microcontroller

(redirected from Micro controller)

microcontroller

[¦mī·krō·kən′trōl·ər]
(electronics)
A microcomputer, microprocessor, or other equipment used for precise process control in data handling, communication, and manufacturing.

microcontroller

(processor)
A microprocessor on a single integrated circuit intended to operate as an embedded system. As well as a CPU, a microcontroller typically includes small amounts of RAM and PROM and timers and I/O ports.

An example is the Intel 8751.

microcontroller

A single chip that contains the processor (CPU), non-volatile memory (flash memory or ROM) for the program, volatile memory (RAM) for processing the data, a clock and an I/O control unit. Microcontroller units (MCUs) are available in numerous sizes and architectures. See CPU, flash memory, ROM, RAM and clock.

They Don't Get the Publicity
Because MCUs contain only 8-, 16- or 32-bit CPUs and cost just a few dollars or even less than one dollar, they do not get the mainstream attention as do the latest 64-bit chips in a PC or graphics card, which cost several hundred dollars. MCUs also do not require the state-of-the-art chip technology (see process technology).

However, MCUs are everywhere, and billions of these "computers on a chip" are embedded in products from toys to appliances to just about anything. New cars can employ a couple hundred of them. For example, an entire MCU might be dedicated to a simple task such as waiting for the driver to close the car door or press a particular button on the dashboard. See embedded system and automotive systems.


Motorola 6801 - One of the First
Introduced in 1978, the 6801 was one of the first semiconductor products to claim the "computer on a chip" moniker. These magnified images show the entire chip (top), about three quarters of the 256 bytes of RAM (left) and only a few bytes at 400x.


Motorola 6801 - One of the First
Introduced in 1978, the 6801 was one of the first semiconductor products to claim the "computer on a chip" moniker. These magnified images show the entire chip (top), about three quarters of the 256 bytes of RAM (left) and only a few bytes at 400x.







They Don't Get Much Smaller
These 8-bit PIC brand microcontrollers from Microchip are used in myriad applications, cost less than 50 cents each and are much more powerful than the 6801. We're not great technology predictors. In 1949, Popular Mechanics speculated that future computers would only weigh "one and a half tons!"







A Microcontroller Behind Everything
Today's cars can have more than a hundred MCUs, each one controlling the simplest function from pressing a button to more complicated systems like the ones in the Honda above.
References in periodicals archive ?
The driver circuit was mainly operated by the Micro Controller. The Micro Controller was change the state of the output pin from the low to high that is from O level to the 1 level.
The Open Source Microlight is not intended to be used only on light shows, but also covers the necessity of very small micro controller developer board.
Here in the circuit ZigBee was used as a Passive radio sensor and also as a receiver device and micro controller works as a sleeping node.
Embedded micro controller (MCU) system-on-chip (SoC) solutions provider Zilog announced on Tuesday its latest motion sensing and control technology suitable for occupancy detection applications, including customer sensing, lighting control and other energy management applications.
The control unit is built around the dsPIC30F6014 16 bit micro controller manufactured by Microchip.
The 3-inch printer has an integrated ST Microelectronics 32 bit micro controller with 4 MB flash and 1 MB SRAM memory, field programmable CPU with firmware, resident fonts, rotated fonts, downloadable fonts, graphics, multiple logos and bar codes.
The newly developed micro controller comes with a CPU core of SH2A-FPU, enabling a processing of 480 million instructions per second (MIPS) on a wavelength of 200 MHz and a floating operation of 400 MFLOPS of powered processing.
Features include serialized data rates up to 780 MB/s and compatibility with pixel and micro controller interfaces.
Solutions can include both application software and micro controller filmware.
For this class, a reliable piece of hardware was needed that would fully exploit the capabilities of the micro controller. An autonomous robot was chosen for the hardware, and, equipped with proper components that used all of the micro controller's capabilities, it was designed to perform specific tasks.
Microchip is a provider of micro controller, mixed-signal, analogue and Flash-IP solutions worldwide.
According to the performance of spark control system, micro controller outlet sends the cut order to the power key and this control circuit can control any load in the net which finally leads to cutting the power key and all the outputs are changed to a special signal.