HT66F0175 SSOP20

The HT66F0175 is Flash Memory A/D type 8-bit high performance RISC architecture microcontroller. Offering users the convenience of Flash Memory multi-programming features, these 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 True EEPROM memory for storage of non-volatile data such as serial numbers, calibratuib data, etc.

CPU Features

Operating voltage
fSYS= 8MHz: 2.2V~5.5V
fSYS=12MHz: 2.7V~5.5V
fSYS=20MHz: 4.5V~5.5V
Up to 0.2us instruction cycle with 20MHz system clock at VDD=5V
Power down and wake-up functions to reduce power consumption
Oscillator type
– External High Speed Crystal – HXT
– External 32.768kHz Crystal – LXT
– Internal High Speed RC – HIRC
– Internal 32kHz RC – LIRC
Fully integrated internal 8/12/16 MHz oscillator requires no external components
Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
All instructions executed in one to two instruction cycles
Table read instructions
63 powerful instructions
8-level subroutine nesting
Bit manipulation instruction

Peripheral Features

Program Memory: Up to 4Kx16
Data Memory: Up to 256×8
True EEPROM Memory: Up to 128×8
Watchdog Timer function
Up to 26 bidirectional I/O lines
Two external interrupt lines shared with I/O pins
Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output function
Serial Interfaces Module – SIM for SPI or I2C
Software controlled 6-SCOM/SSEG and 18-SSEG lines LCD driver with 1/3 bias
Programmable I/O port source current for LED applications
Dual Time-Base functions for generation of fixed time interrupt signals
8-channel 12-bit resolution A/D converter
One Comparator function – available in HT66F0185
Fully-duplex Universal Asynchronous Receiver and Transmitter Interface – UART, available in HT66F0185
Low voltage reset function
Low voltage detect function
Flash program memory can be re-programmed up to 100,000 times
Flash program memory data retention > 10 years
True EEPROM data memory can be re-programmed up to 1,000,000 times
True EEPROM data memory data retention > 10 years
Wide range of available package types