Atmel AT27C256R-70PU EPROM 256K DIL28

This low power, high performance OTP EPROM device from Atmel requires only one 5V power supply in normal read mode operation. The high speed access time eliminates the need for speed reducing WAIT states in high performance microprocessor systems.

Utilising scaled CMOS technology provides low active power consumption and fast programming. The storage capability of these devices allows firmware to be reliably stored and accessed by the system without the delays of mass storage media.

• Fast access time
• Low power CMOS operation
• Supply 5V ±10%
• ESD protection 2000V
• Rapid programming algorithm
• CMOS and TTL compatible inputs/outputs
• Operating temperature range –40°C to +85°C
• 256Kbit memory
• 28-DIP package