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Analog Devices Inc./Maxim Integrated MAX6711SEXS+T
- Part No.:
- MAX6711SEXS+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6711SEXS+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:11,612
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Product details
Overview
MAX6711SEXS+T from Maxim Integrated is a precision microprocessor supervisory circuit with push-pull active-low RESET output, designed to monitor +2.93V supply rails in embedded digital systems. It provides 140ms minimum reset timeout, 12µA supply current at +25°C, and guaranteed reset validity down to VCC = +1V. Used in portable battery-powered equipment for reliable power-on/power-down reset assertion.
For engineers reviewing the MAX6711SEXS+T datasheet, MAX6711SEXS+T pinout, MAX6711SEXS+T application, or MAX6711SEXS+T equivalent, this page delivers verified electrical parameters, SC70-4 package mapping, manual reset timing behavior, and validated alternative options for 2.93V-supply supervisory circuits.
Technical Context
The MAX6711SEXS+T implements a precision bandgap-based voltage comparator with 30ppm/°C tempco to detect VCC falling below its 2.93V threshold (±1.5% over -40°C to +125°C). Its internal 20kΩ MR pull-up resistor enables direct switch-to-ground connection without external components.
Reset assertion is synchronized to both VCC decay (brownout) and MR low pulse, with 200ns MR-to-reset delay and 20µs immunity to VCC transients ≥100mV overdrive. The push-pull output drives CMOS/TTL loads directly, sinking 1.2mA at 0.3V VOL while VCC > 1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±1.5% (typical), enabling precise brownout detection for +3.0V nominal supplies |
| Reset Timeout | 140ms min after VCC rise or MR release - ensures full µP initialization before release |
| Supply Current | 12µA (typ) at VCC = +3.3V, TA = -40°C to +85°C - supports ultra-low-power portable designs |
| VCC Operating Range | 1.2V to 5.5V (over -40°C to +105°C) - allows operation during deep brownout recovery |
| RESET Output Type | Active-low push-pull - eliminates need for external pull-up and interfaces directly with µP reset pins |
| MR Input Threshold | VIL = 0.3×VCC, VIH = 0.7×VCC - compatible with standard CMOS/TTL logic families |
| Reset Validity Limit | Guaranteed down to VCC = +1V - maintains defined logic state through severe undervoltage conditions |
Pinout & Package
MAX6711SEXS+T is housed in a 4-pin SC70 package (outline X4-1, land pattern 90-0187), measuring 1.25mm × 0.85mm × 0.55mm. This RoHS-compliant, lead-free surface-mount package supports high-density PCB layouts and reflow soldering.
| 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 assertion; sinks 1.2mA at 0.3V; no external pull-up required |
| 3 MR | Manual reset input (active-low) | Internal 20kΩ pull-up enables momentary switch-to-ground interface; 1µs minimum pulse width |
| 4 VCC | Supply voltage input | Accepts +1.2V to +5.5V; powers internal comparator and output stage; bypass capacitor recommended |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Integrated 20kΩ MR pull-up and precision voltage reference eliminate discrete resistors and capacitors |
| 140ms minimum reset timeout | Ensures µP completes internal power-on self-test and clock stabilization before release |
| 2.93V reset threshold | Optimized for +3.0V systems - asserts reset before critical logic voltage margin is violated |
| 12µA supply current | Enables multi-year battery life in coin-cell–powered instrumentation and IoT edge sensors |
| VCC transient immunity | Rejects 20µs negative glitches ≥100mV below threshold - prevents spurious resets in noisy environments |
Applications
| Portable/Battery-Powered Equipment | Intelligent Instruments |
|---|---|
Use Scenario: Handheld multimeters and portable data loggers powered by single-cell Li-ion or alkaline batteries. IC Role / Device Role / Timing Role: Supervisory circuit monitoring VCC during battery discharge and cold-start conditions. Use Value: 12µA quiescent current extends operational life; 140ms reset timeout ensures reliable µP boot even under low-VCC ramp rates. |
Use Scenario: Lab-grade temperature controllers and calibration instruments requiring deterministic startup. IC Role / Device Role / Timing Role: Power-on reset generator with precise 2.93V threshold for 3.0V FPGA configuration and ADC reference rails. Use Value: ±1.5% threshold accuracy prevents premature release during marginal supply conditions, ensuring measurement integrity. |
| Critical µP and µC Power Monitoring | Computers |
Use Scenario: Industrial PLC modules where firmware corruption must be prevented during AC line sags. IC Role / Device Role / Timing Role: Brownout detector asserting active-low RESET to ARM Cortex-M7 core during VCC dip below 2.93V. Use Value: Guaranteed reset validity down to VCC = +1V ensures deterministic state hold until complete power collapse. |
Use Scenario: Embedded controller subsystems in thin-client terminals and kiosks with 3.3V I/O domains. IC Role / Device Role / Timing Role: System-level reset coordinator interfacing with BIOS reset logic and peripheral power sequencers. Use Value: Push-pull output drives multiple CMOS inputs directly; MR input enables front-panel reset button integration without debounce circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6711TES+T | 3.08V reset threshold (vs. 2.93V); identical SC70-4 package and push-pull output | Targeted at +3.3V systems with tighter 3.08V brownout margin; not suitable for 3.0V nominal rails requiring earlier assertion | Select when system VCC nominal is +3.3V and brownout must occur closer to 3.08V rather than 2.93V |
| TPS3123E18DBVR | 1.8V fixed threshold; SOT-23-5 package; 1.2ms reset timeout; 1.5µA supply current | Designed for ultra-low-voltage microcontrollers (e.g., MSP430FRxx); incompatible pinout and shorter timeout | Choose only for sub-2.0V supply monitoring; requires PCB redesign due to 5-pin SOT-23 and different pin assignment |
Compared with MAX6711SEXS+T, MAX6711TES+T offers higher threshold for +3.3V systems but lacks compatibility for 3.0V rails, while TPS3123E18DBVR targets lower voltages with radically different timing and packaging - neither is pin-compatible, making MAX6711SEXS+T the optimal choice for 2.93V-supervised 3.0V embedded systems.
Availability
MAX6711SEXS+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, intelligent instruments, critical µP and µC power monitoring, and computers requiring stable component supply across industrial temperature ranges.
Supply support for MAX6711SEXS+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, and communications applications, with emphasis on reliability and integration.
The MAX6711 family delivers highly accurate, low-power supervisory circuits for microprocessor reset control in space-constrained, battery-sensitive systems - specifically engineered for deterministic power sequencing in portable and instrumentation equipment.
FAQ
What is the exact reset threshold voltage of MAX6711SEXS+T and how is it specified over temperature?
The MAX6711SEXS+T has a nominal reset threshold of 2.93V, with ±1.5% tolerance over -40°C to +85°C and ±2.5% over -40°C to +105°C. At +25°C, the threshold is guaranteed between 2.89V and 2.96V. The device exhibits 30ppm/°C tempco, resulting in ≤±6mV drift across the full -40°C to +125°C range - critical for consistent brownout response in wide-temperature deployments.
Does MAX6711SEXS+T require an external pull-up resistor on the RESET pin?
No, MAX6711SEXS+T does not require an external pull-up resistor because it features a push-pull RESET output. The internal driver actively pulls the RESET pin low during assertion and high during deassertion, eliminating dependency on external components. This distinguishes it from the open-drain MAX6713 variants and simplifies design for systems using active-low reset inputs.
How long does the RESET signal remain asserted after VCC rises above the threshold in MAX6711SEXS+T?
In MAX6711SEXS+T, the RESET signal remains asserted for a minimum of 140ms after VCC rises above the 2.93V threshold. This timeout is guaranteed over -40°C to +85°C and extends up to 460ms at elevated temperatures (+85°C to +125°C). The fixed delay ensures µPs complete internal initialization, PLL locking, and memory self-test before release.
Can MAX6711SEXS+T operate with supply voltages below 2.93V, and what happens to RESET output below 1V?
Yes, MAX6711SEXS+T operates with VCC as low as 1.2V over -40°C to +105°C and down to 1.0V at 0°C to +70°C. Below VCC = +1V, the RESET output ceases sinking current and becomes high-impedance. For applications requiring defined logic state down to 0V, a 100kΩ pull-down resistor on RESET is recommended to prevent floating inputs on connected µP reset pins.
What is the function of the MR pin on MAX6711SEXS+T, and does it require external circuitry?
The MR pin on MAX6711SEXS+T is an active-low manual reset input with an internal 20kΩ pull-up resistor. It requires no external components: connecting a normally open switch from MR to GND generates a valid reset pulse. The input accepts TTL/CMOS logic levels and tolerates 100ns glitches. MR assertion holds RESET low immediately, and RESET remains active for ≥140ms after MR returns high - enabling robust front-panel or test-point reset capability.
MAX6711SEXS+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.93V
- 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
MAX6711SEXS+T FAQ
1.How can I place an order for MAX6711SEXS+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6711SEXS+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 MAX6711SEXS+T reliable?
The price and inventory of MAX6711SEXS+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6711SEXS+T is usually 5 days.
3.What payment methods are accepted for MAX6711SEXS+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6711SEXS+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6711SEXS+T?
MAX6711SEXS+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6711SEXS+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 MAX6711SEXS+T?
For technical support, including MAX6711SEXS+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6711SEXS+T requirements.
6.How does Aetrix verify that MAX6711SEXS+T is sourced from the original manufacturer or authorized distributors?
All MAX6711SEXS+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 MAX6711SEXS+T meets industry standards.
7.What is the process for return or replacement of MAX6711SEXS+T?
All MAX6711SEXS+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6711SEXS+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 MAX6711SEXS+T part is unused and in its original packaging.
Return procedure for MAX6711SEXS+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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