My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6353RVUK+T
- Part No.:
- MAX6353RVUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6353RVUK+T.pdf
- Description:
- IC SUPERVISOR MPU SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,072
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6353RVUK+T from Maxim Integrated is a dual-voltage microprocessor supervisory circuit with active-low push-pull reset output referenced to VCC1, precision factory-set thresholds of 2.63V (VCC1) and 1.58V (VCC2), 20µA supply current, and operation over -40°C to +85°C - used in multivoltage embedded systems to ensure reliable power-on and brownout reset sequencing.
For engineers reviewing the MAX6353RVUK+T datasheet, MAX6353RVUK+T pinout, MAX6353RVUK+T application, or MAX6353RVUK+T equivalent, key selection criteria include dual-supply monitoring capability, guaranteed RESET validity down to VCC1 = 1V or VCC2 = 1V, debounced manual-reset input, and compatibility with 5-pin SOT23 PCB layouts.
Technical Context
The MAX6353RVUK+T monitors two independent supply rails (VCC1 and VCC2) and asserts its single active-low push-pull RST output when either falls below its respective threshold (2.63V/1.58V). Reset remains valid as long as at least one supply exceeds +1.0V, enabling robust operation during asymmetric rail collapse.
It features a debounced TTL/CMOS-compatible manual-reset input (MR), 100ms minimum power-on-reset pulse width, and no watchdog or third-voltage monitor - distinguishing it from MAX6359/MAX6355 variants. The device uses BiCMOS process and requires no external components for basic dual-rail supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 Threshold | 2.63V ±0.05V (factory-trimmed; ensures precise 2.63V supply monitoring) |
| VCC2 Threshold | 1.58V ±0.03V (factory-trimmed; enables accurate low-voltage rail supervision) |
| Supply Current | 20µA typical (enables ultra-low-power operation in battery-backed systems) |
| Reset Pulse Width | 100–280ms (guaranteed minimum 100ms ensures reliable µP initialization) |
| Operating Temp | -40°C to +85°C (fully specified for industrial-grade embedded applications) |
| Reset Output Type | Active-low push-pull referenced to VCC1 (drives directly without pull-up; sinks 1.2mA @ VCC1 ≥ 2.7V) |
| MR Input Compatibility | TTL/CMOS-debounced (accepts standard logic-level manual reset signals) |
Pinout & Package
MAX6353RVUK+T is housed in a 5-pin SOT23 package (U5-1 outline, land pattern 90-0174), RoHS-compliant, with 0.95mm pitch and 2.9mm × 1.6mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RST | Active-low push-pull reset output referenced to VCC1; drives low during fault or MR assertion |
| 2 | GND | Ground reference for all internal circuitry and reset output |
| 3 | MR | Debounced manual-reset input; pulled high internally (~63.5kΩ); assert low to force reset |
| 4 | VCC2 | Secondary supply input; powers device when > VCC1 and monitored at 1.58V threshold |
| 5 | VCC1 | Primary supply input; powers device when > VCC2 and monitored at 2.63V threshold |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent voltage monitoring | Simultaneously supervises VCC1 (2.63V) and VCC2 (1.58V) with separate trip points - eliminates need for two discrete supervisors |
| Guaranteed RESET validity to 1V | Output remains functional even if VCC1 or VCC2 drops to +1.0V - supports graceful shutdown in deep brownout |
| No external components required | Self-contained supervision with internal precision references and debouncing - reduces BOM count and layout area |
| Power-supply transient immunity | Rejects short negative-going transients on VCC1/VCC2 per published timing curves - prevents false resets |
| Small 5-pin SOT23 footprint | 2.9mm × 1.6mm surface-mount package - ideal for space-constrained portable and multivoltage systems |
Applications
| Computers | Controllers |
|---|---|
Use Scenario: Desktop motherboard with +3.3V and +1.8V core/logic rails. IC Role / Device Role / Timing Role: Dual-rail supervisor asserting unified reset signal to CPU and chipset upon any rail dropout. Use Value: Prevents boot failure due to mismatched rail sequencing; 100ms min pulse guarantees BIOS initialization completes. | Use Scenario: Industrial PLC with isolated +5V I/O and +2.5V FPGA core supplies. IC Role / Device Role / Timing Role: Monitors both rails and triggers system-wide reset if either falls below spec. Use Value: Enables deterministic recovery after power interruption; push-pull RST drives directly into FPGA reset pin without pull-up. |
| Portable/Battery-Powered Equipment | Multivoltage Systems |
Use Scenario: Medical handheld with Li-ion battery feeding +3.3V MCU and +1.2V sensor rail. IC Role / Device Role / Timing Role: Supervises main and auxiliary rails; asserts reset before brownout-induced data corruption. Use Value: 20µA quiescent current extends battery life; 1.58V VCC2 threshold matches low-voltage sensor domain. | Use Scenario: Telecom line card with +12V, +3.3V, and +1.5V distributed supplies. IC Role / Device Role / Timing Role: Dedicated MAX6353RVUK+T per subsystem (e.g., +3.3V/+1.5V pair) for localized supervision. Use Value: Eliminates cross-talk between domains; small SOT23 allows placement near each voltage source. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-voltage supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6353RVUK-T | Same electrical specs and pinout; leaded (Pb) version instead of lead-free (+T) | Identical functionality; differs only in RoHS compliance and soldering profile | Select for legacy assembly lines requiring Pb-based reflow |
| TPS3808G15DBVR | Single-supply supervisor (1.5V threshold only); no VCC2 monitoring; 3-pin SOT23 | Cannot replace dual-rail function; requires separate supervisor for second rail | Use only when monitoring one rail is sufficient and board space is extremely constrained |
Compared with MAX6353RVUK+T, the MAX6353RVUK-T offers identical performance with Pb-based termination, while TPS3808G15DBVR lacks dual-supply capability and cannot supervise both VCC1 and VCC2 simultaneously - making it unsuitable as a drop-in replacement but viable for simplified single-rail designs.
Availability
MAX6353RVUK+T is available at Aetrix Electronics and suitable for computers, controllers, and portable/battery-powered equipment requiring stable component supply, industrial temperature operation, and dual-voltage supervision with minimal footprint.
Supply support for MAX6353RVUK+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 precision analog and mixed-signal ICs for industrial, computing, and communications markets, with expertise in power management and reliability-critical functions.
The MAX6351–MAX6360 family delivers dual- and triple-voltage microprocessor supervision for multirail systems where coordinated reset timing, low quiescent current, and guaranteed operation down to 1V are essential design requirements.
FAQ
What is the reset output configuration of the MAX6353RVUK+T?
The MAX6353RVUK+T features a single active-low push-pull reset output (RST) referenced to VCC1. It drives low during power-on reset, brownout, or manual reset assertion, and returns high when both VCC1 and VCC2 exceed their thresholds. This eliminates the need for an external pull-up resistor and ensures fast, clean reset signaling to the microprocessor.
Does the MAX6353RVUK+T include a watchdog timer?
No, the MAX6353RVUK+T does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6358/MAX6359/MAX6360 variants in the same family. The MAX6353RVUK+T provides only dual-voltage monitoring and reset generation - confirmed by its pinout (no WDI pin) and absence of watchdog specifications in its electrical characteristics table.
What are the exact voltage thresholds monitored by the MAX6353RVUK+T?
The MAX6353RVUK+T monitors VCC1 at a precision factory-set threshold of 2.63V (±0.05V over temperature) and VCC2 at 1.58V (±0.03V over temperature). These values are encoded in the "RV" suffix per the Voltage Threshold Levels table and are fully guaranteed across the -40°C to +85°C operating range.
Can the MAX6353RVUK+T operate with supply voltages below 2.63V or 1.58V?
Yes - the MAX6353RVUK+T remains functional as long as either VCC1 or VCC2 is ≥ +1.0V, and its reset output is guaranteed valid down to that level. However, the device only asserts reset when VCC1 drops below 2.63V *or* VCC2 drops below 1.58V. Operation below those thresholds is intentional fault detection, not normal operation.
Is the MAX6353RVUK+T pin-compatible with other devices in the MAX6351–MAX6360 family?
The MAX6353RVUK+T shares the same 5-pin SOT23 package and pinout (RST, GND, MR, VCC2, VCC1) with MAX6352 and MAX6354, but differs electrically: MAX6352 has open-drain RST, and MAX6354's RST is referenced to VCC2. Therefore, direct substitution requires verification of reset output drive type and voltage reference - MAX6353RVUK+T is not a generic drop-in replacement across the family.
MAX6353RVUK+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:
- 1.58V, 2.63V
- 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
MAX6353RVUK+T FAQ
1.How can I place an order for MAX6353RVUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6353RVUK+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 MAX6353RVUK+T reliable?
The price and inventory of MAX6353RVUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6353RVUK+T is usually 5 days.
3.What payment methods are accepted for MAX6353RVUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6353RVUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6353RVUK+T?
MAX6353RVUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6353RVUK+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 MAX6353RVUK+T?
For technical support, including MAX6353RVUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6353RVUK+T requirements.
6.How does Aetrix verify that MAX6353RVUK+T is sourced from the original manufacturer or authorized distributors?
All MAX6353RVUK+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 MAX6353RVUK+T meets industry standards.
7.What is the process for return or replacement of MAX6353RVUK+T?
All MAX6353RVUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6353RVUK+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 MAX6353RVUK+T part is unused and in its original packaging.
Return procedure for MAX6353RVUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6353RVUK+T Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
