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Analog Devices Inc./Maxim Integrated MAX6713SEXS+T
- Part No.:
- MAX6713SEXS+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6713SEXS+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,660
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Product details
Overview
MAX6713SEXS+T from Maxim Integrated is a microprocessor supervisory circuit with open-drain active-low RESET output, designed to monitor +2.93V power supplies in embedded digital systems. It provides 140ms minimum reset timeout, 12µA supply current at +2.93V, 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 MAX6713SEXS+T datasheet, MAX6713SEXS+T pinout, MAX6713SEXS+T application, or MAX6713SEXS+T equivalent, key selection criteria include reset threshold accuracy (±0.04V over -40°C to +85°C), manual reset input with internal 20kΩ pull-up, immunity to VCC transients ≤20µs at 100mV overdrive, and SC70-4 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6713SEXS+T implements a precision bandgap-based voltage comparator with 30ppm/°C tempco to detect VCC drops below its 2.93V threshold. Its open-drain RESET output supports level-shifting to higher-voltage rails via external pull-up, enabling interoperability with bidirectional µP reset pins like those on Motorola 68HC11.
Reset assertion occurs when VCC falls below 2.93V or MR is pulled low; deassertion requires VCC >2.93V plus ≥140ms timeout or MR high plus ≥140ms timeout. The device ignores fast transients (≤100ns glitch immunity on MR, ≤20µs at 100mV overdrive on VCC) and maintains valid logic states down to VCC = +1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.93V ±0.04V (2.89V–2.96V) at +25°C; ensures reliable brownout detection before critical µP operation fails |
| Supply Current | 12µA typical at VCC = +2.93V and TA = +25°C; enables multi-year battery life in portable equipment |
| Reset Timeout | 140ms minimum after VCC rise or MR release; meets JEDEC JESD78 requirement for µP initialization stability |
| VCC Operating Range | +1.0V to +5.5V; allows operation during deep brownout while maintaining RESET assertion integrity |
| MR Input Threshold | VIL = 0.3×VCC, VIH = 0.7×VCC; compatible with TTL/CMOS logic without level-shifting circuitry |
| RESET Output Type | Open-drain with <1µA leakage when deasserted; supports wired-OR configurations and multi-rail reset coordination |
| Temperature Range | -40°C to +125°C; qualified for industrial and extended-temperature embedded control environments |
Pinout & Package
MAX6713SEXS+T is housed in a 4-pin SC70 package (outline X4-1, land pattern 90-0187), measuring 1.25mm × 0.85mm × 0.55mm, suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal comparator and reset driver; must be connected to system ground plane for noise immunity |
| 2 RESET | Open-drain active-low reset output | Drives low during reset; requires external pull-up resistor (to VCC or higher rail); sinks ≥1.2mA at VOL ≤0.3V |
| 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 | Monitored power rail (+2.93V nominal); powers internal circuitry and defines MR logic thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.93V reset threshold | ±0.04V tolerance over -40°C to +85°C ensures deterministic reset timing across temperature without calibration |
| 140ms minimum reset timeout | Guaranteed hold time prevents premature µP execution during unstable power ramp-up or recovery |
| Open-drain RESET with level-shift capability | Enables reset coordination across multiple voltage domains (e.g., +2.93V monitored rail → +3.3V or +5V logic domain) |
| 12µA ultra-low supply current | Reduces quiescent power draw in always-on monitoring circuits, critical for coin-cell or energy-harvesting systems |
| MR input with internal 20kΩ pull-up | Eliminates external bias resistor; supports direct switch-to-ground connection without debounce components |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Battery-powered glucose monitors requiring fail-safe startup after cold boot or low-battery recovery. IC Role / Device Role / Timing Role: Supervisory IC asserting active-low RESET until +2.93V rail stabilizes and holds for ≥140ms. Use Value: Prevents corrupted sensor data acquisition by ensuring µC enters known state only after stable power and clock conditions are met. |
Use Scenario: DIN-rail mounted programmable logic controller modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Power-monitoring supervisor detecting brownouts on +2.93V FPGA configuration rail. Use Value: Triggers controlled I/O shutdown and safe state retention during transient line sags, avoiding spurious actuator commands. |
| Handheld Test Instruments | Smart Energy Meters |
|
Use Scenario: Field-deployable multimeters powered by rechargeable Li-ion cells with variable discharge profiles. IC Role / Device Role / Timing Role: Voltage supervisor monitoring regulated +2.93V supply derived from buck converter output. Use Value: Guarantees consistent boot sequence across 3.0V–4.2V battery range by asserting reset below 2.89V threshold. |
Use Scenario: Revenue-grade electricity meters exposed to wide ambient temperatures (-40°C to +85°C). IC Role / Device Role / Timing Role: Reset generator maintaining valid RESET signal down to VCC = +1V during capacitor hold-up decay. Use Value: Ensures nonvolatile memory write completion and tamper-flag latching before complete power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6713TEXS+T | 3.08V reset threshold (vs. 2.93V); otherwise identical pinout, timing, and electrical specs | Targets +3.3V systems with tighter margin; not suitable where 2.93V threshold is required for early brownout detection | Select MAX6713TEXS+T only if system nominal supply is +3.3V and design requires reset at ~3.08V rather than 2.93V |
| TPS3808G125DBVR | 2.5V fixed threshold, push-pull output, 1.8V–6.0V VCC range, 16µA ICC; no manual reset input | Lacks MR functionality; requires external circuitry for manual reset; better suited for simple power-good monitoring | Choose TPS3808G125DBVR only when manual reset is unnecessary and 2.5V threshold aligns with system requirements |
Compared with MAX6713TEXS+T and TPS3808G125DBVR, the MAX6713SEXS+T uniquely combines 2.93V precision threshold, open-drain output for multi-rail flexibility, and integrated manual reset-making it optimal for portable +2.93V systems requiring field-serviceable reset capability and level-shifted reset signaling.
Availability
MAX6713SEXS+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, intelligent instruments, critical µP power monitoring, and industrial controllers requiring stable component supply across extended temperature ranges.
Supply support for MAX6713SEXS+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, automotive, communications, and computing applications.
The MAX671x family delivers highly accurate, low-power supervisory circuits targeting space-constrained embedded systems needing deterministic reset behavior under brownout, power-up, and manual intervention conditions.
FAQ
What is the exact reset threshold voltage of MAX6713SEXS+T and how does it vary with temperature?
The MAX6713SEXS+T has a nominal reset threshold of 2.93V, with a guaranteed range of 2.89V to 2.96V at +25°C. Over the full operating temperature range (-40°C to +85°C), the threshold varies by ±0.05V (2.85V to 3.00V), exhibiting a tempco of 30ppm/°C. This tight specification ensures predictable reset timing in battery-powered instruments where supply voltage droop must trigger reset before µP functional failure occurs. The MAX6713SEXS+T datasheet confirms these values in the Electrical Characteristics table under "MAX671_S" variant.
Does MAX6713SEXS+T require an external pull-up resistor on the RESET pin, and what value is recommended?
Yes, MAX6713SEXS+T requires an external pull-up resistor on the RESET pin because it features an open-drain output stage. A 10kΩ to 100kΩ resistor connected to a voltage rail (up to +6.0V) is recommended. Typical designs use 47kΩ to +3.3V for portable systems. This pull-up ensures proper logic-high level when RESET is deasserted and enables level-shifting functionality-critical when coordinating reset across different voltage domains. The MAX6713SEXS+T's RESET leakage remains <1µA, minimizing current draw through the pull-up.
Can MAX6713SEXS+T operate with VCC below 2.93V and still assert a valid RESET signal?
Yes, MAX6713SEXS+T guarantees valid RESET assertion down to VCC = +1.0V. Below 2.93V, the internal comparator triggers RESET low and maintains it until VCC rises above threshold plus hysteresis. Even at VCC = +1.0V, the output remains functional with VOL ≤0.3V at 1.2mA sink current. This capability ensures robust brownout protection in battery-powered devices where supply voltage decays gradually, allowing safe µP shutdown before data corruption occurs. The MAX6713SEXS+T specification explicitly states this in the Absolute Maximum Ratings and Electrical Characteristics sections.
How does the manual reset (MR) input function on MAX6713SEXS+T, and what external components are needed?
The MR input on MAX6713SEXS+T is an active-low signal with an internal 20kΩ pull-up resistor, so no external bias is required. It accepts TTL/CMOS logic levels or can be driven directly by a momentary switch to ground. A 1µs minimum pulse width is sufficient to trigger reset, and the device holds RESET asserted for ≥140ms after MR returns high. In noisy environments, adding a 0.1µF capacitor from MR to ground improves immunity. This integrated design eliminates discrete pull-up resistors and debounce circuitry-reducing BOM count and board area for the MAX6713SEXS+T.
Is MAX6713SEXS+T compatible with bidirectional µP reset pins such as those found on Motorola 68HC11 microcontrollers?
Yes, MAX6713SEXS+T is explicitly designed for interoperability with bidirectional µP reset pins. Its open-drain RESET output allows direct connection to µPs like the Motorola 68HC11 using a single external pull-up resistor. Either the MAX6713SEXS+T or the µP can drive the shared reset line low to initiate system reset-enabling coordinated hardware/software reset sequences without contention. This capability is documented in the MAX6713SEXS+T datasheet Figure 3 ("Interfacing to µPs with Bidirectional Reset I/O") and forms a core advantage over push-pull alternatives.
MAX6713SEXS+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:
- Open Drain or Open Collector
- 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
MAX6713SEXS+T FAQ
1.How can I place an order for MAX6713SEXS+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6713SEXS+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 MAX6713SEXS+T reliable?
The price and inventory of MAX6713SEXS+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6713SEXS+T is usually 5 days.
3.What payment methods are accepted for MAX6713SEXS+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6713SEXS+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6713SEXS+T?
MAX6713SEXS+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6713SEXS+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 MAX6713SEXS+T?
For technical support, including MAX6713SEXS+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6713SEXS+T requirements.
6.How does Aetrix verify that MAX6713SEXS+T is sourced from the original manufacturer or authorized distributors?
All MAX6713SEXS+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 MAX6713SEXS+T meets industry standards.
7.What is the process for return or replacement of MAX6713SEXS+T?
All MAX6713SEXS+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6713SEXS+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 MAX6713SEXS+T part is unused and in its original packaging.
Return procedure for MAX6713SEXS+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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