Comparison of MX25L6435E and MX25L6445E APPLICATION NOTE 1. Introduction This application note compares MX25L6435E and MX25L6445E. The document does not provide detailed information on individual device, but highlights the similarities and differences between them. The comparison covers the general features, performance, command sets and device ID. MX25L6435E supports Dual Output mode (1I/2O: Single input / Dual output) and Quad Output mode (1I/4O: Single input / Quad output). MX25L6435E supports T/B (Top/Bottom) bit new function. However, MX25L6435E does not support DTR mode. The information provided is based on the data available at the time. MX25L6435E and MX25L6445E datasheets may override this application note if there is a different description for the same specification in the datasheets. Please refer to the contents and comparison tables below for more details. Publication Number: AN137V1 1
2. General Features 2-1. Feature Comparison MX25L6435E has a new T/B (Top/Bottom) bit configuration register. By the control of T/B bit, Block protect area by BP bit can be started from Top or Bottom of the memory array. The SFDP is one of the new features for both MX25L6435E and MX25L6445E, which provides a consistent method of describing the features and functional capabilities of this Serial Flash device. User or host system can read the SFDP to understand the capabilities of the MX25L6435E and MX25L6445E for more efficient control. SFDP is a standard of JEDEC, JESD216 for serial flash. It is similar to JEDEC Standard, JESD68 on CFI (Common Flash Interface) for Parallel Flash. For the differences between these products, please check the comparison tables below for details. Publication Number: AN137V1 2
Table 2-1. Feature Comparison Feature MX25L6435E MX25L6445E Voltage 2.7~3.6 V 2.7~3.6 V Interface x1, x2, x4 x1, x2, x4 Package 16-SOP (300mil) 8-SOP(209mil) 8-WSON(6x5mm) 16-SOP(300mil) 8-SOP(209mil) 8-WSON(8x6mm) Operation Temperature -40~85 C -40~85 C Sector / Block 4KB / 32KB or 64KB 4KB / 32KB or 64KB Clock Rate (max.) Fast Read (x 1I/O) 104MHz 104MHz Read 50MHz 50MHz DREAD (Dual Output) 70MHz -- 2READ(x2 I/O) 86MHz 70MHz 4READ(x4 I/O) Up to 104MHz 70MHz 1DDRRD -- 50MHz 2DDRRD -- 50MHz 4DDRRD -- 50MHz 4PP 86MHz 20MHz Configurable Dummy Cycle Yes. for 4READ mode only No DTR mode -- Yes CP Mode Yes Yes Data Protection Secured OTP 4Kbits 4Kbits Block Protection BP3~BP0 BP3~BP0 T/B (Top/Bottom) bit Yes -- Individual Protection Individual Sector/Block Protect Individual Sector/Block Protect HOLD# Yes No SFDP Yes Yes Publication Number: AN137V1 3
2-2. Performance Comparison Table below is the comparison of new product and the former product. Table 2-2: Performance Comparison Performance MX25L6435E MX25L6445E Clock High/Low Time Program Time tch tcl Byte 12us(typ.) ; 300us(max.) 9us(typ.) ; 300us(max.) Page 1.4ms(typ.) ; 5ms(max.) 1.4ms(typ.) ; 5ms(max.) Sector 60ms(typ.) 60ms(typ.) Erase Time Block 32KB:0.5s(typ.); 2s(max.) 64KB:0.7s(typ.); 2s(max.) 32KB:0.5s(typ.); 2s(max.) 64KB:0.7s(typ.); 2s(max.) Chip 50s (typ.) / 80s(max.) 50s (typ.) / 80s(max.) CS# Active Setup Time tslch 5ns(min.) 5ns(min.) CS# Not Active Setup Time tshch 5ns(min.) 5ns(min.) CS# Active Hold Time tchsh 5ns(min.) 5ns(min.) CS# Not Active Hold Time tchsl 5ns(min.) 5ns(min.) CS# Deselect Time tshsl Read=15ns(min.) ; Write=50ns(min.) Read=15ns(min.) ; Write=50ns(min.) VCC Standby ISB1 40uA(max.) 50uA(max.) Deep Power Down ISB2 20uA(max.) 20uA(max.) Active Current (max.) ICC1 104MHz: 35mA(4/IO) 19mA(1/IO) 86MHz: 25mA(4/IO) 20mA(2/IO) 33MHz: 10mA 104MHz: 19mA 66MHz: 15mA 33MHz: 10mA ICC2 25mA 25mA ICC3 20mA 20mA ICC4 25mA 25mA ICC5 25mA 20mA Publication Number: AN137V1 4
3. Command Set Comparison User has to check the differences in detail by comparison table below. For the details of command sets function, please refer to the datasheet of each product. Table 3. Command Set Comparison Command MX25L6435E MX25L6445E WREN 06h 06h Write WRDI 04h 04h WRSR 01h 01h RDID 9Fh 9Fh RDSR 05h 05h READ 03h 03h Fast Read 0Bh 0Bh 2READ BBh BBh 4READ EBh EBh FASTDTRD -- 0Dh Read 2DTRD -- BDh 4DTRD -- EDh DREAD 3Bh -- QREAD 6Bh -- RES Abh Abh REMS 90h 90h REMS2 EFh EFh REMS4 DFh DFh REMS4D -- CFh SE 20h 20h Erase BE D8h D8h BE32K 52h 52h CE 60h or C7h 60h or C7h 4PP 38h 38h Program PP 02h 02h CP ADh ADh Security Register RDSCUR 2Bh 2Bh WRSCUR 2Fh 2Fh Secured OTP ENSO B1h B1h EXSO C1h C1h SO output ESRY 70h 70h DSRY 80h 80h Deep Power Down DP B9h B9h RDP ABh ABh SBLK 36h 36h Block Lock SBULK 39h 39h GBLK 7Eh 7Eh GBULK 98h 98h Clear SR CLSR -- 30h High Performance HPM -- A3h Block Protect Read RDBLOCK 3Ch 3Ch Publication Number: AN137V1 5
4. Device ID Code Comparison The following table shows that the Manufacturer and Device IDs have not changed. Table 4-1: ID Code Comparison Command Type MX25L6435E MX25L6445E RDID Command RES Command REMS M ID Type Density M ID Type Density C2 20 17 C2 20 17 E ID E ID 16 16 M ID Device ID M ID Device ID C2 16 C2 16 5. References The following datasheets were used for preparing this comparison note: Datasheet Location Date Issued Versions MX25L6435E Macronix Website Feb. 2012 0.02 MX25L6445E Macronix Website Jul. 2010 1.4 For more functional and parametric specifications, please refer to the datasheet on the Macronix Website at http://www.macronix.com/ and go to: Products/Flash Memory/Serial Flash. Publication Number: AN137V1 6
Except for customized products which have been expressly identified in the applicable agreement, Macronix's products are designed, developed, and/or manufactured for ordinary business, industrial, personal, and/or household applications only, and not for use in any applications which may, directly or indirectly, cause death, personal injury, or severe property damages. In the event Macronix products are used in contradicted to their target usage above, the buyer shall take any and all actions to ensure said Macronix's product qualified for its actual use in accordance with the applicable laws and regulations; and Macronix as well as it s suppliers and/or distributors shall be released from any and all liability arisen therefrom. Copyright Macronix International Co., Ltd. 2012. All rights reserved, including the trademarks and tradename thereof, such as Macronix, MXIC, MXIC Logo, MX Logo, Integrated Solutions Provider, NBit, NBiit, Macronix NBit, eliteflash, XtraROM, Phines, KH Logo, BE-SONOS, KSMC, Kingtech, MXSMIO, Macronix vee, Macronix MAP, Rich Audio, Rich Book, Rich TV, and FitCAM. The names and brands of other companies are for identification purposes only and may be claimed as the property of the respective companies. For the contact and order information, please visit Macronix s Web site at: http://www.macronix.com MACRONIX INTERNATIONAL CO., LTD. reserves the right to change product and specifications without notice. Publication Number: AN137V1 7