All trademarks are the property of their respective owners.
The SM72240 microprocessor supervisory circuit monitors the power supplies in microprocessor and digital systems. It provides a reset to the microprocessor during power-up, power-down, brown-out conditions, and manual reset.
The SM72240 asserts a reset signal whenever the supply decreases below the factory-programmed reset threshold. Reset will be asserted for at least 100ms even after VCC rises above the reset threshold.
The SM72240 has an active-low open-drain RESET output.
The SM72240 is suitable for monitoring 5V. With a low supply current of only 6µA, the SM72240 is ideal for use in portable equipment. The SM72240 is available in the 5-pin SOT-23 package.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | SM72240 5-Pin Microprocessor Reset Circuit datasheet (Rev. C) | 05 Apr 2013 | |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 | ||
| Application note | AN-2122 SM3320-RF-EV Reference Design (Rev. E) | 06 May 2013 | ||
| Application note | SM3320-BATT-EV Charge Controller Reference Design (Rev. C) | 06 May 2013 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | Download |
|---|---|---|
| SOT-23 (DBV) | 5 | View options |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.