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HT45FM03B -- Brushless DC Motor Flash Type 8-Bit MCU
General Description
The HT45FM03B is 8-bit, high performance, RISC architecture microcontroller device which includes a host of fully integrated special features specifically designed for brushless DC motor applications.
The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, multi-channel A/D Converter, Pulse Width Modulation function, power-down and wake-up functions, although especially directed at brushless DC motor applications, the enhanced versatility of this device also makes it applicable for use in a wide range of A/D application possibilities such as sensor signal processing, motor driving, industrial control, consumer products, subsystem controllers, etc.
Features
Operating voltage:
fSYS= 0.4~20MHz: 4.5V~5.5V
26 bidirectional I/O lines
External interrupt inputs shared with 4 I/O lines
8-bit programmable Timer/Event Counter with overflow interrupt and 7-stage prescaler
16-bit programmable Timer/Event Counter with overflow interrupt and 7-stage prescaler
4096x15 Flash Program Memory
192x8 Data Memory RAM
On-chip crystal, internal RC and external RC oscillator
Fully integrated internal RC oscillator with three fixed frequencies: 12MHz, 16MHz or 20MHz
Watchdog Timer function
PFD for audio frequency generation
Power down and wake-up functions to reduce power consumption
Up to 0.2us instruction cycle with 20MHz system clock at VDD=5V
8-level subroutine nesting
8 channel 12-bit resolution A/D converter
3 pairs of 10-bit PWM with complementary outputs shared with six I/O lines and with 3 PWM duty control registers
Bit manipulation instruction
Table read instructions
63 powerful instructions
All instructions in one or two machine cycles
Low voltage reset function
Low voltage detect function
Integrated operational Amplifier
Integrated Analog Comparator with interrupt function
Flash program memory can be re-programmed yp to 100,000 times
Flash program memory data retention > 10 years
ICP (In-Circuit Programming) interface
28-pin SOP package