Analog Devices Inc./Maxim Integrated MAX6354TYUK+T
- Part No.:
- MAX6354TYUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6354TYUK+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:

- Shipping:

Inventory:3,802
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Product details
Overview
MAX6354TYUK+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit with active-low push-pull reset output referenced to VCC2, precision factory-set thresholds of 3.08V (VCC1) and 2.19V (VCC2), 20µA supply current, and guaranteed RESET validity down to VCC1 ≥ 1.0V or VCC2 ≥ 1.0V - used in multivoltage embedded systems requiring reliable power-on and brownout detection.
For engineers reviewing the MAX6354TYUK+T datasheet, MAX6354TYUK+T pinout, MAX6354TYUK+T application, or MAX6354TYUK+T equivalent, key selection considerations include its VCC2-referenced RST output, dual-threshold monitoring capability, -40°C to +85°C operation, SOT23-5 package footprint, and compatibility with systems using 3.3V/2.2V or 3.0V/2.2V supply pairs.
Technical Context
The MAX6354TYUK+T monitors two independent supply rails (VCC1 and VCC2) and asserts its single active-low push-pull reset output (RST) when either falls below its respective threshold - 3.08V for VCC1 and 2.19V for VCC2. Its reset pulse width is guaranteed ≥100ms, and the output remains valid as long as at least one supply stays ≥1.0V.
It features a debounced TTL/CMOS-compatible manual-reset input (MR), operates without external components in dual-voltage systems, and provides power-supply transient immunity. Unlike MAX6358–MAX6360 variants, it does not include a watchdog timer input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 3.08V ±0.05V at +25°C; ensures precise 3.0V rail monitoring with 3.00V to 3.15V range over -40°C to +85°C |
| VCC2 Threshold | 2.19V ±0.03V at +25°C; enables accurate 2.2V rail supervision with 2.13V to 2.25V tolerance across full temperature range |
| Supply Current | 20µA typical; supports ultra-low-power battery-backed or energy-constrained applications |
| Reset Pulse Width | 100ms minimum; guarantees sufficient duration for microprocessor initialization and state clearing |
| Operating Temp | -40°C to +85°C; qualified for industrial-grade embedded systems without derating |
| Reset Output Type | Active-low push-pull referenced to VCC2; eliminates need for external pull-up and drives directly into CMOS inputs |
| MR Input Compatibility | TTL/CMOS-debounced; accepts standard logic-level manual reset signals without external filtering |
Pinout & Package
MAX6354TYUK+T is housed in a lead(Pb)-free 5-pin SOT23 package (U5-1 outline, 21-0057), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and thermal pad omitted. Pin 1 is RST (active-low push-pull, VCC2-referenced), Pin 2 is GND, Pin 3 is MR, Pin 4 is VCC2, and Pin 5 is VCC1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low reset output | Push-pull driver referenced to VCC2; sinks 1.2mA at ≤0.3V or sources 350µA at ≥0.8×VCC2; no external pull-up required |
| 2 - GND | Ground reference | Common return path for both supply monitors and reset logic; must be low-impedance connection to system ground plane |
| 3 - MR | Manual reset input | Debounced active-low input; forces RST low while asserted and holds reset for timeout after release; VIH = 2.3V min (for L/M suffixes) |
| 4 - VCC2 | Secondary supply input | Monitored rail and power source; defines RST output voltage swing; must remain ≥1.0V for valid reset assertion |
| 5 - VCC1 | Primary supply input | Monitored rail and alternate power source; defines internal bias; must remain ≥1.0V for valid reset assertion |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously tracks VCC1 (3.08V) and VCC2 (2.19V); reset triggers if either drops below its threshold - critical for asymmetric supply systems |
| VCC2-referenced push-pull RST | Eliminates external pull-up resistor and ensures clean, rail-to-rail reset signaling compatible with 2.2V I/O domains |
| Guaranteed RESET validity to 1.0V | Ensures functional reset assertion even during deep brownout conditions where VCC1 or VCC2 collapses to 1.0V |
| 20µA ultra-low quiescent current | Enables use in always-on subsystems and battery-powered devices with multi-year standby life |
| 100ms minimum reset pulse width | Meets or exceeds most microprocessor tRST requirements for reliable boot sequence initiation |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
|
Use Scenario: Dual-rail 3.3V/2.2V power domain in programmable logic controller CPU module with EEPROM and real-time clock. IC Role / Device Role / Timing Role: Supervises both rails and asserts reset to halt CPU execution until stable power is confirmed. Use Value: Prevents firmware corruption during partial power loss by ensuring reset remains active until both supplies exceed 3.08V and 2.19V respectively. |
Use Scenario: Battery-powered ECG front-end with 3.0V analog supply and 2.2V digital core, operating in intermittent sleep mode. IC Role / Device Role / Timing Role: Provides deterministic reset on power-up and brownout, synchronized to VCC2 for digital logic integrity. Use Value: Enables safe wake-from-sleep transitions by guaranteeing ≥100ms reset hold time and valid output down to 1.0V on either rail. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: 12V-to-3.3V/2.2V DC-DC converted subsystem in body control unit exposed to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Monitors post-regulation rails and generates robust reset immune to short-duration supply dips. Use Value: Achieves >100ns glitch rejection and ignores transients <150ns at 100mV overdrive - preventing spurious resets during ignition events. |
Use Scenario: Dual-supply metrology SoC (3.3V analog front-end, 2.2V digital processor) deployed in utility-grade electricity meters. IC Role / Device Role / Timing Role: Ensures synchronized power-on reset and brownout recovery across analog and digital domains. Use Value: Maintains reset assertion during AC line sags that reduce 3.3V rail to 2.8V and 2.2V rail to 1.8V - preserving meter calibration state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6354TYUK-T | Same electrical specs and pinout, but leaded (Pb-containing) packaging instead of lead-free (+T) | Not suitable for RoHS-compliant production; requires Pb-based solder process | Select only if legacy assembly line mandates Pb-based materials and exemptions apply |
| TPS3808G30DBVR | Single-supply supervisor (3.0V threshold only); no VCC2 monitoring or VCC2-referenced output | Cannot replace MAX6354TYUK+T in dual-rail systems without redesigning power architecture | Consider only for cost-sensitive single-rail designs where second rail supervision is omitted |
Compared with MAX6354TYUK+T, the leaded MAX6354TYUK-T offers identical performance but violates modern environmental compliance standards, while the TPS3808G30DBVR lacks dual-supply capability and cannot monitor or assert reset relative to a secondary rail - making neither a drop-in replacement without board-level changes.
Availability
MAX6354TYUK+T is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, automotive body control modules, smart energy meters, and multivoltage embedded systems requiring stable component supply across extended temperature ranges and RoHS-compliant manufacturing.
Supply support for MAX6354TYUK+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 high-performance analog and mixed-signal ICs for industrial, communications, computing, and consumer applications.
The MAX6351–MAX6360 family delivers precision dual- and triple-voltage supervision for multirail systems, targeting reliability-critical applications where simultaneous monitoring of asymmetric supplies is essential.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6354TYUK+T?
The MAX6354TYUK+T has a factory-set VCC1 threshold of 3.08V (±0.05V at +25°C, 3.00V to 3.15V over -40°C to +85°C) and a VCC2 threshold of 2.19V (±0.03V at +25°C, 2.13V to 2.25V over temperature). These values are defined by the "TY" suffix per the Voltage Threshold Levels table and are laser-trimmed during production for precision.
Does the MAX6354TYUK+T include a watchdog timer function?
No, the MAX6354TYUK+T does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6358, MAX6359, and MAX6360 variants in the family. The MAX6354TYUK+T provides only dual-voltage monitoring, manual reset input, and a single VCC2-referenced reset output.
What is the package type and pin configuration of the MAX6354TYUK+T?
The MAX6354TYUK+T uses a 5-pin SOT23 package (U5-1 outline, 21-0057), with pin 1 = RST (active-low push-pull, VCC2-referenced), pin 2 = GND, pin 3 = MR, pin 4 = VCC2, and pin 5 = VCC1. It is lead(Pb)-free, indicated by the "+T" suffix.
Can the MAX6354TYUK+T operate with supply voltages below 2.0V?
Yes - the MAX6354TYUK+T guarantees valid reset operation as long as either VCC1 or VCC2 remains ≥1.0V. Its specified operating range is VCC1/VCC2 = +1.2V to +5.5V at -40°C to +85°C, and the reset output remains functional down to 1.0V, enabling use in deep-brownout scenarios.
How does the reset output of the MAX6354TYUK+T differ from open-drain supervisors?
The MAX6354TYUK+T features an active-low push-pull reset output referenced to VCC2, meaning it actively drives low (≤0.3V at 1.2mA) and high (≥0.8×VCC2 at 350µA). Unlike open-drain types, it requires no external pull-up resistor and delivers rail-aligned logic levels compatible with 2.2V I/O interfaces.
MAX6354TYUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.19V, 3.08V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6354TYUK+T FAQ
1.How can I place an order for MAX6354TYUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6354TYUK+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 MAX6354TYUK+T reliable?
The price and inventory of MAX6354TYUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6354TYUK+T is usually 5 days.
3.What payment methods are accepted for MAX6354TYUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6354TYUK+T transactions.
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4.How is shipping managed for MAX6354TYUK+T?
MAX6354TYUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6354TYUK+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 MAX6354TYUK+T?
For technical support, including MAX6354TYUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6354TYUK+T requirements.
6.How does Aetrix verify that MAX6354TYUK+T is sourced from the original manufacturer or authorized distributors?
All MAX6354TYUK+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 MAX6354TYUK+T meets industry standards.
7.What is the process for return or replacement of MAX6354TYUK+T?
All MAX6354TYUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6354TYUK+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 MAX6354TYUK+T part is unused and in its original packaging.
Return procedure for MAX6354TYUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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