S42WD61

S4242/S42WD42/S4261/S42WD61 Dual Voltage Supervisory Circuit With Watchdog Timer(S42WD61) (S42WD42) FEATURES Precision Dual Voltage Monitor – VCC Supply Monitor - Dual reset outputs for complex microcontroller systems - Integrated memory write lockout function - No external components required Second Voltage Monitor Output – Separate VLOW output – Generates interrupt to MCU – Generates RESET for dual supply systems - Guaranteed output assertion to VCC - 1V Watchdog Timer (S42WD42, S42WD61) – 1.6s Memory Internally Organized 2 x8 Extended Programmable Functions Available on SMS24 High Reliability – Endurance: 100,000 erase/write cycles – Data retention: 100 years OVERVIEW The S42xxx are a precision power supervisory circuit. It automatically monitors the device’s VCC level and will generate a reset output on two complementary open drain outputs. In addition to the VCC monitoring, the S42xxx also provides a second voltage comparator input. This i...