XIC5043 Application Note AN21 X5043/X5045 System Supervisors Manage 8051 type Microcontrollers by Applications Staff, May 2001 Both the X5043 and X5045 feature a power on reset for the X5043 open-drain (i.e. active LOW) reset output. circuit, low voltage reset controller, programmable The 2N7000 N-MOSFET is used to invert the active watchdog timer, and 4K bits of high speed, three-wire LOW reset, to directly control the 8031 RST pin. The serial, nonvolatile EEPROM in a single 8-pin package. circuit shown in Fig. 2 has both a manual and X5045 ……