Renesas Electronics Corporation PMIC - Supervisors X4005M8IZ-2.7A

The X4005M8IZ-2.7A from Quarktwin Technology Ltd. is a CPU supervisor that integrates power-on reset control, watchdog timer, and supply voltage supervision functions. This combination is designed to enhance system reliability while minimizing cost and board space. The device activates the power-on reset circuit upon power application, holding the RESET signal active to allow stabilization of the power supply and oscillator before code execution. The watchdog timer provides an independent reset mechanism for microcontrollers, asserting the RESET signal if the timer is not reset within a user-defined interval, which can be selected from three preset values. The low V_CC detection circuitry protects the system from low voltage conditions, resetting the system when V_CC drops below a specified threshold. The device supports five standard reset threshold voltages, which can be reprogrammed for custom applications. Operating within a supply voltage range of 2.7V to 5.5V, the X4005M8IZ-2.7A features a low power consumption profile, with a typical standby current of 12¬µA when the watchdog is active and 800nA when it is off. It utilizes a 400kHz I¬=C interface and is available in an 8-lead MSOP package, compliant with RoHS standards. The product is rated for a temperature range of -40¬8C to +85¬8C.