Digital ICs/DSP: High-Speed Serial EEPROMs Deliver Data At 10 MHz

Feb. 2, 2004

A pair of high-speed serial EEPROMs offers storage capacities of 8 and 16 kbits (the 25XX080A/B and 25XX160A/B, respectively). The memories, with data-transfer speeds of 10 MHz, can be had in two supply-range options—1.8 to 5.5 V or 2.5 to 5.5 V (the 25AA080/160 and 25LC080/160, respectively). The memories feature self-timed erase and write cycles and a write time of 5 ms. Each memory comes with either a 16- or 32-byte page register (suffix A or B, respectively). The EEPROMs draw 3 mA when writing and as little as 3 µA on standby. Each model is serial-peripheral-interface-bus compatible and available in a variety of packages—TSSOP, PDIP, SOIC, and MSOP. With a 200-year data retention, the memories can handle 1 million erase/write cycles. In lots of 10,000-units, prices start at $0.52 apiece for the 25XX080A and B and $0.54 apiece for the 25XX160A and B. Samples are immediately available.

Microchip Technology Inc.www.microchip.com; (480) 792-7200

About the Author

Dave Bursky

Technologist

Dave Bursky, the founder of New Ideas in Communications, a publication website featuring the blog column Chipnastics – the Art and Science of Chip Design. He is also president of PRN Engineering, a technical writing and market consulting company. Prior to these organizations, he spent about a dozen years as a contributing editor to Chip Design magazine. Concurrent with Chip Design, he was also the technical editorial manager at Maxim Integrated Products, and prior to Maxim, Dave spent over 35 years working as an engineer for the U.S. Army Electronics Command and an editor with Electronic Design Magazine.