APPLICATION NOTE Comparison of Macronix MX25U Series with MX25R Serial NOR Flash (For 16Mb/32Mb/64Mb) 1. Introduction This application note compares Macronix 16Mb, 32Mb and 64Mb, 1.8V/Wide Range VCC Serial NOR Flash. Generally, the MX25R1635F/3235F/6435F are similar with MX25U1635F/3235F/6435F and MX25U1635E/3235E/6435E as they are pin and command compatible with the basic Read/Program/Erase commands. MX25R1635F/3235F/6435F provides wider voltage range and lower power consumption. The comparison covers the general features, performance, command codes, and other differences. The document does not provide detailed information on individual devices, but highlights major differences. The information in this document is based on the latest datasheets listed in Section "9. Reference". Newer versions of the datasheets may override the contents of this document. 2. General Features Macronix 16Mb/32Mb/64Mb, 1.8V/Wide Range VCC serial flash families have similar features and functions as shown in the table below. MX25R1635F/3235F/6435F provide wider voltage range and 4Kb x 2 of Secured OTP size. For Block Protection, MX25R1635F/3235F/6435F and MX25U1635F/3235F/6435F and MX25U1635E/3235E/6435E can all use BP bit to protect content in memory. But MX25R series have T/B bit which make slight different and easier to protect than MX25U series. Table 2-1: Key Features Comparison (16Mb) Part Name Operation Voltage MX25R1635F MX25U1635F MX25U1635E 1.65-3.6V 1.65-2V 1.65-2V Sector Size 4KB 4KB 4KB Block Size 32KB/64KB 32KB/64KB 32KB/64KB Page Size 256B 256B 256B 1.6 1.0 1.0 tVSL (Min.) 800us 800us 300us Endurance 100K (Min.) 100K (Typ.) 100K (Typ.) 4Kb x 2 4Kb 4Kb TB, BP3 - BP0 BP3 - BP0 BP3 - BP0 MX25R3235F MX25U3235F MX25U3235E 1.65-3.6V 1.65-2V 1.65-2V Sector Size 4KB 4KB 4KB Block Size 32KB/64KB 32KB/64KB 32KB/64KB Page Size 256B 256B 256B 1.6 1.0 1.0 tVSL (Min.) 800us 800us 300us Endurance 100K (Min.) 100K (Typ.) 100K (Typ.) 4Kb x 2 4Kb 4Kb TB, BP3 - BP0 BP3 - BP0 BP3 - BP0 SFDP Secured OTP Size BP Bit Block Protection Table 2-2: Key Features Comparison (32Mb) Part Name Operation Voltage SFDP Secured OTP Size BP Bit Block Protection P/N: AN0418 1 REV. 1, DEC. 29, 2015 APPLICATION NOTE Comparison of Macronix MX25U Series with MX25R Serial NOR Flash (For 16Mb/32Mb/64Mb) Table 2-3: Key Features Comparison (64Mb) Part Name MX25R6435F MX25U6435F MX25U6435E 1.65-3.6V 1.65-2V 1.65-2V Sector Size 4KB 4KB 4KB Block Size 32KB/64KB 32KB/64KB 32KB/64KB Page Size 256B 256B 256B 1.6 1.0 1.0 tVSL (Min.) 800us 800us 300us Endurance 100K (Min.) 100K (Typ.) 100K (Typ.) 4Kb x 2 4Kb 4Kb TB, BP3 - BP0 BP3 - BP0 BP3 - BP0 Operation Voltage SFDP Secured OTP Size BP Bit Block Protection 3. Electrical Performance The MX25R1635F/3235F/6435F are capable of similar performance with MX25U1635F/3235F/6435F and MX25U1635E/3235E/6435E. Table 3-1-1: Operation Frequency (16Mb) Part Name 1-1-1 (READ) 1-1-1 (FAST_READ) High Performance Mode 1-1-1 (FAST_READ) Ultra Low Power Mode 1-1-2 (DREAD) High Performance Mode 1-1-2 (DREAD) Ultra Low Power Mode 1-2-2 (2READ) High Performance Mode 1-2-2 (2READ) Ultra Low Power Mode 1-1-4 (QREAD) High Performance Mode 1-1-4 (QREAD) Ultra Low Power Mode 1-4-4 (4READ) High Performance Mode 1-4-4 (4READ) Ultra Low Power Mode P/N: AN0418 MX25R1635F MX25U1635F MX25U1635E 33MHz 50MHz 33MHz 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 84MHz 84MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz 16MHz (4Mb boundary) -- -- 2 REV. 1, DEC. 29, 2015 APPLICATION NOTE Table 3-1-2: Operation Frequency (32Mb) Part Name 1-1-1 (READ) 1-1-1 (FAST_READ) High Performance Mode 1-1-1 (FAST_READ) Ultra Low Power Mode 1-1-2 (DREAD) High Performance Mode 1-1-2 (DREAD) Ultra Low Power Mode 1-2-2 (2READ) High Performance Mode 1-2-2 (2READ) Ultra Low Power Mode 1-1-4 (QREAD) High Performance Mode 1-1-4 (QREAD) Ultra Low Power Mode 1-4-4 (4READ) High Performance Mode 1-4-4 (4READ) Ultra Low Power Mode MX25R3235F MX25U3235F MX25U3235E 33MHz 50MHz 33MHz 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 84MHz 84MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz 16MHz (4Mb boundary) -- -- MX25R6435F MX25U6435F MX25U6435E 33MHz 50MHz 33MHz 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 84MHz 84MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz -- -- 80MHz 104MHz 104MHz 8MHz 16MHz (4Mb boundary) -- -- Table 3-1-3: Operation Frequency (64Mb) Part Name 1-1-1 (READ) 1-1-1 (FAST_READ) High Performance Mode 1-1-1 (FAST_READ) Ultra Low Power Mode 1-1-2 (DREAD) High Performance Mode 1-1-2 (DREAD) Ultra Low Power Mode 1-2-2 (2READ) High Performance Mode 1-2-2 (2READ) Ultra Low Power Mode 1-1-4 (QREAD) High Performance Mode 1-1-4 (QREAD) Ultra Low Power Mode 1-4-4 (4READ) High Performance Mode 1-4-4 (4READ) Ultra Low Power Mode P/N: AN0418 3 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 3-2-1: AC Characteristics (16Mb) P/N: AN0418 Part Name Condition MX25R1635F MX25U1635F MX25U1635E Page Program Time High Performance Mode Typ./Max. 0.85ms/4ms 0.5ms/1.5ms 1.2ms/3ms Page Program Time Ultra Low Power Mode Typ./Max. 3.2ms/10ms -- -- Byte Program Time High Performance Mode Typ./Max. 32us/100us 12us/30us 10us/30us Byte Program Time Ultra Low Power Mode Typ./Max. 40us/100us -- -- Sector Erase Time High Performance Mode Typ./Max. 40ms/240ms 35ms/200ms 45ms/200ms Sector Erase Time Ultra Low Power Mode Typ./Max. 58ms/240ms -- -- Block Erase (32KB) High Performance Mode Typ./Max. 0.24s/1.5s 0.2s/1s 0.25s/1s Block Erase (32KB) Ultra Low Power Mode Typ./Max. 0.4s/1.75s -- -- Block Erase (64KB) High Performance Mode Typ./Max. 0.48s/3s 0.35s/2s 0.5s/2s Block Erase (64KB) Ultra Low Power Mode Typ./Max. 0.8s/3.5s -- -- Chip Erase Time High Performance Mode Typ./Max. 13s/38s 10s/20s 9s/20s Chip Erase Time Ultra Low Power Mode Typ./Max. 30s/60s -- -- Write Status Register Cycle Time High Performance Mode Max. 30ms 40ms 40ms Write Status Register Cycle Time Ultra Low Power Mode Max. 40ms -- -- tCLQV High Performance Mode 30pf/15pf (Max.) 8ns/6ns 8ns/6ns 8ns/6ns tCLQV Ultra Low Power Mode 30pf/15pf (Max.) 12ns/10ns -- -- 4 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 3-2-2: AC Characteristics (32Mb) P/N: AN0418 Part Name Condition MX25R3235F MX25U3235F MX25U3235E Page Program Time High Performance Mode Typ./Max. 0.85ms/4ms 0.5ms/3ms 1.2ms/3ms Page Program Time Ultra Low Power Mode Typ./Max. 3.2ms/10ms -- -- Byte Program Time High Performance Mode Typ./Max. 32us/100us 12us/30us 10us/30us Byte Program Time Ultra Low Power Mode Typ./Max. 40us/100us -- -- Sector Erase Time High Performance Mode Typ./Max. 40ms/240ms 35ms/200ms 45ms/200ms Sector Erase Time Ultra Low Power Mode Typ./Max. 58ms/240ms -- -- Block Erase (32KB) High Performance Mode Typ./Max. 0.24s/1.5s 0.2s/1s 0.25s/1s Block Erase (32KB) Ultra Low Power Mode Typ./Max. 0.4s/1.75s -- -- Block Erase (64KB) High Performance Mode Typ./Max. 0.48s/3s 0.35s/2s 0.5s/2s Block Erase (64KB) Ultra Low Power Mode Typ./Max. 0.8s/3.5s -- -- Chip Erase Time High Performance Mode Typ./Max. 26s/76s 25s/50s 18s/40s Chip Erase Time Ultra Low Power Mode Typ./Max. 60s/120s -- -- Write Status Register Cycle Time High Performance Mode Max. 30ms 40ms 40ms Write Status Register Cycle Time Ultra Low Power Mode Max. 40ms -- -- tCLQV High Performance Mode 30pf/15pf (Max.) 8ns/6ns 8ns/6ns 8ns/6ns tCLQV Ultra Low Power Mode 30pf/15pf (Max.) 12ns/10ns -- -- 5 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 3-2-3: AC Characteristics (64Mb) P/N: AN0418 Part Name Condition MX25R6435F MX25U6435F MX25U6435E Page Program Time High Performance Mode Typ./Max. 0.85ms/4ms 0.5ms/3ms 1.2ms/3ms Page Program Time Ultra Low Power Mode Typ./Max. 3.2ms/10ms -- -- Byte Program Time High Performance Mode Typ./Max. 32us/100us 12us/30us 10us/30us Byte Program Time Ultra Low Power Mode Typ./Max. 40us/100us -- -- Sector Erase Time High Performance Mode Typ./Max. 40ms/240ms 35ms/200ms 45ms/200ms Sector Erase Time Ultra Low Power Mode Typ./Max. 58ms/240ms -- -- Block Erase (32KB) High Performance Mode Typ./Max. 0.24s/1.5s 0.2s/1s 0.25s/1s Block Erase (32KB) Ultra Low Power Mode Typ./Max. 0.4s/1.75s -- -- Block Erase (64KB) High Performance Mode Typ./Max. 0.48s/3s 0.35s/2s 0.5s/2s Block Erase (64KB) Ultra Low Power Mode Typ./Max. 0.8s/3.5s -- -- Chip Erase Time High Performance Mode Typ./Max. 50s/150s 50s/75s 36s/80s Chip Erase Time Ultra Low Power Mode Typ./Max. 120s/240s -- -- Write Status Register Cycle Time High Performance Mode Max. 30ms 40ms 40ms Write Status Register Cycle Time Ultra Low Power Mode Max. 40ms -- -- tCLQV High Performance Mode 30pf/15pf (Max.) 8ns/6ns 8ns/6ns 8ns/6ns tCLQV Ultra Low Power Mode 30pf/15pf (Max.) 12ns/10ns -- -- 6 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 3-3-1: DC Characteristics (16Mb) P/N: AN0418 Part Name Condition MX25R1635F MX25U1635F MX25U1635E Standby Current (ISB1) High Performance Mode Typ./Max. 9uA/50uA 10uA/35uA 25uA/80uA Standby Current (ISB1) Ultra Low Power Mode Typ./Max. 5uA/24uA -- -- Deep Power Down Current (ISB2) Typ./Max. 0.1uA/0.5uA 1.5uA/15uA 2uA/15uA Read Current (4xI/O) (ICC1) High Performance Mode Typ./Max 6.5mA/9mA --/20mA --/20mA Read Current (4xI/O) (ICC1) Ultra Low Power Mode Typ./Max 2.8mA/4.5mA -- -- Program Current (ICC2) High Performance Mode Typ./Max. 5.8mA/10mA 20mA/25mA 20mA/25mA Program Current (ICC2) Ultra Low Power Mode Typ./Max. 3.5mA/6mA -- -- Icc Write Status Reg. Current(ICC3) High Performance Mode Typ./Max. 3.5mA/10mA 10mA/20mA 10mA/15mA Icc Write Status Reg. Current(ICC3) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- Sector Erase Current (ICC4) High Performance Mode Typ./Max. 3.5mA/10mA 18mA/25mA 20mA/25mA Sector Erase Current (ICC4) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- Chip Erase Current (ICC5) High Performance Mode Typ./Max. 4mA/10mA 20mA/25mA 20mA/25mA Chip Erase Current (ICC5) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- 7 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 3-3-2: DC Characteristics (32Mb) P/N: AN0418 Part Name Condition MX25R3235F MX25U3235F MX25U3235E Standby Current (ISB1) High Performance Mode Typ./Max. 9uA/50uA 10uA/50uA 25uA/80uA Standby Current (ISB1) Ultra Low Power Mode Typ./Max. 5uA/24uA -- -- Deep Power Down Current (ISB2) Typ./Max. 0.1uA/0.5uA 1.5uA/15uA 2uA/15uA Read Current (4xI/O) (ICC1) High Performance Mode Typ./Max 6.5mA/9mA --/20mA --/20mA Read Current (4xI/O) (ICC1) Ultra Low Power Mode Typ./Max 2.8mA/4.5mA -- -- Program Current (ICC2) High Performance Mode Typ./Max. 5.8mA/10mA 20mA/25mA 20mA/25mA Program Current (ICC2) Ultra Low Power Mode Typ./Max. 3.5mA/6mA -- -- Icc Write Status Reg. Current (ICC3) High Performance Mode Typ./Max. 3.5mA/10mA 10mA/20mA 10mA/15mA Icc Write Status Reg. Current (ICC3) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- Sector Erase Current (ICC4) High Performance Mode Typ./Max. 3.5mA/10mA 18mA/25mA 20mA/25mA Sector Erase Current (ICC4) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- Chip Erase Current (ICC5) High Performance Mode Typ./Max. 4mA/10mA 20mA/25mA 20mA/25mA Chip Erase Current (ICC5) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- 8 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 3-3-3: DC Characteristics (64Mb) P/N: AN0418 Part Name Condition MX25R6435F MX25U6435F MX25U6435E Standby Current (ISB1) High Performance Mode Typ./Max. 9uA/50uA 15uA/50uA 25uA/80uA Standby Current (ISB1) Ultra Low Power Mode Typ./Max. 5uA/24uA -- -- Deep Power Down Current (ISB2) Typ./Max. 0.1uA/0.5uA 1.5/15uA 2uA/15uA Read Current (4xI/O) (ICC1) High Performance Mode Typ./Max 6.5mA/9mA --/20mA --/20mA Read Current (4xI/O) (ICC1) Ultra Low Power Mode Typ./Max 2.8mA/4.5mA -- -- Program Current (ICC2) High Performance Mode Typ./Max. 5.8mA/10mA 20mA/25mA 20mA/25mA Program Current (ICC2) Ultra Low Power Mode Typ./Max. 3.5mA/6mA -- -- Icc Write Status Reg. Current (ICC3) High Performance Mode Typ./Max. 3.5mA/10mA 10mA/20mA 10mA/20mA Icc Write Status Reg. Current (ICC3) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- Sector Erase Current (ICC4) High Performance Mode Typ./Max. 3.5mA/10mA 18mA/25mA 20mA/25mA Sector Erase Current (ICC4) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- Chip Erase Current (ICC5) High Performance Mode Typ./Max. 4mA/10mA 20mA/25mA 20mA/25mA Chip Erase Current (ICC5) Ultra Low Power Mode Typ./Max. 3.1mA/6mA -- -- 9 REV. 1, DEC. 30, 2015 APPLICATION NOTE 4. Command Set Command Set Table shows basic Read, Program, and Erase commands are supported by the MX25R1635F/3235F/6435F with the similar command codes of MX25U1635F/3235F/6435F and MX25U1635E/3235E/6435E. The differences are also highlighted in the following table. Table 4: Command Set Table (16Mb/32Mb/64Mb) Part Number MX25R1635F/3235F/6435F MX25U1635F/3235F/6435F MX25U1635E/3235E/6435E RDSR 05h 05h 05h WRSR 01h 01h 01h 1-1-1 READ 03h 03h 03h 1-1-1 FAST READ 0Bh 0Bh 0Bh 1-1-2 DREAD 3Bh 3Bh 3Bh 1-2-2 2READ BBh BBh BBh 1-1-4 QREAD 6Bh 6Bh 6Bh 1-4-4 4READ EBh EBh EBh Page Program 02h 02h 02h Sector Erase 20h 20h 20h Block Erase (32KB) 52h 52h 52h Block Erase (64KB) Chip Erase Deep Power Down Release from Deep Power Down RDSFDP RDCR Program / Erase Suspend Program / Erase Resume RSTEN RST ENSO (Enter secured OTP) EXSO (Exit secured OTP) RDSCUR WRSCUR D8h D8h D8h 60h or C7h 60h or C7h 60h or C7h B9h B9h B9h CS# toggle ABh ABh 5Ah 5Ah 5Ah 15h -- -- 75h or B0h B0h B0h 7Ah or 30h 30h 30h 66h 66h 66h 99h 99h 99h B1h B1h B1h C1h C1h C1h 2Bh 2Bh 2Bh 2Fh 2Fh 2Fh P/N: AN0418 10 REV. 1, DEC. 30, 2015 APPLICATION NOTE 5. Register Comparison The MX25R1635F/3235F/6435F Status Register bits are similar with the registers of the MX25U1635F/3235F/6435F and MX25U1635E/3235E/6435E. Configuration Register can be found in MX25R1635F/3235F/6435F to provide more flexible block protection. Table 5-1: Status Register Bits MX25R1635F/3235F/6435F MX25U1635F/3235F/6435F MX25U1635E/3235E/6435E Bit 0 WIP WIP WIP Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 WEL BP0 BP1 BP2 BP3 QE SRWD Status Register Write Protect WEL BP0 BP1 BP2 BP3 QE SRWD Status Register Write Protect WEL BP0 BP1 BP2 BP3 QE SRWD Status Register Write Protect MX25R1635F/3235F/6435F MX25U1635F/3235F/6435F MX25U1635E/3235E/6435E Bit 0 Bit 1 Reserved Reserved --- --- Bit 2 Reserved TB (Top/bottom selected) Reserved Reserved Reserved Reserved -- -- -- -- ----- ----- MX25R1635F/3235F/6435F MX25U1635F/3235F/6435F MX25U1635E/3235E/6435E Bit 0 Bit 1 Reserved L/H Switch --- --- Bit 2 Reserved -- -- Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Reserved Reserved Reserved Reserved Reserved ------ ------ Part Number Bit 7 Table 5-2: Configuration Register Bits-1 Part Number Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Table 5-3: Configuration Register Bits-2 Part Number P/N: AN0418 11 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 5-4: Security Register Bits Part Number Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 MX25R1635F/3235F/6435F MX25U1635F/3235F/6435F MX25U1635E/3235E/6435E Secured OTP Indicator bit Secured OTP Indicator bit Secured OTP Indicator bit (2nd 4Kb Secured OTP) (2nd 4Kb Secured OTP) (2nd 4Kb Secured OTP) 0=Nonfactory lock, 0=Nonfactory lock, 0=Nonfactory lock, 1= Factory lock 1= Factory lock-1= Factory lock-LDSO LDSO LDSO (Lock-down 1st 4Kb Secured OTP) (Lock-down 1st 4Kb Secured OTP) (Lock-down 1st 4Kb Secured OTP) PSB (Program Suspend Status) PSB (Program Suspend Status) PSB (Program Suspend Status) ESB(Erase Suspend Status) Reserved P_FAIL E_FAIL Reserved ESB (Erase Suspend Status) Reserved P_FAIL E_FAIL WPSEL ESB (Erase Suspend Status) Reserved P_FAIL E_FAIL WPSEL 6. Package Comparison For detailed package information, please refer to the individual datasheet. Table 6-1: Package Comparison (16Mb) Part Number MX25R1635F MX25U1635F MX25U1635E 150mil 8SOP 200mil 8SOP 2x3 8USON 4x4 8USON 4x3 8USON 6x5 8WSON WLCSP Y Y Y --Y Y -Y -Y Y Y Y -Y -Y Y Y Y Table 6-2: Package Comparison (32Mb) Part Number MX25R3235F MX25U3235F MX25U3235E 150mil 8SOP 200mil 8SOP 4x4 8USON 4x3 8USON 6x5 8WSON WLCSP WLCSP Y Y -Y Y Y Y -Y Y Y Y Y Y -Y Y Y Y Y Y Table 6-3: Package Comparison (64Mb) P/N: AN0418 Part Number MX25R6435F MX25U6435F MX25U6435E 200mil 8SOP 4x4 8USON 6x5 8WSON WLCSP Y Y Y Y Y -Y Y --Y -- 12 REV. 1, DEC. 30, 2015 APPLICATION NOTE 7. Device Identification The RDID instruction is for reading the 1-byte Manufacturer ID followed by the 2-byte Device ID. The REMS instruction provides both the JEDEC assigned manufacturer ID and the specific Device ID. Table 7-1: ID Code Comparison (16Mb) Part Number RDID REMS MX25R1635F MX25U1635F MX25U1635E Manufacturer ID C2 h C2 h C2 h Memory Type 28 h 25 h 25 h Memory Density 15 h 35 h 35 h Manufacturer ID C2 h C2 h C2 h Device ID 15 h 35 h 35 h MX25R3235F MX25U3235F MX25U3235E Manufacturer ID C2 h C2 h C2 h Memory Type 28 h 25 h 25 h Memory Density 16 h 36 h 36 h Manufacturer ID C2 h C2 h C2 h Device ID 16 h 36 h 36 h MX25R6435F MX25U6435F MX25U6435E Manufacturer ID C2 h C2 h C2 h Memory Type 28 h 25 h 25 h Memory Density 17 h 37 h 37h Manufacturer ID C2 h C2 h C2 h Device ID 17 h 37 h 37 h Table 7-2: ID Code Comparison (32Mb) Part Number RDID REMS Table 7-3: ID Code Comparison (64Mb) Part Number RDID REMS P/N: AN0418 13 REV. 1, DEC. 30, 2015 APPLICATION NOTE 8. BP bit Block Protection All of the listed Macronix flash products use BP bits to select groups of memory areas for write protection. The protection area has slight difference, so please check the following table before using. Table 8-1-1: Block Protection (BP) with T/B bit = 0 (16Mb) Status Register Bit Protected Blocks MX25R1635F MX25U1635F MX25U1635E 0 (none) 0 (none) 0 (none) BP3 BP2 BP1 BP0 0 0 0 0 0 0 0 1 1 (1 block, block 31st) 1 (1 block, block 31st) 1 (1 block, block 31st) 0 0 1 0 2 (2 blocks, block 30th~31st) 2 (2 blocks, block 30th~31st) 2 (2 blocks, block 30th~31st) 0 0 1 1 3 (4blocks, block 28th~31st) 3 (4blocks, block 28th~31st) 3 (4blocks, block 28th~31st) 0 1 0 0 4 (8blocks, block 24th~31st) 4 (8blocks, block 24th~31st) 4 (8blocks, block 24th~31st) 0 1 0 1 5 (16blocks, block 16th~31st) 5 (16blocks, block 16th~31st) 5 (16blocks, block 16th~31st) 0 1 1 0 6 (32blocks, all) 6 (32blocks, all) 6 (32blocks, all) 0 1 1 1 7 (32blocks, all) 7 (32blocks, all) 7 (32blocks, all) 1 0 0 0 8 (32blocks, all) 8 (32blocks, all) 8 (32blocks, all) 1 0 0 1 9 (32blocks, all) 9 (32blocks, all) 9 (32blocks, all) 1 0 1 0 10 (32blocks, all) 10 (16blocks, block 0th~15th) 10 (16blocks, block 0th~15th) 1 0 1 1 11 (32blocks, all) 11 (24blocks, block 0th~23rd) 11 (24blocks, block 0th~23rd) 1 1 0 0 12 (32blocks, all) 12 (28blocks, block 0th~27th) 12 (28blocks, block 0th~27th) 1 1 0 1 13 (32blocks, all) 13 (30blocks, block 0th~29th) 13 (30blocks, block 0th~29th) 1 1 1 0 14 (32blocks, all) 14 (31blocks, block 0th~30th) 14 (31blocks, block 0th~30th) 1 1 1 1 15 (32blocks, all) 15 (32blocks, all) 15 (32blocks, all) Table 8-1-2: Block Protection (BP) with T/B bit = 1 (16Mb) Status Register Bit P/N: AN0418 Protected Blocks MX25R1635F MX25U1635F MX25U1635E 0 0 (none) -- -- 1 1 (1 block, block 0th) -- -- 1 0 2 (2 blocks, block 0th~1st) -- -- 1 1 3 (4blocks, block 0th~3rd) -- -- 1 0 0 4 (8blocks, block 0th~7th) -- -- 1 0 1 5 (16blocks, block 0th~15th) -- -- 0 1 1 0 6 (32blocks, all) -- -- 0 1 1 1 7 (32blocks, all) -- -- 1 0 0 0 8 (32blocks, all) -- -- 1 0 0 1 9 (32blocks, all) -- -- 1 0 1 0 10 (32blocks, all) -- -- 1 0 1 1 11 (32blocks, all) -- -- 1 1 0 0 12 (32blocks, all) -- -- 1 1 0 1 13 (32blocks, all) -- -- 1 1 1 0 14 (32blocks, all) -- -- 1 1 1 1 15 (32blocks, all) -- -- BP3 BP2 BP1 BP0 0 0 0 0 0 0 0 0 0 0 0 0 14 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 8-2-1: Block Protection (BP) with T/B bit = 0 (32Mb) Status Register Bit Protected Blocks BP3 BP2 BP1 BP0 MX25R3235F MX25U3235F MX25U3235E 0 0 0 0 0 (none) 0 (none) 0 (none) 0 0 0 1 1 (1 block, block 63rd) 1 (1 block, block 63rd) 1 (1 block, block 63rd) 0 0 1 0 2 (2 blocks, block 62nd~63rd) 2 (2 blocks, block 62nd~63rd) 2 (2 blocks, block 62nd~63rd) 0 0 1 1 3 (4blocks, block 60th~63rd) 3 (4blocks, block 60th~63rd) 3 (4blocks, block 60th~63rd) 0 1 0 0 4 (8blocks, block 56th~63rd) 4 (8blocks, block 56th~63rd) 4 (8blocks, block 56th~63rd) 0 1 0 1 5 (16blocks, block 48th~63rd) 5 (16blocks, block 48th~63rd) 5 (16blocks, block 48th~63rd) 0 1 1 0 6 (32blocks 32nd~63rd) 6 (32blocks 32nd~63rd) 6 (32blocks 32nd~63rd) 0 1 1 1 7 (64blocks, all) 7 (64blocks, all) 7 (64blocks, all) 1 0 0 0 8 (64blocks, all) 8 (64blocks, all) 8 (64blocks, all) 1 0 0 1 9 (64blocks, all) 9 (32blocks, 0th~31st) 9 (32blocks, 0th~31st) 1 0 1 0 10 (64blocks, all) 10 (48blocks, block 0th~47th) 10 (48blocks, block 0th~47th) 1 0 1 1 11 (64blocks, all) 11 (56blocks, block 0th~55th) 11 (56blocks, block 0th~55th) 1 1 0 0 12 (64blocks, all) 12 (60blocks, block 0th~59th) 12 (60blocks, block 0th~59th) 1 1 0 1 13 (64blocks, all) 13 (62blocks, block 0th~61st) 13 (62blocks, block 0th~61st) 1 1 1 0 14 (64blocks, all) 14 (63blocks, block 0th~62nd) 14 (63blocks, block 0th~62nd) 1 1 1 1 15 (64blocks, all) 15 (64blocks, all) 15 (64blocks, all) Table 8-2-2: Block Protection (BP) with T/B bit = 1 (32Mb) Status Register Bit P/N: AN0418 Protected Blocks MX25R3235F MX25U3235F MX25U3235E 0 0 (none) -- -- 1 1 (1 block, block 0th) -- -- 1 0 2 (2 blocks, block 0th~1st) -- -- 1 1 3 (4blocks, block 0th~3rd) -- -- 1 0 0 4 (8blocks, block 0th~7th) -- -- 1 0 1 5 (16blocks, block 0th~15th) -- -- 0 1 1 0 6 (32blocks 0th~31st) -- -- 0 1 1 1 7 (64blocks, all) -- -- 1 0 0 0 8 (64blocks, all) -- -- 1 0 0 1 9 (64blocks, all) -- -- 1 0 1 0 10 (64blocks, all) -- -- 1 0 1 1 11 (64blocks, all) -- -- 1 1 0 0 12 (64blocks, all) -- -- 1 1 0 1 13 (64blocks, all) -- -- 1 1 1 0 14 (64blocks, all) -- -- 1 1 1 1 15 (64blocks, all) -- -- BP3 BP2 BP1 BP0 0 0 0 0 0 0 0 0 0 0 0 0 15 REV. 1, DEC. 30, 2015 APPLICATION NOTE Table 8-3-1: Block Protection (BP) with T/B bit = 0 (64Mb) Status Register Bit Protected Blocks BP3 BP2 BP1 BP0 MX25R6435F MX25U6435F MX25U6435E 0 0 0 0 0 (none) 0 (none) 0 (none) 0 0 0 1 1 (1 block, block 127th) 1 (1 block, block 127th) 1 (1 block, block 127th) 0 0 1 0 2 (2 blocks, block 126th~127th) 2 (2 blocks, block 126th~127th) 2 (2 blocks, block 126th~127th) 0 0 1 1 3 (4blocks, block 124th~127th) 3 (4blocks, block 124th~127th) 3 (4blocks, block 124th~127th) 0 1 0 0 4 (8blocks, block 120th~127th) 4 (8blocks, block 120th~127th) 4 (8blocks, block 120th~127th) 0 1 0 1 0 1 1 0 6 (32blocks 96th~127th) 6 (32blocks 96th~127th) 6 (32blocks 96th~127th) 0 1 1 1 7 (64blocks, 64th~127th) 7 (64blocks, 64th~127th) 7 (64blocks, 64th~127th) 1 0 0 0 8 (128blocks, all) 8 (64blocks, 0th~63th) 8 (64blocks, 0th~63th) 1 0 0 1 9 (128blocks, all) 9 (96blocks, 0th~95th) 9 (96blocks, 0th~95th) 1 0 1 0 10 (128blocks, all) 10 (112blocks, block 0th~111st) 10 (112blocks, block 0th~111st) 1 0 1 1 11 (128blocks, all) 11 (120blocks, block 0th~119th) 11 (120blocks, block 0th~119th) 1 1 0 0 12 (128blocks, all) 12 (124blocks, block 0th~123rd) 12 (124blocks, block 0th~123rd) 1 1 0 1 13 (128blocks, all) 13 (126blocks, block 0th~125th) 13 (126blocks, block 0th~125th) 1 1 1 0 14 (128blocks, all) 14 (127blocks, block 0th~126th) 14 (127blocks, block 0th~126th) 1 1 1 1 15 (128blocks, all) 15 (128blocks, all) 15 (128blocks, all) 5 (16blocks, block 112nd ~127th ) 5 (16blocks, block 112nd ~127th ) 5 (16blocks, block 112nd ~127th ) Table 8-3-2: Block Protection (BP) with T/B bit = 1 (64Mb) Status Register Bit P/N: AN0418 Protected Blocks MX25R6435F MX25U6435F MX25U6435E 0 0 (none) -- -- 1 1 (1 block, block 0th) -- -- 1 0 2 (2 blocks, block 0th~1st) -- -- 0 1 1 3 (4blocks, block 0th~3rd) -- -- 1 0 0 4 (8blocks, block 0th~7th) -- -- 0 1 0 1 5 (16blocks, block 0th~15th) -- -- 0 1 1 0 6 (32blocks 0th~31st) -- -- 0 1 1 1 7 (64blocks, 0th~63rd) -- -- 1 0 0 0 8 (128blocks, all) -- -- 1 0 0 1 9 (128blocks, all) -- -- 1 0 1 0 10 (128blocks, all) -- -- 1 0 1 1 11 (128blocks, all) -- -- 1 1 0 0 12 (128blocks, all) -- -- 1 1 0 1 13 (128blocks, all) -- -- 1 1 1 0 14 (128blocks, all) -- -- 1 1 1 1 15 (128blocks, all) -- -- BP3 BP2 BP1 BP0 0 0 0 0 0 0 0 0 0 0 16 REV. 1, DEC. 30, 2015 APPLICATION NOTE 9. Reference The table below shows the datasheet versions used for comparison in this application note. For the most current, detailed specification, please refer to the Macronix Website at http://www.macronix.com/ or contact Macronix sales. Table 9. Datasheet Versions Datasheet Location Date Issued Versions MX25R1635F Website REV. 1.2 OCT. 07, 2015 MX25R3235F Website REV. 1.2 SEP. 18, 2015 MX25R6435F Website REV. 1.2 OCT. 16, 2015 MX25U1635E Website REV. 2.0 APR. 22, 2014 MX25U1635F Website REV. 1.5 MAR. 17, 2015 MX25U3235E Website REV. 1.9 NOV. 11, 2013 MX25U3235F Website REV. 1.4 SEP. 25, 2015 MX25U6435E Website REV. 1.5, NOV. 07, 2013 MX25U6435F Website REV. 1.4 MAY 07, 2014 10. Revision History Table 10. Revision History P/N: AN0418 Revision No. Description Page Date REV. 1 Initial Release ALL DEC. 30, 2015 17 REV. 1, DEC. 30, 2015 APPLICATION NOTE 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. 2015. All rights reserved, including the trademarks and tradename thereof, such as Macronix, MXIC, MXIC Logo, MX Logo, Integrated Solutions Provider, NBit, Nbit, NBiit, Macronix NBit, eLite-Flash, HybridNVM, HybridFlash, 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 third party referred thereto (if any) are for identification purposes only. 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. P/N: AN0418 18 REV. 1, DEC. 30, 2015