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FAQ: TPLD > Current FAQ
TPLD uses Floating-Gate One-Time Programmable (OTP) technology to program its parts, as opposed to other Non-Volatile Memory techniques such as eFuses or AntiFuses, or Volatile Memory technologies such as EEPROM or RAM.
Floating-Gate OTP technology works by trapping charge on a floating gate to store a binary digit and program the device. This process requires high voltages (8V for current TPLD devices) and is irreversible; once a TPLD device is permanently programmed or “burned” using this process, it cannot be reconfigured.
TPLD does not have any volatile memory, but utilizes registers to store and load device configurations before the device is permanently programmed.