Overview
Higher performance, advanced integration and reduced system costs are among the benefits generated by the MC68HC908MR32 and the MC68HC908MR16, Freescale Semiconductor’s highly integrated 8-bit Flash microcontrollers (MCUs) designed for enhanced electronic motion control. Engineered for applications as varied as smart appliances, automotive subsystems, industrial controls and uninterruptable power supplies, the MC68HC908MR32 and the MC68HC908MR16 include 6-channel, 12-bit pulse-width modulation (PWM) for a comprehensive AC motor timer solution supporting both center- and edge-aligned modes with automatic dead-time insertion and patented dead-time compensation capability. This leading-edge technology promotes versatility, while lowering costs with greater flexibility allowing configuration for several drive topographies in various motor types.
High-Performance 68HC08 CPU Core
> 8 MHz bus operation at 5V operation for 125 ns minimum instruction cycle time
> Efficient instruction set, including multiply and divide
> 16 flexible addressing modes, including stack relative with 16-bit stack pointer
> Fully static, low-voltage, low-power design with wait and stop modes
> Object code compatible with the 68HC05
> Easy to learn and use architecture
> C-optimized architecture provides compact code
Integrated Second-Generation Flash Memory
> In-application reprogrammable
> Extremely fast programming, encoding 64B in as fast as 2 ms
> Flash programming across the 68HC08’s full operating supply voltage with no extra programming voltage
> 10K write/erase cycles minimum over temperature
> Flexible block protection and security
> Cost-effective programming changes and field software upgrades via in-application programmability and reprogrammability
> Reduces production programming costs through ultra-fast programming
> Byte-writable for data as well as program memory
> Protects code from unauthorized reading and guards against unintentional writing/erasing of user-programmable segments of code
10-bit Analog-to-Digital Converter (ADC)
> 10 channels
> Single conversion in 17 µs
> Provides single or continuous conversion
> Generates an interrupt when input signal exceeds a software programmable limit
12-bit Pulse-Width Modulation for Motor Control (PWMMC)
> Three complementary or six independent PWM signals
> Programmable output polarity
> Edge- or center-aligned waveforms
> Automatic dead-time generation/compensation
> 20 mA sink on all PWMMC pins
> Programmable fault detection
> Provides multiple motor or multiphase control capability
> Reduces system cost through integration of digital-to-analog circuitry
> Includes patented distortion correction circuitry that dramatically reduces system noise and improves efficiency of the drive without the need for external current sensors
> Allows direct drive of the optocoupling stage
> Guarantees immediate shutdown of the PWM outputs, ensuring motor and consumer safety
Clock Generation Module with Phase-Lock Loop (PLL)
> Programmable clock frequency in integer multiples of external crystal reference
> Crystal reference of 1 MHz to 8 MHz
> External clock option with or without PLL
> Provides high performance using low-cost, low-frequency reference crystals
> Reduces generated noise while still providing high performance (up to 32 MHz internal clock)
Target Applications
> Appliance compressors
> Smart appliances
> Industrial compressors (HVAC)
> Variable speed pumps (well, gas)
> HVAC blowers and fans
> General-purpose drives
> Exercise equipment
> Electric-powered recreational vehicles
> Medical scanners/pumps
> Printers/scanners/fax machines
> Electric lawn equipment
> Throttle control
> Seat module control
> Uninterruptable power supplies
Here is the detailed information of the microcontroller MC68HC908MR16CB. As a home of imported sensors, modern hero technologies(shenzhen)CO.,LTD has perfect technical services and pre - sales and after - sales support. If necessary, please contact us.
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