MAX792LCPE

INTEGRATED CIRCUIT MAX792LCPE is an abbreviation of low-power, microprocessor reset system, unit which includes the most popular and advanced monolithic integrated circuit providing independent system reset and protection for a variety of contemporary microcomputers. It is featured by small size, low power and 3.3V operation.

This device combines the key features necessary for microprocessor system reset, providing power-on reset, power-down reset, watchdog timer reset, fail-safe monitoring of VCC, and over-voltage signal reset. This helps to ensure that the microcomputer is not damaged by any electrical or software/fault conditions.

The MAX792LCPE is an important tool for designers of embedded systems requiring the safety of system reset facilities. The device is suitable for industrial control systems, robotics, medical equipment, security systems and the like, whilst its power-up reset can provide "power-on self-test" to those applications needing it.

Working Principle

The MAX792LCPE has two independent inputs which can be used to reset it. These are the power-on reset and the watchdog timer. The power-on reset is activated when the power supply voltage rises above a predetermined level and the watchdog timer is activated when an external clock input exceeds a selected timeout period.

The power-on reset is activated when VCC rises above the power-on reset threshold and the internal reset signal is generated. This lockout circuit interprets an under-voltage condition as an internal reset signal. The internal reset signal is used to reset the logic to a predetermined level.

The watchdog timer has two independent inputs, one of which is an external clock input and is used to set the timeout interval. When the external clock input exceeds the timeout period, the watchdog timer will go into reset. The second input is an internal reset signal which is issued when the MAX792LCPE detects a power-on reset event. The internal reset signal is also used to reset the logic to a predetermined level.

The MAX792LCPE also includes a fail-safe monitoring circuit to ensure that the microcomputer is not damaged by any electrical or software/fault conditions. This feature sets an alarm output if the power supply voltage level rises above the fail-safe voltage level. The fail-safe alarm is reset only when the power supply voltage falls below the fail-safe voltage level.

The MAX792LCPE also includes an over-voltage signal reset option. This allows the user to set the MAX792LCPE to reset the logic when an external over-voltage signal is issued. This is often used in applications where the microcomputer needs to know when an external over-voltage condition has occurred.

Application Field

The MAX792LCPE microprocessor reset system is suitable for a wide range of applications where system reset and over-voltage protection is required. This device can be used in industrial control systems, robots, medical equipment, security systems, telecommunications, portable instrumentation and the like. In addition, this device is particularly suitable for applications requiring power-on self-test and/or fail-safe monitoring.

The MAX792LCPE microprocessor reset system is also suitable for use in applications which require the maintenance of a low power-supply voltage and reliability. Its low power consumption, 3.3V operation and small size make it an ideal choice for applications where power efficiency, size and reliability are of prime importance.

In summary, the MAX792LCPE is an important component for any embedded system needing the safety of system reset facilities and over-voltage protection. Its small size, low power and 3.3V operation make it an excellent choice for designers of embedded systems requiring the safety of system reset facilities and over-voltage protection.