What Is An Eprom

EPROM or Erasable Programmable Read Only Memory is rewritable memory chip that can
hold its information without power. A customized EPROM can keep its information for as
long as twenty years and can be perused uncertain number of times. An Israeli designer,
Dov Frohman concocted the EPROM chip in 1971. 

EPROM chips are installed on an outside programming gadget prior to being utilized on the
circuit board. The EPROM chip requires an expensive artistic chip bundle with a little quartz
window that is shielded with hazy, tacky tape. For reinventing, the chip is extricated from the
circuit board, the tape is separated and it is put under a concentrated bright (UV) light of
frequency 235nm light for roughly 20 minutes. 

Some microcontrollers, before the period of EEPROMs and glimmer memory, utilized
EPROM to store their program. Such microcontrollers incorporate a few variants of the Intel
8048, and the "C" version of the PIC microcontroller. Like EPROM chips, such
microcontrollers came in windowed (costly) adaptations that were helpful for troubleshooting
and program improvement. Leaving the pass on of such a chip presented to daylight can
change its conduct startlingly. 

EPROMs come in a few sizes as to both bundling and capacity limit. Portions of similar sort
of EPROM from various producers are intercompatible insofar as they're just being perused,
there are unpretentious contrasts in the programming interaction. 

Most EPROMs can be distinguished by the developer by driving 12V on pin A9 and perusing
the two bytes of information. Be that as it may, developer programming would permit manual
setting of the chip to guarantee legitimate programming. 

EPROMs are the harbingers of the cutting edge EEPROMs and blaze memory.