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Analog Devices Inc./Maxim Integrated MXD1816XR29+
- Part No.:
- MXD1816XR29+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- -
- Description:
- MXD1816 LOW-POWER MICROPROCESSOR
- Quantity:
Unit Price:$0
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Product Details
MXD1816XR29+ - 2.88 V Low-Power Microprocessor Reset Supervisor
A compact three-pin supply supervisor with an open-drain active-low reset output, internal pull-up resistor, 2.88 V nominal threshold, and guaranteed reset timing for low-voltage digital systems.
Analog Devices lists the exact MXD1816XR29+ order code as a production model; the XR package code denotes the three-pin SC70 outline.
Overview
MXD1816XR29+ monitors the VCC rail of microprocessors, microcontrollers, and other digital systems. When VCC falls below its factory-set threshold, the device asserts an active-low reset. After the supply rises above the threshold, reset remains asserted for at least 100 ms so downstream logic can start from a known state.
Key Advantages
The R29 option provides a 2.88 V nominal reset threshold with accuracy specified across temperature.
A 100 ms minimum reset timeout holds the processor in reset while the supply stabilizes.
Typical consumption is only a few microamps, supporting portable and always-on monitoring designs.
The internal reset timing and pull-up resistor reduce component count around the monitored rail.
Feature Summary
Package & Footprint
The exact XR order-code construction uses the three-pin SC70 package. The corresponding site registry name is SC-70, SOT-323.
- Use the official mechanical drawing for pad dimensions and pin-one orientation.
- Route the monitored VCC node directly and place local decoupling near the device.
- Keep RESET away from high-current switching nodes and noisy clock traces.
- Verify assembly markings against the exact XR29+ order code.
Pin Functions
Supply input and monitored voltage for the reset-threshold comparator.
Open-drain active-low reset output with an internal pull-up resistor to VCC.
Ground reference.
SC70 pin numbering differs from the related SOT23 version; use the SC70 pin configuration from the official datasheet.
Key Specifications
| Ordering code | MXD1816XR29+ |
|---|---|
| Function | Microprocessor supply reset supervisor |
| Reset output | Open-drain, active low, internal pull-up |
| Nominal reset threshold | 2.88 V |
| Threshold range | 2.80 V minimum to 2.97 V maximum |
| Reset timeout | 100 ms minimum, 150 ms typical, 250 ms maximum |
| Supply range | 1.2 V to 5.5 V over the full operating temperature range |
| Typical supply current | 4 µA at VCC = 3.6 V, no load |
| Operating temperature | -40 °C to +105 °C |
| Package | 3-pin SC70 |
Always apply the official datasheet limits and test conditions to the final design.
Replacement Considerations
No drop-in alternative is asserted. A candidate replacement must match the 2.88 V threshold window, active-low open-drain behavior, pull-up arrangement, reset delay, operating voltage and temperature ranges, transient response, SC70 pin assignment, footprint, and lifecycle requirements.
Manufacturer Information
MXD1816XR29+ is documented by Analog Devices as a production model originating from the Maxim Integrated portfolio. Primary references: the official MXD1816 product page and MXD1810-MXD1818 datasheet.
Applications
Quality & Authenticity
Verify the complete MXD1816XR29+ order code, SC70 construction, top marking, lot/date traceability, terminal finish, and packaging labels. Inspect for remarking, contamination, lead damage, or prior rework before assembly.
FAQ
R29 selects the 2.88 V nominal reset threshold.
XR identifies the three-pin SC70 package option.
The MXD1816 includes an internal pull-up resistor, though the complete interface and load must still be checked against the datasheet.
Engineering Notice
This page is a selection aid. Confirm the current official datasheet, threshold timing, load conditions, footprint drawing, lifecycle status, and system reset behavior before releasing hardware.
MXD1816XR29+ Information
- Specifications
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- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Applications:
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- Mounting Type:
- -
- Supplier Device Package:
- -
- Grade:
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