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Home ›  LL49 > LM809M3-2.93/NOPB-LM809M3-3.08/NOPB-LM809M3-4.38NOPB-LM809M3-4.63/NOPB-LM809M3X-2.93 NOPB-LM809M3X-3.08/NOPB,Active Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105
LM809M3-2.93/NOPB-LM809M3-3.08/NOPB-LM809M3-4.38NOPB-LM809M3-4.63/NOPB-LM809M3X-2.93 NOPB Fast Delivery,Good Price
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LM809M3-2.93/NOPB |LM809M3293NOPBNSN/a1000avaiActive Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105
LM809M3-3.08/NOPB |LM809M3308NOPBNSN/a44avaiActive Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105
LM809M3-4.38NOPB |LM809M3438NOPBNSCN/a1000avaiActive Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105
LM809M3-4.63/NOPB |LM809M3463NOPBNSCN/a841avaiActive Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105
LM809M3X-2.93 NOPB |LM809M3X293NOPBNSC N/a32800avaiActive Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105
LM809M3X-3.08/NOPB |LM809M3X308NOPBNSCN/a3000avaiActive Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105


LM809M3X-2.93 NOPB ,Active Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105Maximum Ratings.. 410.2 Layout Example....... 116.2 ESD Ratings........ 411 Device and Documentatio ..
LM809M3X-3.08/NOPB ,Active Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105Block Diagram..... 7Information..... 127.3 Feature Description...... 74 Revision HistoryNOTE: Page ..
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LM809M3-2.93/NOPB-LM809M3-3.08/NOPB-LM809M3-4.38NOPB-LM809M3-4.63/NOPB-LM809M3X-2.93 NOPB-LM809M3X-3.08/NOPB
Active Low Wide Temperature 3-Pin Reset IC 3-SOT-23 -40 to 105
LM809
RESET RESET
INPUT
GND GND
VCC VCC
VCC
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LM809, LM810

SNVS052E–SEPTEMBER 1999–REVISED APRIL 2016
LM809/LM810 3-Pin Microprocessor Reset Circuits Features
Precision Monitoringof Supply Voltages Available Threshold Options:
2.63V, 2.93V, 3.08V, 4.38V, 4.63V Superior Upgradeto MAX809 and MAX810 Fully Specified Over Temperature 140-ms Minimum Power-On Reset Pulse Width,
240-ms Typical Active-Low RESET Output (LM809) Active-High RESET Output (LM810) Ensured RESET Output Valid for VCC≥1V Low Supply Current, 15-µA Typical Power Supply Transient Immunity Applications Factory Automation Building Automation Programmable Logic Control Renewable Energy Microprocessor Systems Computers Controllers Intelligent Instruments Portable/Battery-Powered Equipment Automotive Description
The LM809 and LM810 microprocessors supervisory
circuits can be usedto monitor the power suppliesin
microprocessor and digital systems. They providea
resetto the microprocessor during power-up, power-
down and brown-out conditions.
The functionof the LM809 and LM810 areto monitor
the VCC supply voltage, and asserta reset signal
whenever this voltage declines below the factory-
programmed reset threshold. The reset signal
remains asserted for 240 ms after VCC rises above
the threshold. The LM809 has an active-low RESET
output, while the LM810 has an active-high RESET
output.
Seven
suitable for monitoring 5-V, 3.3-V, and 3-V supply
voltages.
Witha low supply currentof only 15 µA, the LM809
and LM810 are ideal for usein portable equipment.
Device Information(1)

(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Typical Application for Microprocessor Reset Circuit
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