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Microchip PIC MCU touts 40MHz speed, 128KB flash on-chip

Posted: 18 Jan 2005 ?? ?Print Version ?Bookmark and Share

Keywords:pic18f8722? microchip technology? pic microcontroller? pic mcu? mcu?

Microchip Technology Inc.'s newest high pin-count 8bit PIC microcontroller (MCU) chips have up to 128KB of self-reprogrammable, high-endurance flash memory and run at 40MHz over a wide operating voltage range of 2V to 5.5V. The new units come in 64- and 80-pin packages.

With 10MIPs performance, Microchip said its newest MCUs can compete with 16bit devices in high-end embedded applications while retaining ease of use and helping designers to preserve their 8bit development tool and software investments.

Engineers have a growing need for MCUs with increased computational power and larger program memory sizes, due to the transition of code development methodologies from Assembly to C language, and they would rather not discard their 8bit code and development tools.

The PIC18F8722 8bit MCU series addresses these performance and memory needs by providing linear access (no pages) to a memory space as large as 2MB, while offering complete code and tool compatibility with smaller Microchip MCUs. In addition, the new PIC18F devices include nanowatt technology for reduced energy budgets and prolonged battery life, along with two synchronous serial ports (capable of SPI or I?C) and two asynchronous serial ports (LIN-capable USARTs) for expanded connectivity.

Other key features of the PIC18F8722 series include two enhanced USARTs for RS232, RS485 and LIN serial interfaces, two Master Synchronous Serial Port modules, each supporting Master I?C or SPI interfaces, 16-channel, 10bit ADC with auto-acquisition timing, two Analog Comparators, enhanced capture/compare/PWM modules with support for MOSFET (H-bridge) motor drives, extended watchdog timer with prescalar options, programmable brownout reset and low voltage detect circuits, software-selectable PLL options, 8bit/16bit mode external memory access and an enhanced instruction set for improved C compiler efficiency.

The PICDEM HPCExplorer Board (part # DM183022), designed to ease development with these high pin-count, high-density devices, is expected to be available in February. The new PIC18F8722 microcontrollers are also supported by Microchip's development systems, including: MPLAB Integrated Development Environment (IDE), MPLAB C18 C Compiler, MPLAB ICD 2 In-Circuit Debugger and MPLAB PM3 Universal Device Programmer.

Details on Microchip's Application Maestro and Visual Device Intializer software are available online.

The PIC18F6722 and PIC18F6627 housed in 64-pin TQFP are priced $7.76 and $6.81, respectively in 10,000-unit quantities. The PIC18F8722 and PIC18F8627 in 80-pin TQFPs go for $8.23 and $7.28, respectively in the same quantity bracket. The four new members of the PIC18F8722 series are slated for volume production this month.

- Marty Gold


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