S4242/S42WD42/S4261/S42WD61
Dual Voltage Supervisory Circuit With Watchdog Timer(S42WD61) (S42WD42)
FEATURES
• Precisio...
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...