FLASH MEMORY

10

K9F5616U0B-YCB0,YIB0,PCB0,PIB0

K9F5616U0B-DCB0,DIB0,HCB0,HIB0

K9F5608U0B-YCB0,YIB0,PCB0,PIB0

K9F5608U0B-DCB0,DIB0,HCB0,HIB0

K9F5608Q0B-DCB0,DIB0,HCB0,HIB0

K9F5616Q0B-DCB0,DIB0,HCB0,HIB0

K9F5608U0B-VCB0,VIB0,FCB0,FIB0

PRODUCT INTRODUCTION

The K9F56XXX0B is a 264Mbit(276,824,064 bit) memory organized as 65,536 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 2048 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 K9F56XXX0B.

The K9F56XXX0B has addresses multiplexed into 8 I/Os(X16 device case: lower 8 I/Os). K9F5616X0B 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 32M-byte(X8 device) or 16M-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 K9F56XXX0B.

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.

Table 1. COMMAND SETS

NOTE : 1. The 01h command is available only on X8 device(K9F5608X0B).

Caution : Any undefined command inputs are prohibited except for above command set of Table 1.

Function

1st. Cycle

2nd. Cycle

Acceptable Command during Busy

Read 1

-

Read 2

50h

-

Read ID

90h

-

Reset

FFh

-

O

Page Program

80h

10h

Copy-Back Program

00h

8Ah

Block Erase

60h

D0h

Read Status

70h

-

O