MCHPMCP6542-E/P

Overview

The MCP6542-E/P is a dual, ultra-low power comparator designed for battery-powered applications, operating with a typical quiescent current of only 0.6 microamps per comparator. It features a push-pull output stage that eliminates the need for external pull-up resistors and supports rail-to-rail input and output operation. This specific variant comes in an 8-pin PDIP package, making it ideal for through-hole prototyping and educational environments.

Why Choose This Part

The primary advantage is the extremely low power consumption, allowing the device to remain active in 'always-on' sensing applications. The integrated 6.5mV hysteresis provides noise immunity without external components, while the push-pull output simplifies interfacing with CMOS and TTL logic levels. Its wide operating voltage range of 1.6V to 5.5V ensures compatibility with various battery chemistries and logic rails.

Applications

Getting Started

Since this is an 8-PDIP package, it can be directly inserted into a standard breadboard or socket. Ensure a 0.1 microfarad bypass capacitor is placed close to the VDD pin (pin 8) to maintain stability. For simulation, Microchip provides SPICE models that can be used in tools like MPLAB Mindi to verify threshold behaviors before hardware assembly.

MCP6542 Family

Comparing specs that differ across variants. The current part is highlighted.

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