BUY 27C512-15 https://www.utsource.net/itm/p/1826899.html
512K-BIT [64Kx8] CMOS EPROM
The 27C512-15 is a 512K-bit CMOS EPROM (Electrically Programmable Read-Only Memory) manufactured by Texas Instruments. It has a 28-pin dual in-line package (DIP) and is organized as 64K words by 8 bits. The 27C512-15 is a non-volatile memory device, meaning that it retains its contents even when power is removed. It is used for storing program code and data in applications such as embedded systems, consumer electronics, automotive, and industrial applications. Features of the 27C512-15 include: High speed access time: 150ns Low power consumption Low voltage operation: 4.5V to 5.5V High reliability Endurance: 100,000 cycles Data retention: 10 years CMOS technology Pin compatible with 27C256 Applications of the 27C512-15 include: Automotive Industrial control Consumer electronics Embedded systems Telecommunications Instrumentation Medical equipment (For reference only)