EN27SN1G08 EN27SN1G08 1 Gigabit (128 Mx 8), 1.8 V NAND Flash Memory Features • Voltage Supply: 1.7V ~ 1.95V • Hardware Data Protection - Program/Erase Lockout During Power Transitions • Organization - Memory Cell Array : (128M + 4M) x 8bit for 1Gb - Data Register : (2K + 64) x 8bit • Reliable CMOS Floating-Gate Technology - ECC Requirement: 1 bit/528 bytes - Endurance: 100K Program/Erase Cycles - Data Retention: 10 Years • Automatic Program and Erase - Page Program : (2K + 64) bytes - Block Erase : (128K + 4K) bytes • Command Register Operation • Page Read Operation - Page Size : (2K + 64) bytes - Random Read : 25µs (Max.) - Serial Access : 45ns (Min.) • Automatic Page 0 Read at Power-Up Option - Boot from NAND support - Automatic Memory Download • NOP: 4 cycles • Memory Cell: 1bit/Memory Cell • Cache Program/Read Operation • Fast Write Cycle Time - Page Program Time : 250µs (Typ.) - Block Erase Time : 2ms (Typ.) • Copy-Back Operation • EDO mode • Command/Address/Data Multiplexed I/O Port This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. • OTP Operation ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 General Description The device is a 128Mx8bit with spare 4Mx8bit capacity. The device is offered in 1.8V VCC Power Supply. Its NAND cell provides the most cost-effective solution for the solid state mass storage market. The memory is divided into blocks that can be erased independently so it is possible to preserve valid data while old data is erased. The device contains 1024 blocks, composed by 64 pages consisting in two NAND structures of 32 series connected Flash cells. A program operation allows to write the 1056-Word page in typical 250us and an erase operation can be performed in typical 2ms on a 128K-Byte for device block. Data in the page mode can be read out at 45ns cycle time per Byte. The I/O pins serve as the ports for address and command inputs as well as data input/output. The copy back function allows the optimization of defective blocks management: when a page program operation fails the data can be directly programmed in another page inside the same array section without the time consuming serial data insertion phase. The cache program feature allows the data insertion in the cache register while the data register is copied into the Flash array. This pipelined program operation improves the program throughput when long files are written inside the memory. A cache read feature is also implemented. This feature allows to dramatically improving the read throughput when consecutive pages have to be streamed out. This device includes extra feature: Automatic Read at Power Up. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Pin Configuration (TOP VIEW) (BGA 63L, 9mm X 11mm X 1.0mm Body, 0.8mm Pin Pitch) This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Table 1. Pin Description Symbol I/O0 – I/O7 CLE ALE CE# RE# WE# WP# R/B# Pin Name Function The I/O pins are used to input command, address and data, and Data Inputs/Outputs to output data during read operations. The I/O pins float to Hi-Z when the chip is deselected or when the outputs are disabled. The CLE input controls the activating path for commands sent to Command Latch the command register. When active high, commands are latched Enable into the command register through the I/O ports on the rising edge of the WE# signal. The ALE input controls the activating path for address to the Address Latch internal address registers. Addresses are latched on the rising Enable edge of WE# with ALE high. The CE# input is the device selection control. When the device is in the Busy state, CE# high is ignored, and the device does not Chip Enable return to standby mode in program or erase operation. Regarding CE# control during read operation, refer to ’Page read’ section of Device operation. The RE# input is the serial data-out control, and when active drives the data onto the I/O bus. Data is valid tREA after the falling Read Enable edge of RE# which also increments the internal column address counter by one. The WE# input controls writes to the I/O port. Commands, Write Enable address and data are latched on the rising edge of the WE# pulse. The WP# pin provides inadvertent program/erase protection Write Protect during power transitions. The internal high voltage generator is reset when the WP# pin is active low. The R/B# output indicates the status of the device operation. When low, it indicates that a program, erase or random read Ready/Busy Output operation is in process and returns to high state upon completion. It is an open drain output and does not float to Hi-Z condition when the chip is deselected or when outputs are disabled. VCC Power Supply VSS Ground NC No Connection VCC is the power supply for device. Lead is not internally connected. Note: Connect all VCC and VSS pins of each device to common power supply outputs. Do not leave VCC or VSS disconnected. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Block Diagram Functional Block Diagram Vcc Vss X-Buffers Latches & Decoders A12 – A27 1,024M + 32M Bit for 1Gb NAND Flash Array Y-Buffers Latches & Decoders A0 – A11 Data Register & S/A Y - Gating Command Command Register Vcc I/O Buffers & Latches Vss Control Logic & High Voltage Generator CE# RE# WE# Global Buffers Output Driver I/O0 I/O7 CLE ALE WP# Array Organization This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Address Cycle Map I/O 0 I/O 1 I/O 2 I/O 3 I/O 4 I/O 5 I/O 6 I/O 7 Address 1st Cycle A0 A1 A2 A3 A4 A5 A6 A7 Column Address 2nd Cycle A8 A9 A10 A11 L* L* L* L* Column Address 3rd Cycle A12 A13 A14 A15 A16 A17 A18 A19 Row Address 4th Cycle Note: A20 A21 A22 A23 A24 A25 A26 A27 Page Address 1. Column Address : Starting Address of the Register. 2. * L must be set to “Low”. 3. * The device ignores any additional input of address cycles than required. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Ordering Information EN27SN 1G 08 - 45 CE I P PACKAGING CONTENT P = RoHS compliant TEMPERATURE RANGE I = Industrial (-40℃ to +85℃) PACKAGE CE = 63L 9x11x1.0mm BGA, pitch: 0.8mm, ball: 0.45mm SPEED OPTION for BURST ACCESS TIME 45 = 45ns Data Length 08 = 8-bit width DENSITY 1G = 1Gigabit [(128M + 4M) x 8 Bit] BASE PART NUMBER EN = Eon Silicon Solution Inc. 27SN = 1.8V Operation NAND Flash This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 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. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 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 60h D0h 85h - Random Data Input (1) (1) 05h E0h Read Status Cache Program Cache Read 70h 80h 31h 15h - Read Start for Last Page Cache Read 3Fh - Random Data Output Acceptable Command during Busy O O Note: 1. Random Data Input / Output can be executed in a page. Absolute Maximum Ratings Parameter Voltage on any pin relative to VSS Temperature Under Bias Storage Temperature Short Circuit Current Symbol VCC VIN VI/O TBIAS TSTG IOS Rating -0.6 to +2.45 -0.6 to +2.45 -0.6 to VCC + 0.3 (< 2.45) -40 to +125 Unit V ℃ ℃ mA -65 to +150 5 Note: 1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect reliability. RECOMMENDED OPERATING CONDITIONS (Voltage reference to GND, TA = – 40°C to 85°C) Parameter Supply Voltage Supply Voltage Symbol VCC VSS This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. Min. 1.7 0 Typ. 1.8 0 Max. 1.95 0 Unit V V ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 DC AND OPERATION CHARACTERISTICS (Recommended operating conditions otherwise noted) Parameter Page Read with Serial Access Operating Program Current Erase Stand-by Current (TTL) Stand-by Current (CMOS) Symbol Test Conditions Min. Typ. Max. ICC1 tRC=45ns, CE# =VIL, IOUT=0mA - 15 30 ICC2 ICC3 ISB1 ISB2 CE# =VIH, WP# =0V/VCC CE# = VCC -0.2, WP# =0V/ VCC - 15 15 10 VIN=0 to VCC (max) - - 30 30 1 50 ±10 Input Leakage Current ILI Output Leakage Current VIH Input Low Voltage, All inputs Output High Voltage Level Output Low Voltage Level Output Low Current (R/B#) uA - - ±10 uA 0.8 x VCC - VCC +0.3 V (1) IOH=-100uA IOL=+100uA VOL=0.1V -0.3 VCC -0.1 3 4 0.2 x VCC 0.1 - V V V mA VOUT=0 to VCC (max) VIL VOH VOL IOL (R /B#) VALID BLOCK Min. 1,004 Typ. - Max. 1,024 Unit Blocks Note: 1. The device may include initial invalid blocks when first shipped. Additional invalid blocks may develop while being used. The number of valid blocks is presented as first shipped. Invalid blocks are defined as blocks that contain one or more bad bits which cause status failure during program and erase operation. Do not erase or program factory-marked bad blocks. Refer to the attached technical notes for appropriate management of initial invalid blocks. 2. The 1st block, which is placed on 00h block address, is guaranteed to be a valid block at the time of shipment and is guaranteed to be a valid block up to 1K program/erase cycles with 1 bit/528 bytes ECC. AC TEST CONDITION (TA = – 40°C to 85°C, VCC=1.7V~1.95V) Parameter Input Pulse Levels Input Rise and Fall Times Input and Output Timing Levels Output Load mA uA - Note: 1. VIL can undershoot to -0.4V and VIH can overshoot to VCC+0.4V for durations of 20ns or less. 2. Typical value are measured at VCC =1.8V, TA = 25℃. And not 100% tested. Symbol NVB mA (1) ILO Input High Voltage Unit Condition 0V to VCC 5 ns VCC /2 1 TTL Gate and CL=30pF Note: * Refer to Ready / Busy# section, R/B output’s Busy to Ready time is decided by the pull-up resistor (RP) tied to R/B# pin. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 CAPACITANCE (TA = 25°C, VCC=1.8V, f =1.0MHz) Item Symbol Test Condition Input / Output Capacitance CI/O VIL = 0V Input Capacitance CIN VIN = 0V Note: Capacitance is periodically sampled and not 100% tested. Min. - Max. 10 10 Unit pF pF MODE SELECTION CLE ALE CE# H L L WE# RE# WP# H X Mode Command Input Read Mode L H L H X H L L H H Address Input (4 clock) Command Input Write Mode L H L H H L L L H H Data Input L L L X Data Output H X X X X H X X X X X X H X X X X X H X X (1) X X X L X X H X X 0V/VCC(2) Note: 1. X can be VIL or VIH. 2. WP# should be biased to CMOS high or CMOS low for stand-by. Address Input (4 clock) During Read (Busy) During Program (Busy) During Erase (Busy) Write Protect Stand-by Program / Erase Characteristics (TA = – 40°C to 85°C, VCC=1.7V~1.95V) Parameter Symbol Min. Typ. Max. Unit Program Time tPROG 250 700 us Dummy Busy Time for Cache 3 700 us tCBSY Program Number of Partial Program Cycles 4 Cycle NOP in the Same Page Block Erase Time tBERS 2 10 ms Note: 1. Typical program time is defined as the time within which more than 50% of the whole pages are programmed at 1.8V VCC and 25°C temperature. 2. tPROG is the average program time of all pages. Users should be noted that the program time variation from page to page is possible. 3. Max. time of tCBSY depends on timing between internal program completion and data in. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 AC Timing Characteristics for Command / Address / Data Input Parameter Symbol Min. Max. Unit tCLS(1) CLE Setup Time 25 ns CLE Hold Time tCLH 10 ns CE# Setup Time tCS 35 ns CE# Hold Time tCH 10 ns WE# Pulse Width tWP 25 ns ALE Setup Time tALS(1) 25 ns ALE Hold Time tALH 10 ns Data Setup Time tDS(1) 20 ns Data Hold Time tDH 10 ns Write Cycle Time tWC 45 ns WE# High Hold Time tWH 15 ns ALE to Data Loading Time tADL(2) 100 ns Note: 1. The transition of the corresponding control pins must occur only once while WE# is held low. 2. tADL is the time from the WE# rising edge of final address cycle to the WE# rising edge of first data cycle. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 AC Characteristics for Operation Parameter Data Transfer from Cell to Register ALE to RE# Delay CLE to RE# Delay Ready to RE# Low RE# Pulse Width WE# High to Busy WP Low to WE# Low (disable mode) WP High to WE# Low (enable mode) Read Cycle Time RE# Access Time CE# Access Time RE# High to Output Hi-Z CE# High to Output Hi-Z CE# High to ALE or CLE Don’t Care RE# High to Output Hold RE# Low to Output Hold CE# High to Output Hold RE# High Hold Time Output Hi-Z to RE# Low RE# High to WE# Low WE# High to RE# Low Read Device Resetting Program Time during ... Erase Ready Cache Busy in Read Cache (following 31h and 3Fh) Symbol Min. Max. Unit tR tAR tCLR tRR tRP tWB 10 10 20 25 - 25 100 us ns ns ns ns ns tWW 100 - ns tRC tREA tCEA tRHZ tCHZ tCSD tRHOH tRLOH tCOH tREH tIR tRHW tWHR 45 0 15 5 15 15 0 100 60 - 30 45 100 30 5 10 500 5(1) ns ns ns ns ns ns ns ns ns ns ns ns ns us us us us - 30 us tRST tDCBSYR Note: 1. If reset command (FFh) is written at Ready state, the device goes into Busy for maximum 5us. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 NAND Flash Technical Notes Mask Out Initial Invalid Block(s) Initial invalid blocks are defined as blocks that contain one or more initial invalid bits whose reliability is not guaranteed by Eon. Information regarding the initial invalid block(s) is so called as the initial invalid block information. Devices with initial invalid block(s) have the same quality level as devices with all valid blocks and have the same AC and DC characteristics. An initial invalid block(s) does not affect the performance of valid block(s) because it is isolated from the bit line and the common source line by a select transistor. The system design must be able to mask out the initial invalid block(s) via address mapping. The 1st block, which is placed on 00h block address, is guaranteed to be a valid block up to 1K program/erase cycles with 1 bit/528 bytes ECC. Identifying Initial Invalid Block(s) and Block Replacement Management Unpredictable behavior may result from programming or erasing the defective blocks. The under figure illustrates an algorithm for searching factory-mapped defects, and the algorithm needs to be executed prior to any erase or program operations. A host controller has to scan blocks from block 0 to the last block using page read command and check the data at the column address of 0 or 2,047. If the read data is not FFh, the block is interpreted as an invalid block. The initial invalid block information is erasable, and which is impossible to be recovered once it has been erased. Therefore, the host controller must be able to recognize the initial invalid block information and to create a corresponding table to manage block replacement upon erase or program error when additional invalid blocks develop with Flash memory usage. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Algorithm for Bad Block Scanning This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Error in Write or Read Operation Within its lifetime, the additional invalid blocks may develop with NAND Flash memory. Refer to the qualification report for the actual data. The following possible failure modes should be considered to implement a highly reliable system. In the case of status read failure after erase or program, block replacement should be done. Because program status fail during a page program does not affect the data of the other pages in the same block, block replacement can be executed with a page-sized buffer by finding an erased empty block and reprogramming the current target data and copying the rest of the replaced block. In case of Read, ECC must be employed. To improve the efficiency of memory space, it is recommended that the read or verification failure due to single bit error be reclaimed by ECC without any block replacement. The additional block failure rate does not include those reclaimed blocks. Failure Write Read Detection and Countermeasure sequence Erase Failure Program Failure Single Bits Failure Read Status after Erase → Block Replacement Read Status after Program → Block Replacement Verify ECC → ECC Correction Note: 1. Error Correcting Code --> Hamming Code etc. 2. Example: 1bit correction / 528 Byte This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Program Flow Chart This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Erase Flow Chart This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Read Flow Chart START CMD 00h Write Address CMD 30h Read Data ECC Generation Reclaim the Error No Verify ECC Yes Page Read Completed This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Block Replacement Addressing for program operation Within a block, the pages must be programmed consecutively from the LSB (Least Significant Bit) page of the block to MSB (Most Significant Bit) pages of the block. Random page address programming is prohibited. In this case, the definition of LSB page is the LSB among the pages to be programmed. Therefore, LSB page doesn’t need to be page 0. Page 63 (64) (64) Page 63 : Page 31 : (32) (1) Page 31 : : Page 2 (3) Page 2 (3) Page 1 (2) Page 1 (32) Page 0 (1) Page 0 (2) Data register Data register From the LSB page to MSB page Ex.) Random page program (Prohibition) DATA IN: Data (1) DATA IN: Data (1) Data (64) This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. Data (64) ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 System Interface Using CE# don’t-care For an easier system interface, CE# may be inactive during the data-loading or serial access as shown below. The internal 2,112 bytes page registers are utilized as separate buffers for this operation and the system design gets more flexible. In addition, for voice or audio applications that use slow cycle time on the order of u-seconds, de-activating CE# during the data-loading and serial access would provide significant savings in power consumption. Program / Read Operation with “CE# not-care” Address Information DATA Data In / Out 2,112 bytes I/O I/Ox I/O0~ I/O7 Col. Add1 A0 ~ A7 This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ADDRESS Col. Add2 Row Add1 A8 ~ A11 A12 ~ A19 Row Add2 A20 ~ A27 ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Command Latch Cycle Address Latch Cycle Input Data Latch Cycle This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Serial access Cycle after Read (CLE = L, ALE = L, WE# = H) Note: 1. Dout transition is measured at ±200mV from steady state voltage at I/O with load. 2. tRHOH starts to be valid when frequency is lower than 20MHz. Serial access Cycle after Read (EDO Type CLE = L, ALE = L, WE# = H) Note: 1. Transition is measured at ±200mV from steady state voltage with load. 2. This parameter is sampled and not 100% tested. 3. tRLOH is valid when frequency is higher than 20MHz. 4. tRHOH starts to be valid when frequency is lower than 20MHz. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Status Read Cycle Read Operation Read Operation (Intercepted by CE#) This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Random Data Output In a Page Page Program Operation Note: tADL is the time from WE# rising edge of final address cycle to the WE# rising edge of first data cycle. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Page Program Operation with Random Data Input Note: tADL is the time from WE# rising edge of final address cycle to the WE# rising edge of first data cycle. Copy-Back Program Operation with Random Data Input This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Cache Program Operation Cache Read Operation CE# CLE ALE WE RE# I/Ox [7..0] R/B# CE# CLE ALE WE RE# I/Ox [7..0] R/B# This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Block Erase Operation Read ID Operation ID Definition Table ID Access command = 90h 1st Cycle (Maker Code) C8hh 1st Byte 2nd Byte 3rd Byte 4th Byte 5th Byte 2nd Cycle (Device Code) A1h 3rd Cycle 4th Cycle 5th Cycle 80h 15h 40h Description Maker Code Device Code Internal Chip Number, Cell Type, etc. Page Size, Block Size, etc. Plane Number, Plane Size, ECC Level This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 3rd ID Data Internal Chip Number Cell Type Number of Simultaneously Programmed Page Interleave Program Between multiple chips Cache Program Description 1 2 4 8 2 Level Cell 4 Level Cell 8 Level Cell 16 Level Cell 1 2 4 8 Not Support I/O7 I/O6 I/O5 I/O4 0 0 1 1 0 1 0 1 I/O5 I/O4 I/O3 I/O2 0 0 1 1 0 1 0 1 I/O3 I/O2 I/O1 0 0 1 1 I/O0 0 1 0 1 I/O1 0 0 1 1 I/O0 0 1 0 1 0 Support 1 Not Support Support 0 1 Description 1KB 2KB 4KB 8KB 8 16 64KB 128KB 256KB 512KB x8 x16 45ns Reserved Reserved Reserved I/O7 4th ID Data Page Size (w/o redundant area) Redundant Area Size (byte/512byte) Block Size (w/o redundant area) Organization Serial Access Minimum I/O6 0 1 0 0 1 1 0 1 0 1 0 1 0 0 1 1 0 1 0 1 5th ID Data This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 ECC Level Plane Number Plane Size (w/o redundant area) Reserved Description 1 bit ECC/512Byte 2 bit ECC/512Byte 4 bit ECC/512Byte Reserved 1 2 4 8 64Mb 128Mb 256Mb 512Mb 1Gb 2Gb 4Gb 8Gb Reserved I/O7 I/O6 0 0 0 0 1 1 1 1 I/O5 0 0 1 1 0 0 1 1 I/O4 I/O3 I/O2 0 0 1 1 0 1 0 1 I/O1 0 0 1 1 I/O0 0 1 0 1 0 1 0 1 0 1 0 1 0 DEVICE OPERATION Page Read Upon initial device power up, the device defaults to Read mode. This operation is also initiated by writing 00h command, four-cycle address, and 30h command. After initial power up, the 00h command can be skipped because it has been latched in the command register. The 2,112Byte of data on a page are transferred to cache registers via data registers within 25us (tR). Host controller can detect the completion of this data transfer by checking the R/B# output. Once data in the selected page have been loaded into cache registers, each Byte can be read out in 45ns cycle time by continuously pulsing RE#. The repetitive high-to-low transitions of RE# clock signal make the device output data starting from the designated column address to the last column address. The device can output data at a random column address instead of sequential column address by using the Random Data Outputcommand. Random Data Output command can be executed multiple times in a page. After power up, device is in read mode so 00h command cycle is not necessary to start a read operation. A page read sequence is illustrated in under figure, where column address, page address are placed in between commands 00h and 30h. After tR read time, the R/B# de-asserts to ready state. Read Status command (70h) can be issued right after 30h. Host controller can toggle RE to access data starting with the designated column address and their successive bytes. Read Operation This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Random Data Output In a Page This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Page Program The device is programmed based on the unit of a page, and consecutive partial page programming on one page without intervening erase operation is strictly prohibited. Addressing of page program operations within a block should be in sequential order. A complete page program cycle consists of a serial data input cycle in which up to 2,112 byte of data can be loaded into data register via cache register, followed by a programming period during which the loaded data are programmed into the designated memory cells. The serial data input cycle begins with the Serial Data Input command (80h), followed by a four-cycle address input and then serial data loading. The bytes not to be programmed on the page do not need to be loaded. The column address for the next data can be changed to the address follows Random Data Input command (85h). Random Data Input command may be repeated multiple times in a page. The Page Program Confirm command (10h) starts the programming process. Writing 10h alone without entering data will not initiate the programming process. The internal write engine automatically executes the corresponding algorithm and controls timing for programming and verification, thereby freeing the host controller for other tasks. Once the program process starts, the host controller can detect the completion of a program cycle by monitoring the R/B# output or reading the Status bit (I/O6) using the Read Status command. Only Read Status and Reset commands are valid during programming. When the Page Program operation is completed, the host controller can check the Status bit (I/O0) to see if the Page Program operation is successfully done. The command register remains the Read Status mode unless another valid command is written to it. A page program sequence is illustrated in under figure, where column address, page address, and data input are placed in between 80h and 10h. After tPROG program time, the R/B# de-asserts to ready state. Read Status command (70h) can be issued right after 10h. Program & Read Status Operation Random Data Input In a page This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Cache Program Cache Program is an extension of Page Program, which is executed with 2,112 byte data registers, and is available only within a block. Since the device has 1 page of cache memory, serial data input may be executed while data stored in data register are programmed into memory cell. After writing the first set of data up to 2,112 bytes into the selected cache registers, Cache Program command (15h) instead of actual Page Program (10h) is inputted to make cache registers free and to start internal program operation. To transfer data from cache registers to data registers, the device remains in Busy state for a short period of time (tCBSY) and has its cache registers ready for the next data-input while the internal programming gets started with the data loaded into data registers. Read Status command (70h) may be issued to find out when cache registers become ready by polling the Cache-Busy status bit (I/O6). Pass/fail status of only the previous page is available upon the return to Ready state. When the next set of data is inputted with the Cache Program command, tCBSY is affected by the progress of pending internal programming. The programming of the cache registers is initiated only when the pending program cycle is finished and the data registers are available for the transfer of data from cache registers. The status bit (I/O5) for internal Ready/Busy may be polled to identity the completion of internal programming. If the system monitors the progress of programming only with R/B#, the last page of the target programming sequence must be programmed with actual Page Program command (10h). Cache Program (available only within a block) Note: 1. Since programming the last page does not employ caching, the program time has to be that of Page Program. However, if the previous program cycle with the cache data has not finished, the actual program cycle of the last page is initiated only after completion of the previous cycle, which can be expressed as the following formula. 2. tPROG = Program time for the last page + Program time for the (last-1)th page – (Program command cycle time + Last page data loading time) This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Copy-Back Program Copy-Back Program is designed to efficiently copy data stored in memory cells without time-consuming data reloading when there is no bit error detected in the stored data. The benefit is particularly obvious when a portion of a block is updated and the rest of the block needs to be copied to a newly assigned empty block. Copy-Back operation is a sequential execution of Read for Copy-Back and of Copy-Back Program with Destination address. A Read for Copy-Back operation with “35h” command and the Source address moves the whole 2,112byte data into the internal buffer. The host controller can detect bit errors by sequentially reading the data output. Copy-Back Program is initiated by issuing Page-Copy Data-Input command (85h) with Destination address. If data modification is necessary to correct bit errors and to avoid error propagation, data can be reloaded after the Destination address. Data modification can be repeated multiple times as shown in under figure. Actual programming operation begins when Program Confirm command (10h) is issued. Once the program process starts, the Read Status command (70h) may be entered to read the status register. The host controller can detect the completion of a program cycle by monitoring the R/B# output, or the Status bit (I/O6) of the Status Register. When the Copy-Back Program is complete, the Status Bit (I/O0) may be checked. The command register remains Read Status mode until another valid command is written to it. Page Copy-Back Program Operation Page Copy-Back Program Operation with Random Data Input This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Block Erase The block-based Erase operation is initiated by an Erase Setup command (60h), followed by a two-cycle row address, in which only Plane address and Block address are valid while Page address is ignored. The Erase Confirm command (D0h) following the row address starts the internal erasing process. The two-step command sequence is designed to prevent memory content from being inadvertently changed by external noise. At the rising edge of WE# after the Erase Confirm command input, the internal control logic handles erase and erase-verify. When the erase operation is completed, the host controller can check Status bit (I/O0) to see if the erase operation is successfully done. The under figure illustrates a block erase sequence, and the address input (the first page address of the selected block) is placed in between commands 60h and D0h. After tBERASE erase time, the R/B# de-asserts to ready state. Read Status command (70h) can be issued right after D0h to check the execution status of erase operation. Block Erase Operation Read Status A status register on the device is used to check whether program or erase operation is completed and whether the operation is completed successfully. After writing 70h command to the command register, a read cycle outputs the content of the status register to I/O pins on the falling edge of CE or RE , whichever occurs last. These two commands allow the system to poll the progress of each device in multiple memory connections even when R/B pins are common-wired. RE or CE does not need to toggle for status change. The command register remains in Read Status mode unless other commands are issued to it. Therefore, if the status register is read during a random read cycle, a read command (00h) is needed to start read cycles. Status Register Definition for 70h Command I/O Page Program Block Erase Read Cache Read I/O0 Pass / Fail Pass / Fail NA NA I/O1 I/O2 I/O3 I/O4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA I/O5 NA NA Ready / Busy True Ready / Busy I/O6 Ready / Busy Ready / Busy Ready / Busy Ready / Busy I/O7 Write Protect Write Protect Write Protect Write Protect This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. Definition Pass: 0 Fail: 1 Don’t cared Don’t cared Don’t cared Don’t cared Busy: 0 Ready: 1 Busy: 0 Ready: 1 Protected: 0 Not Protected: 1 ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Read ID The device contains a product identification mode, initiated by writing 90h to the command register, followed by an address input of 00h. Four read cycles sequentially output the manufacturer code (C8h), and the device code and 3rd, 4th and 5th cycle ID respectively. The command register remains in Read ID mode until further commands are issued to it. Read ID Operation ID Definition Table Maker Code Device Code 3rd Cycle 4th Cycle 5th Cycle C8h A1h 80h 15h 40h RESET The device offers a reset feature, executed by writing FFh to the command register. When the device is in Busy State during random read, program or erase mode, the reset operation will abort these operations. The contents of memory cells being altered are no longer valid, as the data will be partially programmed or erased. The command register is cleared to wait for the next command, and the Status Register is cleared to value C0h when WP# is high. If the device is already in reset state a new reset command will be accepted by the command register. The R/B# pin changes to low for tRST after the Reset command is written. Refer to Figure below. Reset Operation Device Status Table Operation mode After Power-up 00h Command is latched This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. After Reset Waiting for next command ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Cache Read Cache Read is an extension of Page Read, and is available only within a block. The normal Page Read command (00h-30h) is always issued before invoking Cache Read. After issuing the Cache Read command (31h), read data of the designated page (page N) are transferred from data registers to cache registers in a short time period of tDCBSYR, and then data of the next page (page N+1) is transferred to data registers while the data in the cache registers are being read out. Host controller can retrieve continuous data and achieve fast read performance by iterating Cache Read operation. The Read Start for Last Page Cache Read command (3Fh) is used to complete data transfer from memory cells to data registers. Read Operation with Cache Read CLE CE# WE ALE RE# I/Ox R/B# CLE CE# WE ALE RE# I/Ox R/B# This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 READY/BUSY# The device has an R/B# output that provides a hardware method of indicating the completion of a page program, erase and random read completion. The R/B# pin is normally high but transitions to low after program or erase command is written to the command register or random read is started after address loading. It returns to high when the internal controller has finished the operation. The pin is an opendrain driver thereby allowing two or more R/B# outputs to be Or-tied. Because pull-up resistor value is related to tr (R/B#) and current drain during busy (ibusy), an appropriate value can be obtained with the following reference chart. Its value can be determined by the following guidance. Ready/ Busy# Pin Electrical Specifications R/B# RP value guidance 1.85V Rp (min) 3 mA where IL is the sum of the input currents of all devices tied to the R/ B# pin. RP (max) is determined by maximum permissible limit of tr This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Data Protection & Power-up sequence The timing sequence shown in the figure below is necessary for the power-on/off sequence. The device internal initialization starts after the power supply reaches an appropriate level in the power on sequence. During the initialization the device R/B# signal indicates the Busy state as shown in the figure below. In this time period, the acceptable commands are 70h. The WP# signal is useful for protecting against data corruption at power on/off. AC Waveforms for Power Transition Write Protect Operation Enabling WP during erase and program busy is prohibited. The erase and program operations are enabled and disabled as follows: Enable Programming: NOTE: WP# keeps “High” until programming finish. This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Disable Programming: Enable Erasing: NOTE: WP keeps “High” until erasing finish. Disable Erasing: This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 One-Time Programmable (OTP) Operations This flash device offers one-time programmable memory area. Thirty full pages of OTP data are available on the device, and the entire range is guaranteed to be good. The OTP area is accessible only through the OTP commands. The OTP area leaves the factory in an unwritten state. The OTP area cannot be erased, whether it is protected or not. Protecting the OTP area prevents further programming of that area. The OTP area is only accessible while in OTP operation mode. To set the device to OTP operation mode, issue the Set Feature (EFh-90h-01h) command. When the device is in OTP operation mode, subsequent Read and/or Page Program are applied to the OTP area. When you want to come back to normal operation, you need to use EFh-90h-00h for OTP mode release. Otherwise, device will stay in OTP mode. To program an OTP page, issue the Serial Data Input (80h) command followed by 4 address cycles. The first two address cycles are column address. For the third cycle, select a page in the range of 00h through 1Dh. The fourth cycle is fixed at 00h. Next, up to 2,112 bytes of data can be loaded into data register. The bytes other than those to be programmed do not need to be loaded. This device supports Random Data Input (85h) command, which can be operated multiple times in a page. The column address for the next data to be entered may be changed to the address follows the Random Data Input command. The Page Program confirm (10h) command initiates the programming process. The internal control logic automatically executes the programming algorithm, timing and verification. Please note that no partial-page program is allowed in the OTP area. In addition, the OTP pages must be programmed in the ascending order. A programmed OTP page will be automatically protected. Similarly, to read data from an OTP page, set the device to OTP operation mode and then issue the Read (00h-30h) command. The device may output random data (not in sequential order) in a page by writing Random Data Output (05h-E0h) command, which can be operated multiple times in a page. The column address for the next data to be output may be changed to the address follows the Random Data Output command. All pages in the OTP area will be protected simultaneously by issuing the Set Feature (EFh-90h-03h) command to set the device to OTP protection mode. After the OTP area is protected, no page in the area is programmable and the whole area cannot be unprotected. The Read Status (70h) command is the only valid command for reading status in OTP operation mode. OTP Modes and Commands Set feature OTP Operation mode OTP Protection mode OTP Release mode Read Page Program Program Protect Leave OTP mode EFh-90h-01h EFh-90h-01h EFh-90h-03h EFh-90h-00h Command 00h-30h 80h-10h 80h-10h OTP Area Details Description Number of OTP pages OTP page address Number of partial page programs for each page in the OTP area This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. Value 30 01h – 1Eh 1 ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 PACKAGE DIMENSION 63L 9x11x1.0mm BGA, pitch: 0.8mm, ball: 0.45mm This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21 EN27SN1G08 Revisions List Revision No Description Date A Initial Release Remove 48-pin TSOP package option and Commercial (0℃ to +70℃) Temperature option. 2012/03/30 B This Data Sheet may be revised by subsequent versions or modifications due to changes in technical specifications. 2012/05/21 ©2011 Eon Silicon Solution, Inc., www.eonssi.com Rev. B, Issue Date: 2012/05/21