/
/
/
Voltage Supervisors 
/
Top ![]()
MAX6701, MAX6701A
Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer
Maxim Confidential 
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
Parametric specs for Supervisors (3 Monitored Voltages)
| Reset Thresh. (V) | 0 to 1.2 1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5 |
| Reset Out | Active Low Push-Pull |
| Interface | Factory Fixed R/C Adjustable |
| tRESET (min) | 85ms to 300ms |
| Watchdog Feature | Input (WDI) Input/Output (WDI/WDO) |
| Watchdog Timeout | 1s to 2s |
| Supervisor Features | Adjustable Reset Input Manual Reset |
| ICC (µA) (max) | 25 |
| Package/Pins | SOT23/8 |
| Budgetary Price (See Notes) | 1.64 |
View Less
Simplified Block Diagram
Technical Docs
| Data Sheet | Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer | Aug 01, 2014 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Supervisors (3 Monitored Voltages)
| Reset Thresh. (V) | 0 to 1.2 1.2 to 1.8 1.8 to 2.5 2.5 to 3.3 3.3 to 5.5 |
| Reset Out | Active Low Push-Pull |
| Interface | Factory Fixed R/C Adjustable |
| tRESET (min) | 85ms to 300ms |
| Watchdog Feature | Input (WDI) Input/Output (WDI/WDO) |
| Watchdog Timeout | 1s to 2s |
| Supervisor Features | Adjustable Reset Input Manual Reset |
| ICC (µA) (max) | 25 |
| Package/Pins | SOT23/8 |
| Budgetary Price (See Notes) | 1.64 |
Key Features
- Small 8-Pin SOT23 Package
- Precision Monitoring of +5.0V, +3.3V, +3.0V, +2.5V Supply Voltages
- 140ms Reset Timeout Delay
- Power-Fail Input with Independent Output; Monitor Inputs Down to 0.62V (MAX6704—MAX6708)
- Dual Adjustable Reset Input for Triple-Voltage Monitoring (MAX6701(A)/MAX6702(A)/MAX6703(A))
- 1.6s Watchdog Timeout Period (MAX6701(A)—MAX6707(A))
- Independent Watchdog Output (MAX6701(A)/MAX6702(A)/MAX6703(A)/MAX6705(A)/MAX6706(A)/MAX6707(A))
- Manual Reset Input
- Four Reset Output Stage Options
- Active Low Push-Pull (MAX6701(A), MAX6705(A))
- Active Low Open Drain (MAX6703(A), MAX6707(A))
- Active High Push-Pull (MAX6702(A), MAX6706(A))
- Dual Active Low/High Push-Pull (MAX6704, MAX6708)
- Guaranteed Reset Valid to VCC = 1V
- Immune to Short Falling VCC Transients
- Low Cost, Few External Components
Applications/Uses
- Computers
- Controllers
- Critical µP Power Monitoring
- Intelligent Instruments
- Networking
- Telecommunications
- White Goods
Description
The MAX6701—MAX6708 microprocessor (µP) supervisory circuits reduce the complexity and components required to monitor power-supply functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.
The MAX6701—MAX6708 family provides four functions: a reset output during power-up, power-down, and brownout conditions; an independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s; a 0.62V threshold detector for power-fail warning; and an active-low manual reset input.
The MAX6701—MAX6708 family offers several pinout options to accommodate a variety of multivoltage microprocessor supervision applications.
The MAX6701(A)/MAX6702(A)/MAX6703(A) monitor three supply voltages (one fixed threshold and two adjustable) to drive a single reset output and include a manual reset input and a watchdog timer with an independent output. The MAX6704 monitors a single-supply voltage to drive complementary reset outputs and includes an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a reset-based watchdog timer. The MAX6705(A)/MAX6706(A)/MAX6707(A) monitor a single-supply voltage to drive a single reset output and include an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a watchdog timer with an independent output. The MAX6708 is the same as the MAX6704 but without the watchdog timer function.
See the Detailed Description for differences between non-A and A versions.
The MAX6701—MAX6708 family provides four functions: a reset output during power-up, power-down, and brownout conditions; an independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s; a 0.62V threshold detector for power-fail warning; and an active-low manual reset input.
The MAX6701—MAX6708 family offers several pinout options to accommodate a variety of multivoltage microprocessor supervision applications.
The MAX6701(A)/MAX6702(A)/MAX6703(A) monitor three supply voltages (one fixed threshold and two adjustable) to drive a single reset output and include a manual reset input and a watchdog timer with an independent output. The MAX6704 monitors a single-supply voltage to drive complementary reset outputs and includes an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a reset-based watchdog timer. The MAX6705(A)/MAX6706(A)/MAX6707(A) monitor a single-supply voltage to drive a single reset output and include an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a watchdog timer with an independent output. The MAX6708 is the same as the MAX6704 but without the watchdog timer function.
See the Detailed Description for differences between non-A and A versions.
Technical Docs
| Data Sheet | Low-Voltage, SOT23, µP Supervisors with Power-Fail In/Out, Manual Reset, and Watchdog Timer | Aug 01, 2014 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Request a Quote