Speedy Serial EEPROMs Supply Data At 1 And 3 MHz

Pushing the speed of its I2C serial interface to 1 MHz, the CAT24FC32 provides 32 kbits of EEPROM storage. The chip includes a 32-byte page write or single-byte write mode. Its power supply can span 2.7 to 5.5 V. Its serial memory's zero...

Dave Bursky

June 10, 2002

Pushing the speed of its I²C serial interface to 1 MHz, the CAT24FC32 provides 32 kbits of EEPROM storage. The chip includes a 32-byte page write or single-byte write mode. Its power supply can span 2.7 to 5.5 V. Its serial memory's zero standby current suits it well for battery-powered systems. For designs that need a fast MicroWire interface, the CAT93HC46 runs at 3 MHz and provides 1 kbit of EEPROM storage configurable as 128 words by 8 bits or 64 words by 16 bits. Both chips are available in 8-pin DIPs, surface-mount TSSOPs, or SOIC packages and in commercial (0^oC to 70^oC), industrial (×40^oC to 105^oC), or extended automotive (×40^oC to 125^oC) temperature ranges. The CAT24FC32 and CAT93HC46 respectively sell for $0.65 and $0.25 each in lots of 1000.

Catalyst Semiconductor
www.catalyst-semiconductor.com; (408) 542-1080

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.