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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.
S4261 Datasheet
