X2864AP-25

64-Kilobit (8K words x 8 bits) formatted capacity with a 250ns maximum data access time and an integrated low-power complementary metal-oxide-semiconductor (CMOS) cell architecture. | 28-Pin Plastic DIP (600-mil Package) | Early microprocessor boot systems, legacy industrial automation controllers, diagnostic equipment storage blocks, retro computing motherboards. | X2864AP-25 | NTE2864 | None | Xicor X2864, X2864A, CAT28C64P-25, AT28C64-25PU, 2864 EEPROM | Retro Microcomputer Boot Firmware Node: Wired onto an active 8-bit Z80 homebrew computer prototyping deck to act as the primary, high-reliability non-volatile firmware chip, storing the core system BIOS and initial boot routines without requiring active battery power. | Xicor Inc. High-Reliability Electrically Erasable Programmable Read-Only Memory (EEPROM) Arrays: This standardized 5V-only byte-writeable EEPROM block was custom-engineered by Xicor to include an internal automated timer loop and complete write protection parameters to prevent corruption inside high-vibration physical factory cabinets and legacy instrumentation mainframes.