My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6314US30D4-T
- Part No.:
- MAX6314US30D4-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6314US30D4-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,454
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6314US30D4-T from Maxim Integrated is a low-power CMOS microprocessor supervisory circuit that monitors VCC supply voltage and asserts a bidirectional active-low RESET signal when VCC falls below 3.00V or when manual reset (MR) is asserted. It features a factory-trimmed 3.00V reset threshold, 1120ms minimum reset timeout period, ±1.8% threshold accuracy at +25°C, 5µA supply current, and SOT143 package - designed for reliable power-up/power-down sequencing in 68HC11-compatible embedded systems.
For engineers reviewing the MAX6314US30D4-T datasheet, MAX6314US30D4-T pinout, MAX6314US30D4-T application, or MAX6314US30D4-T equivalent, key selection considerations include its bidirectional RESET output architecture with integrated 4.7kΩ pullup + active P-channel pullup, immunity to short VCC transients, MR debounce capability, and compatibility with µPs requiring precise reset timing under brownout conditions.
Technical Context
The MAX6314US30D4-T implements a precision voltage-monitoring comparator with laser-trimmed internal resistive divider to set the 3.00V nominal reset threshold, supported by ±2.5% accuracy over –40°C to +85°C. Its reset timeout is fixed at ≥1120ms via on-chip RC timing, independent of external components.
The RESET output combines an N-channel pulldown, a 4.7kΩ passive pullup, and a P-channel active pullup enabled for 2µs after RESET release - enabling fast rise time (<350ns into 100pF) even with multiple devices on the reset bus. MR includes a 63kΩ internal pullup and rejects <100ns glitches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VTH Nominal | 3.00V - Factory-trimmed threshold ensures consistent power-fail detection across production units without calibration. |
| tRP Min | 1120ms - Guarantees sufficient reset assertion time for full µP initialization and peripheral stabilization after brownout recovery. |
| ICC | 5µA - Enables ultra-low-power operation in battery-backed or energy-constrained systems without compromising supervision integrity. |
| Reset Accuracy | ±1.8% at +25°C - Limits false resets due to threshold drift, critical for stable operation near supply rails. |
| VCC Range | 1.0V to 5.5V - Supports operation down to sub-1.8V logic domains while maintaining valid RESET assertion until VCC ≥ 1V. |
| MR Glitch Rejection | 100ns - Prevents spurious resets from EMI or switch bounce without external RC filtering. |
| RESET Rise Time | 333ns (CL = 100pF) - Meets tight timing windows (e.g., two E-cycles on 4MHz 68HC11) for bidirectional reset handshaking. |
Pinout & Package
SOT143 (4-pin, 1.3mm × 2.9mm, 0.95mm height) surface-mount package with exposed pad option; rated for –40°C to +85°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply and monitored voltage input | Primary power rail connection; internally divided to generate reset comparator reference - must be decoupled with 0.1µF capacitor. |
| MR | Manual reset input | Active-low asynchronous reset trigger; internally pulled up to VCC via 63kΩ resistor - requires no external components for basic pushbutton use. |
| RESET | Bidirectional active-low reset I/O | Combines N-channel sink, 4.7kΩ pullup, and P-channel active pullup - enables direct interface to 68HC11-style bidirectional reset pins without external resistors. |
| GND | Ground reference | Return path for all internal circuitry; must be connected to system ground plane with low-inductance layout to ensure noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional RESET output | Integrates 4.7kΩ pullup + 2µs active P-channel pullup to meet 68HC11 timing requirements (<500ns rise into 100pF load) without external components. |
| Factory-trimmed VTH | 3.00V ±1.8% at +25°C ensures drop-in replacement across production lots without recalibration or trimming. |
| 1120ms reset timeout | Fixed minimum duration eliminates need for external timing capacitors - simplifies BOM and improves long-term reliability. |
| 5µA quiescent current | Enables continuous supervision in always-on battery-powered instruments without measurable impact on runtime. |
| MR debounce & glitch rejection | Internal 63kΩ pullup and 100ns noise immunity eliminate need for external RC filters or Schmitt triggers on manual reset lines. |
Applications
| Industrial Controllers | Portable Medical Devices |
|---|---|
|
Use Scenario: PLC modules operating in harsh environments with fluctuating 3.3V or 5V supplies subject to brownouts and EMI. IC Role / Device Role / Timing Role: Monitors VCC and asserts RESET to prevent corrupted firmware execution during undervoltage events; 1120ms timeout ensures full FPGA configuration and sensor initialization. Use Value: Eliminates external reset ICs and pullup resistors, reducing board area and component count while guaranteeing deterministic reset behavior under transient stress. |
Use Scenario: Handheld glucose meters powered by single-cell Li-ion batteries discharging from 4.2V to 3.0V. IC Role / Device Role / Timing Role: Detects end-of-life battery voltage (3.00V threshold) and holds µC in reset until replacement - prevents data loss or erroneous readings during low-VCC operation. Use Value: 5µA supply current extends battery life beyond 5 years in standby; ±2.5% tempco ensures accurate low-battery detection across operating temperature range. |
| Automotive Body Control Modules | Smart Energy Meters |
|
Use Scenario: 12V-to-3.3V converted systems experiencing load-dump transients and cold-crank voltage sags. IC Role / Device Role / Timing Role: Supervises post-regulator 3.3V rail; ignores <100ns VCC glitches but asserts RESET during sustained sags below 3.00V for ≥1120ms. Use Value: Immunity to short transients avoids nuisance resets during ignition; bidirectional RESET supports diagnostic reset handshaking with automotive µCs. |
Use Scenario: Revenue-grade electricity meters requiring tamper-proof power monitoring and secure boot validation. IC Role / Device Role / Timing Role: Provides hardware-enforced reset during AC power loss or DC supply collapse; 1120ms timeout allows secure crypto engine shutdown and nonvolatile memory write completion. Use Value: Factory-trimmed 3.00V threshold ensures compliance with IEC 62053-21 voltage-fail thresholds without field calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6315US30D4-T | Open-drain RESET output (no internal pullup), identical VTH (3.00V) and tRP (1120ms). | Requires external 4.7kΩ pullup resistor; not compatible with bidirectional reset µPs like 68HC11. | Select when interfacing with standard open-drain reset inputs or when active pullup is unnecessary. |
| TPS3808G30DBVR | Push-pull RESET output, 3.0V threshold, 1200ms timeout, 1.6µA ICC, SOT-23-5 package. | Lacks MR input and bidirectional capability; optimized for ultra-low-power applications where MR is unused. | Choose for lowest quiescent current in space-constrained designs where manual reset is omitted. |
Compared with MAX6314US30D4-T, MAX6315US30D4-T requires external pullup and cannot drive bidirectional reset pins, while TPS3808G30DBVR offers lower current but omits MR and bidirectional functionality - making MAX6314US30D4-T uniquely suited for legacy 68HC11-based systems requiring integrated MR and active pullup.
Availability
MAX6314US30D4-T is available at Aetrix Electronics and suitable for industrial controllers, portable medical devices, automotive body control modules, and smart energy meters requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6314US30D4-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 consumer applications.
The MAX6314 family delivers precision, low-power µP supervision with factory-trimmed thresholds and fixed timeouts - engineered specifically for cost-sensitive, space-constrained embedded systems needing reliable power monitoring without external components.
FAQ
What is the exact reset threshold voltage for MAX6314US30D4-T?
The MAX6314US30D4-T has a factory-trimmed nominal reset threshold of 3.00V, with ±1.8% accuracy at +25°C and ±2.5% over the full –40°C to +85°C temperature range. This value is laser-trimmed during manufacturing and does not require external adjustment - confirmed in the Electrical Characteristics table of the official datasheet.
Does MAX6314US30D4-T support bidirectional reset communication with microcontrollers?
Yes, the MAX6314US30D4-T features a bidirectional RESET output with integrated 4.7kΩ pullup and active P-channel pullup, explicitly designed to interface with µPs like the Motorola 68HC11 that use bidirectional reset I/O pins. This architecture enables reset source identification (external vs. internal) without external components.
What is the minimum reset timeout period specified for MAX6314US30D4-T?
The MAX6314US30D4-T provides a minimum reset timeout period of 1120ms, as indicated by the "D4" suffix in the part number. This fixed duration is internally generated and guaranteed across temperature and supply voltage variations - eliminating the need for external timing capacitors.
Can MAX6314US30D4-T operate with supply voltages below 3.0V?
Yes, the MAX6314US30D4-T operates from VCC = 1.0V to 5.5V. While it asserts RESET when VCC falls below 3.00V, it continues functioning down to 1.0V - and RESET remains a valid logic low until VCC drops below 1.0V, at which point the output becomes high-impedance.
Is a pullup resistor required on the MR pin for MAX6314US30D4-T?
No, the MR pin of MAX6314US30D4-T includes an internal 63kΩ pullup resistor, allowing it to be left unconnected if manual reset is unused. For active manual reset, connect a normally open momentary switch between MR and GND - no external pullup or debounce circuitry is needed under typical conditions.
MAX6314US30D4-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3V
- Output:
- Bidirectional
- Reset:
- Active Low
- Reset Timeout:
- 1.12s Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143-4
MAX6314US30D4-T FAQ
1.How can I place an order for MAX6314US30D4-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6314US30D4-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 MAX6314US30D4-T reliable?
The price and inventory of MAX6314US30D4-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6314US30D4-T is usually 5 days.
3.What payment methods are accepted for MAX6314US30D4-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6314US30D4-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6314US30D4-T?
MAX6314US30D4-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6314US30D4-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 MAX6314US30D4-T?
For technical support, including MAX6314US30D4-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6314US30D4-T requirements.
6.How does Aetrix verify that MAX6314US30D4-T is sourced from the original manufacturer or authorized distributors?
All MAX6314US30D4-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 MAX6314US30D4-T meets industry standards.
7.What is the process for return or replacement of MAX6314US30D4-T?
All MAX6314US30D4-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6314US30D4-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 MAX6314US30D4-T part is unused and in its original packaging.
Return procedure for MAX6314US30D4-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6314US30D4-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…
