SM72240
SM72240 is Microprocessor Reset manufactured by Texas Instruments.
FEATURES
- 2 Renewable Energy Grade
- Precise monitoring of 5V supply voltages
- Fully specified over temperature
- - 40°C to +125°C
- 100 ms minimum Power-On Reset pulse width,
190 ms typical:
- Active-Low RESET Open Drain Output
- RESET Output valid for VCC ≥ 1V
- Low Supply Current, 6µA typical
- Power supply transient immunity
- patible with MAX811/812 applications
APPLICATIONS
- Microprocessor Systems
- puters
- Controllers
- Intelligent Instruments
- Portable/Battery-Powered Equipment
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 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.
Typical Application Circuit
PUSHBUTTON SWITCH
RESET
VCC RL
RESET INPUT
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PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 2011- 2013, Texas Instruments Incorporated
SNIS154C
- JANUARY 2011
- REVISED APRIL...
