Renesas Electronics Corporation Supervisors X40410S8I-AT1

The X40410S8I-AT1 is a dual voltage monitor and integrated CPU supervisor designed for applications requiring power-on reset control, watchdog timer functionality, and voltage supervision. It features dual voltage detection with adjustable reset thresholds, allowing for monitoring of three voltage levels or power fail detection. The device operates within a supply voltage range of 2.7V to 5.5V and has a typical standby current of 25µA with the watchdog timer enabled. The supervisor includes a fault detection register and selectable power-on reset timeout options of 0.05s, 0.2s, 0.4s, and 0.8s. It also supports a watchdog timer with selectable intervals of 25ms, 200ms, and 1.4s. The integrated EEPROM provides 4Kbits of memory with a 5ms write cycle time and built-in write protection features. The device communicates via a 400kHz 2-wire interface, making it suitable for various applications, including communication equipment, industrial systems, and computer systems. This product is not recommended for new designs, and there is no recommended replacement available.