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Analog Devices Inc./Maxim Integrated MAX6354SYUK+T
- Part No.:
- MAX6354SYUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6354SYUK+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,088
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Product details
Overview
The MAX6354SYUK+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit with active-low push-pull reset output referenced to VCC2, factory-set VCC1 threshold of 2.93V and VCC2 threshold of 2.19V, 20µA supply current, and guaranteed operation from -40°C to +85°C - used in multivoltage embedded systems to ensure reliable power-on and brownout reset sequencing.
For engineers reviewing the MAX6354SYUK+T datasheet, MAX6354SYUK+T pinout, MAX6354SYUK+T application, or MAX6354SYUK+T equivalent, key selection criteria include dual-supply monitoring tolerance, VCC2-referenced reset assertion, manual-reset debouncing, supply-current efficiency, and SOT23-5 footprint compatibility for space-constrained designs.
Technical Context
The MAX6354SYUK+T monitors two independent supply rails (VCC1 and VCC2), asserting its single active-low push-pull RST output when either falls below its precision factory-trimmed threshold (2.93V for VCC1, 2.19V for VCC2). Reset remains valid as long as at least one supply stays above +1.0V, enabling robust low-voltage operation during brownout conditions.
It features a debounced TTL/CMOS-compatible manual-reset input (MR) and supports no external components in dual-voltage systems. Unlike watchdog-equipped variants (e.g., MAX6359/MAX6360), the MAX6354SYUK+T excludes watchdog timer functionality - confirmed by device family mapping and pinout documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.93V ±0.05V at +25°C; ensures precise detection of +2.93V rail collapse before system instability |
| VCC2 Threshold | 2.19V ±0.03V at +25°C; enables accurate supervision of lower-voltage auxiliary rails like +2.2V I/O domains |
| Supply Current | 20µA typical; minimizes quiescent load on battery-backed or energy-sensitive supplies |
| Reset Pulse Width | 100ms minimum; guarantees sufficient duration for full microprocessor initialization and state clearing |
| Operating Temp | -40°C to +85°C; validated across industrial temperature range without derating |
| Reset Output Type | Active-low push-pull referenced to VCC2; drives logic-low directly without external pull-up, reducing BOM count |
| Reset Validity | Guaranteed down to VCC2 = +1.0V; maintains deterministic reset behavior during deep brownout |
Pinout & Package
MAX6354SYUK+T is housed in a lead(Pb)-free 5-pin SOT23 package (package code U5-1), footprint-compatible with standard SOT23-5 land patterns (land pattern no. 90-0174), with thermal pad omitted and rated for 571mW at +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RST | Active-low reset output | Push-pull driver referenced to VCC2; sinks ≥1.2mA at VCC2 ≥2.7V, VOH ≥0.8×VCC2 for _Y versions |
| 2 - GND | Ground reference | Common return path for internal comparators, reset generator, and MR input; must be low-impedance |
| 3 - MR | Manual-reset input | Debounced active-low input; forces RST low while asserted and holds reset for timeout after release |
| 4 - VCC2 | Secondary supply input | Primary power source and monitored rail; powers internal circuitry when VCC2 > VCC1, sets RST reference voltage |
| 5 - VCC1 | Primary supply input | Monitored rail only; does not power device when VCC2 is present; trip point = 2.93V |
Key Features
| Feature | Design Value |
|---|---|
| Dual-voltage monitoring | Simultaneously supervises VCC1 (2.93V) and VCC2 (2.19V) with independent thresholds - eliminates need for two discrete supervisors |
| VCC2-referenced RST | Reset output swings rail-to-rail relative to VCC2, ensuring clean logic-level compatibility with VCC2-domain peripherals |
| Low-power operation | 20µA supply current enables use in always-on subsystems without compromising battery life or thermal budget |
| 100ms min reset pulse | Guaranteed minimum duration prevents premature release of microprocessor reset, avoiding boot failures |
| Debounced MR input | Hardware-filtered manual reset rejects <100ns glitches, eliminating need for external RC filtering or firmware debounce |
Applications
| Industrial PLC Controllers | Portable Medical Monitors |
|---|---|
Use Scenario: Supervising dual-rail power architecture (e.g., +3.3V core and +2.2V I/O) in programmable logic controllers exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Dual-voltage supervisor providing synchronized, VCC2-referenced reset signal to ARM Cortex-M7 MCU and FPGA configuration logic. Use Value: Ensures deterministic startup and brownout recovery across -40°C to +85°C, eliminating race conditions between core and interface power domains. | Use Scenario: Power integrity monitoring in handheld ECG devices powered by single-cell Li-ion with buck-boost DC/DC generating +3.0V and +2.2V rails. IC Role / Device Role / Timing Role: Fault-detection IC asserting reset when either rail drops below threshold, preventing corrupted sensor data acquisition or flash writes. Use Value: 20µA quiescent current extends battery runtime; 100ms reset pulse guarantees full ADC and display controller initialization before sampling begins. |
| Multivoltage IoT Edge Nodes | Intelligent Power Meters |
Use Scenario: Compact wireless sensor node integrating LoRa transceiver (+3.3V), ultra-low-power MCU (+2.2V), and analog front-end (+2.19V). IC Role / Device Role / Timing Role: Single-chip dual-supply monitor delivering VCC2-synchronized reset to coordinate wake-up timing across heterogeneous voltage domains. Use Value: Eliminates external pull-ups and discrete reset generators; SOT23-5 footprint saves PCB area critical for miniaturized edge hardware. | Use Scenario: Revenue-grade electricity meter requiring fail-safe reset during AC line sags affecting auxiliary +2.93V and +2.19V metering rails. IC Role / Device Role / Timing Role: Precision voltage supervisor triggering hardware reset before metrology ADC or RTC enters undefined state during undervoltage. Use Value: Factory-trimmed 2.93V/2.19V thresholds match common metering rail specifications; guaranteed reset validity to VCC2 = +1.0V covers worst-case sag profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6353SYUK+T | Identical pinout and thresholds, but RST output referenced to VCC1 instead of VCC2 | Suitable when reset must track primary supply domain rather than secondary rail | Select MAX6353SYUK+T if system reset logic is tied to VCC1 domain; otherwise MAX6354SYUK+T ensures VCC2-domain compatibility |
| TPS3808G33DBVR | Single-supply supervisor (3.3V threshold only); no VCC2 monitoring or dual-threshold capability | Requires additional supervisor for second rail; increases component count and layout complexity | Choose only if supervising a single rail; MAX6354SYUK+T provides integrated dual-rail monitoring unavailable in TPS3808G33DBVR |
Compared with MAX6353SYUK+T, the MAX6354SYUK+T delivers reset signaling referenced to the lower-voltage rail - critical for interfacing with VCC2-synchronous peripherals. Against TPS3808G33DBVR, it uniquely integrates two independent thresholds in one SOT23-5 package, reducing board area and BOM cost in multivoltage systems.
Availability
MAX6354SYUK+T is available at Aetrix Electronics and suitable for industrial PLC controllers, portable medical monitors, multivoltage IoT edge nodes, intelligent power meters, and battery-powered instrumentation requiring stable component supply across extended temperature ranges.
Supply support for MAX6354SYUK+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
The MAX6351–MAX6360 product line delivers precision dual- and triple-voltage microprocessor supervisors optimized for reliability-critical embedded systems where coordinated power-rail monitoring and deterministic reset timing are essential.
FAQ
What is the exact reset threshold voltage for VCC1 and VCC2 on the MAX6354SYUK+T?
The MAX6354SYUK+T has a factory-set VCC1 threshold of 2.93V (±0.05V at +25°C) and a VCC2 threshold of 2.19V (±0.03V at +25°C), as defined by the "SY" suffix in the Voltage Threshold Levels table. These values are precision-trimmed and guaranteed over the full -40°C to +85°C operating range, with tempco of 20ppm/°C.
Does the MAX6354SYUK+T include a watchdog timer function?
No, the MAX6354SYUK+T does not include a watchdog timer. Watchdog functionality is exclusive to MAX6358/MAX6359/MAX6360 variants, as confirmed by the Selector Guide and Pin Configurations section. The MAX6354SYUK+T provides only dual-voltage monitoring and manual reset, with no WDI pin or associated timeout circuitry.
What is the output type and drive capability of the RST pin on the MAX6354SYUK+T?
The RST pin on the MAX6354SYUK+T is an active-low push-pull output referenced to VCC2. It sinks ≥1.2mA when VCC2 ≥2.7V (VOL ≤0.3V), and sources current with VOH ≥0.8×VCC2 for _Y versions at ISOURCE = 500µA - enabling direct interface with VCC2-domain logic without external pull-up resistors.
Can the MAX6354SYUK+T operate reliably when one supply drops below 1.0V?
Yes - the MAX6354SYUK+T guarantees valid RST output as long as either VCC1 or VCC2 remains above +1.0V, per Absolute Maximum Ratings and Electrical Characteristics. This ensures deterministic reset assertion during deep brownout events where one rail collapses fully while the other sustains minimal operation.
Is the MAX6354SYUK+T pin-compatible with other devices in the MAX6351–MAX6360 family?
The MAX6354SYUK+T uses the 5-pin SOT23 package and shares identical pinout with MAX6352/MAX6353/MAX6354 variants (RST, GND, MR, VCC2, VCC1). However, it is not functionally interchangeable with 6-pin variants (e.g., MAX6355–MAX6360) due to missing pins (RSTIN, WDI, or second RST) and differing internal architectures.
MAX6354SYUK+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:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.19V, 2.93V
- 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
MAX6354SYUK+T FAQ
1.How can I place an order for MAX6354SYUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6354SYUK+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 MAX6354SYUK+T reliable?
The price and inventory of MAX6354SYUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6354SYUK+T is usually 5 days.
3.What payment methods are accepted for MAX6354SYUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6354SYUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6354SYUK+T?
MAX6354SYUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6354SYUK+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 MAX6354SYUK+T?
For technical support, including MAX6354SYUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6354SYUK+T requirements.
6.How does Aetrix verify that MAX6354SYUK+T is sourced from the original manufacturer or authorized distributors?
All MAX6354SYUK+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 MAX6354SYUK+T meets industry standards.
7.What is the process for return or replacement of MAX6354SYUK+T?
All MAX6354SYUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6354SYUK+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 MAX6354SYUK+T part is unused and in its original packaging.
Return procedure for MAX6354SYUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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