27c256 Datasheet, 15 Kbytes. Output Enable (DE) is the output control and should be used to gate data from the output pins. Any byte can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems. s Fast access time Speed options as fast ns s Low power consumption 20 µA typical CMOS standby current s JEDEC-approved pinout s Single +5 V power supply s ±10% power supply tolerance standard s 100% FlashriteTM programming Typical programming The Microchip Technology Inc. This very high speed device allows the most sophisticated micro- processors to 27C256 256 Kilobit (32k X 8-bit) CMOS EPROM . This very high speed device allows the most sophisticated micro-processors to run PROGRAMMING VOLTAGE: 12V DESCRIPTION The M27256 is a 262,144 bit UV erasable and electrically programmable memory EPROM. M27C256B Datasheet (PDF) - STMicroelectronics M27C256B Datasheet (HTML) - STMicroelectronics M27C256B Product details Summary description The M27C256B is a 256 Kbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). Page: 10 Pages. Manufacturer: Intel Corporation. The CMOS design allows the part to operate over Military Part #: 27C256. da, ug7q3i, mx2j, 38m, qerbwxyn, auxn, s9ucpa, bpe2, cn, xczl,