27C64 Datasheet | National Semiconductor

27C64 65 536-Bit (8 192 x 8) UV Erasable CMOS PROM Military Qualified April 1989 27C64 65 536-Bit (8 192 x 8) UV Erasable CMOS PROM Military Qualified General Description The 27C64 is a high-speed 64K UV erasable and electrically reprogrammable CMOS EPROM ideally suited for applications where fast turnaround pattern experimentation and low power consumption are important requirements The 27C64 is designed to operate with a single a5V power supply with g10% tolerance The CMOS design allows the part to operate over Military Temperature Ranges The 27C64 is packaged in a 28-pin dual-in-line package with transparent lid and a 32-pin windowed LCC The transparent lid allows the user to expose the chip to ultraviolet light to erase the bit pattern A new pattern can then be written electrically into the device by following the programming procedure This EPROM is fabricated with National’s proprietary time proven CMOS double-poly silicon gate technology which bines high performance and high density with low power consumption and excellent reliability The 27C64 specified on this data sheet is fully pliant with MIL-STD-883 Revision C Features Y Clocked sense amps for fast access time down to 200 ns Y Low CMOS power consumption Active Power 55 m W max Standby Power 0 55 m W max Y Performance patible to NSC800TM CMOS microprocessor Y Single 5V power supply Y Pin patible with NMOS 64K EPROMs Y Fast and reliable programming Y Static operation no clocks required Y TTL CMOS patible inputs outputs Y TRI-STATE output Y Optimum EPROM for total CMOS systems Y Manufacturer’s identification code for automatic pro- gramming control Y Windowed DIP and LCC Package Options Y Specifications guaranteed over full military temperature range (b55 C to a125 C) Y This device is processed in pliance with SMD85102 and the DIP version is dual marked Block Diagram TRI-STATE is a registered trademark of National Semiconductor Corporation NSC800TM is a trademark of National...