68F0021 Holtek General Purpose 8-Bit Flash MCU – Small Package Flash MCU with EEPROM 8MHz: 1.8V-5.5V 16NSOP RoHS
he devices are Flash Memory 8-bit high performance RISC architecture microcontrollers. Offering users the convenience of Flash Memory multi-programming features, the devices also include a wide range of functions and features. Other memory includes an area of RAM Data Memory as well as an area of Emulated EEPROM memory for storage of non-volatile data such as serial numbers, calibration data, etc.
A single extremely flexible Timer/Event Counter provides timing, event counting and pulse wide capture functions. A Pulse Width Modulator provides an 8-bit PWM output. An internal Watchdog Timer coupled with excellent noise immunity and ESD protection ensures that reliable operation is maintained in hostile electrical environments.
A full choice of internal high and low speed oscillators are provided and the two fully integrated system oscillators require no external components for their implementation. The ability to operate and switch dynamically between a range of operating modes using different clock sources gives users the ability to optimize microcontroller operation and minimize power consumption.
The inclusion of flexible I/O programming features and Time-Base funciton along with other features ensure that the devices will find excellent use in electronic metering, environmental monitoring, handheld instruments, household appliances, electronically controlled tools, motor driving in addition to many others.
CPU Features
Operating voltage
fSYS=8MHz: 1.8V~5.5V
Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V
Power down and wake-up functions to reduce power consumption
Oscillator types
– Internal High Speed RC HIRC
– Internal Low Speed 32kHz RC LIRC
Multi-mode operation: FAST, SLOW, IDLE and SLEEP
Fully integrated internal oscillators require no external components
All instructions executed in one or two instruction cycles
Table read instructions
63 powerful instructions
2-level subroutine nesting
Bit manipulation instruction
Peripheral Features
Flash Program Memory: 1K14
RAM Data Memory: 648
Emulated EEPROM Memory: 3214
Watchdog Timer function
Up to 14 bidirectional I/O lines
One pin-shared external interrupt
One 8-bit programmable Timer/Event Counter with overflow interrupt and prescaler
1-channel 8-bit PWM output shared with I/O line
Single Time-Base function for generation of fixed time interrupt signals
Package types: 8-pin SOP and 16-pin NSOP
Manufacturer: Electronic Components
MFG Part #: HT68F0021
