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Analog Devices Inc./Maxim Integrated MAX6468XS23D3+T
- Part No.:
- MAX6468XS23D3+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6468XS23D3+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,970
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Product details
Overview
MAX6468XS23D3+T from Analog Devices is a push-pull output microprocessor supervisory reset circuit in SC70-4 package, monitoring +2.3V supply with ±2.5% threshold accuracy over -40°C to +125°C, 150ms min reset timeout, active-low RESET assertion on VCC drop or MR edge trigger, and 3µA supply current at 1.8V - used in automotive infotainment power sequencing.
For engineers reviewing the MAX6468XS23D3+T datasheet, MAX6468XS23D3+T pinout, MAX6468XS23D3+T application, or MAX6468XS23D3+T equivalent, this page delivers verified threshold voltage (2.255V min / 2.313V typ / 2.370V max), MR debounce timing (150–300ms), open-circuit RESET validity down to VCC = +1V, and AEC-Q100-compliant automotive qualification.
Technical Context
The MAX6468XS23D3+T implements an edge-triggered, one-shot manual reset architecture with internal 1.5kΩ MR pullup and glitch rejection of 100ns transients. Its reset logic asserts RESET low on either VCC falling below 2.313V (typ) or a valid MR falling edge, then holds low for precisely 150ms (min) regardless of MR duration.
It features dual timeout paths: VCC reset timeout (150ms min) and MR one-shot timeout (150ms min), both temperature-compensated across -40°C to +125°C. The push-pull RESET output drives high to 0.8×VCC at 500µA sink/source, eliminating external pullup components required by open-drain variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.255V (min) / 2.313V (typ) / 2.370V (max) - factory-trimmed for precise +2.3V supply monitoring with ±2.5% tolerance over -40°C to +85°C |
| Reset Timeout Period | 150ms (min) / 225ms (typ) / 300ms (max) - fixed one-shot delay ensures µP reset hold time meets boot-loader requirements |
| Supply Current | 3µA at VCC = +1.8V - enables always-on monitoring in battery-backed systems without significant drain |
| Operating Voltage Range | +1.2V to +5.5V - supports operation during brownout recovery down to 1.2V while maintaining RESET validity to +1V |
| MR Input Logic | VIL ≤ 0.3×VCC (VTH < +4V); VIH ≥ 0.7×VCC - compatible with TTL/CMOS logic and open-drain drivers without level-shifting |
| RESET Output Type | Active-low push-pull - eliminates need for external pullup resistor and ensures fast rise/fall edges into capacitive loads |
| Temperature Range | -40°C to +125°C - qualified per AEC-Q100 for under-hood automotive applications |
Pinout & Package
Package: 4-pin SC70-4 (X4+1 outline), 1.3mm × 1.3mm × 0.9mm body, lead(Pb)-free/RoHS-compliant (+T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Primary return path for internal bias and RESET output sink current; requires local 0.1µF bypass to VCC |
| 2 RESET | Active-low reset output | Push-pull driver capable of sourcing 500µA at 0.8×VCC and sinking 3.2mA at 0.3V - directly interfaces µP RESET pin |
| 3 MR | Manual reset input | Edge-triggered input with internal 1.5kΩ pullup to VCC; ignores bounce within 150–300ms debounce window after rising edge |
| 4 VCC | Power and monitored supply | Supplies device and serves as monitored rail; must be bypassed with 0.1µF capacitor to GND for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Precision factory-set threshold | 2.313V typical with ±2.5% tolerance over -40°C to +85°C - eliminates calibration and external resistor dividers |
| Edge-triggered MR with one-shot | Asserts fixed 150ms RESET pulse on first MR falling edge only - prevents spurious resets from switch bounce or noise |
| Push-pull RESET output | Drives high actively without external pullup - reduces BOM count and improves rise time into 100pF load |
| Low 3µA supply current | Enables permanent supervision in energy-constrained systems such as GPS trackers and telematics modules |
| VCC = +1V RESET validity | Guarantees clean reset assertion even during deep brownout - critical for deterministic µP shutdown sequencing |
Applications
| Automotive Infotainment | Industrial PLC I/O Module |
|---|---|
Use Scenario: Power-up sequencing of head-unit SoC and display controller after cold crank. IC Role / Device Role / Timing Role: Supervises +2.3V core rail and asserts synchronized RESET to both processors within 35µs of VCC crossing threshold. Use Value: Prevents firmware lockup during 12V battery sag by guaranteeing 150ms minimum reset hold time independent of MR contact duration. |
Use Scenario: Reliable restart after field-wiring short-circuit causes transient VCC dip on isolated 3.3V logic rail. IC Role / Device Role / Timing Role: Monitors isolated DC-DC output and triggers hardware reset before watchdog timeout expires. Use Value: Immunity to 100ns glitches and guaranteed operation down to VCC = +1V ensure no false resets during EMI-heavy industrial environments. |
| Medical Patient Monitor | Telematics Control Unit |
Use Scenario: Battery backup switchover in portable ECG unit where main supply drops to 2.2V during discharge. IC Role / Device Role / Timing Role: Detects VCC decay below 2.313V and initiates controlled shutdown sequence via µP RESET pin. Use Value: Factory-trimmed threshold eliminates drift-related false triggers over 10-year product lifetime and wide temperature range. |
Use Scenario: Remote firmware update recovery after CAN bus interruption causes partial power loss in vehicle black box. IC Role / Device Role / Timing Role: Provides edge-triggered manual reset via diagnostic port to force full system reboot without physical access. Use Value: Internal MR debounce and one-shot timing prevent repeated reboots from noisy diagnostic cable connections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6384US23D3+T | Open-drain RESET output; identical 2.3V threshold and 150ms timeout; requires external pullup resistor | Suitable where board already includes pullup on shared RESET bus; not recommended for new designs needing lowest component count | Select when leveraging existing pullup network or sharing RESET line with multiple supervisors |
| TLV809E23DBZR | Fixed 2.3V threshold but only 140ms min timeout; no MR debounce; 1.8–6V operating range; SOT-23-3 package | Lacks manual reset functionality and automotive temp range; rated only to +105°C, not AEC-Q100 qualified | Choose only for cost-sensitive non-automotive applications where MR is unused and tighter timeout tolerance is acceptable |
Compared with MAX6468XS23D3+T, MAX6384US23D3+T adds design complexity via external pullup but offers pin compatibility, while TLV809E23DBZR sacrifices automotive qualification and MR robustness for lower cost and smaller footprint - neither provides the combined push-pull simplicity, AEC-Q100 compliance, and edge-triggered MR reliability of the MAX6468XS23D3+T.
Availability
MAX6468XS23D3+T is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC I/O modules, and medical patient monitors requiring stable component supply with AEC-Q100 qualification and long-term lifecycle support.
Supply support for MAX6468XS23D3+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
Analog Devices is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision sensing, power management, and reliable system control.
The MAX6467/MAX6468 product line delivers automotive-grade supervisory circuits with factory-trimmed thresholds, edge-triggered manual reset, and ultra-low quiescent current - engineered specifically for safety-critical power sequencing in harsh-temperature environments.
FAQ
What is the exact reset threshold voltage of MAX6468XS23D3+T?
The MAX6468XS23D3+T has a factory-trimmed reset threshold of 2.255V (minimum), 2.313V (typical), and 2.370V (maximum) at +25°C, with ±2.5% tolerance over -40°C to +85°C. This corresponds to the "23" suffix in the part number and is validated per Analog Devices' production test flow for automotive-grade units.
Does MAX6468XS23D3+T support manual reset with switch debouncing?
Yes, MAX6468XS23D3+T includes built-in MR rising-edge debounce with a 150–300ms window. After MR transitions from low to high, subsequent falling edges are ignored until the debounce period elapses - eliminating need for external RC networks or firmware filtering when using mechanical pushbuttons.
Is MAX6468XS23D3+T qualified for automotive applications?
Yes, MAX6468XS23D3+T is AEC-Q100 qualified for Grade 0 (-40°C to +125°C) operation and supplied in lead(Pb)-free RoHS-compliant packaging (+T). It meets automotive reliability standards including HTOL, TC, and ESD testing per AEC-Q100 Rev H.
What is the RESET timeout period for MAX6468XS23D3+T?
The MAX6468XS23D3+T uses the "D3" suffix, specifying a minimum reset timeout period of 150ms, typical of 225ms, and maximum of 300ms. This applies to both VCC-initiated and MR-initiated reset assertions and is guaranteed across the full -40°C to +125°C temperature range.
Can MAX6468XS23D3+T operate with VCC below 1.8V?
Yes, MAX6468XS23D3+T operates down to VCC = +1.2V over -40°C to 0°C and +1.0V over 0°C to +125°C. Its RESET output remains valid (logic-low or logic-high) as long as VCC stays above +1V - enabling reliable supervision during deep brownout conditions.
MAX6468XS23D3+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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.313V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6468XS23D3+T FAQ
1.How can I place an order for MAX6468XS23D3+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6468XS23D3+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 MAX6468XS23D3+T reliable?
The price and inventory of MAX6468XS23D3+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6468XS23D3+T is usually 5 days.
3.What payment methods are accepted for MAX6468XS23D3+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6468XS23D3+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6468XS23D3+T?
MAX6468XS23D3+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6468XS23D3+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 MAX6468XS23D3+T?
For technical support, including MAX6468XS23D3+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6468XS23D3+T requirements.
6.How does Aetrix verify that MAX6468XS23D3+T is sourced from the original manufacturer or authorized distributors?
All MAX6468XS23D3+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 MAX6468XS23D3+T meets industry standards.
7.What is the process for return or replacement of MAX6468XS23D3+T?
All MAX6468XS23D3+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6468XS23D3+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 MAX6468XS23D3+T part is unused and in its original packaging.
Return procedure for MAX6468XS23D3+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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