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Atmel MCU 12x faster

Posted: 11 Mar 2005 ?? ?Print Version ?Bookmark and Share

Keywords:atmel? at89lp? single-cycle 8051 core? 8051 core? 8051 flash mcu?

Atmel Corp. announced the availability of its new AT89LP family, which is based on a Single-Cycle 8051 core. Touted to be 12x faster than the standard 8051 core, members of this new family are designed for applications that require low power consumption and high performance at a low cost.

According to Marketing Director Manish Vadher, its AT89LP flash microcontrollers are easy to use, and offer a rich and powerful instruction set at a great performance. "With the new products, system designers enjoy up to 85 percent decrease in power consumption compared to classic 8051 microcontrollers at the same MIPS performance level," he said. Additionally, a wide operating voltage range of 2V to 5.5V is offered to accommodate power management, white goods and battery-operated applications.

The AT89LP CPU requires only one clock cycle for every byte fetch, while the classic 8051 CPU requires 12 clock cycles for every byte fetch. The AT89LP core is capable of 20MIPS throughput at 20MHz clock frequency. In comparison, the classic 8051 architecture delivers less than 2MIPS at 20MHz.

Atmel said that binary compatibility with the standard 8051 instruction set allows designers to easily migrate from multi-clock cycle 8051 devices to the AT89LP series, and easily upgrade their application's performance without a costly and time-consuming redesign.

The AT89LP family consists of devices with 2KB to 64KB of in-system programmable flash memory, and is available in a variety of pin options, from 14, 20, 28 and 44. They include on-chip DataFlash, 10bit ADC, analog comparator, pulse-width modulators, programmable watchdog timer, enhanced UART and an internal RC oscillator.

The first two devices of the family are the AT89LP2052 and AT89LP4052. Housed in 20-pin PDIP, TSSOP, SOIC packages, these two parts feature 2KB and 4KB of flash code memory, respectively, and are pin-compatible with the existing AT89C2051 and AT89C4051. Samples are already available with production scheduled in 2Q 2005. Pricing for 10,000 units are 85 cents (AT89LP2052) and 99 cents (AT89LP4052). In-system programming of these devices is supported by the AT89ISP programmer, which has a retail price of $25.

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