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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.
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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
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