ATMEL AT27C256R-70PU 256K OTP EPROM DIP-28, 70ns, 4.5-5.5V

The ATMEL AT27C256R-70PU is a high-performance, low-power 256K (32K x 8-bit) one-time programmable read-only memory (OTP EPROM) device, supplied in a 28-pin DIP package. Designed for reliable firmware storage, this memory IC provides fast access times and efficient operation for embedded systems and microprocessor-based applications. With a rapid read access time of just 70ns, it eliminates the need for speed-reducing WAIT states, enabling high-speed data retrieval in performance-critical systems.

Utilising Atmel's scaled CMOS technology, the AT27C256R-70PU delivers low active power consumption and fast programming, making it an ideal choice for development and production environments. The device operates from a single 5V power supply and is fully compatible with CMOS and TTL logic levels. Its robust design includes an integrated product identification code and a rapid programming algorithm of 100µs per byte, ensuring efficient and reliable programming.

Key Features:

• Memory Size: 256Kbit (32K x 8-bit)
• Access Time: 70ns
• Supply Voltage: 4.5V to 5.5V (single 5V supply)
• Package: 28-pin DIP (Dual Inline Package)
• Mounting: Through-hole
• Operating Temperature Range: -40°C to +85°C
• Standby Current: Maximum 100µA
• Active Current: Maximum 20mA at 5MHz
• Technology: High-reliability CMOS
• Compatibility: CMOS and TTL compatible inputs/outputs
• Programming: Rapid programming algorithm (100µs/byte)
• Special Feature: Integrated product identification code

The ATMEL AT27C256R-70PU is a dependable solution for storing firmware and code in embedded systems, offering high reliability, low power consumption, and fast access speeds. Its DIP package and through-hole mounting make it suitable for prototyping, development boards, and through-hole PCB designs.

Specifications:

• **Memory Type: