EEprom IC’s

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EEPROM (also written E2PROM and pronounced "e-e-prom," "double-e prom,") stands for Electrically Erasable Programmable Read-Only Memory and is a type of non-volatile memory which used in   TV,Computers and other electronic devices to store small amounts of data that must be saved when power is removed.EEPROM is a special type of PROM. EEPROM can be both erased and programmed with electrical pulses.Since it can be both electrically written into and electrically erased, the EEPROM can be rapidly programmed and erased in circuit for 

Adjustable Precision Shunt Regulator(TL431/AP431 family)

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The TL/AP431 family is 3-terminal adjustable precision shunt regulators with guaranteed temperature stability over the applicable extended commercial temperature range. The output voltage may be set at any level greater than 2.495V(VREF) up to 36V scarcely by selecting two external resistors that act as a voltage divider network. These devices have a typical output impedance of 0.2Ω.

Download ExpressPCB

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The ExpressPCB schematic and PCB design software is very quick to learn and completely free! Download a fully functional version here.    Download