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programmable read-only memory

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See PROM.


(storage)Programmable Read-Only Memory - (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.

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If a HMMWV with a newly installed transmission goes into "limp mode" (won't shift out of second gear right away, it could have the wrong erasable programmable read-only memory (EPROM) chip installed.
In addition, FRAM's fast write capability and unlimited write endurance make it superior to other types of nonvolatile memory, such as electrically erasable programmable read-only memory (EEPROM) or Flash.
1 protocol module for high-speed serial communication up to 10Mbit/sec on each of two channels -- Dual channels for fault tolerance or independent operation for 2x bandwidth -- 32 message buffers, each with a payload up to 254 bytes of data -- 128KB flash memory with optional error code correction (ECC) -- 2KB electrically erasable programmable read-only memory (EEPROM) -- 16KB random access memory (RAM) -- Loop control Pierce oscillator with 0.
 
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