Microchip, 256 kB Parallel EEPROM, 150 ns 28-Pin SOIC Parallel

The Microchip AT28C256 is a high-performance 256Kbit Parallel EEPROM available in both Industrial and Military temp ranges, offering access times to 150ns with power dissipation of 440mW. Deselected, CMOS standby current is less than 200μA.

• Additional Features:
• 32 Kbits x 8 (256 Kbit)
• 5V ± 10% Supply
• Parallel Interface
• 150ns access time
• self-Timed Erase and Write Cycles (10 ms max)
• Page Write and Byte Write
• Data Polling for end of write detection
• Low Power Consumption:
• Read / Write current 40 mA (Max)
• Standby current TTL 2 mA (Max), CMOS 200 μA (Max)