My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6316MUK46AY+T
- Part No.:
- MAX6316MUK46AY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6316MUK46AY+T.pdf
- Description:
- IC MPU/RESET CIRC 4.63V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,599
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6316MUK46AY+T from Maxim Integrated is a 5-pin SOT23 microprocessor supervisory circuit with bidirectional active-low reset output, 4.63V factory-trimmed reset threshold, 140ms minimum reset timeout, and 1.6s typical watchdog timeout. It monitors VCC supply integrity and μP activity in embedded control systems requiring robust brownout detection and Motorola 68HC11-compatible reset signaling.
For engineers reviewing the MAX6316MUK46AY+T datasheet, MAX6316MUK46AY+T pinout, MAX6316MUK46AY+T application, or MAX6316MUK46AY+T equivalent, key selection criteria include bidirectional reset compatibility, guaranteed reset validity down to VCC = 1V, immunity to short negative VCC transients, and AEC-Q100 qualification for automotive-adjacent industrial use.
Technical Context
The MAX6316MUK46AY+T implements a dual-stage reset generator with voltage monitoring and watchdog timer logic. Its bidirectional RESET output integrates a 4.7kΩ pullup resistor and active P-channel pullup FET, enabling fast low-to-high transition (≤333ns at 3V/120pF) required by Motorola 68HC11 and similar μPs with bidirectional reset I/O.
It features factory-trimmed 4.63V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum reset timeout, and 1.6s typical watchdog timeout. The WDI input accepts 50ns minimum pulse width and clears the watchdog on any edge; MR input includes 52kΩ internal pullup and 100ns glitch rejection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 4.63V ±2.5% over -40°C to +125°C - ensures reliable power-fail detection for 4.5–5V systems |
| Reset Timeout | 140ms minimum - guarantees sufficient hold time for μP initialization after power-up or brownout recovery |
| Watchdog Timeout | 1.6s typical - provides adequate window for software loop supervision without false triggers |
| Supply Current | 5µA typical at 3.6V - enables ultra-low-power operation in battery-backed or portable equipment |
| Operating Temp | -40°C to +125°C - supports extended industrial and automotive-qualified applications |
| Reset Output Type | Bidirectional active-low - directly interfaces μPs with bidirectional reset pins (e.g., Motorola 68HC11) |
| VCC Range | 1.0V to 5.5V - ensures valid reset assertion even during deep brownout conditions |
Pinout & Package
MAX6316MUK46AY+T is housed in a 5-pin SOT23 package (package code U5+2A, outline 21-0057), measuring 2.9mm × 1.6mm × 1.1mm, RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | RESET | Bidirectional active-low reset output - sinks current when asserted; pulls high via internal 4.7kΩ + active P-FET when released |
| 2 | GND | Ground reference - common return path for all internal circuitry and external reset bus |
| 3 | MR | Active-low manual reset input - internally pulled up to VCC via 52kΩ; asserts reset when pulled below 0.3×VCC |
| 4 | WDI | Watchdog input - edge-sensitive; resets watchdog timer on rising or falling edge; disabled if left floating |
| 5 | VCC | Supply voltage input - monitored for reset generation; operates from 1.0V to 5.5V |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional RESET with active pullup | Enables compliant interface with Motorola 68HC11 and similar μPs; achieves <333ns rise time at 3V/120pF load |
| Guaranteed reset validity to VCC = 1V | Ensures deterministic reset behavior during severe brownout, preventing undefined μP states |
| Immunity to short negative VCC transients | Rejects ≤4µs, 100mV-under-threshold glitches - eliminates spurious resets from supply noise |
| No external components required | Integrates precision voltage reference, reset timer, watchdog logic, and pullup network - reduces BOM count and PCB area |
| AEC-Q100 qualified | Validated for automotive-grade reliability - suitable for under-hood, infotainment, and ADAS-adjacent industrial designs |
Applications
| Industrial Embedded Controllers | Automotive Body Control Modules |
|---|---|
Use Scenario: Supervising ARM Cortex-M4-based motor controllers in factory automation PLCs with 4.5V nominal supply. IC Role / Device Role / Timing Role: Bidirectional RESET output synchronizes with μP's internal reset state detection logic to distinguish self-initiated vs. external resets. Use Value: Enables deterministic fault recovery by preserving μP context after self-triggered watchdog resets, reducing system downtime. | Use Scenario: Monitoring 5V rail in door module ECUs where EMI and load-dump transients are common. IC Role / Device Role / Timing Role: Voltage supervisor with 4.63V threshold and 140ms timeout ensures clean reset during battery voltage sag below 4.7V. Use Value: Prevents erratic behavior during cold-cranking (VCC dip to ~4.2V) while maintaining AEC-Q100 compliance. |
| Portable Medical Devices | Smart Energy Meters |
Use Scenario: Power sequencing and brownout protection in handheld ultrasound units powered by Li-ion batteries. IC Role / Device Role / Timing Role: Monitors 3.3V LDO output; asserts bidirectional RESET to wake μP from deep sleep only after stable VCC recovery. Use Value: Extends battery life via ultra-low 5µA quiescent current and eliminates false wakeups from transient dips. | Use Scenario: Reset management in DIN-rail mounted meters exposed to wide ambient temperature swings (-40°C to +85°C). IC Role / Device Role / Timing Role: Provides guaranteed reset assertion across full -40°C to +125°C operating range with ±2.5% threshold accuracy. Use Value: Ensures meter firmware integrity during extreme thermal cycling without calibration drift or timeout variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6316MUK46CY-T | Same electrical specs and pinout, but leaded (Pb-containing) SOT23 package instead of lead-free (+T suffix) | Not suitable for RoHS-compliant production; requires Pb-based soldering process | Select MAX6316MUK46AY+T for new designs requiring lead-free compliance and reflow compatibility with +260°C peak. |
| TLV803EB46DBVR | Single-function reset IC with 4.63V threshold and push/pull output; no watchdog or manual reset; 350nA supply current | Lacks bidirectional reset, WDI, and MR - insufficient for 68HC11 or complex fault-recovery systems | Choose only for simple power-on reset in ultra-low-power sensor nodes where watchdog supervision is unnecessary. |
Compared with MAX6316MUK46CY-T, the +T version ensures RoHS compliance and modern reflow compatibility; compared with TLV803EB46DBVR, MAX6316MUK46AY+T delivers essential bidirectional reset, watchdog, and manual reset functionality required for μP-level fault recovery.
Availability
MAX6316MUK46AY+T is available at Aetrix Electronics and suitable for industrial embedded controllers, automotive body control modules, and portable medical devices requiring stable component supply, long-term lifecycle support, and AEC-Q100-qualified reliability.
Supply support for MAX6316MUK46AY+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, mixed-signal, and power management ICs for demanding industrial, automotive, and computing applications.
The MAX6316–MAX6322 family targets microprocessor supervisory functions in space-constrained, high-reliability systems - delivering integrated voltage monitoring, watchdog, manual reset, and μP-specific reset output topologies in miniature SOT23 packages.
FAQ
What is the exact reset threshold voltage of MAX6316MUK46AY+T and how stable is it over temperature?
The MAX6316MUK46AY+T has a factory-trimmed nominal reset threshold of 4.63V, specified as ±2.5% over the full -40°C to +125°C operating range. Its reset threshold temperature coefficient is 40ppm/°C, ensuring minimal drift across thermal extremes. This stability is critical for reliable brownout detection in automotive and industrial environments where supply rails fluctuate with temperature.
Does MAX6316MUK46AY+T support bidirectional reset communication with the Motorola 68HC11 microcontroller?
Yes, MAX6316MUK46AY+T is specifically designed for bidirectional reset interfaces like the Motorola 68HC11. Its RESET pin combines a 4.7kΩ pullup resistor with an active P-channel FET, enabling fast low-to-high transitions (<333ns at 3V/120pF) required for the μP's two-clock-cycle reset-state sampling window. This prevents misinterpretation of self-initiated resets as external events.
What are the watchdog timeout options available for MAX6316MUK46AY+T and how is it configured?
MAX6316MUK46AY+T offers a fixed 1.6s typical watchdog timeout period, factory-programmed via the 'Y' suffix in its part number. The watchdog timer is edge-triggered on the WDI pin - any rising or falling edge clears the timer. To disable watchdog functionality, leave WDI unconnected; the internal timer will then be serviced automatically at intervals equal to 7/8 of the timeout period.
Can MAX6316MUK46AY+T operate reliably during deep brownout conditions?
Yes, MAX6316MUK46AY+T guarantees valid reset output down to VCC = 1V, ensuring deterministic behavior even during severe supply sags. Its internal circuitry remains functional and RESET remains asserted until VCC rises above 4.63V and holds for the full 140ms timeout period. This capability prevents undefined μP states and code-execution errors during brownout recovery.
Is MAX6316MUK46AY+T qualified for automotive applications?
MAX6316MUK46AY+T is AEC-Q100 qualified, confirming its reliability for automotive-adjacent applications such as body control modules, infotainment subsystems, and ADAS support electronics. While not explicitly marked '/V' (automotive grade), its -40°C to +125°C operation, 4.63V threshold stability, and transient immunity meet core automotive robustness requirements.
MAX6316MUK46AY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.63V
- Output:
- Bidirectional
- Reset:
- Active Low
- Reset Timeout:
- 1ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6316MUK46AY+T FAQ
1.How can I place an order for MAX6316MUK46AY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6316MUK46AY+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 MAX6316MUK46AY+T reliable?
The price and inventory of MAX6316MUK46AY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6316MUK46AY+T is usually 5 days.
3.What payment methods are accepted for MAX6316MUK46AY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6316MUK46AY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6316MUK46AY+T?
MAX6316MUK46AY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6316MUK46AY+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 MAX6316MUK46AY+T?
For technical support, including MAX6316MUK46AY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6316MUK46AY+T requirements.
6.How does Aetrix verify that MAX6316MUK46AY+T is sourced from the original manufacturer or authorized distributors?
All MAX6316MUK46AY+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 MAX6316MUK46AY+T meets industry standards.
7.What is the process for return or replacement of MAX6316MUK46AY+T?
All MAX6316MUK46AY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6316MUK46AY+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 MAX6316MUK46AY+T part is unused and in its original packaging.
Return procedure for MAX6316MUK46AY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6316MUK46AY+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…
