One Time Programmable Read-Only Memory - meaning and definition. What is One Time Programmable Read-Only Memory
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What (who) is One Time Programmable Read-Only Memory - definition

FORM OF DIGITAL MEMORY WHERE THE SETTING OF EACH BIT IS LOCKED BY A FUSE OR ANTIFUSE
Programmable Read-Only Memory; OTPROM; Otprom; One-time programmable; One-Time Programmable; One Time Programmable ROM; Programmable read-only memory
  • Texas Instruments PROM  type TBP18SA030N

One Time Programmable Read-Only Memory      
<storage> (OTPROM, EPROM OTP) A kind of storage device like an EPROM but with no quartz glass window in the package for erasing the contents. This reduces the packaging cost but means the device cannot be erased with UV and so can only be written once. Erasure is possible, but expensive, with X-rays. (1995-04-22)
Programmable Read-Only Memory         
<storage> (PROM) A kind of ROM which can be written using a PROM programmer. The contents of each bit is determined by a fuse or antifuse. The memory can be programmed once after manufacturing by "blowing" the fuses, which is an irreversible process. Blowing a fuse opens a connection while blowing an antifuse closes a connection (hence the name). Programming is done by applying high-voltage pulses which are not encountered during normal operation. (1995-04-22)

Wikipedia

Programmable ROM

A programmable read-only memory (PROM) is a form of digital memory where the contents can be changed once after manufacture of the device. The data is then permanent and cannot be changed. It is one type of read-only memory (ROM). PROMs are used in digital electronic devices to store permanent data, usually low level programs such as firmware or microcode. The key difference from a standard ROM is that the data is written into a ROM during manufacture, while with a PROM the data is programmed into them after manufacture. Thus, ROMs tend to be used only for large production runs with well-verified data. PROMs may be used where the volume required does not make a factory-programmed ROM economical, or during development of a system that may ultimately be converted to ROMs in a mass produced version.

PROMs are manufactured blank and, depending on the technology, can be programmed at wafer, final test, or in system. Blank PROM chips are programmed by plugging them into a device called a PROM programmer. Companies can keep a supply of blank PROMs in stock, and program them at the last minute to avoid large volume commitment. These types of memories are frequently used in microcontrollers, video game consoles, mobile phones, radio-frequency identification (RFID) tags, implantable medical devices, high-definition multimedia interfaces (HDMI) and in many other consumer and automotive electronics products.