FUJITSU SEMICONDUCTOR DATA SHEET DS05-20870-4E FLASH MEMORY CMOS 8M (1M × 8) BIT MBM29LV080A-70/-90/-12 ■ FEATURES • Address specification is not necessary during command sequence • Single 3.0 V read, program and erase Minimizes system level power requirements • Compatible with JEDEC-standard commands Uses same software commands as E2PROMs • Compatible with JEDEC-standard world-wide pinouts 40-pin TSOP (I) (Package suffix: PTN-Normal Bend Type, PTR-Reversed Bend Type) • Minimum 100,000 program/erase cycles (Continued) ■ PRODUCT LINE UP Part No. MBM29LV080A VCC = 3.3 V +0.3 V –0.3 V -70 — — VCC = 3.0 V +0.6 V –0.3 V — -90 -12 Max. Address Access Time (ns) 70 90 120 Max. CE Access Time (ns) 70 90 120 Max. OE Access Time (ns) 30 35 50 Ordering Part No. ■ PACKAGE 40-pin plastic TSOP (I) 40-pin plastic TSOP (I) Marking Side Marking Side (FPT-40P-M06) (FPT-40P-M07) MBM29LV080A-70/-90/-12 (Continued) • High performance 70 ns maximum access time • Sector erase architecture 16 sectors of 64K bytes each Any combination of sectors can be concurrently erased. Also supports full chip erase • Embedded EraseTM* Algorithms Automatically pre-programs and erases the chip or any sector • Embedded programTM* Algorithms Automatically programs and verifies data at specified address • Data Polling and Toggle Bit feature for detection of program or erase cycle completion • Ready/Busy output (RY/BY) Hardware method for detection of program or erase cycle completion • Automatic sleep mode When addresses remain stable, automatically switches themselves to low power mode • Low VCC write inhibit ≤ 2.5 V • Hardware RESET pin Resets internal state machine to the read mode • Erase Suspend/Resume Suspends the erase operation to allow a read data and/or program in another sector within the same device • Sector protection Hardware method disables any combination of sectors from program or erase operations • Sector Protection set function by Extended sector protect command • Temporary sector unprotection Temporary sector unprotection via the RESET pin * : Embedded EraseTM and Embedded ProgramTM are trademarks of Advanced Micro Devices, Inc. 2 MBM29LV080A-70/-90/-12 ■ GENERAL DESCRIPTION The MBM29LV080A is a 16M-bit, 3.0 V-only Flash memory organized as 1M bytes of 8 bits each. The 1M bytes of data is divided into 32 sectors of 64K bytes of flexible erase capability. The 8 bits of data will appear on DQ0 to DQ7. The MBM29LV080A is offered in a 40-pin TSOP (I) package. The device is designed to be programmed in-system with the standard system 3.0 V VCC supply. 12.0 V VPP and 5.0 V VCC are not required for write or erase operations. The device can also be reprogrammed in standard EPROM programmers. The standard MBM29LV080A offers access times of 70 ns and 120 ns, allowing operation of high-speed microprocessors without wait states. To eliminate bus contention the device has separate chip enable (CE), write enable (WE), and output enable (OE) controls. The MBM29LV080A is pin and command set compatible with JEDEC standard E2PROMs. Commands are written to the command register using standard microprocessor write timings. Register contents serve as input to an internal state-machine which controls the erase and programming circuitry. Write cycles also internally latch addresses and data needed for the programming and erase operations. Reading data out of the device is similar to reading from 5.0 V and 12.0 V Flash or EPROM devices. The MBM29LV080A is programmed by executing the program command sequence. This will invoke the Embedded Program Algorithm which is an internal algorithm that automatically times the program pulse widths and verifies proper cell margins. Typically, each sector can be programmed and verified in about 0.5 seconds. Erase is accomplished by executing the erase command sequence. This will invoke the Embedded Erase Algorithm which is an internal algorithm that automatically preprograms the array if it is not already programmed before executing the erase operation. During erase, the device automatically times the erase pulse widths and verifies proper cell margins. Any individual sector is typically erased and verified in 1.0 second. (If already preprogrammed.) The device also features a sector erase architecture. The sector mode allows each sector to be erased and reprogrammed without affecting other sectors. The MBM29LV080A is erased when shipped from the factory. Fujitsu has implemented an Erase Suspend feature that enables the user to put erase on hold for any period of time to read data from or program data to a mom-busy sector. Thus, true background erase can be achieved. The device features single 3.0 V power supply operation for both read and write functions. Internally generated and regulated voltages are provided for the program and erase operations. A low VCC detector automatically inhibits write operations on the loss of power. The end of program or erase is detected by Data Polling of DQ7, by the Toggle Bit feature on DQ6, or the RY/BY output pin. Once the end of a program or erase cycle has been comleted, the device internally resets to the read mode. The MBM29LV080A also has a hardware RESET pin. When this pin is driven low, execution of any Embedded Program Algorithm or Embedded Erase Algorithm is terminated. The internal state machine is then reset to the read mode. The RESET pin may be tied to the system reset circuitry. Therefore, if a system reset occurs during the Embedded Program Algorithm or Embedded Erase Algorithm, the device is automatically reset to the read mode and will have erroneous data stored in the address locations being programmed or erased. These locations need re-writing after the Reset. Resetting the device enables the system’s microprocessor to read the boot-up firmware from the Flash memory. Fujitsu’s Flash technology combines years of Flash memory manufacturing experience to produce the highest levels of quality, reliability, and cost effectiveness. The MBM29LV080A memory electrically erases all bits within a sector simultaneously via Fowler-Nordhiem tunneling. The bytes are programmed one byte at a time using the EPROM programming mechanism of hot electron injection. 3 MBM29LV080A-70/-90/-12 ■ FLEXIBLE SECTOR-ERASE ARCHITECTURE • • • • Sixteen 64K byte sectors Loading the sector erase buffer may be done in any sequence and with any number of sectors (0 to 15). Individual-sector or multiple-sector erase capability Sector protection is user-definable. FFFFFH 64 Kbytes EFFFFH 64 Kbytes DFFFFH 64 Kbytes CFFFFH 64 Kbytes BFFFFH 64 Kbytes AFFFFH 64 Kbytes 9FFFFH 64 Kbytes 8FFFFH 64 Kbytes 7FFFFH 64 Kbytes 6FFFFH 64 Kbytes 5FFFFH 64 Kbytes 4FFFFH 64 Kbytes 3FFFFH 64 Kbytes 2FFFFH 64 Kbytes 1FFFFH 64 Kbytes 0FFFFH 64 Kbytes 00000H 4 MBM29LV080A-70/-90/-12 ■ BLOCK DIAGRAM RY/BY Buffer DQ0 to DQ7 RY/BY VCC VSS WE RESET Erase Voltage Generator Input/Output Buffers State Control Command Register Program Voltage Generator Chip Enabl Output Enable Logic CE OE STB Low VCC Detector Time for Program/Erase STB Data Latch Y-Decoder Y-Gating X-Decoder Cell Matrix Address Latch A0 to A19 5 MBM29LV080A-70/-90/-12 ■ CONNECTION DIAGRAMS TSOP (I) A16 A15 A14 A13 A12 A11 A9 A8 WE RESET N.C. RY/BY A18 A7 A6 A5 A4 A3 A2 A1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 (Marking Side) MBM29LV080A 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 A17 VSS N.C. A19 A10 DQ7 DQ6 DQ5 DQ4 VCC VCC N.C. DQ3 DQ2 DQ1 DQ0 OE VSS CE A0 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 A0 CE VSS OE DQ0 DQ1 DQ2 DQ3 N.C. VCC VCC DQ4 DQ5 DQ6 DQ7 A10 A19 N.C. VSS A17 FPT-40P-M06 A1 A2 A3 A4 A5 A6 A7 A18 RY/BY N.C. RESET WE A8 A9 A11 A12 A13 A14 A15 A16 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (Marking Side) MBM29LV080A FPT-40P-M07 6 MBM29LV080A-70/-90/-12 ■ LOGIC SYMBOL Table 1 MBM29LV080A Pin Configuration Pin Function Address Inputs A0 to A19 20 Data Inputs/Outputs DQ0 to DQ7 A0 to A19 8 DQ0 to DQ7 CE OE WE RESET RY/BY CE Chip Enable OE Output Enable WE Write Enable RY/BY Ready/Busy Output RESET Hardware Reset Pin/ Temporary Sector Unprotection N.C. Pin Not Connected Internally VSS Device Ground VCC Device Power Supply Table 2 MBM29LV080A User Bus Operation Operation CE OE WE A0 A1 A6 A9 A10 Auto-Select Manufacture Code (1) L L H L L L VID L Code H Auto-Select Device Code (1) L L H H L L VID L Code H Read (2) L L H A0 A1 A6 A9 A10 DOUT H Standby H X X X X X X X HIGH-Z H Output Disable L H H X X X X X HIGH-Z H Write (Program/Erase) L H L A0 A1 A6 A9 A10 DIN H Enable Sector Protection (3), (4) L VID L H L VID X X H Verify Sector Protection (3), (4) L L H L H L VID L Code H Temporary Sector Unprotection (5) X X X X X X X X X VID Reset (Hardware)/Standby X X X X X X X X HIGH-Z L Legend: L = VIL, H = VIH, X = VIL or VIH. DQ0 to DQ7 RESET = pulse input. See DC Characteristics for voltage levels. Notes: 1. Manufacturer and device codes may also be accessed via a command register write sequence. See Table 6. 2. WE can be VIL if OE is VIL, OE at VIH initiates the write operations. 3. Refer to the section on Sector Protection. 4. VCC = 3.3 V ±10% 5. It is also used for the extended sector protection. 7 MBM29LV080A-70/-90/-12 ■ FUNCTIONAL DESCRIPTION Read Mode The MBM29LV080A has two control functions which must be satisfied in order to obtain data at the outputs. CE is the power control and should be used for a device selection. OE is the output control and should be used to gate data to the output pins if a device is selected. Address access time (tACC) is equal to the delay from stable addresses to valid output data. The chip enable access time (tCE) is the delay from stable addresses and stable CE to valid data at the output pins. The output enable access time is the delay from the falling edge of OE to valid data at the output pins. (Assuming the addresses have been stable for at least tACC - tCE time.) See Figure 5.1 for timing specifications. Standby Mode There are two ways to implement the standby mode on the MBM29LV080A device, one using both the CE and RESET pins; the other via the RESET pin only. When using both pins, a CMOS standby mode is achieved with CE and RESET inputs both held at VCC ± 0.3 V. Under this condition the current consumed is less than 5 µA max. During Embedded Algorithm operation, VCC Active current (ICC2) is required even CE = “H”. The device can be read with standard access time (tCE) from either of these standby modes. When using the RESET pin only, a CMOS standby mode is achieved with RESET input held at VSS ± 0.3 V (CE = “H” or “L”). Under this condition the current is consumed is less than 5 µA max. Once the RESET pin is taken high, the device requires tRH of wake up time before outputs are valid for read access. In the standby mode the outputs are in the high impedance state, independent of the OE input. Automatic Sleep Mode There is a function called automatic sleep mode to restrain power consumption during read-out of MBM29LV080A data. This mode can be used effectively with an application requested low power consumption such as handy terminals. To activate this mode, MBM29LV080A automatically switchs itself to low power mode when MBM29LV080A addresses remain stably during access time of 150 ns. It is not necessary to control CE, WE, and OE on the mode. Under the mode, the current consumed is typically 1 µA (CMOS level). Standard address access timings provide new data when addresses are changed. While in sleep mode, output data is latched and always available to the system. Output Disable With the OE input at a logic high level (VIH), output from the device is disabled. This will cause the output pins to be in a high impedance state. Autoselect The autoselect mode allows the reading out of a binary code from the device and will identify its manufacturer and type. This mode is intended for use by programming equipment for the purpose of automatically matching the device to be programmed with its corresponding programming algorithm. This mode is functional over the entire temperature range of the device. To activate this mode, the programming equipment must force VID (11.5 V to 12.5 V) on address pin A9. Two identifier bytes may then be sequenced from the device outputs by toggling address A0 from VIL to VIH. All addresses are DON’T CARES except A0, A1, A6, and A10. (See Table 3.1.) 8 MBM29LV080A-70/-90/-12 The manufacturer and device codes may also be read via the command register, for instances when the MBM29LV080A is erased or programmed in a system without access to high voltage on the A9 pin. The command sequence is illustrated in Table 6. (Refer to Autoselect Command section.) Byte 0 (A0 = VIL) represents the manufacture’s code (Fujitsu = 04H) and byte 1 (A0 = VIH) represents the device identifier code MBM29LV080A = 38H. All identifiers for manufactures and device will exhibit odd parity with DQ7 defined as the parity bit. In order to read the proper device codes when executing the autoselect, A1 must be VIL. (See Tables 3.1 and 3.2.) In order to determine which sectors are write protected, A1 must be at VIH while running through the sector addresses; if the selected sector is protected, a logical ‘1’ will be output on DQ0 (DQ0 = 1). Table 3.1 MBM29LV080A Sector Protection Verify Autoselect Code A16 to A19 A10 A6 A1 A0 Code (HEX) Manufacture’s Code X VIL VIL VIL VIL 04H Device Code X VIL VIL VIL VIH 38H Sector Addresses VIL VIL VIH VIL 01H* Type MBM29LV080A Sector Protection *: Outputs 01H at protected sector addresses and outputs 00H at unprotected sector addresses. Table 3.2 Expanded Autoselect Code Table Code DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 Manufacture’s Code 04H 0 0 0 0 0 1 0 0 Device Code 38H 0 0 1 1 1 0 0 0 01H 0 0 0 0 0 0 0 1 Type MBM29LV080A Sector Protection 9 MBM29LV080A-70/-90/-12 Table 4 Sector Address Tables 10 Sector Address A19 A18 A17 A16 Address Range SA0 0 0 0 0 00000H to 0FFFFH SA1 0 0 0 1 10000H to 1FFFFH SA2 0 0 1 0 20000H to 2FFFFH SA3 0 0 1 1 30000H to 3FFFFH SA4 0 1 0 0 40000H to 4FFFFH SA5 0 1 0 1 50000H to 5FFFFH SA6 0 1 1 0 60000H to 6FFFFH SA7 0 1 1 1 70000H to 7FFFFH SA8 1 0 0 0 80000H to 8FFFFH SA9 1 0 0 1 90000H to 9FFFFH SA10 1 0 1 0 A0000H to AFFFFH SA11 1 0 1 1 B0000H to BFFFFH SA12 1 1 0 0 C0000H to CFFFFH SA13 1 1 0 1 D0000H to DFFFFH SA14 1 1 1 0 E0000H to EFFFFH SA15 1 1 1 1 F0000H to FFFFFH MBM29LV080A-70/-90/-12 Write Device erasure and programming are accomplished via the command register. The contents of the register serve as inputs to the internal state machine. The state machine outputs dictate the function of the device. The command register itself does not occupy any addressable memory location. The register is a latch used to store the commands, along with the address and data information needed to execute the command. The command register is written by bringing WE to VIL, while CE is at VIL and OE is at VIH. Addresses are latched on the falling edge of WE or CE, whichever happens later; while data is latched on the rising edge of WE or CE, whichever happens first. Standard microprocessor write timings are used. Refer to AC Write Characteristics and the Erase/Programming Waveforms for specific timing parameters. Sector Protection The MBM29LV080A features hardware sector protection. This feature will disable both program and erase operations in any number of sectors (0 through 15). The sector protection feature is enabled using programming equipment at the user’s site. The device is shipped with all sectors unprotected. To activate this mode, the programming equipment must force VID on address pin A9 and control pin OE, (suggest VID = 11.5 V), CE = VIL, A0 = A6 = VIL, and A1 = VIH. The sector addresses (A19, A18, A17,and A16) should be set to the sector to be protected. Tables 4 and 5 define the sector address for each of the sixteen (16) individual sectors. Programming of the protection circuitry begins on the falling edge of the WE pulse and is terminated with the rising edge of the same. Sector addresses must be held constant during the WE pulse. See figures 13 and 21 for sector protection waveforms and algorithm. To verify programming of the protection circuitry, the programming equipment must force VID on address pin A9 with CE and OE at VIL and WE at VIH. Scanning the sector addresses (A19, A18, A17,and A16) while (A10, A6, A1, A0) = (0, 0, 1, 0) will produce a logical “1” code at device output DQ0 for a protected sector. Otherwise the devices will read 00H for unprotected sector. In this mode, the lower order addresses, except for A0, A1, A6, and A10 are DON’T CARES. Address locations with A1 = VIL are reserved for Autoselect manufacturer and device codes. It is also possible to determine if a sector is protected in the system by writing an Autoselect command. Performing a read operation at the address location XX02H, where the higher order addresses (A19, A18, A17,and A16). are the sector address will produce a logical “1” at DQ0 for a protected sector. See Tables 3.1 and 3.2 for Autoselect codes. Temporary Sector Unprotection This feature allows temporary unprotection of previously protected sectors of the MBM29LV080A device in order to change data. The Sector Unprotection mode is activated by setting the RESET pin to high voltage (12 V). During this mode, formerly protected sectors can be programmed or erased by selecting the sector addresses. Once the 12 V is taken away from the RESET pin, all the previously protected sectors will be protected again. See figure 15 and 22. 11 MBM29LV080A-70/-90/-12 Table 5 MBM29LV080A Standard Command Definitions Command Sequence (Notes 1, 2, 3) Second Fourth Bus Bus First Bus Third Bus Fifth Bus Sixth Bus Bus Read/Write Write Write Cycle Write Cycle Write Cycle Write Cycle Write Cycle Cycle Cycles Req'd Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data Read/Reset (Note 5) 1 XXXH F0H Read/Reset (Note 5) 3 Autoselect — — — — — — — — — — XXXH AAH XXXH 55H XXXH F0H RA RD — — — — 3 XXXH AAH XXXH 55H XXXH 90H — — — — — — Byte Program (Notes 3, 4) 4 XXXH AAH XXXH 55H XXXH A0H PA PD — — — — Chip Erase 6 XXXH AAH XXXH 55H XXXH 80H XXXH AAH XXXH 55H XXXH 10H Sector Erase (Note 3) 6 XXXH AAH XXXH 55H XXXH 80H XXXH AAH XXXH 55H Sector Erase Suspend 1 XXXH B0H Sector Erase Resume 1 XXXH 30H SA 30H Notes: 1. Address bit = X = “H” or “L”. 2. Bus operations are defined in Table 2. 3. RA=Address of the memory location to be read. PA=Address of the memory location to be programmed. Addresses are latched on the falling edge of the WE pulse. SA=Address of the sector to be erased. The combination of A19, A18, A17, and A16 will uniquely select any sector. 4. RD=Data read from location RA during read operation. PD=Data to be programmed at location PA. Data is latched on the rising edge of WE. 5. Both Read/Reset commands are functionally equivalent, resetting the device to the read mode. Command Definitions Device operations are selected by writing specific address and data sequences into the command register. Writing incorrect address and data values or writing them in the improper sequence will reset the devices to read mode. Table 6 defines the valid register command sequences. Note that the Erase Suspend (B0H) and Erase Resume (30H) commands are valid only while the sector Erase operation is in progress. Moreover, both Read/Reset commands are functionally equivalent, resetting the device to the read mode. Please note that commands are always written at DQ0 to DQ7 bits are ignored. 12 MBM29LV080A-70/-90/-12 Table 6 MBM29LV080A Extended Command Definitions Command Sequence Fast Mode Set Fast Program * 1 Fast Mode Reset * 1 Extended Sector Protection *2 Bus Write Cycles Req'd First Bus Write Cycle Second Bus Write Cycle Addr Data Addr Data Addr Data Addr Data 3 XXXH AAH XXXH 55H XXXH 20H — — 2 XXXH A0H PA PD — — — — — — — — SPA 40H SPA SD 2 XXXH 90H XXXH F0H * 4 XXXH 60H SPA 60H Third Bus Write Cycle 3 Fourth Bus Read Cycle SPA:Sector address to be protected. Set sector address (SA) and (A10, A6, A1, A0) = (0, 0, 1, 0). SD: Sector protection verify data. Output 01H at protected sector addresses and output 00H at unprotected sector addresses. *1: This command is valid while Fast Mode. *2: This command is valid while RESET=VID. *3: The data "00H" is also acceptable. Read/Reset Command The read or reset operation is initiated by writing the Read/Reset command sequence into the command register. Microprocessor read cycles retrieve array data from the memory. The device remains enabled for reads until the command register contents are altered. The devices will automatically power-up in the read/reset state. In this case, a command sequence is not required to read data. Standard microprocessor read cycles will retrieve array data. This default value ensures that no spurious alteration of the memory content occurs during the power transition. Refer to the AC Read Characteristics and Waveforms for the specific timing parameters.(See Figures 5.1 and 5.2.) Autoselect Command Flash memories are intended for use in applications where the local CPU alters memory contents. As such, manufacture and device codes must be accessible while the device resides in the target system. PROM programmers typically access the signature codes by raising A9 to a high voltage. However, multiplexing high voltage onto the address lines is not generally desired system design practice. The device contains an Autoselect command operation to supplement traditional PROM programming methodology. The operation is initiated by writing the Autoselect command sequence into the command register. Following the command write, a read cycle from address XX00H retrieves the manufacture code of 04H. A read cycle from address X001H returns the device code (MBM29LV080A = 38H). (See Tables 3.1 and 3.2.) All manufacturer and device codes will exhibit odd parity with the MSB (DQ7) defined as the parity bit. Sector state (protection or unprotection) will be informed address X0002H. Scanning the sector addresses (A19, A18, A17, A16) while (A10, A6, A1, A0) = (0, 0, 1, 0) will produce a logical “1” at device output DQ0 for a protected sector. The programming verification should be perform margin mode on the protected sector. (See Table 2.) To terminate the operation, it is necessary to write the Read/Reset command sequence into the register, and also to write the Autoselect command during the operation, execute it after writing Read/Reset command sequence. 13 MBM29LV080A-70/-90/-12 Byte Programming The device is programmed on a byte-by-byte basis. Programming is a four bus cycle operation. There are two “unlock” write cycles. These are followed by the program set-up command and data write cycles. Addresses are latched on the falling edge of CE or WE, whichever happens later and the data is latched on the rising edge of CE or WE, whichever happens first. The rising edge of CE or WE (whichever happens first) begins programming. Upon executing the Embedded Program Algorithm command sequence, the system is not required to provide further controls or timings. The device will automatically provide adequate internally generated program pulses and verify the programmed cell margin. The automatic programming operation is completed when the data on DQ7 is equivalent to data written to this bit at which time the device returns to the read mode and addresses are no longer latched. (See Table 8, Hardware Sequence Flags.) Therefore, the device requires that a valid address to the device be supplied by the system at this particular instance of time. Hence, Data Polling must be performed at the memory location which is being programmed. Any commands written to the chip during this period will be ignored. If hardware reset occurs during the programming operation, it is impossible to guarantee the data are being written. Programming is allowed in any sequence and across sector boundaries. Beware that a data “0” cannot be programmed back to a “1”. Attempting to do so may either hang up the device (exceed timing limits), or result in an apparent success according to the data polling algorithm but a read from read/reset mode will show that the data is still “0”. Only erase operations can convert “0”s to “1”s. Figure 17 illustrates the Embedded ProgramTM Algorithm using typical command strings and bus operations. Chip Erase Chip erase is a six bus cycle operation. There are two “unlock” write cycles. These are followed by writing the “set-up” command. Two more “unlock” write cycles are then followed by the Chip Erase command. Chip erase does not require the user to program the device prior to erase. Upon executing the Embedded Erase Algorithm command sequence the device will automatically program and verify the entire memory for an all zero data pattern prior to electrical erase. The system is not required to provide any controls or timings during these operations. The automatic erase begins on the rising edge of the last WE pulse in the command sequence and terminates when the data on DQ7 is “1” (See Write Operation Status section.) at which time the device returns to read the mode. Figure 18 illustrates the Embedded EraseTM Algorithm using typical command strings and bus operations. Sector Erase Sector erase is a six bus cycle operation. There are two “unlock” write cycles. These are followed by writing the “set-up” command. Two more “unlock” write cycles are then followed by the Sector Erase command. The sector address (any address location within the desired sector) is latched on the falling edge of WE, while the command (Data = 30H) is latched on the rising edge of WE. After time-out of 50 µs from the rising edge of the last Sector Erase command, the sector erase operation will begin. Multiple sectors may be erased concurrently by writing the six bus cycle operations on Table 6. This sequence is followed with writes of the Sector Erase command to addresses in other sectors desired to be concurrently erased. The time between writes must be less than 50 µs, otherwise that command will not be accepted and erasure will start. It is recommended that processor interrupts be disabled during this time to guarantee this condition. The interrupts can be re-enabled after the last Sector Erase command is written. A time-out of 50 µs from the rising edge of the last WE will initiate the execution of the Sector Erase command(s). If another falling edge of the WE occurs within the 50 µs time-out window the timer is reset. (Monitor DQ3 to determine if the sector erase timer window is still open, see section DQ3, Sector Erase Timer.) Any command other than Sector Erase or Erase Suspend during this time-out period will reset the devices to the read mode, ignoring the previous command string. Resetting the devices once execution has begun will corrupt the data in that sector. In that case, restart the erase on those sectors and allow them to complete. (Refer to the Write Operation Status section 14 MBM29LV080A-70/-90/-12 for Sector Erase Timer operation.) Loading the sector erase buffer may be done in any sequence and with any number of sectors (0 to 15). Sector erase does not require the user to program the devices prior to erase. The device automatically programs all memory locations in the sector(s) to be erased prior to electrical erase. When erasing a sector or sectors the remaining unselected sectors are not affected. The system is not required to provide any controls or timings during these operations. The automatic sector erase begins after the 50 µs time out from the rising edge of the WE pulse for the last sector erase command pulse and terminates when the data on DQ7 is “1” (See Write Operation Status section) at which time the device returns to the read mode. Data polling must be performed at an address within any of the sectors being erased. Multiple Sector Erase Time; [Sector Program Time (Preprogramming) + Sector Erase Time] × Number of Sector Erase. Figure 18 illustrates the Embedded EraseTM Algorithm using typical command strings and bus operations. Erase Suspend/Resume The Erase Suspend command allows the user to interrupt a Sector Erase operation and then perform data reads from or program to a sector not being erased. This command is applicable ONLY during the Sector Erase operation which includes the time-out period for sector erase. The Erase Suspend command will be ignored if written during the Chip Erase operation or Embedded Program Algorithm. Writting the Erase Suspend command during the Sector Erase time-out results in immediate termination of the time-out period and suspension of the erase operation. Writing the Erase Resume command resumes the erase operation. The addresses are “DON’T CARES” when writing the Erase Suspend or Erase Resume commands. When the Erase Suspend command is written during the Sector Erase operation, the device will take a maximum of 20 µs to suspend the erase operation. When the devices have entered the erase-suspended mode, the RY/ BY output pin and the DQ7 bit will be at logic “1”, and DQ6 will stop toggling. The user must use the address of the erasing sector for reading DQ6 and DQ7 to determine if the erase operation has been suspended. Further writes of the Erase Suspend command are ignored. When the erase operation has been suspended, the device defaults to the erase-suspend-read mode. Reading data in this mode is the same as reading from the standard read mode except that the data must be read from sectors that have not been erase-suspended. Successively reading from the erase-suspended sector while the device is in the erase-suspend-read mode will cause DQ2 to toggle. (See the section on DQ2.) After entering the erase-suspend-read mode, the user can program the device by writing the appropriate command sequence for Program. This Program mode is known as the erase-suspend-program mode. Again, programming in this mode is the same as programming in the regular Program mode except that the data must be programmed to sectors that are not erase-suspended. Successively reading from the erase-suspended sector while the devices are in the erase-suspend-program mode will cause DQ2 to toggle. The end of the erasesuspended Program operation is detected by the RY/BY output pin, Data polling of DQ7, or the Toggle Bit (DQ6) which is the same as the regular Program operation. Note that DQ7 must be read from the Program address while DQ6 can be read from any address. To resume the operation of Sector Erase, the Resume command (30H) should be written. Any further writes of the Resume command at this point will be ignored. Another Erase Suspend command can be written after the chip has resumed erasing. 15 MBM29LV080A-70/-90/-12 Extended Command (1) Fast Mode MBM29LV080A has Fast Mode function. This mode dispenses with the initial two unlock cycles required in the standard program command sequence by writing Fast mode command into the command register. In this mode, the required bus cycle for programming is two cycles instead of four bus cycles in normal command. (Do not write erase command in this mode.) The read operation is also executed after exiting this mode. To exit this mode, it is necessary to write Fast Mode Reset command into the command register. (Refer to the Figure 23 Extended algorithm.) The VCC active current is required even CE = VIH during Fast Mode. (2) Fast Programming During Fast Mode, the programming can be executed with two bus cycles operation. The Embedded Program Algorithm is executed by writing program Setup command (A0H) and data write cycles (PA/PD). (Refer to the Figure 23 Extended algorithm.) (3) Extended Sector Protection In addition to normal sector protection, the MBM29LV080A has Extended Sector Protection as extended function. This function enable to protect sector by forcing VID on RESET pin and write a command sequence. Unlike conventional procedure, it is not necessary to force VID and control timing for control pins. The only RESET pin requires VID for sector protection in this mode. The extended sector protect requires VID on RESET pin. With this condition, the operation is initated by writing the Setup command (60H) into the command register. Then, the sector addresses pins (A19, A18, A17, and A16) and (A10, A6, A1, A0) = (0, 0, 1, 0) should be set to the sector to be protected (recommend to set VIL for the other addresses pins), and write extended sector protect command (60H). A sector is typically protected in 250 µs. To verify programming of the protection cicuitry, the sector addresses pins (A19, A18, A17, and A16) and (A10, A6, A1, A0) = (0, 0, 1, 0) should be set and write a command (40H). Following the command write, a logical “1” at device output DQ0 will produce for protected sector in the read operation. If the output data is logical “0”, please repeat to write extended sector protect command (60H) again. To terminate the opetation, it is necessary to set RESET pin to VIH. 16 MBM29LV080A-70/-90/-12 Write Operation Status Table 7 Hardware Sequence Flags Status Embedded Program Algorithm Embedded/Erase Algorithm Erase Suspend Read Erase Suspended Sector) In Progress Erase Erase Suspend Read Suspend (Non-Erase Suspended Sector) Mode Erase Suspend Program (Non-Erase Suspended Sector) Embedded Program Algorithm Exceeded Embedded/Erase Algorithm Time Limits Erase Suspend Program (Non-Erase Suspended Sector) DQ7 DQ6 DQ5 DQ3 DQ2 DQ7 Toggle 0 0 1 0 Toggle 0 1 Toggle 1 1 0 0 Toggle Data Data Data Data Data DQ7 Toggle (Note 1) 0 0 1 (Note 2) DQ7 Toggle 1 0 1 0 Toggle 1 1 N/A DQ7 Toggle 1 0 N/A Notes: 1. Performing successive read operations from any address will cause DQ6 to toggle. 2. Reading the byte address being programmed while in the erase-suspend program mode will indicate logic “1” at the DQ2 bit. However, successive reads from the erase-suspended sector will cause DQ2 to toggle. 3. DQ0 and DQ1 are reserve pins for future use. 4. DQ4 is Fujitsu internal use only. 17 MBM29LV080A-70/-90/-12 DQ7 Data Polling The MBM29LV080A device features Data Polling as a method to indicate to the host that the Embedded Algorithms are in progress or completed. During the Embedded Program Algorithm, an attempt to read the device will produce the complement of the data last written to DQ7. Upon completion of the Embedded Program Algorithm, an attempt to read the device will produce the true data last written to DQ7. During the Embedded Erase Algorithm, an attempt to read the device will produce a “0” at the DQ7 output. Upon completion of the Embedded Erase Algorithm an attempt to read the device will produce a “1” at the DQ7 output. The flowchart for Data Polling (DQ7) is shown in Figure 19. For chip erase and sector erase, the Data Polling is valid after the rising edge of the sixth WE pulse in the six write pulse sequence. Data Polling must be performed at sector address within any of the sectors being erased and not a protected sector. Otherwise, the status may not be valid. Once the Embedded Algorithm operation is close to being completed, the MBM29LV080A data pins (DQ7) may change asynchronously while the output enable (OE) is asserted low. This means that the device is driving status information on DQ7 at one instant of time and then that byte’s valid data at the next instant of time. Depending on when the system samples the DQ7 output, it may read the status or valid data. Even if the device has completed the Embedded Algorithm operation and DQ7 has a valid data, the data outputs on DQ0 to DQ6 may be still invalid. The valid data on DQ0 to DQ7 will be read on the successive read attempts. The Data Polling feature is only active during the Embedded Programming Algorithm, Embedded Erase Algorithm, or sector erase time-out. (See Table 8.) See Figure 9 for the Data Polling timing specifications and diagrams. DQ6 Toggle Bit I The MBM29LV080A also features the “Toggle Bit I” as a method to indicate to the host system that the Embedded Algorithms are in progress or completed. During an Embedded Program or Erase Algorithm cycle, successive attempts to read (OE toggling) data from the devices will result in DQ6 toggling between one and zero. Once the Embedded Program or Erase Algorithm cycle is completed, DQ6 will stop toggling and valid data will be read on the next successive attempts. During programming, the Toggle Bit I is valid after the rising edge of the fourth WE pulse in the four write pulse sequence. For chip erase and sector erase, the Toggle Bit I is valid after the rising edge of the sixth WE pulse in the six write pulse sequence. The Toggle Bit I is active during the sector time out. In programming, if the sector being written to is protected, the toggle bit will toggle for about 2 µs and then stop toggling without the data having changed. In erase, the device will erase all the selected sectors except for the ones that are protected. If all selected sectors are protected, the chip will toggle the toggle bit for about 50 µs and then drop back into read mode, having changed none of the data. Either CE or OE toggling will cause the DQ6 to toggle. In addition, an Erase Suspend/Resume command will cause the DQ6 to toggle. See Figure 10 and Figure 20 for the Toggle Bit I timing specifications and diagrams. 18 MBM29LV080A-70/-90/-12 DQ5 Exceeded Timing Limits DQ5 will indicate if the program or erase time has exceeded the specified limits (internal pulse count). Under these conditions DQ5 will produce a “1”. This is a failure condition which indicates that the program or erase cycle was not successfully completed. Data Polling DQ7, DQ6 is the only operating function of the device under this condition. The CE circuit will partially power down the device under these conditions (to approximately 2 mA). The OE and WE pins will control the output disable functions as described in Table 2. The DQ5 failure condition may also appear if a user tries to program a non blank location without erasing. In this case the device locks out and never completes the Embedded Algorithm operation. Hence, the system never reads a valid data on DQ7 bit and DQ6 never stops toggling. Once the device has exceeded timing limits, the DQ5 bit will indicate a “1” Please note that this is not a device failure condition since the device was incorrectly used. If this occurs, reset the device with command sequence. DQ3 Sector Erase Timer After the completion of the initial Sector Erase command sequence the sector erase time-out will begin. DQ3 will remain low until the time-out is complete. Data Polling and Toggle Bit are valid after the initial Sector Erase command sequence. If Data Polling or the Toggle Bit I indicates the device has been written with a valid erase command, DQ3 may be used to determine if the sector erase timer window is still open. If DQ3 is high (“1”) the internally controlled erase cycle has begun; attempts to write subsequent commands to the device will be ignored until the erase operation is completed as indicated by Data Polling or Toggle Bit I. If DQ3 is low (“0”), the device will accept additional Sector Erase commands. To insure the command has been accepted, the system software should check the status of DQ3 prior to and following each subsequent sector erase command. If DQ3 were high on the second status check, the command may not have been accepted. See Table 8: Hardware Sequence Flags. DQ2 Toggle Bit II This Toggle Bit II, along with DQ6, can be used to determine whether the devices are in the Embedded Erase Algorithm or in Erase Suspend. Successive reads from the erasing sector will cause DQ2 to toggle during the Embedded Erase Algorithm. If the devices are in the erase-suspended-read mode, successive reads from the erase-suspended sector will cause DQ2 to toggle. When the devices are in the erase-suspended-program mode, successive reads from the byte address of the non-erase suspended sector will indicate a logic “1” at the DQ2 bit. DQ6 is different from DQ2 in that DQ6 toggles only when the standard program or Erase, or Erase Suspend Program operation is in progress. For example, DQ2 and DQ6 can be used together to determine the erase-suspend-read mode. (DQ2 toggles while DQ6 does not.) See also above Table 9 and Figure 16. Furthermore, DQ2 can also be used to determine which sector is being erased. When the devices are in the erase mode, DQ2 toggles if this bit is read from the erasing sector. 19 MBM29LV080A-70/-90/-12 Table 8 Toggle Bit Status DQ7 DQ6 DQ2 DQ7 Toggle 1 Erase 0 Toggle Toggle Erase-Suspend Read (Erase-Suspended Sector) (Note 1) 1 1 Toggle DQ7 Toggle (Note 1) 1 (Note 2) Mode Program Erase-Suspend Program Notes: 1. Performing successive read operations from any address will cause DQ6 to toggle. 2. Reading the address being programmed while in the erase-suspend program mode will indicate logic “1” at the DQ2 bit. However, successive reads from the erase-suspended sector will cause DQ2 to toggle. RY/BY Ready/Busy Pin The MBM29LV080A provides a RY/BY open-drain output pin as a way to indicate to the host system that the Embedded Algorithms are either in progress or has been completed. If the output is low, the device is busy with either a program or erase operation. If the output is high, the device is ready to accept any read/write or erase operation. When the RY/BY pin is low, the device will not accept any additional program or erase commands with the exception of the Erase Suspend command. If the MBM29LV080A is placed in an Erase Suspend mode, the RY/BY output will be high, by means of connecting with a pull up resistor to VCC. During programming, the RY/BY pin is driven low after the rising edge of the fourth WE pulse. During an erase operation, the RY/BY pin is driven low after the rising edge of the sixth WE pulse. The RY/BY pin will indicate a busy condition during the RESET pulse. See Figure 11 and 12 for a detailed timing diagram. The RY/BY pin is pulled high in stadby mode. Since this is an open-drain output, RY/BY pins can be tied together in parallel with a pull-up resistor to VCC. RESET Hardware Reset Pin The MBM29LV080A device may be reset by driving the RESET pin to VIL. The RESET pin has a pulse requirement and has to be kept low (VIL) for at least 500 ns in order to properly reset the internal state machine. Any operation in the process of being executed will be terminated and the internal state machine will be reset to the read mode tREADY after the RESET pin is driven low. Furthermore, once the RESET pin goes high, the devices requires an additional tRH before it will allow read access. When the RESET pin is low, the device will be in the standby mode for the duration of the pulse and all the data output pins will be tri-stated. If a hardware reset occurs during a program or erase operation, the data at that particular location will be corrupted. Please note that the RY/BY output signal should be ignored during the RESET pulse. See Figure 12 for the timing diagram. Refer to Temporary Sector Unprotection for additional functionality. If hardware reset occurs during Embedded Erase Algorithm, there is a possibility that the erasing sector(s) cannot be used. 20 MBM29LV080A-70/-90/-12 Data Protection The MBM29LV080A is designed to offer protection against accidental erasure or programming caused by spurious system level signals that may exist during power transitions. During power up the device automatically resets the internal state machine in the Read mode. Also, with its control register architecture, alteration of the memory contents only occurs after successful completion of specific multi-bus cycle command sequences. The devices also incorporates several features to prevent inadvertent write cycles resulting form VCC power-up and power-down transitions or system noise. Low VCC Write Inhibit To avoid initiation of a write cycle during VCC power-up and power-down, a write cycle is locked out for VCC less than 2.3 V (typically 2.4 V). If VCC < VLKO, the command register is disabled and all internal program/erase circuits are disabled. Under this condition the device will reset to the Read mode. Subsequent writes will be ignored until the VCC level is greater than VLKO. It is the users responsibility to ensure that the control pins are logically correct to prevent unintentional writes when VCC is above 2.3 V. If Embedded Erase Algorithm is interrupted, there is possibility that the erasing sector(s) cannot be used. Write Pulse “Glitch” Protection Noise pulses of less than 5 ns (typical) on OE, CE, or WE will not initiate a write cycle. Logical Inhibit Writing is inhibited by holding any one of OE = VIL, CE = VIH, or WE = VIH. To initiate a write cycle CE and WE must be a logical zero while OE is a logical one. Power-up Write Inhibit Power-up of the device with WE = CE = VIL and OE = VIH will not accept commands on the rising edge of WE. The internal state machine is automatically reset to the read mode on power-up. 21 MBM29LV080A-70/-90/-12 ■ ABSOLUTE MAXIMUM RATINGS Parameter Symbol Conditions Tstg Ambient Temperature with Power Applied Voltage with respect to Ground All pins except A9, OE, RESET (Note 1) Rating Unit Min. Max. –55 +125 °C TA –40 +85 °C VIN, VOUT –0.5 VCC+0.5 V Power Supply Voltage (Note 1) VCC –0.5 +5.5 V A9, OE, and RESET (Note 2) VIN –0.5 +13.0 V Storage Temperature Notes: 1. Minimum DC voltage on input or l/O pins is −0.5 V. During voltage transitions, input or I/O pins may undershoot VSS to −2.0 V for periods of up to 20 ns. Maximum DC voltage on input or l/O pins is VCC + 0.5 V. During voltage transitions, input or I/O pins may overshoot to VCC + 2.0 V for periods of up to 20 ns. 2. Minimum DC input voltage on A9, OE and RESET pins is -0.5 V. During voltage transitions, A9, OE and RESET pins may undershoot VSS to −2.0 V for periods of up to 20 ns. Voltage difference between input and supply voltage (VIN − VCC) does not exceed 9.0 V. Maximum DC input voltage on A9, OE and RESET pins is +13.0 V which may overshoot to 14.0 V for periods of up to 20 ns. WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings. ■ RECOMMENDED OPERATING RANGES Parameter Symbol Conditions Ambient Temperature TA Power Supply Voltage VCC Value Unit Min. Max. –40 +85 °C MBM29DL16XTE/BE-70 +3.0 +3.6 V MBM29DL16XTE/BE-90/12 +2.7 +3.6 V Operating ranges define those limits between which the functionality of the device is quaranteed. WARNING: The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device’s electrical characteristics are warranted when the device is operated within these ranges. Always use semiconductor devices within their recommended operating condition ranges. Operation outside these ranges may adversely affect reliability and could result in device failure. No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representatives beforehand. 22 MBM29LV080A-70/-90/-12 ■ MAXIMUM OVERSHOOT / UNDERSHOOT +0.6 V 20 ns 20 ns −0.5 V −2.0 V 20 ns Figure 1 Maximum Undershoot Waveform 20 ns VCC +2.0 V VCC +0.5 V +2.0 V 20 ns 20 ns Figure 2 Maximum Overshoot Waveform 1 20 ns +14.0 V +13.0 V VCC +0.5 V 20 ns 20 ns Note : This waveform is applied for A9, OE and RESET. Figure 3 Maximum Overshoot Waveform 2 23 MBM29LV080A-70/-90/-12 ■ DC CHARACTERISTICS Parameter Symbol Parameter Description Test Conditions Min. Max. Unit ILI Input Leakage Current VIN = VSS to VCC, VCC = VCC Max. –1.0 +1.0 µA ILO Output Leakage Current VOUT = VSS to VCC, VCC = VCC Max. –1.0 +1.0 µA ILIT A9, OE, RESET Inputs Leakage Current VCC = VCC Max., A9, OE, RESET = 12.5 V — 35 µA ICC1 VCC Active Current (Note 1) CE = VIL, OE = VIH, f = 10 MHz — 22 mA CE = VIL, OE = VIH, f = 5 MHz — 12 mA ICC2 VCC Active Current (Note 2) CE = VIL, OE = VIH — 35 mA ICC3 VCC Current (Standby) VCC = VCC Max., CE = VCC ±0.3 V, RESET = VCC ±0.3 V — 5 µA ICC4 VCC Current during Reset (Standby, RESET) VCC = VCC Max., RESET = VSS ±0.3 V — 5 µA ICC5 VCC = VCC Max., RESET = VCC ±0.3 V, VCC Current (Automatic Sleep Mode) (Note 3) CE = VSS ±0.3 V, VIN = VCC ±0.3 V or VSS ±0.3 V — 5 µA VIL Input Low Level — –0.5 0.6 V VIH Input High Level — 2.0 VCC + 0.3 V VID Voltage for Autoselect, Sector Protection and Temporary Sector Unprotection (A9, OE, RESET) (Note 4, 5) — 11.5 12.5 V VOL Output Low Voltage Level IOL = 4.0 mA, VCC = VCC Min. — 0.45 V IOH = –2.0 mA, VCC = VCC Min. 2.4 — V VCC – 0.4 — V 2.3 2.5 V VOH1 VOH2 VLKO Output High Voltage Level Low VCC Lock-Out Voltage IOH = –100 µA — Notes: 1. The lCC current listed includes both the DC operating current and the frequency dependent component. 2. lCC active while Embedded Erase or Embedded Program is in progress. 3. Automatic sleep mode enables the low power mode when address remain stable for 150 ns. 4. This voltage is for Sector Protection operation. 5. (VID - VCC) do not exceed 9 V. 24 MBM29LV080A-70/-90/-12 ■ AC CHARACTERISTICS • Read Only Operations Characteristics Parameter Symbols Description JEDEC Standard tAVAV tRC Read Cycle Time tAVQV tACC tELQV Test Setup -70 (Note) -90 (Note) -12 (Note) Unit — Min. 70 90 120 ns Address to Output Delay CE = VIL OE = VIL Max. 70 90 120 ns tCE Chip Enable to Output Delay OE = VIL Max. 70 90 120 ns tGLQV tOE Output Enable to Output Delay — Max. 30 35 50 ns tEHQZ tDF Chip Enable to Output HIGH-Z — Max. 25 30 30 ns tGHQZ tDF Output Enable to Output HIGH-Z — Max. 25 30 30 ns tAXQX tOH Output Hold Time From Address, CE or OE, Whichever Occurs First — Min. 0 0 0 ns — tREADY RESET Pin Low to Read Mode — Max. 20 20 20 µs Note: Test Conditions: Output Load: 1 TTL gate and 30 pF (MBM29LV080A-70) 1 TTL gate and 100 pF (MBM29LV080A-90/-12) Input rise and fall times: 5 ns Input pulse levels: 0.0 V to 3.0 V Timing measurement reference level Input: 1.5 V Output: 1.5 V 3.3 V IN3064 or Equivalent 2.7 kΩ Device Under Test 6.2 kΩ CL Diodes = IN3064 or Equivalent Notes: CL = 30 pF including jig capacitance (MBM29LV080A-70) CL = 100 pF including jig capacitance (MBM29LV080A-90/-12) Figure 4 Test Conditions 25 MBM29LV080A-70/-90/-12 • Write (Erase/Program) Operations Parameter Symbols JEDEC Standard tAVAV tWC Write Cycle Time tAVWL tAS tWLAX MBM29LV080A Description Unit -70 -90 -12 Min. 70 90 120 ns Address Setup Time Min. 0 0 0 ns tAH Address Hold Time Min. 45 45 50 ns tDVWH tDS Data Setup Time Min. 35 45 50 ns tWHDX tDH Data Hold Time Min. 0 0 0 ns — tOES Output Enable Setup Time Min. 0 0 0 ns — tOEH Output Enable Hold Time Read Min. 0 0 0 ns Toggle and Data Polling Min. 10 10 10 ns tGHWL tGHWL Read Recover Time Before Write (OE High to WE Low) Min. 0 0 0 ns tGHEL tGHEL Read Recover Time Before Write (OE High to CE Low) Min. 0 0 0 ns tELWL tCS CE Setup Time Min. 0 0 0 ns tWLEL tWS WE Setup Time Min. 0 0 0 ns tWHEH tCH CE Hold Time Min. 0 0 0 ns tEHWH tWH WE Hold Time Min. 0 0 0 ns tWLWH tWP Write Pulse Width Min. 35 45 50 ns tELEH tCP CE Pulse Width Min. 35 45 50 ns tWHWL tWPH Write Pulse Width High Min. 25 25 30 ns tEHEL tCPH CE Pulse Width High Min. 25 25 30 ns tWHWH1 tWHWH1 Programming Operation Typ. 8 8 8 µs tWHWH2 tWHWH2 Sector Erase Operation (Note 1) Typ. 1 1 1 s — tEOE Delay Time from Embedded Output Enable Max. 30 35 50 ns — tVCS VCC Setup Time Min. 50 50 50 µs — tVLHT Voltage Transition Time (Note 2) Min. 4 4 4 µs — tWPP Write Pulse Width (Note 2) Min. 100 100 100 µs — tOESP OE Setup Time to WE Active (Note 2) Min. 4 4 4 µs — tCSP CE Setup Time to WE Active (Note 2) Min. 4 4 4 µs — tRB Recover Time From RY/BY Min. 0 0 0 ns — tRH RESET Hold Time Before Read Min. 200 200 200 ns (Continued) 26 MBM29LV080A-70/-90/-12 (Continued) Parameter Symbols MBM29LV080A Description JEDEC Standard — tBUSY Program/Erase Valid to RY/BY Delay — tVIDR — tRP Unit -70 -90 -12 Max. 90 90 90 ns Rise Time to VID (Note 2) Min. 500 500 500 ns RESET Pulse Width Min. 500 500 500 ns Notes: 1. This does not include the preprogramming time. 2. This timing is for Sector Protection operation. 27 MBM29LV080A-70/-90/-12 ■ SWITCHING WAVEFORMS • Key to Switching Waveforms WAVEFORM INPUTS OUTPUTS Must Be Steady Will Be Steady May Change from H to L Will Be Change from H to L May Change from L to H Will Be Change from L to H “H” or “L”: Any Change Permitted Changing, State Unknown Does Not Apply Center Line is HighImpedance “Off” State tRC Addresses Addresses Stable tACC CE tOE tDF OE tOEH WE tOH tCE Outputs High-Z Output Valid Figure 5.1 AC Waveforms for Read Operations 28 High-Z MBM29LV080A-70/-90/-12 tRC Addresses Addresses Stable tACC tRH RESET tOH Outputs High-Z Output Valid Figure 5.2 AC Waveforms for Hardware Reset/Read Operations 29 MBM29LV080A-70/-90/-12 Data Polling 3rd Bus Cycle Addresses XXXH tWC PA tAS PA tRC tAH CE tCH tCS tCE OE tGHWL tWP tWPH tDS tDH tOE tWHWH1 WE Data A0H tDF PD DQ 7 DOUT tOH DOUT Notes: • PA is address of the memory location to be programmed. • PD is data to be programmed at byte address. • DQ7 is the output of the complement of the data written to the device. • DOUT is the output of the data written to the device. • Figure indicates last two bus cycles out of four bus cycle sequence. Figure 6 AC Waveforms for Alternate WE Controlled Program Operations 30 MBM29LV080A-70/-90/-12 3rd Bus Cycle Addresses Data Polling PA XXXH tWC tAS PA tAH WE tWS tWH OE tGHEL tCP tCPH tWHWH1 CE tDS Data A0H tDH PD DQ 7 DOUT Notes: • PA is address of the memory location to be programmed. • PD is data to be programmed at byte address. • DQ7 is the output of the complement of the data written to the device. • DOUT is the output of the data written to the device. • Figure indicates last two bus cycles out of four bus cycle sequence. Figure 7 AC Waveforms for Alternate CE Controlled Program Operations 31 MBM29LV080A-70/-90/-12 Addresses XXXH XXXH tWC tAS XXXH XXXH XXXH SA* tAH CE tCS tCH OE tGHWL tWP tWPH tDS tDH WE AAH Data 30H for Sector Erase 55H 80H AAH 55H tVCS VCC *: SA is the sector address for Sector Erase. Addresses = XXXH for Chip Erase. Figure 8 AC Waveforms for Chip/Sector Erase Operations 32 10H MBM29LV080A-70/-90/-12 CE tCH tOE tDF OE tOEH WE tCE * DQ7 Data DQ7 = Valid Data DQ7 High-Z tWHWH1 or 2 DQ0 to DQ6 Data DQ0 to DQ6 = Output Flag DQ0 to DQ6 Valid Data High-Z tEOE *: DQ7 = Valid Data (The device has completed the Embedded operation.) Figure 9 AC Waveforms for Data Polling during Embedded Algorithm Operations CE tOEH WE tOES tOEH OE * tDH DQ6 Data DQ6 = Toggle DQ6 = Toggle DQ6 = Stop Toggling DQ0 to DQ7 Data Valid tOE *: DQ6 stops toggling. (The device has completed the Embedded operation.) Figure 10 AC Waveforms for Toggle Bit I during Embedded Algorithm Operations 33 MBM29LV080A-70/-90/-12 CE The rising edge of the last WE signal WE Entire programming or erase operations RY/BY tBUSY Figure 11 RY/BY Timing Diagram during Program/Erase Operations WE RESET tRP tRB RY/BY tREADY Figure 12 RESET, RY/BY Timing Diagram 34 MBM29LV080A-70/-90/-12 A19, A18 A17, A16 SAX SAY A0 A1 A6, A10 12 V 3V A9 tVLHT 12 3V OE tOESP tVLHT tWPP tVLHT tVLHT WE tCSP CE Data 01H tVLHT tOE VCC SAX: Sector Address for initial sector SAY : Sector Address for next sector Figure 13 AC Waveforms for Sector Protection Timing Diagram 35 MBM29LV080A-70/-90/-12 VCC tVCS tVLHT RESET tVIDR Add SPAX SPAX SPAY A0 A1 A6, A10 CE OE TIME-OUT WE Data 60H 60H 40H 01H tOE SPAX: Sector Address to be protected SPAY : Next Sector Address to be protected TIME-OUT : Time-Out window = 250 µs (min.) Figure 14 Extended Sector Protection Timing Diagram 36 60H MBM29LV080A-70/-90/-12 VCC tVIDR tVCS tVLHT VID 3V 3V RESET CE WE tVLHT tVLHT Program or Erase Command Sequence RY/BY Unprotection period Figure 15 Temporary Sector Unprotection Timing Diagram Enter Embedded Erasing WE Erase Suspend Erase Enter Erase Suspend Program Erase Suspend Read Erase Suspend Program Erase Resume Erase Suspend Read Erase Erase Complete DQ6 DQ2 Toggle DQ2 and DQ6 with OE Note: DQ2 is read from the erase-suspended sector. Figure 16 DQ2 vs. DQ6 37 MBM29LV080A-70/-90/-12 ■ FLOW CHART EMBEDDED ALGORITHM Start Write Program Command Sequence (See below) Data Polling No Verify Data ? Embeded Program Algorithm in progress Yes Increment Address No Last Address ? Yes Programming Completed Program Command Sequence (Address/Command): XXXH/AAH XXXH/55H XXXH/A0H Program Address/Program Data Figure 17 Embedded ProgramTM Algorithm 38 MBM29LV080A-70/-90/-12 EMBEDDED ALGORITHM Start Write Erase Command Sequence (See below) Data Polling No Embeded Program Algorithm in progress Data = FFH ? Yes Erasure Completed Chip Erase Command Sequence (Address/Command): Individual Sector/Multiple Sector Erase Command Sequence (Address/Command): XXXH/AAH XXXH/AAH XXXH/55H XXXH/55H XXXH/80H XXXH/80H XXXH/AAH XXXH/AAH XXXH/55H XXXH/55H XXXH/10H Sector Address/30H Sector Address/30H Additional sector erase commands are optional. Sector Address/30H Figure 18 Embedded EraseTM Algorithm 39 MBM29LV080A-70/-90/-12 VA = Address for programming = Any of the sector addresses within the sector being erased during sector erase or multiple erases operation. = Any of the sector addresses within the sector not being protected during sector erase or multiple sector erases operation. Start Read Byte (DQ7 to DQ0) Addr. = VA DQ7 = Data? Yes No No DQ5 = 1? Yes Read Byte (DQ7 to DQ0) Addr. = VA DQ7 = Data? * Yes No Fail Pass *: DQ7 is rechecked even if DQ5 = “1” because DQ7 may change simultaneously with DQ5. Figure 19 Data Polling Algorithm 40 MBM29LV080A-70/-90/-12 Start Read DQ7 to DQ0 *1 Read DQ7 to DQ0 Toggle Bit = Toggle ? Yes No No DQ5 = 1? Yes *1, *2 Read DQ7 to DQ0 Twice Toggle Bit = Toggle ? Yes Program/Erase Operation Not Complete. Write Reset Command No Program/Erase Operation Complete. *1: Reset toggle bit twice to determine whether or not it is toggle. *2: Recheck toggle bit because it may stop toggle as DQ5 changes to “1”. Figure 20 Toggle Bit Algorithm 41 MBM29LV080A-70/-90/-12 Start Setup Sector Addr. (A19, A18, A17, A16) PLSCNT = 1 OE = VID, A9 = VID, A6 = CE = VIL, RESET = VIH A0 = VIL, A1 = VIH Activate WE Pulse Time out 100 µs Increment PLSCNT WE = VIH, CE = OE = VIL (A9 should remain VID) Read from Sector (A1 = VIH, A0 = VIL, Addr. = SA, A6 = VIL) No No PLSCNT = 25? Yes Remove VID from A9 Write Reset Command Data = 01H? Yes Yes Protect Another Sector? No Device Failed Remove VID from A9 Write Reset Command Sector Protection Completed Figure 21 Sector Protection Algorithm 42 MBM29LV080A-70/-90/-12 Start RESET = VID *1 Perform Erase or Program Operations RESET = VIH Temporary Sector Unprotection Completed *2 *1: All protected sectors are unprotected. *2: All previously protected sectors are protected once again. Figure 22 Temporary Sector Unprotection Algorithm 43 MBM29LV080A-70/-90/-12 Start RESET = VID Wait to 4 µs Device is Operating in Temporary Secto Unprotection Mode No Extended Sector Protection Entry? Yes To Setup Sector Protection Write XXXH/60H PLSCNT = 1 To Sector Protection Write 60H to Sector Address (A0 = VIL, A1 = VIH, A6 = VIL) Wait to 250 µs Increment PLSCNT To Verify Sector Protection Write 40H to Sector Address (A0 = VIL, A1 = VIH, A6 = VIL) Setup Next Sector Address Read from Sector Address (A0 = VIL, A1 = VIH, A6 = VIL) No No PLSCNT = 25? Yes Data = 01H? Yes Remove VID from RESET Write Reset Command Protect Other Sector ? Yes No Device Failed Remove VID from RESET Write Reset Command Sector Protection Completed Figure 23 Extended Sector Protection Algorithm 44 MBM29LV080A-70/-90/-12 FAST MODE ALGORITHM Start XXXH/AAH XXXH/55H Set Fast Mode XXXH/20H XXXH/A0H Program Address/Program Data Data Polling Device Verify Data? No In Fast Program Yes Increment Address No Last Address ? Yes Programming Completed XXXH/90H Reset Fast Mode XXXH/F0H Figure 24 Embedded ProgramTM Algorithm for Fast Mode 45 MBM29LV080A-70/-90/-12 ■ ERASE AND PROGRAMMING PERFORMANCE Parameter Limits Unit Comments 10 s Excludes programming time prior to erasure 8 300 µs Excludes system-level overhead — 8.4 25 s Excludes system-level overhead 100,000 — — cycle Min. Typ. Max. Sector Erase Time — 1 Byte Programming Time — Chip Programming Time Erase/Program Cycle — ■ TSOP (I) PIN CAPACITANCE Parameter Symbol Parameter Description Typ. Max. Unit CIN Input Capacitance VIN = 0 7 10 pF COUT Output Capacitance VOUT = 0 8 10 pF CIN2 Control Pin Capacitance VIN = 0 10 12.5 pF Note: Test conditions TA = 25°C, f = 1.0 MHz 46 Test Setup MBM29LV080A-70/-90/-12 ■ ORDERING INFORMATION Standard Products Fujitsu standard products are available in several packages. The order number is formed by a combination of: MBM29LV080 A -70 PTN PACKAGE TYPE PTN = 40-pin Thin Small Outline Package (TSOP (I)) Standard Pinout PTR = 40-pin Thin Small Outline Package (TSOP (I)) Reverse Pinout SPEED OPTION See Product Selector Guide DEVICE REVISION DEVICE NUMBER/DESCRIPTION MBM29LV080 8Mega-bit (1M × 8-Bit) CMOS Flash Memory 3.0 V-only Read, Program, and Erase Part number Package MBM29LV080A-70PTV MBM29LV080A-90PTV MBM29LV080A-12PTV 40-pin plastic TSOP(I) (FPT-40P-M06) Standard Pinout MBM29LV080A-70PTR MBM29LV080A-90PTR MBM29LV080A-12PTR 40-pin plastic TSOP(I) (FPT-40P-M07) Reverse Pinout Remarks 47 MBM29LV080A-70/-90/-12 ■ PACKAGE DIMENSIONS 40-pin plastic TSOP(I) (FPT-40P-M06) LEAD No. 1 Details of "A" part 40 0.15(.006) MAX 0.35(.014) MAX INDEX "A" 0.15(.006) 20 0.25(.010) 21 0.15±0.05 (.006±.002) 20.00±0.20 (.787±.008) 18.40±0.20 (.724±.008) 0.50(.0197) TYP 0.10(.004) 19.00±0.20 (.748±.008) C 0.05(.002)MIN (STAND OFF) 10.00±0.20 (.394±.008) +0.10 9.50(.374) REF. 0.20±0.10 0.10(.004) (.008±.004) 0.50±0.10 (.020±.004) +.004 1.10 –0.05 .043 –.002 (Mounting height) M Dimensions in mm (inches). 1994 FUJITSU LIMITED F40007S-1C-1 40-pin plastic TSOP(I) (FPT-40P-M07) LEAD No. 1 Details of "A" part 40 0.15(.006) MAX 0.35(.014) MAX INDEX "A" 0.15(.006) 20 19.00±0.20 (.748±.008) 0.15±0.05 (.006±.002) 0.25(.010) 21 0.10(.004) 18.40±0.20 (.724±.008) 0.50±0.10 (.020±.004) 0.20±0.10 (.008±.004) 0.10(.004) 9.50(.374) REF. M 0.05(.002)MIN (STAND OFF) 0.50(.0197) TYP 10.00±0.20 (.394±.008) +0.10 +.004 1.10 –0.05 .043 –.002 (Mounting height) 20.00±0.20 (.787±.008) C 48 1994 FUJITSU LIMITED F40008S-1C-1 Dimensions in mm (inches). MBM29LV080A-70/-90/-12 FUJITSU LIMITED For further information please contact: Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices Shinjuku Dai-Ichi Seimei Bldg. 7-1, Nishishinjuku 2-chome, Shinjuku-ku, Tokyo 163-0721, Japan Tel: +81-3-5322-3347 Fax: +81-3-5322-3386 http://www.fujitsu.co.jp/ North and South America FUJITSU MICROELECTRONICS, INC. 3545 North First Street, San Jose, CA 95134-1804, U.S.A. Tel: +1-408-922-9000 Fax: +1-408-922-9179 Customer Response Center Mon. - Fri.: 7 am - 5 pm (PST) Tel: +1-800-866-8608 Fax: +1-408-922-9179 http://www.fujitsumicro.com/ Europe FUJITSU MICROELECTRONICS EUROPE GmbH Am Siebenstein 6-10, D-63303 Dreieich-Buchschlag, Germany Tel: +49-6103-690-0 Fax: +49-6103-690-122 http://www.fujitsu-fme.com/ Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE. LTD. #05-08, 151 Lorong Chuan, New Tech Park, Singapore 556741 Tel: +65-281-0770 Fax: +65-281-0220 http://www.fmap.com.sg/ Korea FUJITSU MICROELECTRONICS KOREA LTD. 1702 KOSMO TOWER, 1002 Daechi-Dong, Kangnam-Gu,Seoul 135-280 Korea Tel: +82-2-3484-7100 Fax: +82-2-3484-7111 F0008 FUJITSU LIMITED Printed in Japan All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. 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