MC908QB4MDWER

MC908QB4MDWER Datasheet

MC908QB8/4

Part	Datasheet
MC908QB4MDWER	MC908QB4MDWER (pdf)

PDF Datasheet Preview
8-bit Microcontrollers MC908QB8/4 Target Applications > Discrete replacement > Appliances > Control systems > Home and industrial security systems > Fluorescent light ballasts > Electromechanical replacement > Motion control Overview Freescale Semiconductor’s MC908QB8/4 microcontrollers MCUs help reduce system cost by eliminating the need for external low-voltage inhibit LVI , external drivers with high-current input/output I/O and external data EEPROM and help reduce programming cost with fast Flash programming. Other valuable features include a 10-bit analog-to-digital converter ADC and an internal clock oscillator. It helps maximize efficiency and speed time to market with the ability to change code in-application with Flash and free professional-quality development tools including a C compiler, simulator, assembler, linker, Flash programmer and auto-code generator, all specifically geared to function with Freescale’s QY/QB lines of MCUs. HC08 CPU 4 KB/8 KB Flash KBI 256 B RAM COP LVI 10 ch.,10-bit ADC 4-ch.,16-bit Timer Up to 13 GPIO ESCI Features High-Performance 68HC08 CPU Core > 8 MHz bus operation at 5V operation for 125 ns minimum instruction cycle time > 4 MHz bus operation at 3V operation for 250 ns minimum instruction cycle time > Efficient instruction set, including multiply and divide > 16 flexible addressing modes, including stack relative with 16-bit stack pointer Integrated Second-Generation Flash Memory > In-application reprogrammable > Extremely fast programming • As fast as 32 us/byte • Up to 100x faster than most embedded Flash > Flash easily used for data EEPROM • 10K minimum write/erase cycles across temperature • 100K typical • Byte writeable • No restrictions or special instructions to access data in Flash program memory > Flexible block protection and security > Easy to learn and use architecture > Object compatible with 68HC05 > Allows for efficient, compact modular coding in assembly or C compiler > Cost-effective programming changes and field software upgrades via in-application programmability and reprogrammability > Virtually eliminates scrap, costly rework and cost of socket > The benefits of Flash at competitive one-time programmable OTP prices > Helps to reduce production programming costs through ultra-fast programming > Helps to reduce power and speed application when writing nonvolatile data is required > Virtually eliminates the need and cost for external serial data EEPROM > Easily performs table lookup and data manipulation without slow and cumbersome special table instructions > Helps to protect code from unauthorized reading > Guards against unintentional writing/erasing of user-programmable segments of code Internal Clock Oscillator > MHz nominal bus frequency > ± 25 percent trimmable > ± 5 percent accurate to 125°C > ± 2 percent typical Up to 13 Bidirectional Input/Output I/O Lines > High-current drive > Programmable pull-ups/keyboard interrupt

PDF Datasheet Preview

8-bit Microcontrollers

MC908QB8/4

Target Applications
> Discrete replacement
> Appliances
> Control systems
> Home and industrial security systems
> Fluorescent light ballasts
> Electromechanical replacement
> Motion control

Overview Freescale Semiconductor’s MC908QB8/4 microcontrollers MCUs help reduce system cost by eliminating the need for external low-voltage inhibit LVI , external drivers with high-current input/output I/O and external data EEPROM and help reduce programming cost with fast Flash programming. Other valuable features include a 10-bit analog-to-digital converter ADC and an internal clock oscillator. It helps maximize efficiency and speed time to market with the ability to change code in-application with Flash and free professional-quality development tools including a C compiler, simulator, assembler, linker, Flash programmer and auto-code generator, all specifically geared to function with Freescale’s QY/QB lines of MCUs.

HC08 CPU
4 KB/8 KB Flash KBI
256 B RAM

COP LVI 10 ch.,10-bit ADC
4-ch.,16-bit Timer

Up to 13 GPIO

ESCI

Features High-Performance 68HC08 CPU Core > 8 MHz bus operation at 5V operation for
125 ns minimum instruction cycle time > 4 MHz bus operation at 3V operation for
250 ns minimum instruction cycle time > Efficient instruction set, including multiply
and divide > 16 flexible addressing modes, including stack
relative with 16-bit stack pointer

Integrated Second-Generation Flash Memory
> In-application reprogrammable
> Extremely fast programming
• As fast as 32 us/byte
• Up to 100x faster than most embedded Flash
> Flash easily used for data EEPROM
• 10K minimum write/erase cycles across temperature
• 100K typical
• Byte writeable
• No restrictions or special instructions to access data in Flash program memory
> Flexible block protection and security
> Easy to learn and use architecture > Object compatible with 68HC05 > Allows for efficient, compact modular
coding in assembly or C compiler
> Cost-effective programming changes and field software upgrades via in-application programmability and reprogrammability
> Virtually eliminates scrap, costly rework and cost of socket
> The benefits of Flash at competitive one-time programmable OTP prices
> Helps to reduce production programming costs through ultra-fast programming
> Helps to reduce power and speed application when writing nonvolatile data is required
> Virtually eliminates the need and cost for external serial data EEPROM
> Easily performs table lookup and data manipulation without slow and cumbersome special table instructions
> Helps to protect code from unauthorized reading
> Guards against unintentional writing/erasing of user-programmable segments of code

Internal Clock Oscillator > MHz nominal bus frequency > ± 25 percent trimmable > ± 5 percent accurate to 125°C > ± 2 percent typical

Up to 13 Bidirectional Input/Output I/O Lines > High-current drive > Programmable pull-ups/keyboard interrupt

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MC908QB4MDWER Datasheet file may be downloaded here without warranties.

Datasheet ID: MC908QB4MDWER 635504