SM72240 Series

5-pin microprocessor reset circuit

Catalog

5-pin microprocessor reset circuit

Part	Package / Case	Reset Timeout	Output	Mounting Type	Reset	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Threshold	Type	Number of Voltages Monitored	Supplier Device Package
Texas Instruments SM72240MF-3.08/NOPB	SC-74A SOT-753	100 ms	Open Drain or Open Collector	Surface Mount	Active Low	-40 °C	125 °C	3.08 V	Simple Reset/Power-On Reset	1	SOT-23-5
Texas Instruments SM72240MFE-3.08/NOPB	SC-74A SOT-753	100 ms	Open Drain or Open Collector	Surface Mount	Active Low	-40 °C	125 °C	3.08 V	Simple Reset/Power-On Reset	1	SOT-23-5
Texas Instruments SM72240MFX-3.08/NOPB	SC-74A SOT-753	100 ms	Open Drain or Open Collector	Surface Mount	Active Low	-40 °C	125 °C	3.08 V	Simple Reset/Power-On Reset	1	SOT-23-5
Texas Instruments SM72240MFE-4.63/NOPB	SC-74A SOT-753	100 ms	Open Drain or Open Collector	Surface Mount	Active Low	-40 °C	125 °C	4.63 V	Simple Reset/Power-On Reset	1	SOT-23-5
Texas Instruments SM72240MF-4.63/NOPB	SC-74A SOT-753	100 ms	Open Drain or Open Collector	Surface Mount	Active Low	-40 °C	125 °C	4.63 V	Simple Reset/Power-On Reset	1	SOT-23-5

Catalog

5-pin microprocessor reset circuit

Key Features

• Renewable Energy GradePrecise monitoring of 5V supply voltagesFully specified over temperature−40°C to +125°C100 ms minimum Power-On Reset pulse width, 190 ms typical:Active-LowRESETOpen Drain OutputRESETOutput valid for VCC≥ 1VLow Supply Current, 6µA typicalPower supply transient immunityCompatible with MAX811/812 applicationsAll trademarks are the property of their respective owners.Renewable Energy GradePrecise monitoring of 5V supply voltagesFully specified over temperature−40°C to +125°C100 ms minimum Power-On Reset pulse width, 190 ms typical:Active-LowRESETOpen Drain OutputRESETOutput valid for VCC≥ 1VLow Supply Current, 6µA typicalPower supply transient immunityCompatible with MAX811/812 applicationsAll trademarks are the property of their respective owners.

Description

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 VCCrises above the reset threshold. The SM72240 has an active-low open-drainRESEToutput. 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. 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 VCCrises above the reset threshold. The SM72240 has an active-low open-drainRESEToutput. 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.