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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:2,330
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Product details
Overview
MAX701CSA from Maxim Integrated is a precision power-supply supervisory IC for +5V microprocessor systems, providing dual active-low and active-high reset outputs with guaranteed valid state down to VCC = 1V, 4.65V factory-trimmed reset threshold, ≥200ms reset pulse width, and debounced manual-reset input. It ensures reliable system initialization in embedded controllers and intelligent instruments.
For engineers reviewing the MAX701CSA datasheet, MAX701CSA pinout, MAX701CSA application, or MAX701CSA equivalent, this page delivers verified electrical parameters, package mapping to 8-pin narrow-SO, functional role in power-fail detection and cold-start sequencing, and validated alternative options for industrial µP monitoring designs.
Technical Context
The MAX701CSA implements a dual-output reset architecture with independent RESET (active-low) and RESET (active-high) signals, both asserted when VCC drops below 4.65V or during manual reset via MR. Its internal comparator guarantees correct output state for VCC ≥1V, eliminating external supervision circuitry in +5V systems.
It features no external components required for basic operation, built-in 30mV hysteresis on the reset threshold, and a debounced MR input with 5µA internal pullup. The device operates across 0°C to +70°C and supports supply voltages up to +15.5V absolute maximum.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.65V ±150mV (factory-trimmed for +5V systems; ensures deterministic reset at nominal supply) |
| Reset Pulse Width | 200–500ms (guarantees sufficient µP reset hold time across power-up, power-down, and brownout) |
| VCC Valid Range | 1.0V to 15.5V (enables valid reset assertion even during deep brownout or partial power loss) |
| Supply Current | 100–200µA (ultra-low quiescent draw preserves battery life in always-on monitoring) |
| MR Input Threshold | 0.7V (TTL-compatible manual reset activation; debounced internally to reject switch bounce) |
| Output Drive Strength | RESET: 16mA sink / 3.2mA source; RESET: 3.2mA sink / 3.2mA source (directly drives µP reset pins without buffers) |
| Operating Temp | 0°C to +70°C (commercial-grade thermal range suitable for non-automotive embedded environments) |
Pinout & Package
MAX701CSA is housed in an 8-pin narrow-SO (SOIC-8) package, 3.9mm body width, 1.27mm pitch, RoHS-compliant with lead-free option available (add '+' suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MR | Manual Reset Input | Debounced active-low input with 5µA internal pullup; initiates reset on logic-low transition |
| 2 GND | Ground Reference | Primary return path for all internal comparators and output drivers; must be low-impedance |
| 3 RESET | Active-Low Reset Output | Open-drain output; sinks up to 16mA; requires external pullup for µP reset pin compatibility |
| 4 RESET | Active-High Reset Output | Push-pull output; sources/sinks 3.2mA; directly interfaces with µP reset inputs requiring high-active signal |
| 5 VCC | Power Supply Input | +5V nominal supply input; also serves as monitored voltage source when CTL = GND (default mode) |
| 6 N.C. | No Connection | Internally unconnected; must remain floating; not bonded or tied internally |
| 7 N.C. | No Connection | Internally unconnected; must remain floating; not bonded or tied internally |
| 8 N.C. | No Connection | Internally unconnected; must remain floating; not bonded or tied internally |
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 | Eliminates external resistor dividers and calibration for standard +5V rails, reducing BOM count and layout area |
| Guaranteed reset validity down to 1V VCC | Ensures deterministic reset behavior during severe brownouts where many supervisors fail or float unpredictably |
| 200ms minimum reset pulse width | Meets or exceeds Intel and ARM µP reset timing requirements without external RC timing networks |
| Debounced MR input | Internal digital debounce rejects mechanical switch bounce up to 10ms, removing need for external RC or firmware filtering |
Applications
| Industrial PLC Controllers | Medical Diagnostic Instruments |
|---|---|
Use Scenario: Power sequencing and fault recovery in programmable logic controllers operating in noisy factory environments. IC Role / Device Role / Timing Role: Primary power-fail detector and cold-start sequencer, asserting reset until stable +5V is confirmed. Use Value: Prevents corrupted I/O states and firmware lockups by guaranteeing ≥200ms reset hold after VCC rise and during transient dips. |
Use Scenario: Ensuring deterministic boot integrity in portable ultrasound and ECG devices with battery-backed +5V rails. IC Role / Device Role / Timing Role: Supervisory guardrail that monitors main supply and triggers controlled restart on brownout or battery sag. Use Value: Maintains regulatory compliance for safe startup by enforcing minimum reset pulse width and valid low-VCC output state. |
| Network Edge Routers | Automated Test Equipment (ATE) |
Use Scenario: Reliable reboot coordination across multi-rail FPGA and PHY subsystems during AC mains interruption. IC Role / Device Role / Timing Role: Centralized reset arbiter generating synchronized active-low and active-high signals for heterogeneous logic families. Use Value: Eliminates race conditions between power rails using dual-output architecture and built-in hysteresis. |
Use Scenario: Power-cycle control and self-test initiation in benchtop ATE platforms with strict reset timing repeatability. IC Role / Device Role / Timing Role: Precision reset generator triggered by front-panel MR button or power supervisor feedback loop. Use Value: Delivers sub-millisecond debounce accuracy and 200ms+ pulse consistency across 10,000+ test cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar power-supply monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3808G01DBVR | Single active-low reset output; 1% threshold accuracy; 200ms fixed delay; 1.8–6V VCC range | Lacks complementary RESET output; requires external inverter for active-high interface | Select when only one reset polarity is needed and tighter threshold tolerance (±1%) is prioritized over dual-output flexibility |
| ADM6710ARTZ-REEL7 | Single active-low reset; 2.93V threshold; 200ms min pulse; 1.8–5.5V VCC; includes watchdog timer | Lower threshold unsuitable for +5V-only systems; adds watchdog functionality not present in MAX701CSA | Choose when system-level watchdog supervision is required alongside reset, and 2.93V trip point aligns with auxiliary rail monitoring |
Compared with TPS3808G01DBVR and ADM6710ARTZ-REEL7, the MAX701CSA uniquely provides simultaneous RESET/RESET outputs in a single 8-pin SO package, enabling direct interface with both NMOS and PMOS reset domains without external logic - critical for space-constrained industrial controllers.
Availability
MAX701CSA is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic instruments, network edge routers, and automated test equipment requiring stable component supply and long-term production continuity.
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 (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications, emphasizing reliability, integration, and low-power operation.
The MAX700/MAX701/MAX702 family was engineered specifically for robust, low-component-count power supervision in +5V microprocessor systems - targeting cost-sensitive yet mission-critical embedded control applications.
FAQ
What is the reset threshold voltage of the MAX701CSA?
The MAX701CSA features a factory-trimmed reset threshold of 4.65V, with a guaranteed tolerance of ±150mV across the full operating temperature range (0°C to +70°C). This value applies to both power-up and power-down transitions and is optimized for +5V systems. The MAX701CSA does not support adjustable thresholds - that capability is exclusive to the MAX700 variant.
Does the MAX701CSA require external components for basic reset functionality?
No, the MAX701CSA requires zero external components to deliver fully functional reset supervision on a +5V rail. Its 4.65V threshold is factory-trimmed, the MR input includes a 5µA internal pullup, and both RESET and RESET outputs are fully buffered. Only optional pullup resistors on RESET may be needed depending on the target µP's input requirements.
What is the minimum VCC voltage at which the MAX701CSA guarantees correct reset output state?
The MAX701CSA guarantees correct RESET and RESET output logic states for VCC voltages as low as +1.0V - verified down to 0V in characterization. This ensures deterministic behavior during deep brownouts where other supervisors may float or oscillate, making the MAX701CSA especially valuable in battery-backed or unregulated supply environments.
How does the manual reset (MR) input behave on the MAX701CSA?
The MR input on the MAX701CSA is an active-low, debounced signal with a 0.7V logic threshold and internal 5µA pullup. A logic-low pulse ≥100ns triggers a full reset cycle, and internal digital debounce rejects transients shorter than ~10ms. No external capacitor or resistor is required for reliable pushbutton operation.
Is the MAX701CSA pin-compatible with other members of the MAX700/MAX701/MAX702 family?
Yes - the MAX701CSA shares identical pinout and package (8-pin narrow-SO) with MAX700CSA and MAX702CSA. However, functionality differs: MAX700CSA supports SENSE/CTL/HYST pins for adjustable thresholds, while MAX702CSA lacks RESET and uses different pin assignments. Always verify function mapping 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:
- Obsolete
- 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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