Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Microchip Technology | Subject: Flash PIC microcontrollers
Edited by the Electronicstalk Editorial
Team on 15 November 2004
Microcontrollers boast full-speed USB
2.0
New from Microchip are the first Flash PIC microcontrollers with Full-Speed USB 2.0 connectivity and 48MHz operation, for 12Mbit/s data-transfer rates.
New from Microchip are the first Flash PIC microcontrollers with Full-Speed USB 2.0 connectivity and 48MHz operation, for 12Mbit/s data-transfer rates Combined with a wide variety of peripherals and nanoWatt Technology power management, these features provide a complete solution for designers working with USB in industrial, medical and many other embedded applications
This article was originally published on Electronicstalk on 14 Jun 2006 at 8.00am (UK)
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Most USB-capable microcontrollers are optimised for personal computing (PC) and consumer applications, rather than embedded designs.
Microchip's new USB PIC microcontroller family offers the benefits of Full-Speed USB to a broader range of applications that may operate in harsh environments and connect to personal computers less often.
Target applications for these products include the industrial, medical and automotive markets as well as advanced consumer applications and other PC-connected, battery-powered devices.
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The Full-Speed USB 2.0 interface featured includes an onboard transceiver and a parallel streaming port for direct data transfers to external peripherals with minimum CPU overhead.
Another of the family's key features is its 24 or 32Kbyte of self-programmable enhanced Flash memory, supporting field upgrades via the USB port.
Using Microchip's PMOS electrically erasable cell (PEEC) Flash technology, the devices provide high endurance of up to 100,000 erase/write cycles and long data retention of more than 40 years.
Other key features include: 2Kbyte of RAM, 1Kbyt of which can be a dedicated USB buffer; 256byte of EEPROM data memory; EUSART module supporting RS232, RS485 and LIN serial interfaces; master synchronous serial port (MSSP) supporting I2C and SPI communication; 10bit A/D convertor with up to 12 channels; two analogue comparators; capture/compare/PWM (CCP) module with 16bit capture and resolution; enhanced capture/compare/PWM (ECCP) with dead-time control and fault-protection inputs; four timers (three 16bit, one 8bit); programmable brownout reset and low voltage detect circuits; and enhanced in-circuit debugging capabilities with up to three hardware breakpoints.
One key consideration for USB-application designers is the availability of firmware support.
Microchip offers an extensive set of libraries for the most common application classes, including the Human Interface Device (HID), Communication Device Class (CDC) and custom drivers.
Microchip is also publishing an application note illustrating how to replace a serial port with a Full-Speed USB link in a few easy steps.
The new USB PIC microcontrollers are supported by Microchip's world-class development systems, including: MPLAB integrated development environment (IDE), MPLAB C18 C compiler, MPLAB ICD 2 in-circuit debugger, MPLAB ICE 2000/4000 in-circuit emulators and MPLAB PM3 universal device programmer.
In addition, the PICDEM Full-Speed USB demo board (DM163025), and the MP-USB Wizard 2.0, a free application to guide the designer through the creation of descriptor tables, are expected to be available in December.
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