My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX810TEXR+
- Part No.:
- MAX810TEXR+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX810TEXR+.pdf
- Description:
- MAX810 3-PIN MICROPROCESSOR RESE
- Quantity:
- Payment:
- Shipping:
Inventory:6,165
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX810TEXR+ from Maxim Integrated is a 3-pin microprocessor supervisory circuit with push-pull active-high RESET output, designed to monitor +3.0V power supplies and assert reset during brownout or power-up conditions. It features a precision 3.08V reset threshold (±1.5% over temperature), 140ms minimum reset timeout, 12µA supply current at +25°C, guaranteed operation down to VCC = +1V, and immunity to fast VCC transients. It is used in portable battery-powered equipment requiring reliable, low-power power-on reset functionality.
For engineers reviewing the MAX810TEXR+ datasheet, MAX810TEXR+ pinout, MAX810TEXR+ application, or MAX810TEXR+ equivalent, this page delivers verified technical context, exact pin-level design meaning, real-world use scenarios for µP reset supervision, and validated alternative options - all grounded in Maxim's official specifications for the EXR-grade SC70-3 package variant.
Technical Context
The MAX810TEXR+ implements a precision voltage comparator with internal hysteresis to detect when VCC falls below its 3.08V threshold, triggering an active-high RESET signal that remains asserted for ≥140ms after VCC recovers above threshold. Its reset comparator ignores transients ≤20µs wide at 100mV overdrive, ensuring noise immunity in noisy power environments.
This device operates across -40°C to +125°C in SC70-3 packaging, draws only 12µA typical supply current, and maintains valid RESET logic state down to VCC = +1V - enabling robust reset assertion even during deep brownout. Unlike open-drain variants (e.g., MAX803), the MAX810TEXR+ uses a push-pull output stage, eliminating external pull-up requirements for active-high interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 3.08V ±1.5% over -40°C to +125°C - ensures deterministic reset activation at precisely 3.0V nominal supply systems. |
| Reset Timeout | ≥140ms after VCC rise - guarantees sufficient hold time for µP initialization before release. |
| Supply Current | 12µA typical at +25°C - enables multi-year battery life in portable instrumentation and IoT edge nodes. |
| VCC Operating Range | +1.2V to +5.5V - supports operation during deep brownout while maintaining valid RESET output. |
| Output Type | Push-pull active-high - drives RESET high without external components; compatible with µP reset inputs requiring active-high assertion. |
| Transient Immunity | Rejects ≤20µs negative VCC glitches at 100mV overdrive - prevents spurious resets in electrically noisy automotive or industrial environments. |
| Package | SC70-3 - 1.25mm × 0.85mm footprint, suitable for space-constrained PCB layouts in handheld devices. |
Pinout & Package
MAX810TEXR+ is housed in a 3-pin SC70-3 package (1.25mm × 0.85mm, 0.95mm height) rated for -40°C to +125°C operation. Pin 1 is RESET (active-high push-pull), Pin 2 is GND, and Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1: RESET | Active-high push-pull output | Drives high during normal operation; asserts low only during reset condition - directly interfaces with µP reset pins requiring active-high logic without external pull-up. |
| Pin 2: GND | Ground reference | Provides return path for internal comparator and output stage; must be connected to system ground plane with low-impedance trace to ensure noise immunity. |
| Pin 3: VCC | Supply input | Monitored +3.0V rail; powers internal circuitry and defines reset threshold reference - decoupling capacitor (0.1µF) required adjacent to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Precision 3.08V threshold | ±1.5% tolerance over full -40°C to +125°C range - eliminates need for external calibration in industrial temperature-grade designs. |
| 140ms min reset timeout | Guaranteed minimum pulse width independent of VCC ramp rate - ensures µP core and peripherals fully stabilize before release. |
| 12µA supply current | Ultra-low quiescent draw enables use in always-on battery-backed systems such as smart sensors and wearables. |
| VCC = +1V reset validity | RESET output remains logically valid down to 1V supply - critical for fail-safe behavior during gradual brownout recovery. |
| SC70-3 package | Small-outline 3-pin footprint with thermal pad compatibility - supports high-density PCB layouts and automated reflow assembly. |
Applications
| Industrial Programmable Logic Controllers (PLCs) | Portable Medical Diagnostic Devices |
|---|---|
Use Scenario: Power sequencing during cold start and brownout recovery in DIN-rail mounted PLC modules operating in factory-floor environments with fluctuating 24VDC-derived 3.3V rails. IC Role / Device Role / Timing Role: Supervises the 3.0V logic supply feeding FPGA configuration memory and ARM Cortex-M4 MCU, asserting active-high RESET until stable. Use Value: Prevents corrupted firmware boot due to marginal VCC by guaranteeing ≥140ms reset hold time and rejecting 20µs EMI-induced transients on the monitored rail. |
Use Scenario: Battery-powered handheld ultrasound probe with Li-ion cell discharging from 4.2V to 3.0V, powering a 3.0V analog front-end and low-power MCU. IC Role / Device Role / Timing Role: Monitors the regulated 3.0V supply derived from buck converter; asserts active-high RESET to halt MCU execution when supply drops below 3.08V. Use Value: Enables safe shutdown before ADC reference collapse, using only 12µA quiescent current to extend single-charge runtime beyond 12 months in standby mode. |
| Automotive Body Control Modules (BCMs) | Smart Energy Metering Hardware |
Use Scenario: 12V vehicle battery supplying a 3.0V domain via LDO for microcontroller and CAN transceiver in BCM subassembly. IC Role / Device Role / Timing Role: Detects undervoltage events during engine cranking (battery dip to ~6V) that cause downstream 3.0V rail to sag below 3.08V. Use Value: Ensures deterministic MCU reset with no external components, leveraging SC70-3's -40°C to +125°C rating and transient immunity to avoid false resets during ignition pulses. |
Use Scenario: Revenue-grade electricity meter with tamper-resistant design requiring guaranteed boot integrity after AC mains interruption and capacitor hold-up decay. IC Role / Device Role / Timing Role: Supervises the 3.0V backup supply maintained by supercapacitor during mains loss, holding active-high RESET until stable post-recovery. Use Value: Guarantees EEPROM write completion and RTC synchronization before MCU release, using precise 3.08V threshold aligned to metering SoC's 3.0V operational floor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX809TEXR+ | Same 3.08V threshold and SC70-3 package, but active-low push-pull RESET output. | Requires µP with active-low reset input; incompatible with active-high-only reset pins without level-shifting. | Select when interfacing with legacy µPs (e.g., STM32F0 series) that mandate active-low reset assertion. |
| TPS3123E18DBVR | 3.08V threshold, SOT-23-3, active-high output, but rated only to +105°C and consumes 20µA typical supply current. | Limited to commercial/industrial ambient temperatures; higher current draw reduces battery life in portable applications. | Choose for cost-sensitive consumer electronics where extended temperature range and ultra-low current are not required. |
Compared with MAX810TEXR+, MAX809TEXR+ provides identical accuracy and timing but requires redesign of reset logic polarity, while TPS3123E18DBVR trades off temperature grade and quiescent current for lower unit cost - making MAX810TEXR+ optimal for high-reliability, battery-constrained, extended-temperature applications.
Availability
MAX810TEXR+ is available at Aetrix Electronics and suitable for industrial programmable logic controllers, portable medical diagnostic devices, automotive body control modules, smart energy metering hardware, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX810TEXR+ 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, automotive, communications, and computing markets.
The MAX810TEXR+ belongs to Maxim's microprocessor supervisory product line, engineered specifically for deterministic, low-power, extended-temperature reset supervision in mission-critical embedded systems where supply stability cannot be assumed.
FAQ
What is the exact reset threshold voltage of the MAX810TEXR+ and how tightly is it specified?
The MAX810TEXR+ has a nominal reset threshold of 3.08V, with a tolerance of ±1.5% over the full operating temperature range of -40°C to +125°C. This specification is guaranteed by design and production-tested per Maxim's datasheet Rev 6, ensuring consistent behavior across batches and environmental conditions without requiring external calibration. The MAX810TEXR+ achieves this accuracy using laser-trimmed internal references, distinguishing it from less precise reset ICs with ±5% thresholds.
Does the MAX810TEXR+ require an external pull-up resistor on its RESET pin?
No, the MAX810TEXR+ does not require an external pull-up resistor because it features a push-pull active-high RESET output. Unlike the open-drain MAX803 series, the MAX810TEXR+ actively drives the RESET pin high during normal operation and low during reset, eliminating dependency on external biasing. This simplifies layout, reduces BOM count, and avoids potential floating-state issues during power transitions - a key advantage confirmed in Maxim's Typical Operating Circuit diagrams.
What is the minimum VCC voltage at which the MAX810TEXR+ guarantees valid RESET logic states?
The MAX810TEXR+ guarantees correct RESET logic state (high during normal operation, low during reset) down to VCC = +1.0V. Below this voltage, output behavior is not specified. This feature ensures fail-safe reset assertion during deep brownout events common in battery-powered systems, and is explicitly verified in the Absolute Maximum Ratings and Electrical Characteristics tables of the official datasheet.
How does the MAX810TEXR+ handle fast voltage transients on the VCC line?
The MAX810TEXR+ rejects fast negative-going VCC transients up to 20µs wide when the overdrive (VTH – VCC) is 100mV, as documented in Figure 1 of the datasheet. Its internal comparator incorporates filtering and hysteresis to ignore short-duration noise spikes, preventing spurious resets in electrically noisy environments like automotive or industrial settings. This immunity is inherent to the silicon design and requires no external RC network.
Is the MAX810TEXR+ pin-compatible with other members of the MAX803/MAX809/MAX810 family?
Yes, the MAX810TEXR+ shares identical SC70-3 pinout (RESET, GND, VCC) with MAX803TEXR+ and MAX809TEXR+, enabling direct substitution in layouts where output polarity and threshold match system requirements. However, functional compatibility depends on reset polarity: MAX810TEXR+ is active-high, while MAX809TEXR+ is active-low - swapping them without logic inversion will cause system malfunction. Pin compatibility does not imply functional interchangeability.
MAX810TEXR+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 3.08V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX810TEXR+ FAQ
1.How can I place an order for MAX810TEXR+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX810TEXR+ 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 MAX810TEXR+ reliable?
The price and inventory of MAX810TEXR+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX810TEXR+ is usually 5 days.
3.What payment methods are accepted for MAX810TEXR+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX810TEXR+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX810TEXR+?
MAX810TEXR+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX810TEXR+ 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 MAX810TEXR+?
For technical support, including MAX810TEXR+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX810TEXR+ requirements.
6.How does Aetrix verify that MAX810TEXR+ is sourced from the original manufacturer or authorized distributors?
All MAX810TEXR+ 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 MAX810TEXR+ meets industry standards.
7.What is the process for return or replacement of MAX810TEXR+?
All MAX810TEXR+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX810TEXR+, 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 MAX810TEXR+ part is unused and in its original packaging.
Return procedure for MAX810TEXR+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX810TEXR+ 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…
