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Analog Devices Inc./Maxim Integrated MAX6711ZEXS+T
- Part No.:
- MAX6711ZEXS+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6711ZEXS+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:126
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Product details
Overview
MAX6711ZEXS+T from Maxim Integrated is a precision microprocessor supervisory circuit with push-pull active-low RESET output, designed to monitor +2.5V power supplies in embedded systems. It provides 2.32V reset threshold (±0.03V at +25°C), 140ms minimum reset timeout, 12µA supply current at VCC = +2.5V, and guaranteed reset validity down to VCC = +1V. It is used in battery-powered instrumentation requiring reliable brownout detection and manual reset capability.
For engineers reviewing the MAX6711ZEXS+T datasheet, MAX6711ZEXS+T pinout, MAX6711ZEXS+T application, or MAX6711ZEXS+T equivalent, key selection criteria include reset threshold accuracy for 2.5V rails, SC70-4 package footprint constraints, push-pull vs. open-drain output compatibility, MR input glitch immunity, and operation across –40°C to +125°C industrial temperature range.
Technical Context
The MAX6711ZEXS+T integrates a precision voltage comparator with 30ppm/°C tempco, internal 20kΩ MR pull-up resistor, and debounced manual reset logic. Its reset assertion is triggered when VCC falls below 2.32V (Z-version) and remains asserted for ≥140ms after VCC recovers above threshold.
It features transient immunity against VCC glitches down to 20µs duration at 100mV overdrive, operates with no external components, and maintains valid RESET output state down to VCC = +1V - enabling robust power sequencing in low-voltage portable systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.32V ±0.03V at +25°C; ensures reliable brownout detection on 2.5V rails before system instability occurs |
| Supply Current | 12µA typical at VCC = +2.5V and TA = –40°C to +85°C; enables multi-year battery life in portable equipment |
| Reset Timeout | 140ms minimum after VCC rise; guarantees µP initialization completes before code execution begins |
| VCC Operating Range | 1.0V to 5.5V; supports full functionality down to 1V, allowing reset assertion during deep brownout conditions |
| MR Input Threshold | VIL = 0.3×VCC, VIH = 0.7×VCC; compatible with standard CMOS/TTL logic without level-shifting |
| Reset Output Type | Active-low push-pull; drives RESET directly to GND or VCC without external pull-up, simplifying PCB layout |
| Temperature Range | –40°C to +125°C; qualified for industrial and automotive under-hood applications |
Pinout & Package
MAX6711ZEXS+T is housed in a 4-pin SC70 package (outline X4-1, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm with 0.65mm pin pitch. The compact footprint supports high-density portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for all internal circuitry; must be connected to system ground plane for stable reset threshold |
| 2 RESET | Active-low push-pull reset output | Drives low during reset; actively pulls high when deasserted - eliminates need for external pull-up resistor |
| 3 MR | Manual reset input | Active-low; internally pulled up to VCC via 20kΩ resistor; accepts TTL/CMOS logic or momentary switch to GND |
| 4 VCC | Supply voltage input | Accepts +1.0V to +5.5V; powers internal comparator and output stage; monitored for reset generation |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.32V reset threshold | ±0.03V tolerance at +25°C ensures deterministic reset timing on 2.5V systems without margin uncertainty |
| 140ms minimum reset pulse width | Guarantees sufficient hold time for µP internal clocks and memory initialization before release |
| No external components required | Eliminates BOM cost and board space for resistors, capacitors, or trimming circuits in basic reset implementation |
| MR input with 100ns glitch immunity | Rejects EMI-induced noise on manual reset line, preventing spurious resets in electrically noisy environments |
| Valid RESET output down to VCC = +1V | Ensures controlled shutdown sequence even during severe brownout, avoiding undefined µP states |
Applications
| Portable Medical Instrumentation | Industrial Sensor Node |
|---|---|
|
Use Scenario: Handheld blood glucose meter powered by single Li-ion cell with dynamically decaying voltage profile. IC Role / Device Role / Timing Role: Monitors 2.5V LDO output and asserts RESET before analog front-end or MCU enters undervoltage lockout. Use Value: Prevents corrupted ADC readings and flash write errors during battery depletion by triggering clean restart at precisely 2.32V. |
Use Scenario: Wireless temperature sensor node operating on coin-cell battery in factory-floor environment. IC Role / Device Role / Timing Role: Supervises 2.5V rail feeding ultra-low-power MCU and RF transceiver; debounces mechanical reset button. Use Value: Enables field firmware recovery via MR while maintaining <15µA quiescent current, extending operational life beyond 5 years. |
| Programmable Logic Controller I/O Module | Test & Measurement Equipment |
|
Use Scenario: DIN-rail mounted PLC module exposed to wide ambient temperature swings (–40°C to +85°C). IC Role / Device Role / Timing Role: Provides temperature-stable reset supervision for 2.5V FPGA configuration memory and interface ICs. Use Value: 30ppm/°C tempco ensures reset threshold drift remains within ±15mV across full industrial range, avoiding false resets. |
Use Scenario: Benchtop oscilloscope with FPGA-based acquisition engine and multiple voltage domains. IC Role / Device Role / Timing Role: Acts as secondary supervisor for 2.5V clock generator and ADC reference supply, independent of main µP supervisor. Use Value: Dual-supervision architecture isolates critical analog subsystems from digital domain faults, improving measurement integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6713ZEXS+T | Same 2.32V threshold and SC70-4 package, but open-drain RESET output requiring external pull-up | Suitable where level-shifting to higher-voltage reset domain (e.g., 3.3V or 5V) is needed | Select MAX6713ZEXS+T only if bidirectional reset bus or multi-supply reset coordination is required |
| TPS3808G125DBVR | 2.5V fixed threshold, 350ms reset timeout, SOT-23-5 package, 2.5µA quiescent current | Better suited for ultra-low-power applications where longer reset hold time is acceptable | Choose TPS3808G125DBVR when extended reset duration improves system reliability and lower ICC is critical |
Compared with MAX6711ZEXS+T, MAX6713ZEXS+T trades push-pull simplicity for open-drain flexibility, while TPS3808G125DBVR offers lower current and longer timeout at the cost of larger footprint and different threshold - making MAX6711ZEXS+T optimal for space-constrained 2.5V systems needing precise, fast, and self-contained reset control.
Availability
MAX6711ZEXS+T is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial sensor nodes, programmable logic controller I/O modules, and test & measurement equipment requiring stable component supply across extended temperature ranges.
Supply support for MAX6711ZEXS+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, computing, communications, and consumer applications.
The MAX6711 family delivers highly accurate, low-power microprocessor supervisory functions specifically for voltage monitoring and reset generation in space- and power-constrained embedded systems.
FAQ
What is the exact reset threshold voltage of the MAX6711ZEXS+T and how does it vary with temperature?
The MAX6711ZEXS+T has a nominal reset threshold of 2.32V at +25°C, with ±0.03V initial accuracy. Over the full –40°C to +125°C range, the threshold varies by ±0.06V maximum (2.26V to 2.38V), supported by a 30ppm/°C tempco. This tight specification ensures predictable brownout behavior on 2.5V rails without design margin uncertainty. The MAX6711ZEXS+T datasheet specifies these limits in its Electrical Characteristics table under "MAX671_Z" conditions.
Does the MAX6711ZEXS+T require external components to operate as a standalone reset supervisor?
No, the MAX6711ZEXS+T requires no external components for basic operation. Its internal 20kΩ MR pull-up resistor, precision voltage reference, and push-pull RESET output eliminate the need for external resistors, capacitors, or trimming networks. Only VCC, GND, MR (optional), and RESET connections are needed - reducing BOM count, PCB area, and qualification effort. This integration is confirmed in the "No External Components" feature and Typical Operating Circuit diagram of the MAX6711ZEXS+T datasheet.
How long does the RESET signal remain asserted after VCC rises above the threshold in the MAX6711ZEXS+T?
The MAX6711ZEXS+T guarantees a minimum RESET assertion time of 140ms after VCC rises above the 2.32V threshold, with typical values up to 240ms and maximum up to 460ms across temperature. This timeout is internally generated and independent of external RC networks. The 140ms minimum ensures sufficient hold time for microprocessor core initialization, PLL locking, and memory stabilization before release - a requirement explicitly verified in the "Reset Active Timeout Period" parameter of the MAX6711ZEXS+T electrical specifications.
Can the MAX6711ZEXS+T operate reliably when VCC drops below 1.0V?
Yes, the MAX6711ZEXS+T guarantees valid RESET output behavior down to VCC = +1.0V. Below this voltage, the RESET output transitions to a high-impedance state (open circuit), which is explicitly documented in the "Guaranteed Reset Valid to VCC = +1V" feature and Absolute Maximum Ratings. For applications requiring RESET validity down to 0V, a 100kΩ pull-down resistor on the RESET pin is recommended - a solution detailed in Figure 2 of the MAX6711ZEXS+T datasheet.
What is the function of the MR pin on the MAX6711ZEXS+T and how should it be interfaced?
The MR pin on the MAX6711ZEXS+T is an active-low manual reset input with internal 20kΩ pull-up to VCC. It can be driven by TTL/CMOS logic, left floating (internally pulled high), or connected to ground via a momentary switch - no external debounce circuitry is needed. The MR-to-RESET delay is 200ns, and it features 100ns glitch immunity. These characteristics enable robust field service reset capability while minimizing component count. All MR specifications are validated in the "MR Input Threshold", "MR Glitch Immunity", and "MR to Reset Delay" parameters of the MAX6711ZEXS+T datasheet.
MAX6711ZEXS+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.32V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6711ZEXS+T FAQ
1.How can I place an order for MAX6711ZEXS+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6711ZEXS+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6711ZEXS+T reliable?
The price and inventory of MAX6711ZEXS+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6711ZEXS+T is usually 5 days.
3.What payment methods are accepted for MAX6711ZEXS+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6711ZEXS+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6711ZEXS+T?
MAX6711ZEXS+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6711ZEXS+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6711ZEXS+T?
For technical support, including MAX6711ZEXS+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6711ZEXS+T requirements.
6.How does Aetrix verify that MAX6711ZEXS+T is sourced from the original manufacturer or authorized distributors?
All MAX6711ZEXS+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6711ZEXS+T meets industry standards.
7.What is the process for return or replacement of MAX6711ZEXS+T?
All MAX6711ZEXS+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6711ZEXS+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6711ZEXS+T part is unused and in its original packaging.
Return procedure for MAX6711ZEXS+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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