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K9F1216U0A Datasheet(PDF) 9 Page - Samsung semiconductor |
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K9F1216U0A Datasheet(HTML) 9 Page - Samsung semiconductor |
9 / 45 page FLASH MEMORY 9 K9F1208U0A K9F1216U0A Product Introduction The K9F1208X0A is a 528Mbit(553,648,218 bit) memory organized as 131,072 rows(pages) by 528 columns. Spare sixteen columns are located from column address of 512 to 527. A 528-byte(x8 device), 264word(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 connected to form a NAND structure. Each of the 16 cells resides in a different page. A block consists of two NAND structured strings. A NAND structure consists of 16 cells. Total 135168 NAND cells reside in a block. The array organization is shown in Figure 2. 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 16K-byte blocks. It indicates that the bit by bit erase operation is prohibited on the K9F1208X0A. The K9F1208X0A has addresses multiplexed into 8 I/O's. This scheme dramatically reduces pin counts 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. The 64M byte physical space requires 26 addresses(X8 device) or 25 addresses(X16 device), thereby requiring four cycles for byte-level addressing: column address, low row address and high row address, in that order. Page Read and Page Program need the same four address cycles following the required command input. In Block Erase operation, however, only the three 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 K9F1208X0A. The device provides simultaneous program/erase capability up to four pages/blocks. By dividing the memory array into four 128Mbit separate planes, simultaneous multi-plane operation dramatically increases program/erase performance by 4X while still maintaining the conventional 512 byte(X8 device) or 256 word(X16 device) structure. The extended pass/fail status for multi-plane program/erase allows system software to quickly identify the failing page/block out of selected multiple pages/blocks. Usage of multi-plane operations will be described further throughout this document. In addition to the enhanced architecture and interface, the device incorporates copy-back program feature from one page to another of the same plane without the need for transporting the data to and from the external buffer memory. Since the time-consuming burst- reading and data-input cycles are removed, system performance for solid-state disk application is significantly increased. 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 00h command defines starting address of the 1st half of registers. The 01h command defines starting address of the 2nd half of registers. After data access on the 2nd half of register by the 01h command, the status pointer is automatically moved to the 1st half register(00h) on the next cycle. 2. Page Program(True) and Copy-Back Program(True) are available on 1 plane operation. Page Program(Dummy) and Copy-Back Program(Dummy) are available on the 2nd,3rd,4th plane of multi plane operation. 3. The 71h command should be used for read status of Multi Plane operation. Caution : Any undefined command inputs are prohibited except for above command set of Table 1. Function 1st. Cycle 2nd. Cycle 3rd. Cycle Acceptable Command during Busy Read 1 00h/01h(1) -- Read 2 50h - - Read ID 90h - - Reset FFh - - O Page Program (True)(2) 80h 10h - Page Program (Dummy)(2) 80h 11h - Copy-Back Program(True)(2) 00h 8Ah 10h Copy-Back Program(Dummy)(2) 03h 8Ah 11h Block Erase 60h D0h - Multi-Plane Block Erase 60h----60h D0h - Read Status 70h - - O Read Multi-Plane Status 71h(3) -- O |
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