Atmel's low power, high performance AVR MCUs handle demanding 8-bit applications. Featuring a single cycle instruction RISC CPU, the AVR ensures fast code execution with low power consumption. A free development environment and compiler are another benefit of the architecture.

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Atmel's Field Programmable System Level ICs (FPSLIC) combine all the basic systems building blocks in an SRAM based device. FPSLIC devices combine FPGA architecture, a 20 MIPs AVR MCU, numerous peripherals, and 36KB of SRAM.

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Based on a M8C 8-Bit CPU core, Cypress Semiconductor's PSoC (Programmable System on a Chip) microcontroller offers a very unique and configurable approach to embedded designs. The devices include up to 16 digital and 12 analog blocks, as well as configurable routing and interconnect networks. These blocks allow designers to create and quickly change advanced mixed-signal embedded applications. In addition to this flexibility, any signal can be routed to any pin on the MCU package.

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Considered a legacy device by Freescale, the 8-Bit HC05 family MCU features OTP program memory sizes of 1.2KB to 32KB, and processor speeds of 2.1MHZ and 4MHz. The series is available in several surface mount and through hole package variations.

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The HC08 family of MCUs is designed to meet many design needs, from its tiny 8-pin QFN to 64-pin quad flat packages, flash to ROM, and from 1 KB to 60 KB of memory. The HC08 family features peripherals such as an in-circuit reprogrammable FLASH, 8- or 10-bit A/D converters, multi-channel timers, CAN, LIN, J1850, SCI/ESCI/SLIC supporting LIN protocol, SPI and EEPROM. There are also many devices targeted for specific applications, such as LIN, motor control and RF. All HC08 MCUs utilize the enhanced M68HC08 central processor unit (CPU08) and are available with a variety memory sizes and types, modules and package types.

Also considered a legacy device by Freescale, the 8-Bit HC11 family MCU features OTP program memory sizes of 4KB to 20KB, and processor speeds of 2MHZ and 3MHz. The series is available in 44, 52, 68, and 84-PLCC package cases with a varying number of I/O pins up to 38.

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The HCS08 family is a high-performance, low-power solution, providing 1.8 V operation. It features multiple power management modes, including a 20nA power-down mode. Other features of this product family are a zero-component auto wakeup; a programmable internal clock generator, complete with temperature and voltage compensation; and high peripheral integration. This includes up to 98 timer/PWMs, four serial communication ports and an 8-channel, 10-bit analog-to-digital converter.

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Freescale's RS08 MCU core is a reduced version of the S08 central processing unit (CPU) that has been specifically designed for small pin-count devices with under 16KB memory. Thirty percent smaller than the S08 CPU, it is more efficient and cost-effective for simple electro-mechanical devices that are migrating to fully solid-state electronic operation or portable devices that have evolved into smaller or even disposable versions.

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Fujitsu's LPC MCUs feature high-performance, low-voltage, embedded flash, a precision on-chip RC oscillator, and an on-chip debug feature. The MB95200 series includes a complete range of single-chip standard microcontrollers with between 8 and 24 pins, powered by an optimized core and featuring low-leakage technology and embedded flash.

The PIC10 is a low-cost, high-performance, 8-bit, Flash-based CMOS microcontroller. It employs a RISC architecture with only 33 single-word / single-cycle instructions.

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Available in several 8-pin small form factor packages, the PIC12 series features up to a 20MHz internal oscillator, ICSP capability, and an 8-Bit timer/counter.

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The midrange PIC16 family offers a wide range of memory sizes (512B, 1KB, 2KB, 4KB, and 8KB), peripheral options (8 and 16-Bit timers, I2C, SPI, UARTs) and I/O counts (6 to 53). Utilizing a 14-bit instruction word, these microcontrollers are ideal for multi-dimensional applications.

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Microchip's PIC18 family includes products ranging from 18 to 100 pins and 2KB to 128KB Flash sizes. Also, the series offers several variations specifically tailored for low-power, Ethernet, USB, or LCD based applications.

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A BASIC Stamp is a single-board computer that runs the Parallax PBASIC language interpreter in its microcontroller. The developer's code is stored in an EEPROM, which can also be used for data storage. The BASIC Stamp microcontroller has prospered in hobby, lower-volume engineering projects and education due to ease of use and a wide support base of free application resources.

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The Parallax SX family of configurable communications controllers features an advanced process, combined with a RISC-like architecture, allows high-speed computation, flexible I/O control, and efficient data manipulation. Throughput is enhanced by operating the device at frequencies up to 75 MHz and by optimizing the instruction set to include mostly single-cycle instructions. The deterministic architecture of the SX provides reliable performance for time-critical applications.

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The 8-Bit H8 series MCU from Renesas is based around the H8 core and is equipped with a wide variety of peripheral system functions on-chip. The H8 Family provides extensive support for customer system requirements, with an expanding range of low cost products with high-level peripheral functions and features such as low power consumption.

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The 740 family covers all system needs with a variety of features such as a control-use instruction set, sophisticated peripheral functions and low-power consumption. USB functionality, and LCD control versions are available.

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The ML610Q4xx family of 8-bit microcontrollers include a highly efficient RISC-type CPU, LCD controller and driver, two types of A/D converters, and on-chip debugging functions.  They operate over a wide voltage range of 3.6V down to 1.1V with embedded Flash.  The ML610Q4xx devices are best suited for handheld and battery-powered products with LCDs such as watches, thermometers, bike computers or weather stations where power consumption, flexibility and time-to-market are key issues. The series also includes versions with extended temperature range to cover applications in the industrial segment.

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The 8-bit ST6 family has long been a safe and popular choice for simple and robust cost-sensitive applications including home appliances, digital-consumer equipment and motor control. Housed in 16- to 28-pin packages, the ST6 devices integrate 1 to 4 KB of OTP (One-Time Programmable) or ROM memory.

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The ST7 core is based on an industry-standard 8-bit architecture, and provides additional interrupt handling features. The ST7 microcontroller family is ideal for smart appliances, motor control, automotive, or home automation. This well-established family of 8-bit microcontrollers has the flexibility of Flash programming and the expected robustness for multi-segment purposes.

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STMicro's STM8 family features up to 256KB of program memory and 6KB of RAM, 128 pin packages, and a large voltage supply range of 1.65V to 5.5V. The series offers 24MHz of performance and cost-effectiveness in a wide range of applications.

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The µPSD is a family of 8-bit microcontrollers built on the 8032 microcontroller core. µPSD features a flexible memory structure, programmable logic, and a rich peripheral set that includes devices with USB and JTAG debug/emulation. These along with analog and supervisory functions, makes µPSD an ideal solution for a wide variety of embedded control applications.

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Zilog’s Z8 Encore! family of 8-bit Flash microcontrollers provides a 20MHz Z8 core with up to 12KB of Flash memory, an optional fast ADC, and a 20MHz precision oscillator, the Z8 Encore! family delivers outstanding math performance and in-circuit programmability. The family comes with a free suite of development software including a full ANSI Optimizing C Compiler. Zilog also offers a full suite of design tools, including development kits and modular development systems.

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The eZ80 Acclaim Flash based MCU is the latest addition to ZiLOG’s microcontroller line-up with speeds up to 50MHz on a single instruction cycle core and an on-chip Ethernet MAC on some versions. The family also features 256KB Flash, and up to 16KB SRAM.

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