Maxim Integrated MXD1818UR26+

The MXD1818UR26+ is a high-quality, low-power microprocessor (µP) supervisory circuit designed and manufactured by Maxim Integrated, a renowned leader in the development of innovative analog and mixed-signal products. This compact and efficient component is engineered to monitor the power supply voltages in digital systems, ensuring that the µP and other critical system components operate within specified power supply limits.

With a highly precise factory-set reset threshold voltage of 2.63V, the MXD1818UR26+ provides a reliable reset output during power-up, power-down, and brown-out conditions. This feature ensures that the µP resets from a power failure and starts up correctly during power-on. The reset signal is maintained for a minimum of 140ms after the supply voltage exceeds the reset threshold, offering a stable reset assertion to the connected devices.

The device is available in a tiny, space-saving SOT-323 package, making it an ideal choice for applications where board space is at a premium. It also boasts a low supply current of only 3.5µA (typical), which is highly beneficial for battery-powered and portable applications where power efficiency is critical.

Another notable feature of the MXD1818UR26+ is its immunity to short VCC transients, which helps to prevent false resets and ensures the stability of the system it is protecting. Additionally, it offers a wide operating temperature range from -40°C to +125°C, which makes it suitable for use in harsh environmental conditions and diverse industrial applications.

Maxim Integrated's MXD1818UR26+ is a versatile and reliable solution for system designers looking to enhance the reliability and performance of their digital systems. Its combination of precision, low power consumption, and small form factor makes it an excellent choice for a wide range of applications including computers, controllers, intelligent instruments, and portable consumer electronics.