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Analog Devices Inc./Maxim Integrated MAX701CSA+
- Part No.:
- MAX701CSA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX701CSA+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:163
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Product details
Overview
MAX701CSA+ from Maxim Integrated is a precision power-supply supervisory circuit for +5V microprocessor systems, featuring dual active-low and active-high reset outputs (RESET/RESET), 4.65V factory-trimmed threshold, guaranteed valid reset down to VCC = 1V, and 200ms minimum reset pulse width. It provides system-level power-on, power-down, and brownout reset protection in industrial controllers and embedded instrumentation.
For engineers reviewing the MAX701CSA+ datasheet, MAX701CSA+ pinout, MAX701CSA+ application, or MAX701CSA+ equivalent, key selection criteria include dual-reset output polarity, manual reset debouncing, no external components required for +5V operation, and narrow-SO-8 packaging with lead-free compliance.
Technical Context
The MAX701CSA+ implements a voltage-comparator-based supervision architecture with internal reference and RC timing network to generate a minimum 200ms reset pulse on power-up, power-down, and during VCC undervoltage events below 4.65V. Its dual complementary outputs drive both active-low and active-high reset inputs on µP or logic circuits without inversion.
It supports manual reset via a debounced MR input with 5µA internal pullup and 0.7V threshold, and operates across 0°C to +70°C with supply voltage tolerance up to +15.5V. The device guarantees correct reset state down to VCC = 1V and withstands VCC slew rates up to 100V/µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.65V ±150mV (factory-trimmed for +5V systems; ensures reliable detection of VCC drop below nominal) |
| Reset Pulse Width | 200–500ms (guarantees sufficient time for µP initialization before release) |
| VCC Valid Reset Range | 1.0V to 15.5V (enables robust reset assertion even during deep brownout or high-voltage transients) |
| Supply Current | 100–200µA (ultra-low quiescent draw for battery-backed or low-power systems) |
| MR Input Threshold | 0.7V (ensures clean, noise-immune manual reset activation with standard pushbutton interface) |
| Output Drive Strength | RESET: 16mA sink / RESET: 3.2mA source (directly drives TTL/CMOS inputs without external buffers) |
Pinout & Package
MAX701CSA+ is housed in an 8-pin narrow-SO package (SOIC-8, 150mil width), RoHS-compliant and lead-free per + suffix, with standard JEDEC MS-012AC outline and 90-0096 land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Manual Reset Input | Debounced active-low input with 5µA internal pullup; asserts reset when pulled below 0.7V |
| 2 GND | Ground Reference | Primary return path for all internal comparators, timers, and output drivers |
| 3 RESET | Active-Low Reset Output | Open-drain NMOS output; sinks up to 16mA at VCC = 5V; requires external pullup |
| 4 RESET | Active-High Reset Output | Push-pull CMOS output; sources up to 3.2mA; directly interfaces with µP reset pins requiring high-active signal |
| 5 VCC | Power Supply Input | +5V nominal supply and internal voltage-sense node; supports up to +15.5V transient tolerance |
| 6 N.C. | No Connection | Internally unconnected; must be left floating or tied to GND per layout best practice |
| 7 N.C. | No Connection | Internally unconnected; must be left floating or tied to GND per layout best practice |
| 8 N.C. | No Connection | Internally unconnected; must be left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Dual Complementary Reset Outputs | Simultaneous RESET (active-low) and RESET (active-high) eliminate need for external inverters in mixed-logic systems |
| Factory-Trimmed 4.65V Threshold | ±150mV accuracy over 0°C to +70°C eliminates calibration and reduces BOM count for +5V applications |
| 200ms Minimum Reset Pulse | Guaranteed duration ensures full µP core and peripheral initialization before release, even under fast-rising VCC |
| Debounced Manual Reset Input | Internal filtering removes contact bounce from mechanical pushbuttons, preventing spurious resets |
| 1V Minimum VCC Operation | Valid reset assertion continues down to VCC = 1V, enabling fail-safe behavior during severe brownout conditions |
Applications
| Industrial PLC Controllers | Medical Diagnostic Instruments |
|---|---|
Use Scenario: Power sequencing and fault recovery in programmable logic controller backplanes with multiple +5V rails. IC Role / Device Role / Timing Role: Primary supervisor generating synchronized active-low and active-high reset signals to CPU, FPGA, and I/O ASICs. Use Value: Ensures deterministic boot state after AC loss or hot-swap events, with 200ms pulse meeting Intel/ARM µP reset timing requirements. | Use Scenario: Critical power monitoring in portable ultrasound and ECG units where battery voltage sag must trigger controlled shutdown. IC Role / Device Role / Timing Role: Brownout detector and reset generator interfacing directly with ARM Cortex-M4 reset pin and PMIC enable lines. Use Value: Factory-trimmed 4.65V threshold and 1V operational floor guarantee reset integrity during Li-ion discharge from 4.2V to 3.0V. |
| Network Edge Routers | Automated Test Equipment (ATE) |
Use Scenario: Multi-rail supervision in Layer-3 switch line cards with independent +5V, +3.3V, and +1.8V domains. IC Role / Device Role / Timing Role: Dedicated +5V rail monitor feeding reset arbiter logic; MR pin used for remote firmware-triggered reboot. Use Value: Debounced MR input enables safe, bounce-free remote reset via GPIO-controlled FET, eliminating false triggers in noisy telecom environments. | Use Scenario: Power-good validation and board-level reset coordination in modular ATE mainframes with hot-pluggable instrument modules. IC Role / Device Role / Timing Role: System-level reset initiator that holds test controller in reset until all module supplies stabilize. Use Value: Dual-output architecture allows simultaneous reset of legacy TTL-based timing generators and modern LVDS-based digitizers without level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G33DBVR | Single active-low reset output; 3.3V fixed threshold; 200ms adjustable via external capacitor | Lacks complementary RESET output; requires external inverter for active-high reset; optimized for 3.3V systems | Select when only one reset polarity is needed and 3.3V rail supervision dominates the design |
| ADM6713ARTZ-465ARZ | Single active-low reset; identical 4.65V threshold; 240ms fixed pulse; SOT-23-5 package | No manual reset input; smaller footprint but no MR capability; lower drive strength (20mA sink) | Select when board space is constrained and manual reset is not required |
Compared with TPS3808G33DBVR and ADM6713ARTZ-465ARZ, the MAX701CSA+ uniquely delivers dual-polarity reset outputs and integrated debounced MR in SO-8, making it optimal for +5V systems needing both reset polarities and field-serviceable reboot capability.
Availability
MAX701CSA+ is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic instruments, and network edge routers requiring stable component supply, long-term lifecycle support, and RoHS-compliant narrow-SO packaging.
Supply support for MAX701CSA+ 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 is a U.S.-based semiconductor company specializing in analog and mixed-signal ICs, acquired by Analog Devices in 2021, with core expertise in power management, sensing, and interface solutions.
The MAX700/MAX701/MAX702 family was designed specifically for cost-sensitive, high-reliability +5V microprocessor supervision-emphasizing zero-external-component operation, guaranteed reset timing, and robust manual reset functionality.
FAQ
What is the reset threshold voltage of the MAX701CSA+ and how accurate is it?
The MAX701CSA+ features a factory-trimmed reset threshold of 4.65V with a guaranteed tolerance of ±150mV over the full 0°C to +70°C temperature range. This accuracy eliminates the need for external resistor dividers or calibration in +5V systems. The threshold is specified for both power-up and power-down conditions, ensuring consistent behavior during supply ramp-up and brownout events. All MAX701CSA+ units meet this specification without user adjustment.
Does the MAX701CSA+ require external components to operate with a +5V supply?
No, the MAX701CSA+ requires no external components when used with a +5V supply. Its internal voltage reference, comparator, and timing circuitry are fully self-contained. The device generates a guaranteed minimum 200ms reset pulse using an on-chip RC network. Only decoupling capacitance (0.1µF ceramic) near VCC is recommended for noise immunity-no resistors, capacitors, or diodes are needed for basic supervision functionality.
What is the function of the RESET and RESET pins on the MAX701CSA+?
The MAX701CSA+ provides two complementary reset outputs: RESET is an open-drain active-low output that sinks up to 16mA, requiring an external pullup resistor; RESET is a push-pull active-high output that sources up to 3.2mA. These outputs are asserted simultaneously when VCC drops below 4.65V or when the MR pin is activated. This dual-output architecture allows direct interface with both legacy µP reset inputs (active-low) and newer logic families requiring active-high reset assertion.
Can the MAX701CSA+ operate below 5V, and what is its minimum functional VCC?
Yes, the MAX701CSA+ remains fully functional down to VCC = 1.0V. Its internal reset circuitry guarantees correct output states (RESET low, RESET high) for VCC voltages as low as 1V, enabling reliable brownout detection and fail-safe reset assertion during deep supply sags. This capability is verified across temperature and load conditions, and is critical for applications like battery-powered instruments where VCC may decay below 3V before shutdown.
Is the MAX701CSA+ pin-compatible with other members of the MAX700/MAX701/MAX702 family?
The MAX701CSA+ shares the same 8-pin narrow-SO package and pinout as MAX700CSA+ and MAX702CSA+, but functional differences exist: MAX700 includes SENSE/HYST/CTL pins (not connected on MAX701), while MAX702 lacks RESET and has different NC pin assignments. Therefore, MAX701CSA+ is not a drop-in replacement for MAX700CSA+ or MAX702CSA+ without schematic review. Always verify pin functions against the specific device's pin description table before substitution.
MAX701CSA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.65V
- Output:
- Push-Pull, Push-Pull
- Reset:
- Active High/Active Low
- Reset Timeout:
- 200ms Minimum
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX701CSA+ FAQ
1.How can I place an order for MAX701CSA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX701CSA+ 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 MAX701CSA+ reliable?
The price and inventory of MAX701CSA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX701CSA+ is usually 5 days.
3.What payment methods are accepted for MAX701CSA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX701CSA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX701CSA+?
MAX701CSA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX701CSA+ 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 MAX701CSA+?
For technical support, including MAX701CSA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX701CSA+ requirements.
6.How does Aetrix verify that MAX701CSA+ is sourced from the original manufacturer or authorized distributors?
All MAX701CSA+ 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 MAX701CSA+ meets industry standards.
7.What is the process for return or replacement of MAX701CSA+?
All MAX701CSA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX701CSA+, 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 MAX701CSA+ part is unused and in its original packaging.
Return procedure for MAX701CSA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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