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LM809M3X-4.63 Datasheet(PDF) 1 Page - Texas Instruments |
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LM809M3X-4.63 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 14 page LM809, LM810 www.ti.com SNVS052D – SEPTEMBER 1999 – REVISED MAY 2013 LM809/LM810 3-Pin Microprocessor Reset Circuits Check for Samples: LM809, LM810 1 FEATURES DESCRIPTION The LM809/810 microprocessor supervisory circuits 2 • Precise Monitoring of 3V, 3.3V, and 5V Supply can be used to monitor the power supplies in Voltages microprocessor and digital systems. They provide a • Superior Upgrade to MAX809/810 reset to the microprocessor during power-up, power- • Fully Specified Over Temperature down and brown-out conditions. • 140ms Min. Power-On Reset Pulse Width, The function of the LM809/810 is to monitor the VCC 240ms Typical supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed – Active-Low RESET Output (LM809) reset threshold. The reset signal remains asserted for – Active-High RESET Output (LM810) 240ms after VCC rises above the threshold. The • Ensured RESET Output Valid for VCC≥1V LM809 has an active-low RESET output, while the LM810 has an active-high RESET output. • Low Supply Current, 15µA Typ • Power Supply Transient Immunity Seven standard reset voltage options are available, suitable for monitoring 5V, 3.3V, and 3V supply APPLICATIONS voltages. • Microprocessor Systems With a low supply current of only 15µA, the LM809/810 are ideal for use in portable equipment. • Computers The LM809/LM810 are available in the 3-pin SOT-23 • Controllers package and in the 6-Lead SON package. • Intelligent Instruments • Portable/Battery-Powered Equipment • Automotive Connection Diagrams Typical Application Circuit Top View Top View Figure 1. 3-Lead Figure 2. 6-Lead SOT-23-3 Package SON Package See Package Number See Package Number DBZ NGB0006A ( ) are for LM810 () are for LM810 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 1999–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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