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HomeProductsIntegrated Circuits (ICs)Specialized ICsCAT810REXR-T
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CAT810REXR-T - CAT

Manufacturer Part Number
CAT810REXR-T
Manufacturer
CAT
Allelco Part Number
32D-CAT810REXR-T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
13,760 pcs available, New & Original
Parts Description
DAC91001
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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In stock: 13760

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Specifications

CAT810REXR-T Tech Specifications
CAT - CAT810REXR-T technical specifications, attributes, parameters and parts with similar specifications to CAT - CAT810REXR-T

Product Attribute Attribute Value
Part Number CAT810REXR-T
Package DAC91001
Description DAC91001
Stock Condition Get 13760 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer CAT
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Frequently Asked Questions(FAQ)

What is the operating temperature range for the CAT810REXR-T and how does it affect reliability in automotive applications?
The CAT810REXR-T operates over a junction-to-ambient temperature range from -40°C to +85°C, with a maximum junction temperature of 150°C. This extended range supports automotive-grade reliability requirements, where thermal cycling and ambient exposure are common. Designers must ensure PCB layout maintains adequate copper pour and spacing to prevent localized heating near the SC-70 package, which has limited thermal conductivity compared to larger packages.
How does the CAT810REXR-T compare to other reset ICs like the MAX809 in terms of reset threshold accuracy and power consumption?
While the CAT810REXR-T offers a typical 2.93V reset threshold with ±1.5% initial accuracy, the MAX809 provides fixed 4.63V and 4.38V versions with ±2% tolerance. The CAT810 draws only 5µA typical supply current versus the MAX809’s 10µA, making it more suitable for battery-powered systems requiring low quiescent current. However, the MAX809 lacks an active-low reset output variant in some configurations, limiting flexibility in logic-level interfacing.
Can the CAT810REXR-T be used in 3.3V systems without compromising noise immunity or reset timing margins?
Yes, the CAT810REXR-T is specifically designed for 3.3V operation with a nominal 2.93V threshold, providing a 270mV hysteresis window that improves noise rejection. In 3.3V systems, this allows sufficient margin above the threshold during brownout conditions while maintaining compatibility with standard logic families. The 140ms typical power-on reset delay ensures stable voltage rails before initiating microcontroller reset, reducing boot-up failures due to premature CPU execution.
What external components are required to configure the reset timeout period on the CAT810REXR-T?
The CAT810REXR-T uses an internal RC oscillator; no external components are needed to set the delay time. The power-on reset delay is factory-trimmed to 140ms typical at 3.3V, but actual variation can reach ±30% across temperature and supply. For applications requiring precise control over reset duration—such as after power cycling or manual resets—designers may need to add external circuitry like a capacitor-resistor network on the reset pin to extend or shorten the assertion time.
Is the SC-70 package of the CAT810REXR-T compatible with standard pick-and-place assembly processes?
Yes, the SC-70 (also known as SOT-323) is widely supported by automated SMT assembly equipment. The small footprint (2.0mm x 1.25mm) and 0.65mm lead pitch align with most reflow profiles using lead-free solder paste. Thermal management during reflow should consider the small copper pad size, which may require careful stencil design to avoid insufficient solder deposition or tombstoning.
How does the open-drain active-low RESET output of the CAT810REXR-T interface with different logic families?
The open-drain output allows flexible pull-up voltage selection independent of VCC, enabling direct connection to 1.8V, 3.3V, or 5V logic without level shifting. When pulled to 3.3V, it interfaces cleanly with TTL and CMOS inputs down to 2.4V, ensuring valid high-level recognition even under marginal conditions. This feature simplifies system design when integrating mixed-voltage subsystems.
What are the key differences between the CAT810REXR-T and the CAT811REXR-T in terms of functionality and application suitability?
The CAT811REXR-T features a 2.63V reset threshold instead of 2.93V, targeting lower-voltage microcontrollers such as those running at 1.8V or 2.5V. Both share the same 140ms delay, 5µA IQ, and SC-70 packaging, but the CAT811 provides tighter voltage monitoring for modern ultra-low-power MCUs. Designers selecting between them should evaluate their MCU’s POR specifications and allowable minimum operating voltage to avoid unintended resets during voltage dips.
Can the CAT810REXR-T tolerate brief voltage transients above its threshold without triggering a false reset?
The device includes built-in noise filtering through internal hysteresis and transient rejection circuitry. With 270mV of hysteresis, brief spikes up to 3.2V are typically ignored unless sustained. However, rapid voltage changes exceeding 1V/μs may still cause glitches on the reset line. Adding a small ceramic bypass capacitor (e.g., 100nF) between VCC and GND near the IC can further suppress transient-induced resets in noisy environments.
What is the typical response time of the CAT810REXR-T once the supply voltage crosses the reset threshold?
Upon crossing the 2.93V threshold downward, the reset signal activates within nanoseconds—typically less than 100ns from threshold detection to output assertion. This fast response ensures immediate intervention during brownout events, preventing corrupted state machines or partial writes to non-volatile memory. The combination of low latency and long delay (140ms) makes it effective for both transient protection and stable initialization sequences.

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Payment Support

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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA

CAT810REXR-T

CAT
32D-CAT810REXR-T

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