The MAX709 provides a system reset during power-up, power-down, and brownout conditions. When VCC falls below the reset threshold, RESET goes low and holds the µP in reset for 140ms min after VCC rises above the threshold.
The RESET output is guaranteed to be in the correct state with VCC down to 1V. The MAX709 provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, or +3V powered systems. The MAX709 is available 8-pin DIP, µMAX®, and SO packages.
Key Features
Applications/Uses
+5V, +3.3V, and +3V Versions
No External Components
Low Cost
Precise Power-Down Reset Threshold
140ms Min Power-On Reset Delay
Immune to Short Negative VCC Transients
8-Pin DIP, µMAX, and SO Packages
Low Supply Current:
35µA - MAX709R/S/T
65µA - MAX709L/M
Minimum Component Count, Low-Cost Processor Systems
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