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Microchip has introduced the MCP9804 temperature sensor. The sensor features a temperature accuracy of +0.25°C (typical) and ±1°C from -40 to +125°C, as well as a static current consumption of 200µA. Available in 8-pin MSOP and 2x3mm DFN packages, the I²C device reduces board space and enables long battery life. The sensor features programmable shutdown to extend battery life; an alert feature for over- and under-temperature window monitoring; and a temperature-alert feature that provides over-temperature protection. Example applications for the device include industrial freezers, consumer electronic devices such as personal computers, and automotive applications such as engine-temperature monitoring.