My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6833FXRD0+T
- Part No.:
- MAX6833FXRD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6833FXRD0+T.pdf
- Description:
- IC MPU SUPERVISOR SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6833FXRD0+T from Maxim Integrated is a push-pull active-high voltage supervisor IC designed for ultra-low-voltage microprocessor reset monitoring in 1.2V–1.8V digital systems. It features a factory-set 1.050V reset threshold (±2.5% over temperature), 30ms reset timeout (D2 suffix), and 7.5µA typical supply current. Used to ensure reliable power-on initialization and brownout recovery in portable battery-powered equipment.
For engineers reviewing the MAX6833FXRD0+T datasheet, MAX6833FXRD0+T pinout, MAX6833FXRD0+T application, or MAX6833FXRD0+T equivalent, key selection criteria include active-high reset output compatibility, SC70-3 package footprint, guaranteed reset validity down to VCC = 0.75V, and immunity to sub-100ns MR glitches.
Technical Context
The MAX6833FXRD0+T implements a precision bandgap-based voltage comparator with hysteresis (0.75% of VTH) to monitor VCC against a fixed 1.050V threshold. Its internal timing circuit generates a precise 30ms reset assertion window after VCC rises above threshold or manual reset deassertion.
It uses a CMOS-compatible push-pull output stage that sources ≥50µA at 0.8×VCC when asserted (RESET = HIGH), and sinks ≤10µA when deasserted. The MR input includes a 20kΩ internal pullup and rejects transients <100ns, eliminating external debounce components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.050V ±2.5% over -40°C to +85°C - ensures accurate trip point across industrial temperature range |
| Reset Timeout Period | 30ms (D2 suffix) - guarantees µP reset hold time sufficient for full core initialization |
| Supply Current | 7.5µA typical at 1.2V - enables multi-year battery life in always-on monitoring applications |
| VCC Operating Range | 0.75V to 3.6V - supports valid reset assertion during deep brownout down to 0.75V |
| MR Input Pulse Width | 2µs minimum - allows clean reset initiation from short-duration mechanical switch closures |
| Reset Output Type | Push-pull active-high - eliminates need for external pullup and simplifies interface to µP reset inputs |
| Hysteresis | 0.75% of VTH - prevents chatter during slow VCC ramp-up or noise-induced threshold crossings |
Pinout & Package
MAX6833FXRD0+T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm), compatible with high-density PCB layouts and reflow soldering. Pin 1 is GND, Pin 2 is RESET (active-high push-pull output), and Pin 3 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Reference ground for internal comparator and output stage; must be low-impedance connection to system ground plane |
| 2 | RESET | Active-high push-pull output; drives HIGH (≥0.8×VCC) during reset assertion, LOW (<0.2×VCC) otherwise |
| 3 | VCC | Monitored supply input and power source; also serves as reference for MR and RESET logic levels |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed 1.050V threshold | Eliminates external resistor networks and calibration steps in production |
| 30ms fixed timeout period | Matches typical µP internal oscillator stabilization time without requiring external RC timing |
| 7.5µA supply current | Reduces quiescent power draw by >90% versus legacy reset ICs, critical for coin-cell operation |
| MR glitch rejection ≤100ns | Prevents false resets from ESD or switching noise without adding external RC filters |
| Valid reset down to VCC = 0.75V | Ensures deterministic behavior during deep undervoltage conditions before system shutdown |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Wearable glucose monitor operating from single CR2032 cell with VCC decaying from 3.0V to 1.8V during discharge. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to ARM Cortex-M0+ MCU until stable 1.8V rail is confirmed. Use Value: Prevents firmware execution errors during battery sag; 7.5µA ICC extends usable runtime by 18 months vs. discrete solutions. |
Use Scenario: DIN-rail mounted analog input module powered from isolated 3.3V DC/DC converter with transient-prone field wiring. IC Role / Device Role / Timing Role: Brownout detector triggering controlled shutdown sequence via active-high RESET to FPGA configuration controller. Use Value: 30ms timeout ensures ADC calibration completes before reset release; MR pin enables field-service hard reset without power cycle. |
| Smart Meter Communication Units | Low-Power IoT Edge Nodes |
Use Scenario: NB-IoT modem subsystem powered from 1.5V LDO, subject to rapid load-switching transients on shared power rail. IC Role / Device Role / Timing Role: Reset generator providing glitch-immune supervision of modem SoC during RF burst transmission. Use Value: 100ns MR rejection and 0.75% hysteresis prevent spurious resets during 2A current spikes; SC70-3 footprint saves 60% board area vs. SOT23. |
Use Scenario: Battery-powered environmental sensor node using duty-cycled BLE SoC with 1.2V core supply. IC Role / Device Role / Timing Role: Ultra-low-quiescent supervisor enabling wake-from-sleep reset validation before sensor acquisition. Use Value: 7.5µA ICC contributes <0.02% to total sleep-mode current; 1.050V threshold aligns precisely with SoC minimum operating voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6381XR24+T | 1.24V threshold, 200ms timeout, SC70-3, same 7.5µA ICC but no MR input | Suitable only for fixed-threshold, no-manual-reset designs; lacks MR pin for field serviceability | Select when longer timeout and higher threshold are acceptable and MR functionality is unnecessary |
| TPS3123E10DBVR | 1.0V threshold, 200ms timeout, SOT-23-3, 1.6µA ICC, push-pull active-low output | Requires level-shifting for active-high µP interfaces; lower ICC but incompatible reset polarity without redesign | Choose only if active-low reset is supported and 200ms hold time meets system requirements |
Compared with MAX6833FXRD0+T, MAX6381XR24+T offers longer timeout but removes manual reset capability, while TPS3123E10DBVR reduces current draw significantly but forces active-low interface redesign and sacrifices MR flexibility-neither provides the exact 1.050V/30ms/active-high/MR combination of the MAX6833FXRD0+T.
Availability
MAX6833FXRD0+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, smart meter communication units, and low-power IoT edge nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6833FXRD0+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 MAX6832–MAX6840 family was designed specifically to replace discrete reset circuits in space-constrained, ultra-low-voltage systems-delivering precision supervision with minimal external components and industry-leading quiescent current.
FAQ
What is the exact reset threshold voltage of the MAX6833FXRD0+T?
The MAX6833FXRD0+T has a factory-set reset threshold of 1.050V, with ±2.5% accuracy over the full -40°C to +85°C operating temperature range. This value is defined by the 'F' suffix in the part number per the Threshold Suffix Guide, and is verified in the Electrical Characteristics table under VTH parameter for MAX6833 devices.
Does the MAX6833FXRD0+T include a manual reset input (MR)?
No, the MAX6833FXRD0+T does not include a manual reset input. It belongs to the MAX6833/MAX6836/MAX6839 subgroup, which features only VCC monitoring and an active-high push-pull RESET output. MR functionality is present only in MAX6835/MAX6836/MAX6837 variants (4-pin SC70-4), as confirmed in the Pin Description section and Ordering Information table.
What is the reset timeout period for the MAX6833FXRD0+T?
The MAX6833FXRD0+T has a 30ms reset timeout period, indicated by the 'D2' suffix in its full ordering code. This is explicitly listed in Table 2 (Active Timeout Period Guide) and confirmed in the Electrical Characteristics table under tRP for D2 option (20ms to 40ms range, typical 30ms).
Can the MAX6833FXRD0+T operate with VCC below 1.0V?
Yes, the MAX6833FXRD0+T guarantees valid reset assertion down to VCC = 0.75V across the full -40°C to +85°C temperature range, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. Below 0.75V, reset behavior is not characterized, and the device may cease to function reliably.
Is the MAX6833FXRD0+T pin-compatible with older Maxim reset ICs like MAX809?
No, the MAX6833FXRD0+T is not pin-compatible with MAX809. While the datasheet states "pin compatible with MAX803/MAX809/MAX810" for the *family*, this refers to functional equivalence and package type (SC70-3), not identical pin mapping. MAX809 uses SOT23-3 with different pinout (VCC–GND–RESET), whereas MAX6833FXRD0+T uses SC70-3 with GND–RESET–VCC arrangement per the Pin Configurations diagram.
MAX6833FXRD0+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.575V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6833FXRD0+T FAQ
1.How can I place an order for MAX6833FXRD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6833FXRD0+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 MAX6833FXRD0+T reliable?
The price and inventory of MAX6833FXRD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6833FXRD0+T is usually 5 days.
3.What payment methods are accepted for MAX6833FXRD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6833FXRD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6833FXRD0+T?
MAX6833FXRD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6833FXRD0+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 MAX6833FXRD0+T?
For technical support, including MAX6833FXRD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6833FXRD0+T requirements.
6.How does Aetrix verify that MAX6833FXRD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6833FXRD0+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 MAX6833FXRD0+T meets industry standards.
7.What is the process for return or replacement of MAX6833FXRD0+T?
All MAX6833FXRD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6833FXRD0+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 MAX6833FXRD0+T part is unused and in its original packaging.
Return procedure for MAX6833FXRD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6833FXRD0+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…
