Product Summary

The AT28C256-15PI is a high-performance electrically erasable and programmable read-only memory. Its 256K of memory is organized as 32,768 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the AT28C256-15PI offers access times to 150 ns with power dissipation of just 440 mW. When the device is deselected, the CMOS standby current is less than 200 µA.

Parametrics

AT28C256-15PI absolute maximum ratings: (1)Temperature under Bias: -55 to +125℃; (2)Storage Temperature: -65 to +150℃; (3)All Input Voltages (including NC Pins) with Respect to Ground: -0.6V to +6.25V; (4)All Output Voltages with Respect to Ground: -0.6V to VCC + 0.6V; (5)Voltage on OE and A9 with Respect to Ground: -0.6V to +13.5V.

Features

AT28C256-15PI features: (1)Fast Read Access Time – 150 ns; (2)Automatic Page Write Operation; (3)Internal Address and Data Latches for 64 Bytes; (4)Internal Control Timer; (5)Fast Write Cycle Times; (6)Page Write Cycle Time: 3 ms or 10 ms Maximum; (7)1 to 64-byte Page Write Operation; (8)Low Power Dissipation; (9)50 mA Active Current; (10)200 μA CMOS Standby Current; (11)Hardware and Software Data Protection; (12)DATA Polling for End of Write Detection; (13)High Reliability CMOS Technology; (14)Endurance: 104 or 105 Cycles; (15)Data Retention: 10 Years; (16)Single 5V ± 10% Supply; (17)CMOS and TTL Compatible Inputs and Outputs; (18)JEDEC Approved Byte-wide Pinout; (19)Full Military and Industrial Temperature Ranges; (20)Green (Pb/Halide-free) Packaging Option.

Diagrams

AT28C256-15PI block diagram

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