AT28C64B DATASHEET EPUB

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Description. The AT28C64B is a high-performance electrically-erasable and programmable read- only memory (EEPROM). Its 64K of memory is organized as . AT28C64B datasheet, AT28C64B pdf, AT28C64B data sheet, datasheet, data sheet, pdf, Atmel, 64K EEPROM with Byte Page & Software Data Protection. The page write operation of the AT28C64B allows 1 to 64 bytes of data to be All command sequences must conform to the page write timing specifications.


At28c64b Datasheet Epub

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64K (8K x 8) CMOS E2PROM with Page Write and Software Data Protection, AT28C64B datasheet, AT28C64B circuit, AT28C64B data sheet: ATMEL. AT28C64BPU from MICROCHIP >> Specification: EEPROM, 64 Kbit, 8K x 8bit , Parallel, 5 MHz, DIP, 28 Pins. JEDEC Approved Byte-wide Pinout. • Industrial Temperature Ranges. • Green ( Pb/Halide-free) Packaging Option Only. 1. Description. The AT28C64B is a.

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5V 64Kbit (8Kbit x 8) Parallel EEPROM with Software Data Protection

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In this case, we recommend taking the laptop to a. The device contains a byte page register to allow writing to 64 bytes simultaneously. During a write cycle, the addresses and to 64 bytes of data are internally latched, freeing the address and data bus for other operations.

Following the initiation of a write cycle, the device will automatically write the latched data using an internal control timer. Once the end of a write cycle has been detected, a new access for a read or write can begin.

Atmel's AT28C64B has additional features to ensure high quality and manufacturability. The device utilizes internal error correction for extended endurance and improved data retention characteristics. An optional software data protection mechanism is available to guard against inadvertent writes.

Temperature Under Bias This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. When CE and OE are low and WE is high, the data stored at the memory location determined by the address pins is asserted on the outputs. The outputs are put in the highimpedance state when either OE is high. This dual line control gives designers flexibility in preventing bus contention in their systems.

The address is latched on the falling edge CE or WE, whichever occurs last. The data is latched by the first rising edge CE or WE.

5V 64Kbit (8Kbit x 8) Parallel EEPROM with Software Data Protection

Once a byte write has been started, it will automatically time itself to completion. Once a programming operation has been initiated and for the duration of read operation will effectively be a polling operation.

A page write operation is initiated in the same manner as a byte write; after the first byte is written, it can then be followed to 63 additional bytes. All bytes during a page write operation must reside on the same page as defined by the state of the to A12 inputs. For each WE high to low transition during the page write operation, to A12 must be the same.However, for the duration of tWC, read operations will effectively be polling operations.

During a write cycle, the addresses and to 64 bytes of data are internally latched, freeing the address and data bus for other operations.

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After writing the 3-byte command sequence and waiting tWC, the entire AT28C64B will be protected against inadvertent writes. Here' s a list of 25 free realistic wall frame and poster. The data is latched by the first rising edge CE or WE. Please note that you must have basic photoshop knowledge to use this project.