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EN27SN1G08 Datasheet(PDF) 8 Page - Eon Silicon Solution Inc. |
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EN27SN1G08 Datasheet(HTML) 8 Page - Eon Silicon Solution Inc. |
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8 / 44 page  This Data Sheet may be revised by subsequent versions ©2011 Eon Silicon Solution, Inc., www.eonssi.com or modifications due to changes in technical specifications. EN27SN1G08 Rev. B, Issue Date: 2012/05/21 Product Introduction The device is a 1,056Mbit memory organized as 64K rows (pages) by 2,112x8 columns. Spare 64x8 columns are located from column address of 2,048~2,111. A 2,112-byte data register is connected to memory cell arrays accommodating data transfer between the I/O buffers and memory during page read and page program operations. The program and read operations are executed on a page basis, while the erase operation is executed on a block basis. The memory array consists of 1,024 separately erasable 128K-byte blocks. It indicates that the bit-by-bit erase operation is prohibited on the device. The device has addresses multiplexed into 8 I/Os. This scheme dramatically reduces pin counts and allows system upgrades to future densities by maintaining consistency in system board design. Command, address and data are all written through I/O's by bringing WE# to low while CE# is low. Those are latched on the rising edge of WE#. Command Latch Enable (CLE) and Address Latch Enable (ALE) are used to multiplex command and address respectively, via the I/O pins. Some commands require one bus cycle. For example, Reset Command, Status Read Command, etc require just one cycle bus. Some other commands, like page read and block erase and page program, require two cycles: one cycle for setup and the other cycle for execution. In addition to the enhanced architecture and interface, the device incorporates copy-back program feature from one page to another page without need for transporting the data to and from the external buffer memory. |
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