FUJITSU SEMICONDUCTOR DATA SHEET DS05-20862-8E FLASH MEMORY CMOS 4M (512K × 8/256K × 16) BIT MBM29LV400TC/BC-55/70/90 ■ FEATURES • 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 48-pin TSOP(1) (Package suffix: PFTN – Normal Bend Type, PFTR – Reversed Bend Type) 44-pin SOP (Package suffix: PF) 48-pin CSOP (Package suffix: PCV) 48-ball FBGA (Package suffix: PBT) 48-ball SCSP (Package suffix: PW) • Minimum 100,000 program/erase cycles • High performance 55 ns maximum access time • Sector erase architecture One 8K word, two 4K words, one 16K word, and seven 32K words sectors in word mode One 16K byte, two 8K bytes, one 32K byte, and seven 64K bytes sectors in byte mode Any combination of sectors can be concurrently erased. Also supports full chip erase • Boot Code Sector Architecture T = Top sector B = Bottom sector (Continued) ■ PRODUCT LINE UP Part No. Power Supply Voltage (V) MBM29LV400 TC/BC -55 V VCC = 3.3 V +0.3 –0.3 V -70 VCC = 3.0 V -90 +0.6 V –0.3 V Max Address Access Time (ns) 55 70 90 Max CE Access Time (ns) 55 70 90 Max OE Access Time (ns) 30 30 35 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 (Continued) • Embedded EraseTM* Algorithms Automatically preprograms and erases the chip or any sector • Embedded ProgramTM* Algorithms Automatically writes 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 switch themselves to low power mode • Low VCC write inhibit ≤ 2.5 V • Erase Suspend/Resume Suspends the erase operation to allow a read 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 • Fast Programming Function by Extended Command • Temporary sector unprotection Temporary sector unprotection via the RESET pin *: Embedded EraseTM and Embedded ProgramTM are trademarks of Advanced Micro Devices, Inc. ■ PACKAGES 48-pin plastic TSOP (1) 48-pin plastic TSOP (1) Marking Side 44-pin plastic SOP Marking Side Marking Side 2 (FPT-48P-M19) (FPT-48P-M20) (FPT-44P-M16) 48-pin plastic CSOP 48-pin plastic FBGA 48-pin plastic SCSP (LCC-48P-M03) (BGA-48P-M11) (WLP-48P-M02) MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ GENERAL DESCRIPTION The MBM29LV400TC/BC are a 4M-bit, 3.0 V-only Flash memory organized as 512K bytes of 8 bits each or 256K words of 16 bits each. The MBM29LV400TC/BC are offered in a 48-pin TSOP(1), 44-pin SOP, 48-pin CSOP, and 48-ball FBGA packages. These devices are 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 devices can also be reprogrammed in standard EPROM programmers. The standard MBM29LV400TC/BC offer access times 70 ns and 120 ns, allowing operation of high-speed microprocessors without wait states. To eliminate bus contention the devices have separate chip enable (CE), write enable (WE), and output enable (OE) controls. The MBM29LV400TC/BC are 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 devices is similar to reading from 5.0 V and 12.0 V Flash or EPROM devices. The MBM29LV400TC/BC are 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 margin. 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 devices automatically time the erase pulse widths and verify proper cell margin. A sector is typically erased and verified in 1.0 second. (If already completely preprogrammed.) The devices also feature a sector erase architecture. The sector mode allows each sector to be erased and reprogrammed without affecting other sectors. The MBM29LV400TC/BC are erased when shipped from the factory. The devices feature 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 completed, the devices internally reset to the read mode. Fujitsu’s Flash technology combines years of EPROM and E2PROM experience to produce the highest levels of quality, reliability, and cost effectiveness. The MBM29LV400TC/BC memories electrically erase the entire chip or all bits within a sector simultaneously via Fowler-Nordhiem tunneling. The bytes/words are programmed one byte/word at a time using the EPROM programming mechanism of hot electron injection. 3 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ PIN ASSIGNMENTS SOP (Top View) TSOP(1) A15 A14 A13 A12 A11 A10 A9 A8 N.C. N.C. WE RESET N.C. N.C. RY/BY N.C. A17 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 21 22 23 24 (Marking Side) MBM29LV400TC/MBM29LV400BC Normal Bend 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 A16 BYTE VSS DQ 15/A-1 DQ7 DQ14 DQ6 DQ13 DQ5 DQ12 DQ4 VCC DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 OE VSS CE A0 FPT-48P-M19 A1 A2 A3 A4 A5 A6 A7 A17 N.C. RY/BY N.C. N.C. RESET WE N.C. N.C. A8 A9 A10 A11 A12 A13 A14 A15 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (Marking Side) MBM29LV400TC/MBM29LV400BC Reverse Bend 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 A0 CE VSS OE DQ0 DQ8 DQ1 DQ9 DQ2 DQ10 DQ3 DQ11 VCC DQ4 DQ12 DQ5 DQ13 DQ6 DQ14 DQ7 DQ15/A-1 VSS BYTE A16 N.C. 1 44 RESET RY/BY 2 43 WE A17 3 42 A8 A7 4 41 A9 A6 5 40 A10 A5 6 39 A11 A4 7 38 A12 A3 8 37 A13 A2 9 36 A14 A1 10 35 A15 A0 11 34 A16 CE 12 33 BYTE VSS 13 32 V SS OE 14 31 DQ 15/A-1 DQ0 15 30 DQ 7 DQ8 16 29 DQ 14 DQ1 17 28 DQ 6 DQ9 18 27 DQ 13 DQ2 19 26 DQ5 DQ10 20 25 DQ 12 DQ3 21 24 DQ4 DQ11 22 23 VCC FPT-44P-M16 FPT-48P-M20 (Continued) 4 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 (TOP VIEW) A1 A2 A3 A4 A5 A6 A7 A17 N.C. RY/BY N.C. N.C. RESET WE N.C. N.C. A8 A9 A10 A11 A12 A13 A14 A15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 CSOP-48 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 A0 CE VSS OE DQ0 DQ8 DQ1 DQ9 DQ2 DQ10 DQ3 DQ11 VCC DQ4 DQ12 DQ5 DQ13 DQ6 DQ14 DQ7 DQ15/A-1 VSS BYTE A16 G6 H6 LCC-48P-M03 FBGA (Top View) Marking side A6 B6 C6 D6 E6 A13 A12 A14 A15 A16 A5 B5 C5 D5 E5 A9 A8 A10 A11 DQ7 DQ14 DQ13 DQ6 A4 B4 C4 D4 E4 F4 G4 H4 WE RESET N.C N.C DQ5 DQ12 VCC DQ4 E4 F3 G3 H3 A3 B3 RY/BY N.C C3 D3 N.C N.C F6 BYTE DQ15/A-1 VSS F5 DQ2 DQ10 G5 H5 DQ11 DQ3 A2 B2 C2 D2 E2 F2 G2 H2 A7 A17 A6 A5 DQ0 DQ8 DQ9 DQ1 A1 B1 C1 D1 E1 F1 G1 H1 A3 A4 A2 A1 A0 CE OE VSS BGA-48P-M11 (Continued) 5 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 (Continued) SCSP (Top View) Marking side A6 B6 C6 D6 E6 A3 A4 A2 A1 A0 CE G6 OE H6 VSS A5 B5 C5 D5 E5 F5 G5 A7 A17 A6 A5 DQ0 DQ8 DQ9 DQ1 A4 B4 G4 RY/BY N.C A3 B3 H5 C4 D4 E4 F4 N.C N.C DQ2 DQ10 DQ11 DQ3 D3 E3 F3 N.C DQ5 DQ12 VCC DQ4 H2 C3 WE RESET N.C B2 C2 D2 E2 A8 A10 A11 DQ7 DQ14 DQ13 DQ6 A1 B1 C1 D1 E1 A12 A14 A15 A16 F1 G2 H3 A2 A13 F2 G3 H4 A9 WLP-48P-M02 6 F6 G1 H1 BYTE DQ15/A-1 VSS MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ PIN DESCRIPTIONS Pin Function A17 to A0, A-1 Address Inputs DQ15 to DQ0 Data Inputs/Outputs CE Chip Enable OE Output Enable WE Write Enable RY/BY Ready/Busy Output RESET Hardware Reset Pin/Temporary Sector Unprotection BYTE Selects 8-bit or 16-bit mode N.C. No Internal Connection VSS Device Ground VCC Device Power Supply ■ LOGIC SYMBOL A-1 18 A17 to A0 16 or 8 DQ 15 to DQ 0 CE OE WE RESET RY/BY BYTE 7 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ BLOCK DIAGRAM RY/BY Buffer DQ15 to DQ0 RY/BY VCC VSS Erase Voltage Generator Input/Output Buffers WE BYTE RESET State Control Command Register Program Voltage Generator Chip Enable Output Enable Logic CE STB Data Latch OE STB Low VCC Detector A17 to A0 A-1 8 Timer for Program/Erase Address Latch Y-Decoder Y-Gating X-Decoder Cell Matrix MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ DEVICE BUS OPERATIONS MBM29LV400TC/400BC User Bus Operations Table (BYTE = VIH) A0 A1 A6 A9 DQ0 to DQ15 Operation CE OE WE RESET L L H L L L VID Code H L L H H L L VID Code H L L H A0 A1 A6 A9 DOUT H Standby H X X X X X X High-Z H Output Disable L H H X X X X High-Z H L H L A0 A1 A6 A9 DIN H L VID L H L VID X H Verify Sector Protection * * L L H L H L VID Code H Temporary Sector Unprotection*5 X X X X X X X X VID Reset (Hardware)/Standby X X X X X X X High-Z L Auto-Select Manufacturer Code * Auto-Select Device Code * Read * 1 1 3 Write (Program/Erase) 2, 4 Enable Sector Protection * * 2, 4 Legend: L = VIL, H = VIH, X = VIL or VIH, = Pulse input. See “■DC CHARACTERISTICS” for voltage levels. *1: Manufacturer and device codes are accessed via a command register write sequence. See “MBM29LV400TC/ 400BC Standard Command Definitions Table” in ■DEVICE BUS OPERATIONS. *2: Refer to “7. Sector Protection” in ■FUNCTIONAL DESCRIPTION. *3: WE can be VIL if OE is VIL, OE at VIH initiates the write operations. *4: VCC = 3.3 V ± 10% *5: Also used for the extended sector protection. Operation MBM29LV400TC/400BC User Bus Operations (BYTE = VIL) 15/ OE WE DQ A0 A1 A6 A9 CE A-1 DQ0 to DQ7 RESET Auto-Select Manufacturer Code *1 L L H L L L L VID Code H Auto-Select Device Code *1 L L H L H L L VID Code H Read *3 L L H A-1 A0 A1 A6 A9 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 A-1 A0 A1 A6 A9 DIN H Enable Sector Protection *2, *4 L VID L L H L VID X H L L H L L H L VID Code H X X X X X X X X X VID X X X X X X X X High-Z L Verify Sector Protection *2, *4 Temporary Sector Unprotection * 5 Reset (Hardware)/Standby Legend: L = VIL, H = VIH, X = VIL or VIH, = Pulse input. See “■DC CHARACTERISTICS” for voltage levels. *1: Manufacturer and device codes are accessed via a command register write sequence. See “MBM29LV400TC/ 400BC Standard Command Definitions Table” in ■DEVICE BUS OPERATIONS. *2: Refer to “7. Sector Protection” in ■FUNCTIONAL DESCRIPTION. *3: WE can be VIL if OE is VIL, OE at VIH initiates the write operations. *4: VCC = 3.3 V ± 10% *5: Also used for the extended sector protection. 9 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 Command Sequence Word Read/Reset Byte Word Read/Reset Byte Word Autoselect Byte Word Program Byte Word Chip Erase Byte Word Sector Erase Byte Bus Write Cycles Req’d 1 3 3 4 6 6 MBM29LV400TC/400BC Standard Command Definitions First Bus Second Bus Third Bus Fourth Bus Fifth Bus Sixth Bus Write Cycle Write Cycle Write Cycle Read/Write Write Cycle Write Cycle Cycle Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data XXXh 555h AAAh 555h AAAh 555h AAAh 555h AAAh 555h AAAh F0h AAh AAh AAh AAh AAh — 2AAh 555h 2AAh 555h 2AAh 555h 2AAh 555h 2AAh 555h — 55h 55h 55h 55h 55h — 555h AAAh 555h AAAh 555h AAAh 555h AAAh 555h AAAh — — — — — — — F0h RA RD — — — — 90h — — — — — — A0h PA PD — — — — 80h 80h 555h AAAh 555h AAAh AAh AAh 2AAh 555h 2AAh 555h 55h 55h 555h AAAh SA Sector Erase Suspend Erase can be suspended during sector erase with Addr. (“H” or “L”). Data (B0h) Sector Erase Resume Erase can be resumed after suspend with Addr. (“H” or “L”). Data (30h) 10h 30h Notes: • Address bits A11 to A17 = X = “H” or “L” for all address commands except or Program Address (PA) and Sector Address (SA) • Bus operations are defined in “MBM29LV400TC/400BC User Bus Operations Tables (BYTE = VIH and BYTE = VIH)” in ■DEVICE BUS OPERATIONS. • 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 A17, A16, A15, A14, A13, and A12 will uniquely select any sector. • 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. • The system should generate the following address patterns: Word Mode: 555h or 2AAh to addresses A0 to A10 Byte Mode: AAAh or 555h to addresses A–1 and A0 to A10 • Both Read/Reset commands are functionally equivalent, resetting the device to the read mode. • The command combinations not described in “MBM29LV400TC/400BC Standard Command Definitions Table” and “MBM29LV400TC/BC Extended Command Definitions Table” in ■DEVICE BUS OPERATIONS are illegal. 10 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 MBM29LV400TC/BC Extended Command Definitions Bus First Bus Second Bus Third Bus Write Write Cycle Write Cycle Write Cycle Cycles Addr Data Addr Data Addr Data Req'd Command Sequence Word Set to Fast Mode Byte Fast Program *1 Reset from Fast Mode *1 Extended Sector Protect *2 Word Byte 555h 3 AAAh XXXh 2 PA XXXh AAAh Addr Data 20h — — PD — — — — F0h *3 — — — — XXXh 2 90h Byte 555h 55h 555h A0h XXXh Word 2AAh AAh Fourth Bus Read Cycle XXXh XXXh Word 4 XXXh 60h SPA 60h SPA 40h SPA SD Byte SPA : Sector address to be protected. Set sector address (SA) and (A6, A1, A0) = (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: This data “00h” is also acceptable. MBM29LV400TC/400BC Sector Protection Verify Autoselect Codes A6 A1 A0 Type A12 to A17 A-1*1 Manufacture’s Code MBM29LV400TC Device Code MBM29LV400BC X VIL VIL VIL X VIL VIL VIH X VIL VIL VIH Sector Addresses VIL VIH VIL Byte Word Byte Word Sector Protection Code (HEX) VIL 04h VIL B9h X 22B9h VIL BAh X 22BAh VIL 01h*2 *1: A-1 is for Byte mode. In byte mode, DQ8 to DQ14 become “High-Z” and DQ15 becomes the lower address A-1. *2: Outputs 01h at protected sector addresses and outputs 00h at unprotected sector addresses. Extended Autoselect Code Table Type Manufacturer’s Code Code DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 04h A-1/0 MBM29 (B)* B9h A-1 LV400TC (W) 22B9h 0 Device Code MBM29 (B)* BAh A-1 LV400BC (W) 22BAh 0 Sector Protection (B): Byte mode (W): Word mode HI-Z : High-Z 01h A-1/0 0 0 0 0 0 0 0 HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z 0 1 0 0 0 1 0 HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z 0 0 0 0 0 1 0 0 1 0 1 1 1 0 0 1 1 0 1 1 1 0 0 1 1 0 1 1 1 0 1 0 0 1 0 0 0 1 0 1 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 * : At Byte mode, DQ8 to DQ14 are High-Z and DQ15 is A-1, the lowest address. 11 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ FLEXIBLE SECTOR-ERASE ARCHITECTURE • One 16K byte, two 8K bytes, one 32K byte, and seven 64K bytes. • Individual-sector, multiple-sector, or bulk-erase capability. • Individual or multiple-sector protection is user definable. (×8) (×16) 7FFFFh 3FFFFh 16K byte (×16) 7FFFFh 3FFFFh 6FFFFh 37FFFh 5FFFFh 2FFFFh 4FFFFh 27FFFh 3FFFFh 1FFFFh 2FFFFh 17FFFh 1FFFFh 0FFFFh 0FFFFh 07FFFh 07FFFh 03FFFh 05FFFh 02FFFh 03FFFh 01FFFh 00000h 00000h 64K byte 7BFFFh 3DFFFh 8K byte 64K byte 79FFFh 3CFFFh 8K byte 64K byte 77FFFh 3BFFFh 32K byte 64K byte 6FFFFh 37FFFh 64K byte 64K byte 5FFFFh 2FFFFh 64K byte 64K byte 4FFFFh 27FFFh 64K byte 64K byte 3FFFFh 1FFFFh 64K byte 32K byte 2FFFFh 17FFFh 64K byte 8K byte 1FFFFh 0FFFFh 64K byte 8K byte 0FFFFh 07FFFh 64K byte 16K byte 00000h 00000h MBM29LV400TC Sector Architecture 12 (×8) MBM29LV400BC Sector Architecture MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 Sector Address Tables (MBM29LV400TC) Sector Address A17 A16 A15 A14 A13 A12 Address Range (×8) Address Range (×16) SA0 0 0 0 X X X 00000h to 0FFFFh 00000h to 07FFFh SA1 0 0 1 X X X 10000h to 1FFFFh 08000h to 0FFFFh SA2 0 1 0 X X X 20000h to 2FFFFh 10000h to 17FFFh SA3 0 1 1 X X X 30000h to 3FFFFh 18000h to 1FFFFh SA4 1 0 0 X X X 40000h to 4FFFFh 20000h to 27FFFh SA5 1 0 1 X X X 50000h to 5FFFFh 28000h to 2FFFFh SA6 1 1 0 X X X 60000h to 6FFFFh 30000h to 37FFFh SA7 1 1 1 0 X X 70000h to 77FFFh 38000h to 3BFFFh SA8 1 1 1 1 0 0 78000h to 79FFFh 3C000h to 3CFFFh SA9 1 1 1 1 0 1 7A000h to 7BFFFh 3D000h to 3DFFFh SA10 1 1 1 1 1 X 7C000h to 7FFFFh 3E000h to 3FFFFh Sector Address Tables (MBM29LV400BC) Sector Address A17 A16 A15 A14 A13 A12 Address Range (×8) Address Range (×16) SA0 0 0 0 0 0 X 00000h to 03FFFh 00000h to 01FFFh SA1 0 0 0 0 1 0 04000h to 05FFFh 02000h to 02FFFh SA2 0 0 0 0 1 1 06000h to 07FFFh 03000h to 03FFFh SA3 0 0 0 1 X X 08000h to 0FFFFh 04000h to 07FFFh SA4 0 0 1 X X X 10000h to 1FFFFh 08000h to 0FFFFh SA5 0 1 0 X X X 20000h to 2FFFFh 10000h to 17FFFh SA6 0 1 1 X X X 30000h to 3FFFFh 18000h to 1FFFFh SA7 1 0 0 X X X 40000h to 4FFFFh 20000h to 27FFFh SA8 1 0 1 X X X 50000h to 5FFFFh 28000h to 2FFFFh SA9 1 1 0 X X X 60000h to 6FFFFh 30000h to 37FFFh SA10 1 1 1 X X X 70000h to 7FFFFh 38000h to 3FFFFh 13 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ FUNCTIONAL DESCRIPTION 1. Read Mode The MBM29LV400TC/BC have 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-tOE time.) When reading out a data without changing addresses after power-up, it is necessary to input hardware reset or change CE pin from “H” or “L” 2. Standby Mode There are two ways to implement the standby mode on the MBM29LV400TC/BC devices, 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. The device can be read with standard access time (tCE) from either of these standby modes. During Embedded Algorithm operation, VCC active current (ICC2) is required even CE = “H”. 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. 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. 3. Automatic Sleep Mode There is a function called automatic sleep mode to restrain power consumption during read-out of MBM29LV400TC/400BC data. This mode can be used effectively with an application requested low power consumption such as handy terminals. To activate this mode, MBM29LV400TC/400BC automatically switch themselves to low power mode when MBM29LV400TC/400BC addresses remain stably during access fine 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). Since the data are latched during this mode, the data are read-out continuously. If the addresses are changed, the mode is canceled automatically and MBM29LV400TC/400BC read-out the data for changed addresses. 4. Output Disable With the OE input at a logic high level (VIH), output from the devices are disabled. This will cause the output pins to be in a high impedance state. 5. Autoselect The autoselect mode allows the reading out of a binary code from the devices and will identify its manufacturer and type. This mode is intended for use by programming equipment for the purpose of automatically matching the devices to be programmed with its corresponding programming algorithm. This mode is functional over the entire temperature range of the devices. 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 devices outputs by toggling address A0 from VIL to VIH. All addresses are DON’T CARES except A0, A1, A6, and A-1. (See “MBM29LV400TC/400BC Sector Protection Verify Autoselect Codes Table” in ■DEVICE BUS OPERATIONS.) 14 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 The manufacturer and device codes may also be read via the command register, for instances when the MBM29LV400TC/BC are erased or programmed in a system without access to high voltage on the A9 pin. The command sequence is illustrated in “MBM29LV400TC/400BC Standard Command Definitions Table” (■DEVICE BUS OPERATIONS). (Refer to “2. Autoselect Command” in ■COMMAND DEFINITIONS.) Byte 0 (A0 = VIL) represents the manufacturer’s code (Fujitsu = 04h) and (A0 = VIH) represents the device identifier code (MBM29LV400TC = B9h and MBM29LV400BC = BAh for ×8 mode; MBM29LV400TC = 22B9h and MBM29LV400BC = 22BAh for ×16 mode). These two bytes/words are given in “MBM29LV400TC/400BC Sector Protection Verify Autoselect Codes Table” and “Extended Autoselect Code Table” (■DEVICE BUS OPERATIONS). 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 “MBM29LV400TC/400BC Sector Protection Verify Autoselect Codes Table” and “Extended Autoselect Code Table” in ■DEVICE BUS OPERATIONS.) 6. 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. 7. Sector Protection The MBM29LV400TC/BC feature hardware sector protection. This feature will disable both program and erase operations in any number of sectors (0 through 10). The sector protection feature is enabled using programming equipment at the user’s site. The devices are shipped with all sectors unprotected. Alternatively, Fujitsu may program and protect sectors in the factory prior to shiping the device. 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, and A6 = VIL. The sector addresses ( A17, A16, A15, A14, A13, and A12) should be set to the sector to be protected. “Sector Address Tables (MBM29LV400TC/BC)” in ■FLEXIBLE SECTOR-ERASE ARCHITECTURE define the sector address for each of the eleven (11) 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 “13. AC Waveforms for Sector Protection Timing Diagram” in ■TIMING DIAGRAM and “5. Sector Protection Algorithm” in ■FLOW CHART 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 ( A17, A16, A15, A14, A13, and A12) while (A6, A1, A0) = (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, and A6 are DON’T CARES. Address locations with A1 = VIL are reserved for Autoselect manufacturer and device codes. A-1 requires to apply to VIL on byte mode. 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 (A17, A16, A15, A14, A13, and A12) are the desired sector address will produce a logical “1” at DQ0 for a protected sector. See “MBM29LV400TC/ 400BC Sector Protection Verify Autoselect Codes Table” and “Extended Autoselect Code Table” in ■DEVICE BUS OPERATIONS for Autoselect codes. 15 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 8. Temporary Sector Unprotection This feature allows temporary unprotection of previously protected sectors of the MBM29LV400TC/BC devices 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 “14. Temporary Sector Unprotection Timing Diagram” in ■TIMING DIAGRAM and “6. Temporary Sector Unprotection Algorithm” in ■FLOW CHART. 9. RESET Hardware Reset The MBM29LV400TC/BC devices 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 20 µs after the RESET pin is driven low. Furthermore, once the RESET pin goes high, the devices require an additional tRH before it will allow read access. When the RESET pin is low, the devices 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 “9. RESET/RY/BY Timing Diagram” in ■TIMING DIAGRAM for the timing diagram. Refer to “8. 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. 16 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ 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 the read mode. “MBM29LV400TC/400BC Standard Command Definitions Table” in ■DEVICE BUS OPERATIONS 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 and DQ8 to DQ15 bits are ignored. 1. Read/Reset Command In order to return from Autoselect mode or Exceeded Timing Limits (DQ5 = 1) to read/reset mode, the read/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 devices remain 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. 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 devices reside 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 XX01h for ×16(XX02h for ×8) returns the device code (MBM29LV400TC = B9h and MBM29LV400BC = BAh for ×8 mode; MBM29LV400TC = 22B9h and MBM29LV400BC = 22BAh for ×16 mode). (See “MBM29LV400TC/400BC Sector Protection Verify Autoselect Codes Table” and “Extended Autoselect Code Table” in ■DEVICE BUS OPERATIONS.) All manufacturer and device codes will exhibit odd parity with DQ7 defined as the parity bit. Sector state (protection or unprotection) will be informed by address XX02h for ×16 (XX04h for ×8). Scanning the sector addresses (A17, A16, A15, A14, A13, and A12) while (A6, A1, A0) = (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 “MBM29LV400TC/400BC User Bus Operations Tables (BYTE = VIH and BYTE = VIH)” in ■DEVICE BUS OPERATIONS.) 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. 3. Byte/Word Programming The devices are programmed on a byte-by-byte (or word-by-word) 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. 17 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 The automatic programming operation is completed when the data on DQ7 is equivalent to data written to this bit at which time the devices return to the read mode and addresses are no longer latched. (See “Hardware Sequence Flags Table” in ■COMMAND DEFINITIONS.) Therefore, the devices require that a valid address to the devices 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 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. “1. Embedded ProgramTM Algorithm” in ■FLOW CHART illustrates the Embedded ProgramTM Algorithm using typical command strings and bus operations. 4. 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 devices will automatically program and verify the entire memory for an all zero data pattern prior to electrical erase (Preprogram function). 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 “8. Write Operation Status”.) at which time the device returns to read the mode. Chip Erase Time; Sector Erase Time × All sectors + Chip Program Time (Preprogramming) “2. Embedded EraseTM Algorithm” in ■FLOW CHART illustrates the Embedded EraseTM Algorithm using typical command strings and bus operations. 5. 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 “MBM29LV400TC/400BC Standard Command Definitions Table” (■DEVICE BUS OPERATIONS). 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 the sector. In that case, restart the erase on those sectors and allow them to complete. (Refer to “8. Write Operation Status” for Sector Erase Timer operation.) Loading the sector erase buffer may be done in any sequence and with any number of sectors (0 to 10). 18 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 Sector erase does not require the user to program the devices prior to erase. The devices automatically program all memory locations in the sector(s) to be erased prior to electrical erase (Preprogram function). 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 “8. Write Operation Status”.) at which time the devices return to the read mode. Data polling must be performed at an address within any of the sectors being erased. Multiple Sector Erase Time; [Sector Erase Time + Sector Program Time (Preprogramming)] × Number of Sector Erase “2. Embedded EraseTM Algorithm” in ■FLOW CHART illustrates the Embedded EraseTM Algorithm using typical command strings and bus operations. 6. Erase Suspend The Erase Suspend command allows the user to interrupt a Sector Erase operation and then perform data reads from or programs 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 command. 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 devices default 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 by the Toggle Bit I (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. 7. Extended Command (1) Fast Mode MBM29LV400TC/BC has Fast Mode function. This mode dispenses with the initial two unclock cycles required in the standard program command sequence by writing Fast Mode command into the command 19 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 register. In this mode, the required bus cycle for programming is two cycles instead of four bus cycles in standard program 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 “8. Embedded ProgramTM Algorithm for Fast Mode” in ■FLOW CHART 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 set-up command (A0h) and data write cycles (PA/PD). (Refer to “8. Embedded ProgramTM Algorithm for Fast Mode” in ■FLOW CHART Extended algorithm.) (3) Extended Sector Protection In addition to normal sector protection, the MBM29LV400TC/BC has Extended Sector Protection as extended function. This function enable to protect sector by forcing VID on RESET pin and write a commnad 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 initiated by writing the set-up command (60h) into the command register. Then, the sector addresses pins (A17, A16, A15, A14, A13 and A12) and (A6, A1, A0) = (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 150 µs. To verify programming of the protection circuitry, the sector addresses pins (A17, A16, A15, A14, A13 and A12) and (A6, A1, A0) = (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 operation, it is necessary to set RESET pin to VIH. 8. Write Operation Status Hardware Sequence Flags DQ7 DQ6 DQ5 DQ3 DQ2 DQ7 Toggle 0 0 1 0 Toggle 0 1 Toggle*1 1 1 0 0 Toggle Data Data Data Data Data DQ7 Toggle 0 0 1 *2 Embedded Program Algorithm DQ7 Toggle 1 0 1 Exceeded Embedded Erase Algorithm Time Erase Limits Erase Suspend Program Suspende (Non-Erase Suspended Sector) d Mode 0 Toggle 1 1 N/A DQ7 Toggle 1 0 N/A Status Embedded Program Algorithm Embedded Erase Algorithm In Progress Erase Suspend Read (Erase Suspended Sector) Erase Erase Suspend Read Suspende (Non-Erase Suspended Sector) d Mode Erase Suspend Program (Non-Erase Suspended Sector) *1:Successive reads from the erasing or erase-suspend sector cause DQ2 to toggle. *2: Reading from non-erase suspend sector address indicates logic “1” at the DQ2 bit. 20 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 9. DQ7 Data Polling The MBM29LV400TC/BC devices feature 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 devices 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 “3. Data Polling Algorithm” (■FLOW CHART). 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 MBM29LV400TC/BC data pins (DQ7) may change asynchronously while the output enable (OE) is asserted low. This means that the devices are 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 “Hardware Sequence Flags Table” in ■COMMAND DEFINITIONS.) See “6. AC Waveforms for Data Polling during Embedded Algorithm Operations” in ■TIMING DIAGRAM for the Data Polling timing specifications and diagrams. 10. DQ6 Toggle Bit I The MBM29LV400TC/BC also feature 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 devices 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 100 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 “7. AC Waveforms for Toggle Bit I during Embedded Algorithm Operations” in ■TIMING DIAGRAM for the Toggle Bit I timing specifications and diagrams. 21 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 11. 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 is the only operating function of the devices 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 “MBM29LV400TC/400BC User Bus Operations Tables (BYTE = VIH and BYTE = VIH)” (■DEVICE BUS OPERATIONS). The DQ5 failure condition may also appear if a user tries to program a non blank location without erasing. In this case the devices lock out and never complete the Embedded Algorithm operation. Hence, the system never reads a valid data on DQ7 bit and DQ6 never stops toggling. Once the devices have exceeded timing limits, the DQ5 bit will indicate a “1.” Please note that this is not a device failure condition since the devices were incorrectly used. If this occurs, reset the device with command sequence. 12. 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 “Hardware Sequence Flags Table” in ■COMMAND DEFINITIONS. 13. 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. The behavior of these two status bits, along with that of DQ7, is summarized as follows: For example, DQ2 and DQ6 can be used together to determine if the erase-suspend-read mode is in progress. (DQ2 toggles while DQ6 does not.) See also “Hardware Sequence Flags Table” in ■COMMAND DEFINITIONS and “15. DQ2 vs. DQ6” in ■TIMING DIAGRAM. 22 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 Furthermore, DQ2 can also be used to determine which sector is being erased. When the device is in the erase mode, DQ2 toggles if this bit is read from an erasing sector. 14. Reading Toggle Bits DQ6/DQ2 Whenever the system initially begins reading toggle bit status, it must read DQ7 to DQ0 at least twice in a row to determine whether a toggle bit is toggling. Typically, a system would note and store the value of the toggle bit after the first read. After the second read, the system would compare the new value of toggle bit with the first. If the toggle bit is not toggling, this indicates that the device has completed the program or erase operation. The system can read array data on DQ7 to DQ0 on the following read cycle. However, if after the initial two read cycles, the system determines that the toggle bit is still toggling, the system also should note whether the value of DQ5 is high (see “11. DQ5”) . If it is the system should then determine again whether the toggle bit is toggling, since the toggle bit may have stopped toggling just as DQ5 went high. If the toggle bit is no longer toggling, the device has successfully completed the program or erase operation. If it is still toggling, the device did not complete the operation successfully, and the system must write the reset command to return to reading array data. The remaining scenario is that the system initially determines that the toggle bit is toggling and DQ5 has not gone high. The system may continue to monitor the toggle bit and DQ5 though successive read cycles, determining the status as described in the previous paragraph. Alternatively, it may choose to perform other system tasks. In this case, the system must start at the beginning of the algorithm when it returns to determine the status of operation. (See “4. Toggle Bit Algorithm” in ■ FLOW CHART.) Toggle Bit Status Table DQ7 DQ6 DQ2 DQ7 Toggle 1 Erase 0 Toggle Toggle*1 Erase-Suspend Read (Erase-Suspend Sector) 1 1 Toggle Erase-Suspend Program DQ7 Toggle 1*2 Mode Program *1 : Successive reads from the erasing or erase-suspend sector cause DQ2 to toggle. *2 : Reading from non-erase suspend sector address indicates logic “1” at the DQ2 bit. 15. RY/BY Ready/Busy The MBM29LV400TC/BC provide 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 devices are busy with either a program or erase operation. If the output is high, the devices are ready to accept any read/ write or erase operation. When the RY/BY pin is low, the devices will not accept any additional program or erase commands. If the MBM29LV400TC/BC are placed in an Erase Suspend mode, the RY/BY output will be high. 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. Refer to “8. RY/BY Timing Diagram during Program/Erase Operations” and “9. RESET/RY/BY Timing Diagram” in ■TIMING DIAGRAM for a detailed timing diagram. The RY/BY pin is pulled high in standby mode. Since this is an open-drain output, the pull-up resistor needs to be connected to VCC; multiples of devices may be connected to the host system via more than one RY/BY pin in parallel. 23 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 16. Byte/Word Configuration The BYTE pin selects the byte (8-bit) mode or word (16-bit) mode for the MBM29LV400TC/BC devices. When this pin is driven high, the devices operate in the word (16-bit) mode. The data is read and programmed at DQ0 to DQ15. When this pin is driven low, the devices operate in byte (8-bit) mode. Under this mode, the DQ15/A-1 pin becomes the lowest address bit and DQ8 to DQ14 bits are tri-stated. However, the command bus cycle is always an 8-bit operation and hence commands are written at DQ0 to DQ7 and the DQ8 to DQ15 bits are ignored. Refer to “10. Timing Diagram for Word Mode Configuration” and “11. Timing Diagram for Byte Mode Configuration” and “12. BYTE Timing Diagram for Write Operations” in ■TIMING DIAGRAM for the timing diagram. 17. Data Protection The MBM29LV400TC/BC are 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 devices automatically reset 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 incorporate several features to prevent inadvertent write cycles resulting form VCC power-up and power-down transitions or system noise. 18. 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. 19. Write Pulse “Glitch” Protection Noise pulses of less than 3 ns (typical) on OE, CE, or WE will not initiate a write cycle. 20. 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. 21. Power-Up Write Inhibit Power-up of the devices 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. 22. Sector Protection Device user is able to protect each sector individually to store and protect data. Protection circuit voids both program and erase commands that are addressed to protected sectors. Any commands to program or erase addressed to protected sector are ignored (see “Sector Protection” in ■ FUNCTIONAL DESCRIPTION) . 24 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ ABSOLUTE MAXIMUM RATINGS Parameter Symbol Storage Temperature Ambient Temperature with Power Applied Voltage with Respect to Ground All pins except A9, OE, RESET *1,*2 A9, OE and RESET *1,*3 1 Power Supply Voltage * Rating Unit Min Max Tstg –55 +125 °C TA –40 +85 °C VIN, VOUT –0.5 VCC+0.5 V VIN –2.0 +13.0 V VCC –0.5 +5.5 V *1: Voltage is defined on the basis of VSS = GND = 0 V. *2: Minimum DC voltage on input or I/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 I/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. *3: 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 CONDITIONS Parameter Symbol Ambient Temperature TA Power Supply Voltage* VCC Part Number Value Unit Min Max MBM29LV400TC/BC-55 –20 +70 °C MBM29LV400TC/BC-70/-90 –40 +85 °C MBM29LV400TC/BC-55 +3.0 MBM29LV400TC/BC-70/-90 +2.7 +3.6 V * : Voltage is defined on the basis of VSS = GND = 0 V. Note: Operating ranges define those limits between which the functionality of the devices are guaranteed. 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. 25 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ MAXIMUM OVERSHOOT/ MAXIMUM UNDERSHOOT 20 ns 20 ns +0.6 V −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 Figure 2 20 ns 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 26 Maximum Overshoot Waveform 2 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ DC CHARACTERISTICS Parameter Symbol Test Conditions Min Typ Max Unit Input Leakage Current ILI VIN = VSS to VCC, VCC = VCC Max –1.0 +1.0 µA Output Leakage Current ILO VOUT = VSS to VCC, VCC = VCC Max –1.0 +1.0 µA A9, OE, RESET Inputs Leakage Current ILIT VCC = VCC Max A9, OE, RESET = 12.5 V — 35 µA 22 25 12 15 CE = VIL, OE = VIH, f=10 MHz 1 VCC Active Current * ICC1 CE = VIL, OE = VIH, f=5 MHz Byte Word Byte Word — — mA mA VCC Active Current *2 ICC2 CE = VIL, OE = VIH — 35 mA VCC Current (Standby) ICC3 VCC = VCC Max, CE = VCC ± 0.3 V, RESET = VCC ± 0.3 V — 1 5 µA VCC Current (Standby, Reset) ICC4 VCC = VCC Max, RESET = VSS ± 0.3 V — 1 5 µA VCC Current (Automatic Sleep Mode) *3 ICC5 VCC = VCC Max, CE = VSS ± 0.3 V, RESET = VCC ± 0.3 V VIN = VCC ± 0.3 V or VSS ± 0.3 V — 1 5 µA Input Low Voltage VIL — –0.5 0.6 V Input High Voltage VIH — 2.0 VCC+0.3 V Voltage for Autoselect and Sector Protection (A9, OE, RESET) *4, *5 VID — 11.5 12 12.5 V Output Low Voltage VOL IOL = 4.0 mA, VCC = VCC Min — 0.45 V VOH1 IOH = –2.0 mA, VCC = VCC Min 2.4 — V VOH2 IOH = –100 µA VCC–0.4 — V 2.3 2.4 2.5 V Output High Voltage Low VCC Lock-Out Voltage VLKO — *1: The ICC current listed includes both the DC operating current and the frequency dependent component (at 10 MHz). *2: ICC active while Embedded Algorithm (program or erase) is in progress. *3: Automatic sleep mode enables the low power mode when address remain stable for 150 ns. *4: This timing is only for Sector Protection operation and Autoselect mode. *5: (VID – VCC) do not exceed 9 V. 27 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ AC CHARACTERISTICS • Read Only Operations Characteristics Symbol Parameter Value * Test Setup -55 -70 -90 Unit Min Max Min Max Min Max JEDEC Standard Read Cycle Time tAVAV tRC — 55 70 90 ns Address to Output Delay tAVQV tACC CE = VIL OE = VIL 55 70 90 ns Chip Enable to Output Delay tELQV tCE OE = VIL 55 70 90 ns Output Enable to Output Delay tGLQV tOE — 30 30 35 ns Chip Enable to Output High-Z tEHQZ tDF — 25 25 30 ns Output Enable to Output High-Z tGHQZ tDF — 25 25 30 ns Output Hold Time From Addresses, CE or OE, Whichever Occurs First tAXQX tOH — 0 0 0 ns RESET Pin Low to Read Mode — tREADY — 20 20 20 µs CE to BYTE Switching Low or High — tELFL, tELFH — 5 5 5 ns *: Test Conditions: Output Load: 1 TTL gate and 30 pF (MBM29LV400TC/BC-55/70) 1 TTL gate and 100 pF (MBM29LV400TC/BC-90) Input rise and fall times: 5 ns Input pulse levels: 0.0 V or 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 (MBM29LV400TC/BC-55/70) CL = 100 pF including jig capacitance (MBM29LV400TC/BC-90) Figure 4 28 Test Conditions MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 • Write/Erase/Program Operations Parameter Symbol -55 -70 -90 JEDEC Standard Min Typ Max Min Typ Max Min Typ Max Unit Write Cycle Time tAVAV tWC 55 70 90 ns Address Setup Time tAVWL tAS 0 0 0 ns Address Hold Time tWLAX tAH 45 45 45 ns Data Setup Time tDVWH tDS 30 35 45 ns Data Hold Time tWHDX tDH 0 0 0 ns — tOES 0 0 0 ns — tOEH 0 0 0 ns 10 10 10 ns Read Recover Time Before Write tGHWL tGHWL 0 0 0 ns Read Recover Time Before Write tGHEL tGHEL 0 0 0 ns CE Setup Time tELWL tCS 0 0 0 ns WE Setup Time tWLEL tWS 0 0 0 ns CE Hold Time tWHEH tCH 0 0 0 ns WE Hold Time tEHWH tWH 0 0 0 ns Write Pulse Width tWLWH tWP 30 35 45 ns CE Pulse Width tELEH tCP 30 35 45 ns Write Pulse Width High tWHWL tWPH 25 25 25 ns CE Pulse Width High tEHEL tCPH 25 25 25 ns tWHWH1 tWHWH1 8 8 8 µs 16 16 16 µs tWHWH2 tWHWH2 1 1 1 s — tVCS 50 50 50 µs — tVIDR 500 500 500 ns — tVLHT µs — tWPP 100 100 µs OE Setup Time to WE Active *2 — tOESP 4 4 4 µs CE Setup Time to WE Active *2 — tCSP 4 4 4 µs Recover Time From RY/BY — tRB 0 0 0 ns RESET Pulse Width — tRP 500 500 500 ns RESET Hold Time Before Read — tRH 200 200 200 ns BYTE Switching Low to Output High-Z — tFLQZ 25 25 30 ns BYTE Switching High to Output Active — tFHQV 55 70 90 ns Program/Erase Valid to RY/BY Delay — tBUSY 90 90 90 ns Delay Time from Embedded Output Enable — tEOE 55 70 90 ns Output Enable Setup Time Output Enable Hold Time Programming Operation Read Toggle and Data Polling Byte Word Sector Erase Operation *1 VCC Setup Time Rise Time to VID *2 Voltage Transition Time * Write Pulse Width * 2 2 4 100 4 4 *1: This does not include the preprogramming time. *2: This timing is for Sector Protection operation. 29 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ ERASE AND PROGRAMMING PERFORMANCE Limits Parameter Unit Min Typ Max Sector Erase Time — 1 10 s Word Programming Time — 16 360 µs Byte Programming Time — 8 300 µs Chip Programming Time — 4.2 12.5 s 100,000 — — cycle Program/Erase Cycle Comments Excludes programming time prior to erasure Excludes system-level overhead Excludes system-level overhead — ■ TSOP(1) PIN CAPACITANCE Parameter Symbol Parameter Description Test Setup CIN Input Capacitance VIN = 0 COUT Output Capacitance VOUT = 0 CIN2 Control Pin Capacitance VIN = 0 Typ Max Unit 7.5 9 pF 8 10 pF 9.5 12.5 pF Typ Max Unit 7.5 9 pF 8 10 pF 9.5 12.5 pF Typ Max Unit 7.5 9 pF 8 10 pF 9.5 12.5 pF Notes: • Test conditions TA = + 25°C, f = 1.0 MHz • DQ15/A-1 pin capacitance is stipulated by output capacitance. ■ SOP PIN CAPACITANCE Parameter Symbol Parameter Description Test Setup CIN Input Capacitance VIN = 0 COUT Output Capacitance VOUT = 0 CIN2 Control Pin Capacitance VIN = 0 Notes: • Test conditions TA = + 25°C, f = 1.0 MHz • DQ15/A-1 pin capacitance is stipulated by output capacitance. ■ CSOP PIN CAPACITANCE Parameter Symbol Parameter Description Test Setup CIN Input Capacitance VIN = 0 COUT Output Capacitance VOUT = 0 CIN2 Control Pin Capacitance VIN = 0 Notes: • Test conditions TA = + 25°C, f = 1.0 MHz • DQ15/A-1 pin capacitance is stipulated by output capacitance. 30 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ FBGA PIN CAPACITANCE Parameter Symbol Parameter Description Test Setup CIN Input Capacitance VIN = 0 COUT Output Capacitance VOUT = 0 CIN2 Control Pin Capacitance VIN = 0 Typ Max Unit 7.5 9 pF 8 10 pF 9.5 12.5 pF Typ Max Unit 7.5 9 pF 8 10 pF 9.5 12.5 pF Notes: • Test conditions TA = + 25°C, f = 1.0 MHz • DQ15/A-1 pin capacitance is stipulated by output capacitance. ■ SCSP PIN CAPACITANCE Parameter Symbol Parameter Description Test Setup CIN Input Capacitance VIN = 0 COUT Output Capacitance VOUT = 0 CIN2 Control Pin Capacitance VIN = 0 Notes: • Test conditions TA = + 25°C, f = 1.0 MHz • DQ15/A-1 pin capacitance is stipulated by output capacitance. 31 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ TIMING DIAGRAM • Key to Timing Diagram WAVEFORM INPUTS OUTPUTS Must Be Steady Will Be Steady May Change from H to L Will Be Changing from H to L May Change from L to H Will Be Changing from L to H “H” or “L” Any Change Permitted Changing State Unknown Does Not Apply Center Line is HighImpedance “Off” State 1. AC Waveforms for Read Operations tRC Address Address Stable tACC CE tOE tDF OE tOEH WE tOH tCE Outputs 32 High-Z Output Valid High-Z MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 2. AC Waveforms for Hardware Reset/Read Operations tRC Address Address Stable tACC tRH RESET tOH High-Z Outputs Output Valid 3. AC Waveforms for Alternate WE Controlled Program Operations Data Polling 3rd Bus Cycle Address 555h tWC PA tAS PA tRC tAH CE tCH tCS tCE OE tGHWL tWP tWPH tOE tWHWH1 WE tOH tDF tDS tDH Data Notes: • • • • • • A0h PD DQ7 DOUT DOUT 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. These waveforms are for the ×16 mode. The addresses differ from ×8 mode. 33 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 4. AC Waveforms for Alternate CE Controlled Program Operations 3rd Bus Cycle Address Data Polling PA 555h tWC tAS PA tAH WE tWS tWH OE tGHEL tCP tCPH tWHWH1 CE tDS tDH Data Notes: • • • • • • 34 A0h PD DQ7 DOUT 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. These waveforms are for the ×16 mode. The addresses differ from ×8 mode. MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 5. AC Waveforms Chip/Sector Erase Operations Address 2AAh 555h tWC tAS 555h 555h 2AAh SA* tAH CE tCS tCH OE tGHWL tWP tWPH WE tDS AAh Data 10h for Chip Erase tDH 55h 80h AAh 55h 10h/ 30h tVCS VCC * : SA is the sector address for Sector Erase. Addresses = 555h (Word), AAAh (Byte) for Chip Erase. Note : These waveforms are for the ×16 mode. The addresses differ from ×8 mode. 35 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 6. AC Waveforms for Data Polling during Embedded Algorithm Operations CE tCH tOE tDF OE tOEH WE tCE * DQ7 Data High-Z DQ7 = Valid Data DQ7 tWHWH1 or 2 DQ0 to DQ6 Data DQ0 to DQ6 = Output Flag High-Z DQ0 to DQ6 Valid Data tEOE tBUSY RY/BY *: DQ7 = Valid Data (The device has completed the Embedded operation). 7. AC Waveforms for Toggle Bit I during Embedded Algorithm Operations CE tOEH WE tOES OE tDH DQ6 Data tBUSY * DQ6 = Toggle DQ6 = Stop Toggling DQ6 = Toggle tOE RY/BY *: DQ6 stops toggling (The device has completed the Embedded operation). 36 Valid MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 8. RY/BY Timing Diagram during Program/Erase Operations CE Rising edge of the last WE signal WE Entire programming or erase operations RY/BY tBUSY 9. RESET/RY/BY Timing Diagram WE RESET tRP tRB RY/BY tREADY 10. Timing Diagram for Word Mode Configuration CE tCE BYTE Data Output (DQ7 to DQ0) DQ14 to DQ0 Data Output (DQ14 to DQ0) tELFH tFHQV DQ15 /A-1 A-1 DQ15 37 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 11. Timing Diagram for Byte Mode Configuration CE BYTE tELFL DQ14 to DQ0 Data Output (DQ14 to DQ0) Data Output (DQ7 to DQ0) tACC DQ15 /A-1 DQ15 A-1 tFLQZ 12. BYTE Timing Diagram for Write Operations Falling edge of the last write signal CE or WE Input Valid BYTE tAS 38 tAH MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 13. AC Waveforms for Sector Protection Timing Diagram A17, A16, A15 A14, A13, A12 SPAX SPAY A0 A1 A6 VID VIH A9 tVLHT VID VIH OE tVLHT tVLHT tVLHT tWPP WE tOESP tCSP CE Data 01h tVCS tOE VCC SPAX : Sector Address to be protected SPAY : Next Sector Address to be protected Note: A-1 is VIL on byte mode. 39 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 14. Temporary Sector Unprotection Timing Diagram VCC tVIDR tVLHT tVCS VID VIH RESET CE WE tVLHT tVLHT Program or Erase Command Sequence RY/BY Unprotection Period 15. DQ2 vs. DQ6 Enter Embedded Erasing WE Erase Suspend Erase Enter Erase Suspend Program Erase Suspend Read Erase Suspend Program DQ6 DQ2* Toggle DQ2 and DQ6 with OE or CE * : DQ2 is read from the erase-suspended sector. 40 Erase Resume Erase Suspend Read Erase Erase Complete MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 16. Extended Sector Protection Timing Diagram VCC tVCS RESET tVLHT tVIDR tWC Address tWC SPAX SPAX SPAY A0 A1 A6 CE OE TIME-OUT tWP WE Data 60h 60h 40h 01h 60h tOE SPAX: Sector Address to be protected SPAY : Next Sector Address to be protected TIME-OUT : Time-Out window = 150 µs (Min) 41 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ FLOW CHART 1. Embedded ProgramTM Algorithm EMBEDDED ALGORITHM Start Write Program Command Sequence (See below) Data Polling No Verify Data ? Embedded Program Algorithm in progress Yes Increment Address No Last Address ? Yes Programming Completed Program Command Sequence (Address/Command): 555h/AAh 2AAh/55h 555h/A0h Program Address/Program Data Notes : • The sequence is applied for × 16 mode. • The addresses differ from × 8 mode. 42 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 2. Embedded EraseTM Algorithm EMBEDDED ALGORITHM Start Write Erase Command Sequence (See below) Data Polling No Data = FFh ? Embedded Erase Algorithm in Progress Yes Erasure Completed Chip Erase Command Sequence (Address/Command): Individual Sector/Multiple Sector Erase Command Sequence (Address/Command): 555h/AAh 555h/AAh 2AAh/55h 2AAh/55h 555h/80h 555h/80h 555h/AAh 555h/AAh 2AAh/55h 2AAh/55h 555h/10h Sector Address/30h Sector Address/30h Additional sector erase commands are optional. Sector Address/30h Notes : • The sequence is applied for × 16 mode. • The addresses differ from × 8 mode. 43 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 3. Data Polling Algorithm Start Read Byte (DQ7 to DQ0) Addr. = VA DQ7 = Data? VA = Byte address for programming = Any of the sector addresses within the sector being erased during sector erase or multiple sector erases operation = Any of the sector addresses within the sector not being protected during chip erase operation 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. 44 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 4. Toggle Bit Algorithm Start Read (DQ7 to DQ0) Addr. = "H" or "L" *1 Read (DQ7 to DQ0) Addr. = "H" or "L" DQ6 = Toggle ? No Yes No DQ5 = 1? Yes Read DQ7 to DQ0 Twice Addr. = "H" or "L" DQ6 = Toggle ? *1, *2 No Yes Program/Erase Operation Not Complete. Write Reset Command Program/Erase Operation Complete *1 : Read toggle bit twice to determine whether it is toggling. *2 : Recheck toggle bit because it may stop toggling as DQ5 changes to “1” . 45 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 5. Sector Protection Algorithm Start Setup Sector Addr. (A17, A16, A15, A14, A13, A12) PLSCNT = 1 OE = VID, A9 = VID, CE = VIL, RESET = VIH A6 = 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 Addr. = SPA, A1 = VIH, * A6 = A0 = 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 *: A-1 is V IL on byte mode. 46 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 6. Temporary Sector Unprotection Algorithm 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. 47 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 7. Extended Sector Protection Algorithm Start RESET = VID Wait to 4 µs Device is Operating in Temporary Sector Unprotection Mode No Extended Sector Protection Entry? Yes To Setup Sector Protection Write XXXh/60h PLSCNT = 1 To Protect Sector Write SPA/60h to Sector Address (A6 = A0 = VIL, A1 = VIH) Time Out 150 µs Increment PLSCNT To Verify Sector Protection Setup Next Sector Address Write SPA/40h to Sector Address (A6 = A0 = VIL, A1 = VIH) Read from Sector Address (Addr. = SPA, A1 = VIH, A6 = A0 = VIL) No No PLSCNT = 25? Yes Remove VID from RESET Write Reset Command Device Failed Data = 01h? Yes Protection Other Sector ? No Remove VID from RESET Write Reset Command Sector Protection Completed 48 Yes MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 8. Embedded ProgramTM Algorithm for Fast Mode FAST MODE ALGORITHM Start 555h/AAh Set Fast Mode 2AAh/55h 555h/20h XXXh/A0h Program Address/Program Data Data Polling Verify Data? No In Fast Program Yes Increment Address No Last Address ? Yes Programming Completed XXXh/90h Reset Fast Mode XXXh/F0h Notes : • The sequence is applied for × 16 mode. • The addresses differ from × 8 mode. 49 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ ORDERING INFORMATION Part No. Package Access Time 44-pin plastic SOP (FPT-44P-M16) 55 70 90 MBM29LV400TC-55PFTN MBM29LV400TC-70PFTN MBM29LV400TC-90PFTN 48-pin plastic TSOP (1) (FPT-48P-M19) (Normal Bend) 55 70 90 MBM29LV400TC-55PFTR MBM29LV400TC-70PFTR MBM29LV400TC-90PFTR 48-pin plastic TSOP (1) (FPT-48P-M20) (Reverse Bend) 55 70 90 MBM29LV400TC-55PCV MBM29LV400TC-70PCV MBM29LV400TC-90PCV 48-pin plastic CSOP (LCC-48P-M03) 55 70 90 MBM29LV400TC-55PBT MBM29LV400TC-70PBT MBM29LV400TC-90PBT 48-pin plastic FBGA (BGA-48P-M11) 55 70 90 MBM29LV400TC-55PW MBM29LV400TC-70PW MBM29LV400TC-90PW 48-pin plastic SCSP (WLP-48P-M02) 55 70 90 MBM29LV400BC-55PF MBM29LV400BC-70PF MBM29LV400BC-90PF 44-pin plastic SOP (FPT-44P-M16) 55 70 90 MBM29LV400BC-55PFTN MBM29LV400BC-70PFTN MBM29LV400BC-90PFTN 48-pin plastic TSOP (1) (FPT-48P-M19) (Normal Bend) 55 70 90 MBM29LV400BC-55PFTR MBM29LV400BC-70PFTR MBM29LV400BC-90PFTR 48-pin plastic TSOP (1) (FPT-48P-M20) (Reverse Bend) 55 70 90 MBM29LV400BC-55PCV MBM29LV400BC-70PCV MBM29LV400BC-90PCV 48-pin plastic CSOP (LCC-48P-M03) 55 70 90 MBM29LV400BC-55PBT MBM29LV400BC-70PBT MBM29LV400BC-90PBT 48-pin plastic FBGA (BGA-48P-M11) 55 70 90 MBM29LV400BC-55PW MBM29LV400BC-70PW MBM29LV400BC-90PW 48-pin plastic SCSP (WLP-48P-M02) 55 70 90 MBM29LV400TC-55PF MBM29LV400TC-70PF MBM29LV400TC-90PF 50 Sector Architecture Top Sector Bottom Sector Remarks MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 MBM29LV400 T C -55 PFTN PACKAGE TYPE PFTN = 48-Pin Thin Small Outline Package (TSOP) Normal Bend PFTR = 48-Pin Thin Small Outline Package (TSOP) Reverse Bend PF = 44-Pin Small Outline Package PCV = 48-Pin C- leaded Small Outline Package (CSOP) PBT = 48-Ball Fine Pitch Ball Grid Array Package (FBGA) PW = 48-Ball Super Chip Size Package (SCSP) SPEED OPTION See Product Selector Guide Device Revision BOOT CODE SECTOR ARCHITECTURE T = Top sector B = Bottom sector DEVICE NUMBER/DESCRIPTION MBM29LV400 4Mega-bit (512K × 8-Bit or 256K × 16-Bit) CMOS Flash Memory 3.0 V-only Read, Program, and Erase 51 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 ■ PACKAGE DIMENSIONS Note 1) *1 : These dimensions include resin protrusion. Note 2) *2 : These dimensions do not include resin protrusion. Note 3) Pins width and pins thickness include plating thickness. Note 4) Pins width do not include tie bar cutting remainder. 44-pin plastic SOP (FPT-44P-M16) +0.25 +.010 +0.03 *1 28.45 –0.20 1.120 –.008 0.17 –0.04 +.001 .007 –.002 44 23 16.00±0.20 (.630±.008) Details of "A" part *2 13.00±0.10 (.512±.004) 2.35±0.15 (Mounting height) (.093±.006) INDEX 0.25(.010) 1 1.27(.050) 22 "A" 0~8˚ +0.08 0.42 –0.07 +.0031 .017 –.0028 0.13(.005) M 0.80±0.20 (.031±.008) 0.88±0.15 (.035±.006) +0.10 0.20 –0.15 +.004 .008 –.006 (Stand off) 0.10(.004) C 2002 FUJITSU LIMITED F44023S-c-6-6 Dimensions in mm (inches). Note: The values in parentheses are reference values. (Continued) 52 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 Note 1) * : Values do not include resin protrusion. Resin protrusion and gate protrusion are + 0.15 (.006) Max (each side) . Note 2) Pins width and pins thickness include plating thickness. Note 3) Pins width do not include tie bar cutting remainder. 48-pin plastic TSOP(1) (FPT-48P-M19) LEAD No. 1 48 INDEX Details of "A" part 0.25(.010) 0~8˚ 0.60±0.15 (.024±.006) 24 25 * 12.00±0.20 20.00±0.20 (.787±.008) * 18.40±0.20 (.724±.008) "A" 0.10(.004) (.472±.008) +0.10 1.10 –0.05 +.004 .043 –.002 (Mounting height) +0.03 0.17 –0.08 +.001 .007 –.003 C 0.10±0.05 (.004±.002) (Stand off height) 0.50(.020) 0.22±0.05 (.009±.002) 0.10(.004) M 2003 FUJITSU LIMITED F48029S-c-6-7 Dimensions in mm (inches). Note: The values in parentheses are reference values. (Continued) 53 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 Note 1) * : Values do not include resin protrusion. Resin protrusion and gate protrusion are + 0.15 (.006) Max (each side) . Note 2) Pins width and pins thickness include plating thickness. Note 3) Pins width do not include tie bar cutting remainder. 48-pin plastic TSOP(1) (FPT-48P-M20) LEAD No. 1 48 Details of "A" part INDEX 0.60±0.15 (.024±.006) 0~8˚ 0.25(.010) 24 25 +0.03 0.17 –0.08 +.001 0.10(.004) .007 –.003 0.50(.020) 0.22±0.05 (.009±.002) M 0.10±0.05 (.004±.002) (Stand off height) +0.10 "A" 1.10 –0.05 +.004 * 18.40±0.20 (.724±.008) 20.00±0.20 (.787±.008) C 0.10(.004) .043 –.002 (Mounting height) * 12.00±0.20(.472±.008) 2003 FUJITSU LIMITED F48030S-c-6-7 Dimensions in mm (inches). Note: The values in parentheses are reference values. (Continued) 54 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 Note 1) *1 : Resin protrusion. (Each side : +0.15 (.006) Max) . Note 2) *2 : These dimensions do not include resin protrusion. Note 3) Pins width and pins thickness include plating thickness. Note 4) Pins width do not include tie bar cutting remainder. 48-pin plastic CSOP (LCC-48P-M03) 48 "A" 25 10.00±0.20 (.394±.008) *2 9.50±0.10 (.374±.004) INDEX INDEX +0.05 0.05 –0 +.002 .002 –.0 (Stand off) LEAD No. 1 24 *1 10.00±0.10(.394±.004) 0.95±0.05(.037±.002) (Mounting height) 0.22±0.035 (.009±.001) Details of "A" part 0˚~10˚ 0.40(.016) 0.08(.003) 0.65(.026) 1.15(.045) 9.20(.362)REF C 2003 FUJITSU LIMITED C48056S-c-2-2 Dimensions in mm (inches). Note: The values in parentheses are reference values. (Continued) 55 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 48-ball plastic FBGA (BGA-48P-M11) +0.15 8.00±0.20(.315±.008) +.006 1.05 –0.10 .041 –.004 (Mounting height) 0.38±0.10(.015±.004) (Stand off) (5.60(.220)) 0.80(.031)TYP 6 5 INDEX 6.00±0.20 (.236±.008) 4 (4.00(.157)) 3 2 1 H C0.25(.010) G F E D 48-ø0.45±0.10 (48-ø.018±.004) C B A ø0.08(.003) M 0.10(.004) C 2001 FUJITSU LIMITED B48011S-c-5-3 Dimensions in mm (inches). Note: The values in parentheses are reference values. (Continued) 56 MBM29LV400TC-55/70/90/MBM29LV400BC-55/70/90 (Continued) 48-pin plastic SCSP (WLP-48P-M02) (3.50=0.50x7) ((.138=.020x7)) 4.67±0.10(.184±.004) 0.50(.020) TYP Y 3.52±0.10 (.139±.004) INDEX AREA (LASER MARKING) (2.50=0.50x5) ((.098=.020x5)) 0.50(.020) TYP X 4-Ø0.13(4-Ø.005) 1.00(.039) Max. Z C 0.10(.004) Z 0.25(.010) Min. 48-Ø0.35±0.10 (48-Ø.014±.004) 0.08(.003) M XYZ (Stand off) 2001 FUJITSU LIMITED W48002S-c-1-1 Dimensions in mm (inches). Note: The values in parentheses are reference values. 57 MBM29LV400TC-70/90/12/MBM29LV400BC-70/90/12 FUJITSU LIMITED 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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