ST72141K View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST72141K Datasheet PDF : 132 Pages
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ST72141K
1.5 EPROM PROGRAM MEMORY
The program memory of the OTP and EPROM de-
vices can be programmed with EPROM program-
ming tools available from STMicroelectronics.
EPROM Erasure
EPROM devices are erased by exposure to high
intensity UV light admitted through the transparent
window. This exposure discharges the floating
gate to its initial state through induced photo cur-
rent.
It is recommended that the EPROM devices be
kept out of direct sunlight, since the UV content of
sunlight can be sufficient to cause functional fail-
ure. Extended exposure to room level fluorescent
lighting may also cause erasure.
An opaque coating (paint, tape, label, etc...)
should be placed over the package window if the
product is to be operated under these lighting con-
ditions. Covering the window also reduces IDD in
power-saving modes due to photo-diode leakage
currents.
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