Description
The AT27C512R is a low-power, high performance 524,288 bit one-time programmable read only memory (OTP EPROM) organized 64K by 8 bits. It requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 45 ns, eliminating the need for speed reducing WAIT states on high performance microprocessor systems.
Atmel’s scaled CMOS technology provides high speed, lower active power consumption, and significantly faster programming. Power consumption is typically only 8 mA in Active Mode and less than 10 µA in Standby

FEATUREs
• Fast Read Access Time - 45 ns
• Low Power CMOS Operation
   100 µA max. Standby
   20 mA max. Active at 5 MHz
• JEDEC Standard Packages
   28-Lead 600-mil PDIP
   32-Lead PLCC
   28-Lead TSOP and SOIC
• 5V ± 10% Supply
• High Reliability CMOS Technology
   2,000V ESD Protection
   200 mA Latchup Immunity
• Rapid Programming Algorithm - 100 µs/byte (typical)
• CMOS and TTL Compatible Inputs and Outputs
• Integrated Product Identification Code
• Commercial and Industrial Temperature Ranges