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Analog Devices Inc./Maxim Integrated MAX6711REXS-T
- Part No.:
- MAX6711REXS-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6711REXS-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:71,950
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Product details
Overview
MAX6711REXS-T from Maxim Integrated is a precision microprocessor supervisory circuit with push-pull active-low RESET output, designed to monitor +2.5V supply rails in embedded systems. It asserts reset when VCC falls below 2.63V (typ), maintains reset for ≥140ms after VCC recovery, and draws only 12µA supply current at +2.5V - enabling reliable power-on reset in battery-powered instrumentation and critical µP applications.
For engineers reviewing the MAX6711REXS-T datasheet, MAX6711REXS-T pinout, MAX6711REXS-T application, or MAX6711REXS-T equivalent, key selection considerations include its 2.63V reset threshold tolerance (±0.05V over -40°C to +85°C), guaranteed RESET validity down to VCC = +1V, SC70-4 package footprint, and manual reset input with internal 20kΩ pull-up.
Technical Context
The MAX6711REXS-T implements a precision bandgap-based voltage comparator with 30ppm/°C tempco to detect VCC drops below its factory-trimmed 2.63V threshold. Its push-pull RESET output drives low to 0.3V at 1.2mA sink load while VCC ≥ 1V, ensuring clean logic-level assertion to µP reset inputs.
It integrates a debounced manual reset (MR) input with 1µs minimum pulse width support and 100ns glitch immunity. MR remains active-low during assertion and holds RESET asserted for ≥140ms after MR release - eliminating need for external RC timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.63V (typ) at +25°C; ±0.05V over -40°C to +85°C - ensures deterministic brownout detection for +2.5V systems |
| Supply Current | 12µA (typ) at VCC = +2.5V and TA ≤ +85°C - enables multi-year operation in coin-cell–powered devices |
| Reset Timeout | 140ms (min) power-on reset pulse width - meets Intel-compatible µP reset timing requirements |
| RESET Output Type | Active-low push-pull - eliminates external pull-up resistor; sinks 1.2mA at VOL ≤ 0.3V |
| Operating Temp Range | -40°C to +125°C - supports industrial and automotive under-hood environments |
| VCC Validity Range | 1.0V to 5.5V - allows RESET assertion even during deep brownout conditions before µP loses functionality |
| MR Input Logic | Active-low with internal 20kΩ pull-up - supports direct switch-to-ground connection without external biasing |
Pinout & Package
MAX6711REXS-T is housed in a 4-pin SC70 package (outline X4-1, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm - compatible with high-density PCB layouts and reflow soldering processes.
| 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 accuracy |
| 2 RESET | Active-low push-pull reset output | Drives low (≤0.3V) during reset assertion; actively drives high (≥0.8×VCC) when deasserted - no external pull-up required |
| 3 MR | Manual reset input | Active-low input with internal 20kΩ pull-up; accepts TTL/CMOS logic or momentary switch to GND; 1µs minimum pulse width |
| 4 VCC | Supply voltage input | Accepts +1.0V to +5.5V; powers internal comparator and output stage; reset monitoring applies to this rail |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.63V threshold | Factory-trimmed ±0.05V tolerance over temperature - eliminates calibration overhead in +2.5V systems |
| No external components | Integrated MR pull-up, reset timer, and comparator - reduces BOM count and board area vs. discrete solutions |
| 140ms min reset timeout | Guaranteed minimum pulse width across full temperature range - ensures µP initialization completes before code execution |
| VCC transient immunity | Rejects <20µs negative glitches ≥100mV below threshold - prevents spurious resets in noisy power environments |
| Valid RESET down to VCC = +1V | Output remains functional during deep brownout - maintains system reset state until µP is fully non-operational |
Applications
| Portable/Battery-Powered Equipment | Critical µP and µC Power Monitoring |
|---|---|
|
Use Scenario: Coin-cell–powered handheld test meters requiring multi-year shelf life and reliable cold-start behavior. IC Role / Device Role / Timing Role: Supervisory IC asserting active-low reset to ARM Cortex-M0 µP during battery insertion and low-VCC brownout events. Use Value: 12µA quiescent current extends battery life; 140ms reset pulse ensures µP completes boot ROM initialization before firmware execution. |
Use Scenario: Industrial PLC controller modules where undetected power faults could cause unsafe actuator states. IC Role / Device Role / Timing Role: Primary power-fail detector triggering watchdog reset and safe shutdown sequence upon +2.5V rail collapse. Use Value: 30ppm/°C tempco guarantees consistent 2.63V trip point across -40°C to +125°C - prevents false resets in thermal cycling environments. |
| Intelligent Instruments | Computers |
|
Use Scenario: Portable gas analyzers with integrated ADC and LCD display powered from regulated +2.5V LDO. IC Role / Device Role / Timing Role: System-level reset coordinator asserting synchronized reset to µP, ADC, and display controller on power-up and brownout. Use Value: Push-pull RESET eliminates need for shared pull-up resistor - avoids contention when multiple ICs drive same reset bus. |
Use Scenario: Embedded x86-based edge computing nodes in fanless enclosures with thermally constrained +2.5V I/O supply. IC Role / Device Role / Timing Role: Dedicated supervisor for +2.5V PCIe interface rail, independent of main CPU VCC monitoring. Use Value: MR input enables hardware-initiated recovery via front-panel reset button - bypasses software hang conditions without requiring system reboot. |
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. 2.63V); identical SC70-4 package and push-pull output | Designed for +3.3V systems; not suitable for +2.5V brownout detection without margin loss | Select MAX6711TES-T only when monitoring +3.3V rails - threshold mismatch risks premature reset in +2.5V designs |
| TPS3123E18DBVR | 1.8V fixed threshold; SOT-23-5 package; 1.6µA supply current; no manual reset input | Lacks MR pin and higher-voltage compatibility; optimized for ultra-low-power +1.8V logic domains | Choose TPS3123E18DBVR only for new +1.8V ASIC designs requiring sub-2µA quiescent current - sacrifices manual reset and voltage flexibility |
Compared with MAX6711REXS-T, MAX6711TES-T offers higher threshold for +3.3V systems but cannot replace it in +2.5V applications due to insufficient detection margin, while TPS3123E18DBVR reduces supply current by 87% but removes manual reset capability and requires PCB redesign for SOT-23-5 layout.
Availability
MAX6711REXS-T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, critical µP and µC power monitoring, and intelligent instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6711REXS-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX6711 family delivers precision voltage supervision for microprocessor systems, targeting applications demanding accurate brownout detection, low power consumption, and minimal external components in space-constrained designs.
FAQ
What is the exact reset threshold voltage of the MAX6711REXS-T and how does it vary with temperature?
The MAX6711REXS-T has a factory-trimmed reset threshold of 2.63V (typ) at +25°C, with guaranteed limits of 2.59V (min) to 2.66V (max) at +25°C. Over the full operating range of -40°C to +85°C, the threshold stays within 2.55V to 2.70V, exhibiting a tight 30ppm/°C temperature coefficient - ensuring stable brownout detection in thermally varying environments without recalibration.
Does the MAX6711REXS-T require an external pull-up resistor on its RESET pin?
No, the MAX6711REXS-T features a push-pull RESET output that actively drives both high and low states. When deasserted, it sources current to pull RESET to ≥0.8×VCC; when asserted, it sinks current to pull RESET to ≤0.3V at 1.2mA load. This eliminates the need for an external pull-up resistor - simplifying layout and avoiding contention in multi-device reset buses.
Can the MAX6711REXS-T operate reliably when VCC drops below 2.0V?
Yes, the MAX6711REXS-T guarantees valid RESET output functionality down to VCC = +1.0V. Below this voltage, the output transitions to high-impedance, but within the 1.0V–2.5V range, it maintains full logic-level performance - allowing the device to assert reset during deep brownout conditions before the monitored µP ceases operation.
How is the manual reset (MR) input configured on the MAX6711REXS-T?
The MR input on the MAX6711REXS-T is active-low with an internal 20kΩ pull-up resistor. It can be left unconnected (defaulting to high), driven by TTL/CMOS logic, or tied directly to ground via a momentary switch. The input accepts pulses as short as 1µs and rejects noise spikes <100ns - enabling robust hardware reset initiation without external debounce circuitry.
What package type and dimensions does the MAX6711REXS-T use?
The MAX6711REXS-T uses a 4-pin SC70 package (outline X4-1, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm. This compact footprint supports high-density PCB layouts and standard reflow soldering profiles - making it suitable for space-constrained portable and instrumentation designs.
MAX6711REXS-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- 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
MAX6711REXS-T FAQ
1.How can I place an order for MAX6711REXS-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6711REXS-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 MAX6711REXS-T reliable?
The price and inventory of MAX6711REXS-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6711REXS-T is usually 5 days.
3.What payment methods are accepted for MAX6711REXS-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6711REXS-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6711REXS-T?
MAX6711REXS-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6711REXS-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 MAX6711REXS-T?
For technical support, including MAX6711REXS-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6711REXS-T requirements.
6.How does Aetrix verify that MAX6711REXS-T is sourced from the original manufacturer or authorized distributors?
All MAX6711REXS-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 MAX6711REXS-T meets industry standards.
7.What is the process for return or replacement of MAX6711REXS-T?
All MAX6711REXS-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6711REXS-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 MAX6711REXS-T part is unused and in its original packaging.
Return procedure for MAX6711REXS-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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