Serial EEPROMs support one-wire bus for cost and complexity savings

Designers using EEPROM for non-volatile storage can gain miniaturisation and cost savings by using Microchip’s EEPROMs featuring UNI/O technology.

UNI/O comprises a single-I/O bus and a patented memory-device protocol allowing a single I/O pin to support communication between the EEPROM and the MCU. The benefits include smaller, lower-cost EEPROM components, as well as easier board layout and routing. In addition, a smaller MCU can be used, which reduces overall design size and delivers further cost savings by allowing the use of a lower pin-count connector.

Designers can also gain the benefits of advanced features previously only found on larger or more expensive devices. These include status registers, software-based write protection for quarter-, half- or full-memory array, noise filtering, and robust ESD protection for the highest reliability.

Microchip’s UNI/O product range includes EEPROMs in 1kbit to 16kbit densities in economical 3-pin SOT-23 packages. Other package options featuring higher pin counts are also available.

The full UNI/O range includes ten devices throughout the 11xx010, 11xx020, 11xx040, 11xx080 and 11xx160 families, featuring 1kbit, 2kbit, 4kbit, 8kbit and 16kbit densities respectively.

 

FEATURES Patent-pending UNI/O technology Data rate from 10kHz to 100kHz 8-pin package pin-outs overlay any standard I2C or SPI EEPROM socket

APPLICATIONS Automotive safety systems Glucose test-strip calibrators Patient-monitoring devices Printer cartridges Rechargeable batteries and PC Cards Portable industrial instrumentation Data loggers

 

 

 

The MPLAB® Starter Kit DV243003 is available to members of the Future Board Club. To apply for the development board, and membership of the Board Club, go to www.my-boardclub.com/manf-offers.htm This offer is free and subject to qualification.

 

Microchip / UNI/O™ EEPROM