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Atmel MCU runs up to 48MHz

Posted: 02 Jun 2005 ?? ?Print Version ?Bookmark and Share

Keywords:atmel? avr microcontroller? mcu? at76c713?

Atmel Corp. unveiled a high-speed, low-power AVR microcontroller (MCU) that runs up to 48MHz. Designed low-cost demanding USB applications, the AT76C713 provides a full-speed USB slave interface, compliant to USB 2.0 specification, to systems that need to communicate with a peripheral as a standard or custom class USB device.

"This new product targets applications where peripherals supporting fast serial asynchronous or synchronous data transfer must communicate with a host or other peripherals through a high-speed serial link such as USB," said Richard Bisset, Product Marketing Director. "It benefits applications including USB to UART bridge, USB to IrDA bridge, and two UARTs multiplexed into a high-speed USB up-link."

The AT76C713 implements novel memory architecture by integrating 16KB of SRAM memory for program code and 4 SRAM banks of 2KB each originally devoted to data, stack and variables. Up to three of those banks can be used as program memory in addition to the default 16KB, resulting in a highly configurable system depending on the application requirements.

A full USB Chapter 9 compliant bootstrap ROM can support enumeration and program download using descriptor parameters stored in an external EEPROM, dataflash or even hardwired Atmel-specific USB descriptors, eliminating the cost of the serial non-volatile memory. The AT76C713 offers a high number of general-purpose input/output pins with multifunction capabilities, such as expansion data memory interface, input interrupt lines, output compare timers or modem control signals for the serial links supported by the two internal UART modules. The UART modules support FIFOs in both directions, and one of those UARTs can support IrDA communication.

The AT76C713-JT100 comes packaged in a Pb-free, ROHS compliant, 100-pin TQFP package. In quantities of 10,000 units, pricing is $4. To facilitate custom developed applications with the AT76C713, a development kit (AT76C713-DK) is available with sample programs, utilities for program downloading, and a firmware upgrade.



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