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Что (кто) такое Erasable Programmable Read-Only Memory - определение
NONVOLATILE MEMORY CHIP COMPRISING AN ARRAY OF FLOATING-GATE TRANSISTORS INDIVIDUALLY PROGRAMMED BY AN ELECTRONIC DEVICE THAT CAN BE ERASED, E.G. BY EXPOSURE TO STRONG UV LIGHT
Erasable programmable read-only memory; Eprom; EPROM Writing; UV EPROM; Uv eprom; EPROM programmer; Erasable programmable read only memory; EROM; Erasable programmable ROM
.jpg?width=200 "date=1997}}</ref>")
![[[Atmel]] AT27C010 - an OTP EPROM](https://commons.wikimedia.org/wiki/Special:FilePath/Dr. Neuhaus, Smarty 28.8 TI - Atmel AT27C010-9401.jpg?width=200 "[[Atmel]] AT27C010 - an OTP EPROM")
.jpg?width=200 "EPROM 8kbit - detail of 4 bits")
.jpg?width=200 "A 32 KB (256 Kbit) EPROM")
![8749]] [[Microcontroller]] stores its program in internal EPROM.](https://commons.wikimedia.org/wiki/Special:FilePath/NEC D8749HD.png?width=200 "8749]] [[Microcontroller]] stores its program in internal EPROM.")
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Erasable Programmable Read-Only Memory
<storage> (EPROM) A type of storage device in which the data
is determined by electrical charge stored in an isolated
("floating") MOS transistor gate. The isolation is good
enough to retain the charge almost indefinitely (more than ten
years) without an external power supply. The EPROM is
programmed by "injecting" charge into the floating gate, using
a technique based on the tunnel effect. This requires higher
voltage than in normal operation (usually 12V - 25V). The
floating gate can be discharged by applying ultraviolet light
to the chip's surface through a quartz window in the package,
erasing the memory contents and allowing the chip to be
reprogrammed.
(1995-04-22)
EPROM
Erasable Programmable Read Only Memory (Reference: ROM, IC, RL, EPROM)
EPROM
['i:pr?m]
¦ noun Electronics a read-only memory whose contents can be erased by ultraviolet light or other means and reprogrammed using a pulsed voltage.
Origin
1970s: acronym from erasable programmable ROM.
EPROM
Erasable Programmable Read-Only Memory
EROM
Erasable Read Only Memory (Reference: ROM, IC)
EPROM
An EPROM (rarely EROM), or erasable programmable read-only memory, is a type of programmable read-only memory (PROM) chip that retains its data when its power supply is switched off. Computer memory that can retrieve stored data after a power supply has been turned off and back on is called non-volatile.
Electrically Erasable Programmable Read-Only Memory
![STMicro]] [http://www.st.com/resource/en/datasheet/m24c02-f.pdf M24C02] [[I²C]] serial type EEPROM](https://commons.wikimedia.org/wiki/Special:FilePath/AT24C02 EEPROM 1480355 6 7 HDR Enhancer.jpg?width=200 "STMicro]] [http://www.st.com/resource/en/datasheet/m24c02-f.pdf M24C02] [[I²C]] serial type EEPROM")
![die]]](https://commons.wikimedia.org/wiki/Special:FilePath/ATMEL048 93C46A SC.jpg?width=200 "die]]")
![MCU]] integrates 512 Byte EEPROM](https://commons.wikimedia.org/wiki/Special:FilePath/Atmel-avr-atusb162-HD.jpg?width=200 "MCU]] integrates 512 Byte EEPROM")
![memory cell]]](https://commons.wikimedia.org/wiki/Special:FilePath/Flash-Programming.svg?width=200 "memory cell]]")
![memory cell]]](https://commons.wikimedia.org/wiki/Special:FilePath/Flash erase.svg?width=200 "memory cell]]")
![oxide]]](https://commons.wikimedia.org/wiki/Special:FilePath/Floating gate transistor-en.svg?width=200 "oxide]]")
![SIM card]]](https://commons.wikimedia.org/wiki/Special:FilePath/Sim Chip.jpg?width=200 "SIM card]]")
NONVOLATILE MEMORY COMPRISING ARRAYS OF FLOATING-GATE TRANSISTORS USED IN COMPUTERS, MICROCONTROLLERS &C. TO STORE RELATIVELY SMALL AMOUNTS OF DATA BUT ALLOWING INDIVIDUAL BYTES TO BE ERASED/REPROGRAMMED IN-CIRCUIT THROUGH SPECIAL PROGRAMMING SIGNALS
Electrically Erasable Programmable Read-Only Memory; Electrically erasable programmable read-only memory; E²PROM; SEEPROM; Electrically alterable read-only memory; E2PROM; EECMOS; Eecmos; Eeprom; EEPROM memory chip; EEP ROM; EEP-ROM; Electrically erasable programmable ROM
<storage> (EEPROM) A non-volatile storage device using a
technique similar to the floating gates in EPROMs but with
the capability to discharge the floating gate electrically.
Usually bytes or words can be erased and reprogrammed
individually during system operation.
In contrast to RAM, writing takes much longer than reading
and EEPROM is more expensive and less dense than RAM. It is
appropriate for storing small amounts of data which is changed
infrequently, e.g. the hardware configuration of an Acorn
Archimedes.
[Difference from EAPROM? ]
(1995-04-22)
Mask Read-Only Memory
NON-VOLATILE MEMORY USED IN COMPUTERS AND OTHER ELECTRONIC DEVICES; CLASS OF STORAGE MEDIUM USED IN COMPUTERS AND OTHER ELECTRONIC DEVICES
Read only memory; READ ONLY MEMORY; Read only Memory; Read-only storage; Mask ROM; EAROM; Read-Only Memory; Read-Only memory; Read Only memory; Read-only Memory; Mask rom; Masked ROM; MROM; Read Only Memory; ROM; Program Memory; Charged Capacitor Read-Only Storage; CCROS; Charged capacitor read-only storage; Balanced capacitor read-only storage; ROM chip; ROM (memory); ROM memory; Mask read-only memory
<storage> (MROM) A kind of ROM in which the memory contents
are determined by one of the masks used to manufacture the
integrated circuit. MROM can give high storage density
(bits per millimeter squared) making it a cheap solution for
high volume applications.
[Other ROM types? ]
(1995-04-22)
Read-only memory
NON-VOLATILE MEMORY USED IN COMPUTERS AND OTHER ELECTRONIC DEVICES; CLASS OF STORAGE MEDIUM USED IN COMPUTERS AND OTHER ELECTRONIC DEVICES
Read only memory; READ ONLY MEMORY; Read only Memory; Read-only storage; Mask ROM; EAROM; Read-Only Memory; Read-Only memory; Read Only memory; Read-only Memory; Mask rom; Masked ROM; MROM; Read Only Memory; ROM; Program Memory; Charged Capacitor Read-Only Storage; CCROS; Charged capacitor read-only storage; Balanced capacitor read-only storage; ROM chip; ROM (memory); ROM memory; Mask read-only memory
Read-only memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device.
Википедия
EPROM
.jpg?width=120)
An EPROM (rarely EROM), or erasable programmable read-only memory, is a type of programmable read-only memory (PROM) chip that retains its data when its power supply is switched off. Computer memory that can retrieve stored data after a power supply has been turned off and back on is called non-volatile. It is an array of floating-gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in digital circuits. Once programmed, an EPROM can be erased by exposing it to strong ultraviolet light source (such as from a mercury-vapor lamp). EPROMs are easily recognizable by the transparent fused quartz (or on later models resin) window on the top of the package, through which the silicon chip is visible, and which permits exposure to ultraviolet light during erasing.
