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U643 Datasheet

Manufacturer: Atmel (now Microchip Technology)
U643 datasheet preview

Datasheet Details

Part number U643
Datasheet U643_ATMELCorporation.pdf
File Size 57.77 KB
Manufacturer Atmel (now Microchip Technology)
Description Flasher/ 30-mohm Shunt
U643 page 2 U643 page 3

U643 Overview

The bipolar integrated circuit U643B is used in relaycontrolled automotive flashers where a high-level EMC is required. Lamp outage is indicated by frequency doubling during hazard warning as well as direction mode.

U6433B from other manufacturers

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Brand Logo Part Number Description Other Manufacturers
TEMIC Semiconductors Logo U6433B Flasher/ 18-m Shunt/ Frequency Doubling Disabling TEMIC Semiconductors
Atmel (now Microchip Technology) logo - Manufacturer

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U643 Distributor

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