EM25LV512-25MS

EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION General Description The EM25LV512 is a 512K bits Flash memory organized as 64K x 8 bits and uses a single voltage of 2.7-3.6V for Program and Erase. It features a typical 2ms Page-Program time and a typical 40ms Block-Erase time. The device uses status register to detect the completion of the Program or Erase operation. To protect against inadvertent write, the device has on-chip hardware and software data protection schemes. The device offers typical 100,000 cycles endurance and a greater than 10 years data retention. The EM25LV512 conforms to SPI Bus compatible Serial Interface. It consisted of four pins (serial clock, chip select, serial data in, and serial data out) that support high-speed serial data transfers of up to 33MHz. The Hold pin, Write Protect pin, and Programmable Write Protect features provide flexible control. The EM25LV512 is offered in 8-lead SO package and known good die (KGD). For KGD, please contact ELAN Microelectronics or its representatives for detailed information (see Appendix at the bottom of this specification for Ordering Information). The EM25LV512 devices are suitable for applications that require memories with convenient and economical updating of program, data or configurations, e.g., Graphic cards, Hard disk drives, Networking cards, LCD monitors, Cordless Phones, etc. Features Single Pow er Supply • Full voltage range from 2.7 to 3.6 volts for both read and write operations • Regulated voltage range: 3.0 to 3.6 volts for both read and write operations Small block Erase Capability Block: Uniform 32K bytes Clock Rate • 33MHz (Maximum) Pow er Consumption • Active Current: 4mA (Typical) • Power-down Mode Standby current: 1µA (Typical) Page Program Features • Up to 256 Bytes in 2ms (Typical) Erase Features • Block-Erase Time: 40ms (Typical) • Chip-Erase Time: 40ms (Typical) Automatic Write Timing • Internal VPP Generation SPI Bus Compatible Serial Interface High Reliability: • Endurance cycles: 100K (Typical) • Data retention: 10 years Package Option • 8-lead-SO (150 mil) This specification is subject to change without further notice. (11.08.2004 V1.0) Page 1 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Pin Assignments S# Q W# VSS 1 2 8 VCC HOLD# C D SO8 7 Top View 3 6 4 5 Figure 0: Pin Assignments Pin Description Pin Name C D Q S# W# Hold# VDD VSS Function Serial Clock 1 Serial Data Input 2 Serial Data Output 3 Chip Select 4 Write Protect 5 Hold 6 Supply Voltage Ground Table 1: Pin Description 1 Serial Clock (C): This input pin provides the timing for serial input and output operations. Instructions, addresses, or data present at Serial Data Input (D) are latched on the rising edge of Serial Clock (C). Data on Serial Data Output (Q) changes after the falling edge of Serial Clock (C). 2 Serial Data Input (D): This input pin provides a means for instructions, addresses, and data to be serially written to the device. Data is latched on the rising edge of Serial Clock (C). 3 Serial Data Output (Q): This output pin provides a means for data and status to be serially read from the device. Data is shift out on the falling edge of Serial Clock (C). This specification is subject to change without further notice. (11.08.2004 V1.0) Page 2 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION 4 Chip Select (S#): When this input signal is High, the device is deselected and Serial Data Output (Q) is at high impedance state. Unless an internal Program, Erase, or Write Status Register cycle is in progress, the device will be in the Standby mode (this is not the Deep Power-down mode). Driving Chip Select (S#) Low enables the device, and places it in the active power mode. After Power-up, a falling edge on Chip Select (S#) is required prior to the start of any instruction. 5 Write Protect (W#): This input pin can be used to prevent the Status Register from being written and active low. When used in conjunction with the Status Register’s Block Protect (BP1 and BP1) bits and Status Register Protect (SRWD) bits, a portion of or the entire memory array can be hardware protected. 6 Hold (HOLD#): This input pin is used to pause any serial communications with the device without the need to deselect the device. When HOLD# is brought low, the Serial Data Output (Q) is at high impedance state, and Serial Data Input (D) & Serial Clock (C) are Don’t Care. To start the Hold condition, the device must be selected with Chip Select (S#) driven Low. SPI Modes These devices can be driven by a microcontroller with its SPI peripheral running in either of the two following modes: CPOL=0, CPHA=0 CPOL=1, CPHA=1 Under these two modes, input data is latched in on the rising edge of Serial Clock (C), and output data is available from the falling edge of Serial Clock (C). The difference between the two modes, as shown in Figure 2, is the clock polarity when the bus master is in Stand-by mode and not transferring data: C remains at 0 for (CPOL=0, CPHA=0) C remains at 1 for (CPOL=1, CPHA=1) This specification is subject to change without further notice. (11.08.2004 V1.0) Page 3 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION SD O S P I In te rf a c e w it h ( C P O L ,CP HA ) = ( 0,0) o r ( 1 , 1 ) SD I SC K C Bu s M a ste r (S T 6 , S T 7 , S T 9 , ST 1 0 , O the r s ) Q D C Q D C Q D SP I Me m o r y De v ic e S# W# HOLD# S# SP I Me m o r y De v ic e W# HO LD# S# SP I Me m o r y De v ic e W# HO LD# CS 3 CS 2 CS 1 Figure 1: Bus Master and Memory Devices on the SPI Bus (C POL =CPHA=0) C (C POL =CPHA=1) C D Q MSB MS B Figure 2: SPI Modes Supported This specification is subject to change without further notice. (11.08.2004 V1.0) Page 4 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Memory Organization The memory is organized as: 65,536 Bytes (8 bits per byte) 2 Blocks (256K bits or 32,768 bytes per block) 256 Pages (256 bytes per page) Each page can be individually programmed (bits are programmed from “1” to “0”). The device is Block or Chip Erasable (bits are erased from “0” to “1”), but not Page Erasable. Block 1 0 Address Range 8000h 0000h FFFFh 7FFFh Table 2: Memory Organization Ho ld # W# S# C D Q C o n t r o l L o gic I/O B u f f e r a n d D a ta L a tc h e s A ddr es s R egis t er and C ount er 2 5 6 B yte D a ta B u f f e r Sta t u s R egis t er FFFF h B l o ck1 X-Decoder 800 0h 7 FFFh S ize o f t h e re a d -o n ly m e m o ry a re a B l o ck0 00 00 h 2 5 6 B yt e s ( P ag e S iz e ) 0 0 FFh Y - D e co der Figure 2: SPI Modes Supported This specification is subject to change without further notice. (11.08.2004 V1.0) Page 5 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Status Register The Status Register contains a number of status and control bits that can be read or set by specific instructions. Refer to Table 3 below for details. BUSY Bit The (BUSY) bit is a read only bit in the status register, which is set to “1” state when the device is executing the Write Status Register, Program, or Erase cycle while the device ignores further instructions except for the Read Status Register instruction. When the Program, Erase, or Write Status Register instruction is completed, the (BUSY) bit will be cleared to “0” state indicating the device is ready for further instructions. WEL Bit The Write Enable Latch (WEL) bit indicates the status of the internal Write Enable Latch. When setting to “1,” the internal Write Enable Latch is set. When setting to “0,” the internal Write Enable Latch is reset and no Write Status Register, Program, nor Erase instruction is accepted. BP1, BP0 Bits The Block Protect (BP1, BP0) bits are non-volatile. They define the size of the area to be software protected against Program and Erase instructions. These bits are written with the Write Status Register (WRSR) instruction. When one or both of the Block Protect (BP1, BP0) bits is set to “1”, the relevant memory area, as defined in Table 4, becomes protected against Page Program (PP) and Block Erase (BE) instructions. The Block Protect (BP1, BP0) bits can be written provided that the Hardware Protected mode has not been set. The Chip Erase (CE) instruction is executed if, and only if, both Block Protect (BP1, BP0) bits are set to “0.” SRWD Bit The Status Register Write Disable (SRWD) bit is operated in conjunction with the Write Protect (W#) signal. The Status Register Write Disable bit and Write Protect signal allow the device to be located in the Hardware Protected mode (when the Status Register Write Disable (SRWD) bit is set to “1,” and Write Protect (W#) is driven Low). In this mode, the non-volatile bits of the Status Register (SRWD, BP1, and BP0) become read-only bits and the Write Status Register (WRSR) instruction is no longer accepted for execution. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 6 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION b7 SR W D 0 0 0 b0 BP1 BP0 WEL BUSY Status Register W rite Protect Block Protect Bits W rite Enable Latch Bit BUSY Bit Table 3: Status Register Format Status Register Content BP1 Bit 0 0 1 1 BP0 Bit 0 1 0 1 Protected Area None Memory Contents Unprotected Area All blocks* (2 blocks: 0 & 1) No protection against Page Program (PP) and Block Erase (BE) All blocks (Block 0 and 1) protected against Chip Erase (CE) All blocks (2 blocks: 0 & 1) None * The device is ready to accept a Chip Erase instruction provided that both Block Protects (BP1 and BP0) are set to “0”. Table 4: Protected Area Sizes This specification is subject to change without further notice. (11.08.2004 V1.0) Page 7 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Device Operation The EM25LV512 uses Instruction to initiate the memory operation functions. The Instructions are written to the device by asserting Serial Data In (D) input while keeping Chip Select (S#) Low and are latched on the rising edge of Serial Clock(C). Operation Read Write Standby Deep Power Down Mode1 Hold Write Protect Status Register Write 3 Inhibit 2 S# VIL VIL VIL VIL VIL VIL VIL Hold# VIH VIH VIH VIH VIL VIH VIH W# VIH VIH VIH VIH VIH VIH VIL D X Address/Data In X X X X X Q Data Out High Z / Status Register out High Z High Z High Z High Z High Z Note: 1 See Table 7 for the Instruction Set of Deep Power Down Mode. 2 Write Protect is enabled with the Status Register parameter BP0 and BP1 (see Table 4). 3 Status Register Write Inhibit will be combined with Status Register Write Disable (SRWD) and Write Protect (W#) (see Table 6). Table 5: EM25LV512 Device Operation Hold Function The Hold (HOLD#) signal allows the EM25LV512 operation to be paused while it is actively selected with S# at low. To enter into the Hold condition, the device must be selected with Chip Select (S#) at Low. However, setting this Hold signal Low does not terminate any Write Status Register, Program, or Erase cycle that is currently in progress. The Hold condition starts on the falling edge of the Hold (HOLD#) signal, provided that this coincides with Serial Clock (C) being at Low (shown in Figure 9). The Hold condition ends on the rising edge of the Hold (HOLD#) signal, provided that this coincides with Serial Clock (C) being at Low as well. If the falling edge does not coincide with Serial Clock (C) being at Low, the Hold condition will start when Serial Clock (C) goes Low. Similarly, if Serial Clock (C) is not at Low, the Hold condition will end when Serial Clock (C) goes to Low (this is shown in Figure 9). During the Hold condition, the Serial Data Output (Q) is at high impedance, and the Serial Data Input (D) & Serial Clock (C) are Don’t Care. Normally, the device is kept selected with Chip Select (S#) driven Low for the whole duration of the Hold condition. This is to assure that the state of the internal logic remains unchanged from the moment it enters the Hold condition. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 8 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION If Chip Select (S#) goes High while the device is in the Hold condition, the internal logic of the device will be reset. To restart communication with the device, it is necessary to drive Hold (HOLD#) to High, and then drive Chip Select (S#) to Low. This prevents the device from going back to the Hold condition. Write Protect The EM25LV512 offers the following data protection mechanism features to prevent inadvertent write from noisy environment: Power-On Reset and an internal timer (tPUW) can provide protection against inadvertent changes while the power supply is outside the operating specification. Program, Erase, and Write Status Register instructions consisting of a number of clock pulses in multiple of eight, will be checked before they are accepted for execution. All instructions that modify data must be preceded by a Write Enable (WREN) instruction to set the Write Enable Latch (WEL) bit. This bit is returned to its reset state by the following events: • • • • • • Power-up Write Disable (WRDI) instruction completion Write Status Register (WRSR) instruction completion Page Program (PP) instruction completion Block Erase (BE) instruction completion Chip Erase (CE) instruction completion The Block Protect (BP1, BP0) bits allow part of the memory to be configured as read-only. This is the Software Protected Mode (SPM). The Write Protect (W#) signal, in collaboration with the Status Register Write Disable (SRWD) bit, allows the Block Protect (BP1, BP0) bits and Status Register Write Disable (SRWD) bit to be write-protected. This is the Hardware Protected Mode (HPM). In addition to the low power consumption feature, the Deep Power-down mode offers extra software protection from inadvertent Write from Program and Erase because all instructions are ignored except one particular instruction (the Release from Deep Power down instruction). The protection features of the device are summarized in the following table (Table 6). When the Status Register Write Disable (SRWD) bit of the Status Register is set at “0” (its initial delivery state), it is possible to write to the Status Register provided that the Write Enable Latch (WEL) bit has previously been set by a Write Enable (WREN) instruction, regardless of whether Write Protect (W#) is driven High or Low. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 9 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION When the SRWD bit of the Status Register is set to “1,” two conditions need to be considered according to the state with which Write Protect (W#) is in: If Write Protect (W#) is driven High, it is allowed to write to the Status Register provided that the Write enable Latch (WEL) bit has been previously set by a Write Enable (WREN) instruction. If Write Protect (W#) is driven Low, it is not allowed to write to the Status Register even if the Write Enable Latch (WEL) bit has previously been set by a Write Enable (WREN) instruction (attempts to write to the Status Register will be rejected and will not be accepted for execution). Therefore, all data bytes in the memory area that are software protected (SPM) by the Block Protect (BP1, BP0) bits of the Status Register, are also hardware protected against data modification. Regardless of the order of the above two conditions, the Hardware Protected Mode (HPM) can be entered by– setting the Status Register Write Disable (SRWD) bit after driving Write Protect (W#) Low, or driving Write Protect (W#) Low after setting the Status Register Write Disable (SRWD) bit. The only way to exit from the Hardware Protected Mode (HPM) once it is entered, is to drive Write Protect (W#) High. If Write Protect (W#) is permanently tied to High, the Hardware Protected Mode (HPM) can never be activated. However, the Software Protected Mode (SPM) can be activated by using the Block Protect (BP1, BP0) bits of the Status Register. W# SRWD Signal Bit 1 0 1 0 0 1 Mode Write Protection of the Status Register Memory Content Protected Area1 Unprotected Area1 Ready to accept Page Program, and Block Erase instructions. Software Protected (SPM) Status Register is Writable (provided that the WREN instruction has set the Protected against Page WEL bit). Program, Block Erase and Chip Erase. The values in the SRWD, BP1 and BP0 bits can be changed. Status Register is Hardware write protected. The values in the SRWD, BP1 and BP0 bits cannot be changed. Protected against Page Program, Block Erase and Chip Erase. 0 1 Hardware Protected (HPM) Ready to accept Page Program, and Block Erase instructions. Table 6: Protection Modes This specification is subject to change without further notice. (11.08.2004 V1.0) Page 10 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Instructions All instructions, addresses, and data are shifted in and out of the device with the most significant bit shifted first. Serial Data Input (D) is sampled on the first rising edge of Serial Clock (C) after Chip Select (S#) is driven Low. Then, the one-byte instruction code must be shifted in to the device with the most significant bit entered first on Serial Data Input (D), and each bit being latched on the rising edges of Serial Clock (C). The instruction set is listed in Table 7 below. Depending on the instruction, the one-byte instruction code is followed by address bytes or data bytes, or both, or none at all. Chip Select (S#) must be driven High after the last bit of the instruction sequence has been shifted in. At the end of a Page Program (PP), Block Erase (BE), Chip Erase (CE), or Write Status Register (WRSR) instruction, Chip Select (S#) must be driven High exactly at a byte boundary. Otherwise the instruction will be rejected and not executed. That is, Chip Select (S#) must be driven High when the number of clock pulses after Chip Select (S#) being driven Low, is an exact multiple of eight. All attempts to access the memory array during a Write Status Register cycle, Program cycle, or Erase cycle are ignored, and the internal Write Status Register cycle, Program cycle, or Erase cycle will continue ineffectively. Instruction WREN WRDI RDSR WRSR READ FAST READ PP BE CE DP RES RDID Description Write Enable Write Disable Read Status Register Write Status Register Read Data Bytes Read Data Bytes at Higher Speed Page Program Block Erase Chip Erase Deep Power-down Release from Deep Power-down, and Read Device ID Release from Deep Power-down Read Manufacturer/Device ID One-byte Instruction Code 0000 0110 0000 0100 0000 0101 0000 0001 0000 0011 0000 1011 0000 0010 1101 1000 1100 0111 1011 1001 1010 1011 1001 0000 Address Dummy Data Bytes Bytes Bytes 0 0 0 0 3 3 3 3 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 3 0 3 0 0 1 to ∞ 1 1 to ∞ 1 to ∞ 1 to 256 0 0 0 1 to ∞ 0 1 to ∞ Table 7: Instruction Set This specification is subject to change without further notice. (11.08.2004 V1.0) Page 11 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Write Enable (WREN) The Write Enable (WREN) instruction (Figure 10) sets the Write Enable Latch (WEL) bit to “1”. The Write Enable Latch (WEL) bit must be set prior to the Page Program (PP), Block Erase (BE), Chip Erase (CE), and Write Status Register (WRSR) instructions. The Write Enable (WREN) instruction is entered by driving Chip Select (S#) Low, sending the instruction code, and then driving Chip Select (S#) High. Write Disable (WRDI) The Write Disable (WRDI) instruction (Figure 11) resets the Write Enable Latch (WEL) bit to “0.” The Write Disable (WRDI) instruction is entered by driving Chip Select (S#) Low, sending the instruction code, and then driving the Chip Select (S#) High. The Write Enable Latch (WEL) bit is reset under the following conditions: Power-up Write Disable (WRDI) instruction completed Write Status Register (WRSR) instruction completed Page Program (PP) instruction completed Block Erase (BE) instruction completed Chip Erase (CE) instruction completed Read Status Register (RDSR) The Read Status Register (RDSR) instruction allows the 8-bit Status Register to be read. The Status Register may be read any time, even while a Program, Erase, or Write Status Register cycle is in progress. When one of these cycles is in progress, it is recommended to check the (BUSY) bit before sending a new instruction to the device. It is also allowed to read the Status Register continuously, as shown in Figure 12. An improvement in the time to Write Status Register (WRSR), Program (PP), or Erase (SE, BE or CE) can be achieved by not waiting for the worst-case delay (tW, tPP, tSE, tBE or tCE). The (BUSY) bit is provided in the Status Register so that the system application program can monitor its value, polling it to “0” when the previous Write cycle, Program cycle, or Erase cycle is completed. Write Status Register (WRSR) The Write Status Register (WRSR) instruction allows new values to be written to the Status Register. Before it is accepted, a Write Enable (WREN) instruction must be executed first. After the Write Enable (WREN) instruction has been decoded and executed, the device sets the Write Enable Latch (WEL). This specification is subject to change without further notice. (11.08.2004 V1.0) Page 12 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION The Write Status Register (WRSR) instruction is entered by driving the Chip Select (S#) Low, followed by the instruction code and the data byte on Serial Data Input (D). The instruction sequence is shown in Figure 13. The Write Status Register (WRSR) instruction has no effect on Bits 6, 5, 4, 1, & 0 of the Status Register. Bits 6, 5, & 4 are always read as “0.” Chip Select (S#) must be driven High after the eighth bit of the data byte has been latched in. Otherwise, the Write Status Register (WRSR) instruction will not execute. As soon as Chip Select (S#) is driven High, the self-timed Write Status Register cycle (whose duration is tW) is initiated. While the Write Status Register cycle is in progress, the Status Register may still be read to check the value of the (BUSY) bit. The (BUSY) bit is “1” during the self-timed Write Status Register cycle, and is “0” when it is completed. At some unspecified time before the cycle is completed, the Write Enable Latch (WEL) is reset. The Write Status Register (WRSR) instruction allows user to change the values of the Block Protect (BP1, BP0) bits, and to define the size of the area that is to be treated as read-only as defined in Table 4. The Write Status Register (WRSR) instruction also allows the user to set or reset the Status Register Write Disable (SRWD) bit in accordance with the Write Protect (W#) signal. The Status Register Write Disable (SRWD) bit and Write Protect (W#) signal allow the device to be put in the Hardware Protected Mode (HPM). The Write Status Register (WRSR) instruction will not be executed once the Hardware Protected Mode (HPM) is entered. Read Data Bytes (READ) The Read Data instruction allows one or more data bytes to be read in sequence from the memory. The instruction is initiated by driving the Chip Select (S#) Low. The instruction code for the Read Data Bytes (READ) instruction is followed by a 3-byte address (A23-A0), each bit being latched in during the rising edge of Serial Clock (C). Then the memory data at that address is shifted out on Serial Data Output (Q) with each bit being shifted out at a maximum frequency fR during the falling edge of Serial Clock (C). The instruction sequence is shown in Figure 14. The first byte address can be situated at any location. The address is automatically incremented to the next higher address after each byte of data is shifted out. The whole memory can, therefore, be read with a single Read Data Bytes (READ) instruction. When the highest address is reached, the address counter rolls over to 000000h, allowing the read sequence to continue indefinitely. The Read Data Bytes (READ) instruction is terminated by driving Chip Select (S#) High. Chip Select (S#) can be driven High at any time during data output. Any Read Data Bytes (READ) instruction executed while a Program or Write cycle is in progress, is rejected without having any effects on the cycle that is in progress. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 13 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Read Data Bytes at Higher Speed (FAST-READ) The Read Data instruction allows one or more data bytes to be sequentially read from the memory. The instruction is initiated by driving Chip Select (S#) Low. The instruction code for the Read Data Bytes at Higher Speed (FAST_READ) instruction is followed by a 3-byte address (A23-A0) and a dummy byte with each bit being latched in during the rising edge of Serial Clock (C). Then the memory data at that address is shifted out on Serial Data Output (Q) with each bit being shifted out at a maximum frequency fC during the falling edge of Serial Clock (C). The instruction sequence is shown in Figure 15. The first byte address can be at any location. The address is automatically incremented to the next higher address after each byte of data is shifted out. The whole memory can, therefore, be read with a single Read Data Bytes at Higher Speed (FAST_READ) instruction. When the highest address is reached, the address counter rolls over to 000000h; allowing the read sequence to continue indefinitely. The Read Data Bytes at Higher Speed (FAST_READ) instruction is terminated by driving Chip Select (S#) High. Chip Select (S#) can be driven High at any time during data output. Any Read Data Bytes at Higher Speed (FAST_READ) instruction executed while a Program or Write cycle is in progress is rejected without having any effects on the cycle that is in progress. Page Program (PP) The Page Program (PP) instruction allows 256 bytes of data to be programmed to the memory locations that have been erased before the Page Program. Before it can be accepted, a Write Enable (WREN) instruction must be executed first. After the Write Enable (WREN) instruction has been decoded, the device sets the Write Enable Latch (WEL). The Page Program (PP) instruction is entered by driving Chip Select (S#) Low, followed by the instruction code, three address bytes, and at least one data byte on Serial Data Input (D). If the 8 least significant address bits (A7-A0) are not all zeroes, all transmitted data that go beyond the end of the current page are programmed from the start address of the same page (from the address whose 8 least significant bits, A7-A0, are all zeroes). Chip Select (S#) must be driven Low for the entire duration of the sequence. The instruction sequence is shown in Figure 16. If more than 256 bytes are sent to the device, the previously latched data will be discarded and the last 256 data bytes will be programmed correctly within the same page. If less than 256 Data bytes are sent to device, they will be programmed correctly at the requested addresses without having any effects on the other location of the same page. Chip Select (S#) must be driven High after the eighth bit of the last data byte has been latched in, otherwise the Page Program (PP) instruction will not execute. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 14 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION As soon as Chip Select (S#) is driven High, the self-timed Page Program cycle (whose duration is tPP) is initiated. While the Page Program cycle is in progress, the Status Register may be read to check the value of the (BUSY) bit. The (BUSY) bit is “1” during the self-timed Page Program cycle, and is “0” when it is completed. At some unspecified time before the cycle is completed, the Write Enable Latch (WEL) bit is reset. A Page Program (PP) instruction applied to a page that is protected by the Block Protect (BP1, BP0) bits (see Tables 2 and 4) will not be executed. Block Erase The Block Erase (BE) instruction sets all bits inside the chosen block to “1” (FFh). Before it can be accepted, a Write Enable (WREN) instruction must be previously executed. After the Write Enable (WREN) instruction has been decoded, the device sets the Write Enable Latch (WEL). The Block Erase (BE) instruction is entered by driving the Chip Select (S#) Low, followed by the instruction code, and three address bytes on Serial Data Input (D). Any address inside the Block (see Table 3) is a valid address for the Block Erase (BE) instruction. Chip Select (S#) must be driven Low for the entire duration of the sequence. The instruction sequence is shown in Figure 17. Chip Select (S#) must be driven High after the eighth bit of the last address byte has been latched in, otherwise, the Block Erase (BE) instruction will not execute. As soon as the Chip Select (S#) is driven High, the self-timed Block Erase cycle (whose duration is tSE) is initiated. While the Block Erase cycle is in progress, the Status Register may be read to check the value of the (BUSY) bit. The (BUSY) bit is “1” during the self-timed Block Erase cycle, and is “0” when it is completed. At some unspecified time before the cycle is completed, the Write Enable Latch (WEL) bit is reset. A Block Erase (BE) instruction applied to a page that is protected by the Block Protect (BP1, BP0) bits (see Tables 3 and 2) will not be executed. Chip Erase The Chip Erase (CE) instruction sets all bits of the memory array to “1” (FFh). Before it can be accepted, a Write Enable (WREN) instruction must be previously executed. After the Write Enable (WREN) instruction has been decoded, the device sets the Write Enable Latch (WEL). The Chip Erase (CE) instruction is entered by driving the Chip Select (S#) Low, followed by the instruction code on Serial Data Input (D). The Chip Select (S#) must be driven Low for the entire duration of the sequence. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 15 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION The instruction sequence is shown in Figure 18. The Chip Select (S#) must be driven High after the eighth bit of the instruction code has been latched in, otherwise, the Chip Erase instruction will not execute. As soon as Chip Select (S#) is driven High, the self-timed Chip Erase cycle (whose duration is tBE) is initiated. While the Chip Erase cycle is in progress, the Status Register may be read to check the value of the (BUSY) bit. The (BUSY) bit is “1” during the self-timed Chip Erase cycle, and is “0” when it is completed. At some unspecified time before the cycle is completed, the Write Enable Latch (WEL) bit is reset. The Chip Erase (CE) instruction is executed only if both Block Protect (BP1, BP0) bits are set at “0”. The Chip Erase (CE) instruction is ignored if one or more blocks are protected. Deep Power-Down (DP) Executing the Deep Power-Down (DP) instruction is the only way to put the device in the lowest power consumption mode (the Deep Power-Down mode). It can also be used as an extra software protection mechanism because in this mode, the device ignores all Write, Program, and Erase instructions. Driving Chip Select (S#) High will deselect the device, and put the device in Standby mode (if there is no internal cycle currently in progress). Note that this is not the Deep Power-Down mode. Deep Power-down mode can only be entered by executing the Deep Power-Down (DP) instruction which reduces the standby current from ICC1 to ICC2 as specified in Table 13. Once the device has entered the Deep Power-Down mode, all instructions are ignored except for the Release from Deep Power-Down and Read Electronic Signature (RES) instruction. This releases the device from this mode. The Release from Deep Power-Down (RES) and Read Device ID instruction also allows the ID of the device to be output through Serial Data Output (Q). The Deep Power-Down mode automatically stops at Power-down, and the device always powers up in the Standby mode. The Deep Power-Down (DP) instruction is entered by driving Chip Select (S#) Low, followed by the instruction code on Serial Data Input (D). Chip Select (S#) must be driven Low for the entire duration of the sequence. The instruction sequence is shown in Figure 19. Chip Select (S#) must be driven High after the eighth bit of the instruction code has been latched in, otherwise the Deep Power-down (DP) instruction will not be executed. As soon as Chip Select (S#) is driven High, it requires a delay of tDP before the supply current is reduced to ICC2 and the Deep Power-Down mode is entered. Any Deep Power-Down (DP) instruction executed while an Erase, Program or Write cycle is in progress, is rejected without having any effects on the cycle that is in progress. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 16 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Release from Deep Power-Down (RES) and Read Device ID Once the device has entered the Deep Power-Down mode, all instructions are ignored except the Release from Deep Power-Down (RES) and Read Device ID instruction. Executing this instruction will take the device out of the Deep Power-Down mode. The instruction can also be used to read the 8-bit Device ID of the device on Serial Data Output (Q). The Release from Deep Power-Down (RES) and Read Device ID instruction always provides access to the Device ID of the device, and can be applied even if the Deep Power-Down mode has not been entered, except when an Erase, Program, or Write Status Register cycle is in progress, While an Erase, Program or Write Status Register cycle is in progress, any Release from Deep Power-Down (RES) and Read Device ID instruction is not decoded and has no effect on the cycle that is in progress. The device features an 8-bit Device ID (value for the EM25LV512 is 05h). This can be read using the Release from Deep Power-Down (RES) and Read Device ID instruction. The device is first selected by driving Chip Select (S#) Low. The instruction code is followed by 3 dummy bytes with each bit being latched in on Serial Data Input (D) during the rising edge of Serial Clock (C). Then, the 8-bit Device ID, stored in the memory, is shifted out on Serial Data Output (Q) with each bit being shifted out during the falling edge of Serial Clock (C). The instruction sequence is shown in Figure 20. The Release from Deep Power-Down (RES) and Read Device ID instruction is terminated by driving Chip Select (S#) High after the Device ID has been read at least once. Sending additional clock cycles on Serial Clock (C), while Chip Select (S#) is driven Low, causes the Device ID to be output repeatedly. When Chip Select (S#) is driven High, the device is put in the Standby mode. If the device was previously in the Deep Power-Down mode, the transition to the Standby mode is delayed by tRES2. Chip Select (S#) must remain High for at least tRES2(max) as specified in Table 14. Once in the Standby mode, the device waits to be selected so that it can receive, decode, and execute instructions. Driving Chip Select (S#) High after the 8-bit instruction byte is received by the device, but before the whole of the 8-bit Device ID is transmitted for the first time (as shown in Figure 21), still insures that the device is taken out of the Deep Power-Down mode. It however, incurs a delay (tRES1) before the device is put in Standby mode. Chip Select (S#) must remain High for at least tRES1(max), as specified in Table 14. Once in the Standby mode, the device waits to be selected so that it can receive, decode, and execute instructions. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 17 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Read Manufacturer and Device ID (RDID) The Read Manufacturer/Device ID (RDID) instruction provides both the JEDEC assigned manufacturer ID and the specific device ID. The Read Manufacture/Device ID (RDID) instruction is very similar to the Release from Deep Power-Down (RES) and Read Device ID instruction. The instruction is initiated by driving the Chip Select (S#) Low and shifting the instruction code “90h” followed by a 24-bit address (A23-A0) of 000000h. After which, the Manufacturer ID for ELAN (7Fh, 7Fh, 1Fh) and the Device ID (10h) are shifted out on the falling edge of the serial clock (C) with the most significant bit (MSB) shifted out first as shown in Figure 22. If the 24-bit address is initially set to 000001h, the Device ID will be read first and then followed by the Manufacturer ID. The Manufacturer and Device ID can be read continuously, alternating from one to the other. The instruction is completed by driving Chip Select (S#) High. Power-Up and Power-Down At Power-up and Power-down, the device must not be selected (that is, the Chip Select, S#, must follow the voltage applied on VCC) until VCC reaches the correct value: Vcc(min) at Power-up, and then for a further delay of tVSL Vss at Power-down Usually a simple pull-up resistor on Chip Select (S#) is used to insure safe and proper Power-up and Power-down. To prevent data corruption and inadvertent write during power up, a Power On Reset (POR) circuit is included in the device. The logic inside the device is held at reset when VCC is less than the POR threshold value. All operations of VWI are disabled, and the device does not respond to any instruction. Moreover, the device ignores all Write Enable (WREN), Page Program (PP), Block Erase (BE), Chip Erase(CE), and Write Status Register (WRSR) instructions until a time delay of tPUW has elapsed after the instant where VCC rises above the VWI threshold. However, the device may not operate correctly if VCC remains below VCC(min) at such time. No Write Status Register, Program, or Erase instruction should be sent until– tPUW after Vcc passed the VWI threshold tVSL after Vcc passed the Vcc(min) level These values are specified in Table 8. If the delay (tVSL) has elapsed after VCC has risen above VCC(min), the device can be selected for READ instructions even if the tPUW delay has not yet fully elapsed. This specification is subject to change without further notice. (11.08.2004 V1.0) Page 18 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION At Power-up, the device is in the following state: The device is in the Standby mode (not the Deep Power-Down mode). The Write Enable Latch (WEL) bit is reset. At Power-down, when VCC drops from the operating voltage to below the POR threshold value (VWI), all operations are disabled and the device does not respond to any instruction. If a Power-down occurs while a Write, Program, or Erase cycle is in progress, some data corruption may occur. VCC VCC(max) Program, Erase and W rite Commands are Rejected by the Device Chip Selection Not Allowed VCC(min) Reset State of the Device VWI tPUW tVSL Read Access Allowed Device Fully Accessible time Figure 4: Power-up Timing Symbol VWI tVSL tPUW Parameter Write Inhibit Voltage VCC(min) to S# low Time Delay to Write Instruction Min 1 10 1 Max 2 10 Unit V µs ms Table 8: Power-Up Timing and VWI Threshold Voltage This specification is subject to change without further notice. (11.08.2004 V1.0) Page 19 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Initial Delivery State The device is delivered with the memory array erased, all bits are set to “1” (each byte contains FFh). The Status Register contains 00h (all Status Register bits are set to “0”) Maximum Rating Stressing the device above the rating listed in the “Absolute Maximum Ratings" (see table below) may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Symbol TSTG TLEAD VIO VCC VESD Storage Temperature Lead Temperature during Soldering (20 seconds max) Input and Output Voltage (with respect to ground) Supply Voltage Electrostatic Discharge Voltage (Human body model) 2 1 Parameter Min -65 Max 150 235 Unit °C °C V V V -0.6 -0.6 -2000 4.0 4.0 2000 Notes: 1. IPC/JEDEC J-STD-020A 2. JEDEC Std JESD22-A114A (C1=100pF, R1=1500Ω, R2=500Ω) Table 9: Absolute Maximum Ratings DC and AC Parameters This section summarizes the operating and measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC Characteristic tables are derived from tests performed under the Measurement Conditions summarized in the relevant tables. Symbol VCC TA Supply Voltage Ambient Operating Temperature Parameter Min 2.7 -40 Max 2.6 85 Unit V °C Table 10: Operating Conditions Symbol CL Load Capacitance Input Rise and Fall Times Input Pulse Voltage Input and Output Timing Reference Voltage Note: Output Hi-Z is defined as the point where data out is no longer driven. Parameter Min 30 Max 5 Unit pF ns V V 0.2VCC to 0.8 VCC 0.3VCC to 0.7 VCC Table 11: AC Measurement Conditions This specification is subject to change without further notice. (11.08.2004 V1.0) Page 20 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION 0.8VCC 0.7VCC 0.2VCC 0.3VCC Figure 5: AC Measurement I/O Waveform Symbol VOUT CIN Input Parameter Output Capacitance (Q) Test Condition VOUT=0V VIN=0V Min Max 8 6 Unit pF pF Note: Sampled only, not 100% tested, at TA=25°C and a frequency of 20MHz. Table 12: Capacitance Symbol ILI ILO ICC1 ICC2 ICC3 ICC4 ICC5 ICC6 ICC7 VIL VIH VOL VOH Parameter Input Leakage Current Output Leakage Current Standby Current Deep Power-down Current Operating Current (Read) Operating Current (PP) Operating Current (WRSR) Operating Current (BE) Operating Current (CE) Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Test Condition (in addition to those in Table 10) Min Max ±2 ±2 Unit µA µA µA µA mA mA mA mA mA V V V V S#=VCC, VIN=VSS or VCC S#=VCC, VIN=VSS or VCC C=0.1 VCC/0.9 VCC at 25MHz, Q=open S#=VCC S#=VCC S#=VCC S#=VCC -0.5 0.7VCC IOL=1.6mA IOH=-100µA VCC-0.2 50 5 4 15 15 15 15 0.3 VCC VCC+0.4 0.4 Table 13: DC Characteristics This specification is subject to change without further notice. (11.08.2004 V1.0) Page 21 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Test Conditions Specified in Table 10 and Table 11 Symbol fC fR tCH1 tCL 1 Alt. fC Parameter Clock frequency for the following instructions: FAST_READ, PP, SE, BE, DP, RES, RDID, WREN, WRDI, RDSR, WRSR Clock frequency for READ instructions Min D.C. D.C. 18 18 Type Max 33 20 Unit MHZ MHZ ns ns V/ns ns ns ns ns ns ns ns tCLH tCLL Clock High Time Clock Low Time Clock Slew Rate (peak to peak) 2 0.1 10 10 5 5 10 10 100 15 15 0 10 10 10 10 15 20 3 3 1.8 3 2 40 40 15 5 60 60 tSLCH tCHSL tDVCH tCHDX tCHSH tSHCH tSHSL tSHQZ2 tCLQV tCLQX tHLCH tCHHH tHHCH tCHHL tHHQX2 tHLQZ2 tDP 2 tCSS S# Active Setup Time (relative to C) S# Not Active Hold Time (relative to C) tDSU tDH Data in Setup Time Data in Hold Time S# Active Hold Time (relative to C) S# Not Active Setup Time (relative to C) tCSH tDIS tV tHO S# Deselect Time Output Disable Time Clock Low to Output Valid Output Hold Time Hold# Setup Time (relative to C) Hold# Hold Time (relative to C) Hold Setup Time (relative to C) Hold Hold Time ((relative to C) ns ns ns ns ns ns ns ns ns µs µs µs ms ms ms ms tLZ tHZ Hold to Output Low-Z Hold# to Output High-Z S# High to Deep Power-down Mode S# High to Standby Mode without Electronic Signature Read S# High to Standby Mode with Electronic Signature Read Write Status Register Cycle Time Page Program Cycle Time Block Erase Cycle Time Chip Erase Cycle Time tRES12 tRES2 tW tPP tBE tCE 2 Table 14: AC Characteristics This specification is subject to change without further notice. (11.08.2004 V1.0) Page 22 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Instruction and Sequence Timing Diagrams tSHSL S# tCHSL C tDVCH D tCHDX M SB IN H igh Im pedance tCLCH LSB IN tC HCL tSLC H tCHSH tSH CH Q Figure 6: Serial Input Timing S# tC H H L C tH L Q Z tC H H H tH H Q X tH L C H tH H C H Q D H O LD # Figure 7: Hold Timing S# tC H C tC L Q V tC L Q V tC L Q X tC L tS H Q Z tC L Q X Q tQ L Q H tQ H Q L D A D D R L S B IN LSB O U T Figure 8: Output Timing This specification is subject to change without further notice. (11.08.2004 V1.0) Page 23 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION C Hold# Hold Condition Hold Condition Figure 9: Hold Condition Activation S# 0 1 2 3 4 5 6 7 C In stru ctio n D Hig h Im ped anc e Q Figure 10: Write Enable (WREN) Sequence S# 0 1 2 3 4 5 6 7 C In s t r u c t i o n D H i g h I m ped ance Q Figure 11: Write Disable (WRDI) Sequence This specification is subject to change without further notice. (11.08.2004 V1.0) Page 24 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION S# 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 C Instruction D Q Status Register Out High Impedance Status Register Out 76543210765432107 MSB MSB Figure 12: Read Status Register (RDSR) Sequence S# 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 C Instruction D Q Satus Register In 7 6 5 4 3 2 1 0 High Impedance MSB Figure 13: Write Status Register (WRSR) Sequence S# 0 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38 39 C Instruction D 24-Bit Address 23 22 21 High Impedance 3210 Data Out 1 Data Out 2 MSB Q 765432107 MSB Figure 14: Read Data Bytes (READ) Sequence This specification is subject to change without further notice. (11.08.2004 V1.0) Page 25 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION S# 0 C Instruction D Q High Impedance 24-Bit Address 23 22 21 3 2 1 0 1 2 3 4 5 6 7 8 9 10 28 29 30 31 S# C 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Dummy Byte D 7 6 5 4 3 2 1 0 Data Out 1 Q 7 MSB 6 5 4 3 2 1 0 7 MSB 6 5 Data Out 2 4 3 2 1 0 7 MSB Figure 15: Read Data Bytes at Higher Speed (Fast-Read) Sequence S# 0 C 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38 39 Instruction 24-Bit Address 23 22 21 Data Byte 1 D 3 2 1 0 7 6 5 4 3 2 1 0 MSB S# MSB 2702 2703 2704 2705 2706 2707 2708 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 C Data Byte 2 D Data Byte 3 Data Byte 256 7 MSB 6 5 4 3 2 1 0 7 MSB 6 5 4 3 2 1 0 7 MSB 6 5 4 3 2 1 0 Figure 16. Page Program (PP) Sequence This specification is subject to change without further notice. (11.08.2004 V1.0) Page 26 of 30 2709 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION S# 0 1 2 3 4 5 6 7 8 9 29 30 31 C I n st r u ct io n 24- B it A ddr es s 23 22 2 1 0 D Figure 17: Block Erase Sequence S# 0 C 1 2 3 4 5 6 7 In s t r u c t i o n D Figure 18: Chip Erase Sequence S# 0 1 2 3 4 5 6 7 tDP C In s t r u c tio n D S tan d- by M o de D e e p P o w e r - d o wn M ode Figure 19: Deep Power-Down Sequence S# 0 C 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38 In s tru c tio n D 3 D u m m y B yte s 23 22 21 3 2 1 0 D e v ic e I D tR ES2 H igh Im pedanc e MS B 7 MS B Q 6 5 4 3 2 1 0 D eep Power-dow n M ode Stand-by M ode Figure 20: Release from Deep Power-down (RES) and Read Device ID Sequence This specification is subject to change without further notice. (11.08.2004 V1.0) Page 27 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION S# 0 1 2 3 4 5 6 7 tRES1 C Ins truction D H igh Im pedance Q Deep Power-down M ode Stand-by M ode Figure 21: Release from Deep Power-down (RES) Sequence S# 0 1 2 3 4 5 6 7 8 9 10 28 29 30 31 32 33 34 35 36 37 38 C Instruction D 24-Bit Address 23 22 21 MSB 321076543210 Manufacturer ID (7Fh) MSB Q S# 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 C D 765432107654321076543210 Manufacturer ID (7Fh) Manufacturer ID (1Fh) MSB Device ID (10 h) Q MSB MSB Figure 22: Read Manufacturer and Device ID (RDID) Sequence This specification is subject to change without further notice. (11.08.2004 V1.0) Page 28 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION Appendix ORDERING INFORMATION (Standard Products) The order number is defined by a combination of the following elements. EM25LV512 -33 M S Description S = PB (Lead) free package Package Type M = SO8 (150mm) KGB = Known Good Dice (for wafer dice sell) Operation Speed / Voltage 25 = 25MHz 33 = 33MHz ** = VDD = 2.7V~3.6V **R = VDD = 3.0~3.6V Device Number/Description EM25LV512 512 Kbit (64K x 8 Bits) Serial Flash Memory 2.7 ~ 3.6 Volt only Read, Program and Erase This specification is subject to change without further notice. (11.08.2004 V1.0) Page 29 of 30 EM25LV512 512 K (64K x 8) Bits Serial Flash Memory SPECIFICATION ORDERING INFORMATION (Non-Standard Products) For Known Good Dice (KGD), please contact ELAN Microelectronics at the following contact information or its representatives. ELAN MICROELECTRONICS CORPORATION USA: Elan Information Technology Group 1821 Saratoga Ave., Suite 250 Saratoga, CA 95070 USA Tel: +1 408 366-8223 Fax: +1 408 366-8220 Headquarters: No. 12, Innovation Road 1 Science-based Industrial Park Hsinchu, Taiwan, R.O.C. 30077 Tel: +886 3 563-9977 Fax: +886 3 563-9966 http://www.emc.com.tw Hong Kong: Elan (HK) Microelectronics Corporation, Ltd. Rm. 1005B, 10/F Empire Centre 68 Mody Road, Tsimshatsui Kowloon , HONG KONG Tel: +852 2723-3376 Fax: +852 2723-7780 elanhk@emc.com.hk Shenzhen: Elan Microelectronics Shenzhen, Ltd. SSMEC Bldg., 3F, Gaoxin S. Ave. Shenzhen Hi-Tech Industrial Park Shenzhen, Guandong, CHINA Tel: +86 755 2601-0565 Fax: +86 755 2601-0500 Europe: Elan Microelectronics Corp. (Europe) Siewerdtstrasse 105 8050 Zurich, SWITZERLAND Tel: +41 43 299-4060 Fax: +41 43 299-4079 http://www.elan-europe.com Shanghai: Elan Microelectronics Shanghai Corporation, Ltd. 23/Bldg. #115 Lane 572, Bibo Road Zhangjiang Hi-Tech Park Shanghai, CHINA Tel: +86 021 5080-3866 Fax: +86 021 5080-4600 This specification is subject to change without further notice. (11.08.2004 V1.0) Page 30 of 30