EN27LN51208 Datasheet, PDF (8/46 Pages) Eon Silicon Solution Inc. – 512 Megabit (64 M x 8) SLC, 3.3 V NAND Flash Memory

7. Product Introduction
EN27LN51208
The EN27LN51208 is a 528Mbit memory organized as 32K 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 4,096 separately
erasable 128K-byte blocks. It indicates that the bit-by-bit erase operation is prohibited on the
EN27LN51208.
The EN27LN51208 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.
Table 2. Command Set
Function
1st Cycle 2nd Cycle
Read
00h
30h
Read for Copy Back
00h
35h
Read ID
90h
-
Reset
FFh
-
Page Program
80h
10h
Copy-Back Program
85h
10h
Block Erase
Random Data Input ⁽¹⁾
Random Data Output ⁽¹⁾
60h
D0h
85h
-
05h
E0h
Read Status
70h
-
Cache Program
80h
15h
Cache Read
31h
-
Read Start For Last Page Cache Read
3Fh
-
Note:
1. Random Data Input / Output can be executed in a page.
Acceptable Command
during Busy
O
O
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2013 Eon Silicon Solution, Inc., www.eonssi.com
Rev. A, Issue Date: 2013/09/30