The EN27C010 is a low-power 1-Megabit, 5V-only one-time-programmable (OTP) read-only memory (EPROM). Organized into 128K words with 8 bits per word, it features QuikRiteTM singleaddress location programming, typically at 20 s per byte. Any byte can be accessed in less than 45ns, eliminating the need for WAIT states in high-performance microprocessor systems. The EN27C010 has separate Output Enable ( OE ) and Chip Enable ( CE ) controls which eliminate bus contention issues.