K9F2808U0C-DCB0 Samsung semiconductor, K9F2808U0C-DCB0 Datasheet - Page 9

• Manufacturer Part Number: K9F2808U0C-DCB0
• Description: 16M x 8 Bit / 8M x 16 Bit NAND Flash Memory
• Manufacturer: Samsung semiconductor

K9F2808Q0C-DCB0,DIB0
K9F2808U0C-YCB0,YIB0
K9F2808U0C-DCB0,DIB0
Table 1. COMMAND SETS
NOTE: 1. The 00h command defines starting address of the 1st half of registers.
PRODUCT INTRODUCTION
The K9F28XXX0C is a 132Mbit(138,412,032 bit) memory organized as 32,768 rows(pages) by 528(X8 device) or 264(X16 device)
columns. Spare eight columns are located from column address of 512~527(X8 device) or 256~263(X16 device). A 528-byte(X8
device) or 264-word(X16 device) 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 memory array is made up of 16 cells that are serially con-
nected to form a NAND structure. Each of the 16 cells resides in a different page. A block consists of two NAND structures. A NAND
structure consists of 16 cells. Total 16896 NAND cells reside in a block. The array organization is shown in Figure 2-1,2-2. The pro-
gram and read operations are executed on a page basis, while the erase operation is executed on a block basis. The memory array
consists of 1024 separately erasable 16K-Byte(X8 device) or 8K-Word(X16 device) blocks. It indicates that the bit by bit erase oper-
ation is prohibited on the K9F28XXX0C.
The K9F28XXX0C has addresses multiplexed into 8 I/Os(X16 device case : lower 8 I/Os). K9F2816X0C allows sixteen bit wide data
transport into and out of page registers. This scheme dramatically reduces pin counts while providing high performance and allows
systems 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. Data is 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, Read command, Status Read command, etc require just one cycle bus. Some other com-
mands like Page Program and Copy-back Program and Block Erase, require two cycles: one cycle for setup and the other cycle for
execution. The 16K-byte(X8 device) or 32K-word(X16 device) physical space requires 24 addresses, thereby requiring three cycles
for word-level addressing: column address, low row address and high row address, in that order. Page Read and Page Program
need the same three address cycles following the required command input. In Block Erase operation, however, only the two row
address cycles are used. Device operations are selected by writing specific commands into the command register. Table 1 defines
the specific commands of the K9F28XXX0C.
The device includes one block sized OTP(One Time Programmable), which can be used to increase system security or to provide
identification capabilities. Detailed information can be obtained by contact with Samsung.
Caution : Any undefined command inputs are prohibited except for above command set of Table 1.
Read 1
Read 2
Read ID
Reset
Page Program
Block Erase
Read Status
The 01h command defines starting address of the 2nd half of registers.
After data access on 2nd half of register by the 01h command, start pointer is automatically moved to
1st half register(00h) on the next cycle.
Function
K9F2816Q0C-DCB0,DIB0
K9F2816U0C-YCB0,YIB0
K9F2816U0C-DCB0,DIB0
1st. Cycle
00h/01h
FFh
50h
90h
80h
60h
70h
(1)
9
K9F2808U0C-VCB0,VIB0
2nd. Cycle
D0h
10h
-
-
-
-
-
Acceptable Command during Busy
FLASH MEMORY
O
O