In an EAPROM, data can be changed

In an EAPROM, data can be changed

• A. One byte at a time
• B. Only in blocks
• C. Not at all
• D. Only at power-up

Answer: (A)

EAPROM stands for Electrically Alterable PROM, a non-volatile memory that can be updated after manufacture. The important point is that it supports programming at the byte level, so you can change a single byte without having to rewrite or erase a large block of memory. This byte-level programmability is what makes it convenient for small updates or calibration data. In contrast, block-oriented memories like some Flash approaches require erasing a whole block before you can program, and the idea that changes occur only at power-up isn’t accurate for EAPROM, since you can write when the device is properly addressed and commanded. So, data can be changed one byte at a time.

EAPROM stands for Electrically Alterable PROM, a non-volatile memory that can be updated after manufacture. The important point is that it supports programming at the byte level, so you can change a single byte without having to rewrite or erase a large block of memory. This byte-level programmability is what makes it convenient for small updates or calibration data. In contrast, block-oriented memories like some Flash approaches require erasing a whole block before you can program, and the idea that changes occur only at power-up isn’t accurate for EAPROM, since you can write when the device is properly addressed and commanded. So, data can be changed one byte at a time.