MICROCHIP AT27C512R-70PU OTP EPROM 512Kbit 64K x 8bit DIP-28

The MICROCHIP AT27C512R-70PU is a high-performance, low-power, 524,288-bit One-Time Programmable Read-Only Memory (OTP EPROM), organised as 64K by 8 bits. It operates with a single 5V power supply (±10%) in normal read mode, making it ideal for embedded firmware storage in industrial and automotive systems.

With a fast read access time of 45ns, this EPROM eliminates the need for speed-reducing WAIT states in high-performance microprocessor designs. It utilises advanced scaled CMOS technology, delivering high speed, lower active power consumption, and significantly faster programming compared to traditional EPROMs. Power consumption is typically only 8mA in active mode and less than 10µA in standby mode, ensuring energy efficiency in battery-powered or power-sensitive applications.

Key Features

• 45ns fast read access time
• Low-power CMOS operation
• 5V ±10% supply voltage
• High-reliability CMOS technology
• 2000V ESD protection
• 200mA latchup immunity
• 100µs/byte typical rapid programming algorithm
• CMOS- and TTL-compatible inputs and outputs
• Integrated product identification code
• Supplier’s original packaging: Tube

This OTP EPROM provides 64K bytes of storage, allowing firmware to be stored reliably and accessed without the delays of mass storage media. The rapid programming algorithm reduces programming time while ensuring reliable, repeatable programming. It is available in a standard DIP-28 package with through-hole mounting, suitable for prototyping and industrial applications requiring robust, removable memory components.

Specifications

• Memory Density: 512Kbit
• Memory Configuration: 64K x 8bit
• IC Case / Package: DIP-28
• Supply Voltage Min: 4.5V
• Supply Voltage Max: 5.5V
• IC Mounting: Through Hole
• Operating Temperature Min: -40°C
• Operating Temperature Max: 85°C
• No. of Pins: 28