Microchip | AT28C256-15JU

The AT28C256 is a high-performance electrically erasable and programmable read-only memory. Its memory size is 256K organized as 32,768 words by 8 bits with Atmel’s advanced nonvolatile CMOS technology.

The device can offer access times from 150 ns with power dissipation of just 440 mW. When the device is deselected, the CMOS standby current is less than 200 µA. It can be accessed like a Static RAM for the read or write cycle without the need for external components.

Features:

• Fast Read Access Time – 150 ns
• Automatic Page Write Operation
– Internal Address and Data Latches for 64 Bytes
– Internal Control Timer
• Fast Write Cycle Times
– Page Write Cycle Time: 3 ms or 10 ms Maximum
– 1 to 64-byte Page Write Operation
• Low Power Dissipation
– 50 mA Active Current
– 200 µA CMOS Standby Current
• Hardware and Software Data Protection
• DATA Polling for End of Write Detection
• High Reliability CMOS Technology
– Endurance: 104 or 105 Cycles
– Data Retention: 10 Years
• Single 5 V ± 10% Supply
• CMOS and TTL Compatible Inputs and Outputs
• JEDEC Approved Byte-wide Pinout
• Full Military and Industrial Temperature Ranges
• Green (Pb/Halide-free) Packaging Option