Features and Benefits
- µMAX Package, Small 8-Pin SO
- Precision Supply-Voltage Monitors
- 2.63V (MAX706P/R, MAX706AP/AR, and MAX708R)
- 2.93V (MAX706S, MAX706AS, and MAX708S)
- 3.08V (MAX706T, MAX706AT, and MAX708T)
- 200ms Reset Time Delay
- Debounced TTL/CMOS-Compatible Manual Reset Input
- 100µA Quiescent Current
- WDI Disable Feature (MAX706AP/AR/AS/AT)
- Watchdog Timer: 1.6s Timeout
- Reset Output Signal:
- Active-High Only (MAX706P, MAX706AP)
- Active-Low Only (MAX706R/S/T, MAX706AR/AS/AT)
- Active-High and Active-Low (MAX708R/S/T)
- Voltage Monitor for Power-Fail or Low-Battery Warning
- 8-Pin Surface-Mount Package
- Guaranteed active-low RESET Assertion to VCC = 1V
The MAX706P/R/S/T, MAX706AP/AR/AS/AT, and MAX708R/S/T microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor +3V power-supply levels in +3V to +5V µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.
The MAX706P/R/S/T and MAX706AP/AR/AS/AT supervisory circuits provide the following four functions:
1) A reset output during power-up, power-down, and brownout conditions.
2) An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s.
3) A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than the main supply.
4) An active-low, manual-reset input.
The MAX708R/S/T provide the same functions as the MAX706R/S/T and MAX706AR/AS/AT except they do not have a watchdog timer. Instead, they provide both active-low RESET and RESET outputs. As with the MAX706, devices with R, S, and T suffixes have reset thresholds of 2.63V, 2.93V, and 3.08V, respectively.
These devices are available in 8-pin SO, DIP, and µMAX® packages and are fully specified over the operating temperature range.
- Battery-Powered Equipment
- Critical µP Power Monitoring
- Intelligent Instruments
- Portable Instruments
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX708T Reliability Data1/12/2023
MAX708T Companion Parts
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