■ 제품필수정보

제조사	Microchip
제조사품명	AT28HC256-12JU
간략설명	Microchip AT28HC256-12JU, 256kbit Parallel EEPROM Memory, 120ns 32-Pin PLCC Parallel

■ 제품사양

Memory Size = 256kbit Interface
타입 = Parallel
패키지 = PLCC
장착형태 = Surface Mount
핀수 = 32 Organisation = 32K x 8 bit Minimum Operating Supply Voltage = 4.5 V Maximum Operating Supply Voltage = 5.5 V Programming Voltage = 4.5 ??5.5V Number of Bits per Word = 8bit
크기 = 11.5 x 14.04 x 3.17mm Data Retention = 10yr The Microchip AT28HC256 is a high-performance 256Kbit Parallel EEPROM available in both Industrial and Military temp ranges, offering access times to 70ns with power dissipation of 440mW. Deselected, CMOS standby current is less than 5mA. Accessed like static RAM for the read or write cycle without external components, it contains a 64-byte page register to allow writing of up to 64 bytes simultaneously. Features an internal Error Correction Circuit for extended endurance and improved data retention, in Military version. Optional Software Data Protection mechanism guards against inadvertent writes, and an extra 64 bytes of EEPROM enables device identification or tracking.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)