MBM29LV400TC

•Single 3.0 V read, program, and erase Minimizes system level power requirements
•Compatible with JEDEC-standard commands Uses same software commands as E2 PROMs
•Compatible with JEDEC-standard world-wide pinouts  

  48-pin TSOP(I) (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)
•Minimum 100,000 program/erase cycles
•High performance70 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
•Embedded Erase TM  Algorithms Automatically preprograms and erases the chip or any sector
•Embedded Program TM 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

Storage Temperature..............................................................................................................55°C to +125°C
Ambient Temperature with Power Applied.................................................................................40°C to +85°C
Voltage with respect to Ground All pins except A9, OE, RESET (Note 1)..........................0.5 V to VCC+0.5 VVCC
 (Note 1)............................................................................................................0.5 V to +5.5 A9, OE, and RESET
 (Note 2).....................................................................................................................................0.5 V to +13.0 V

Ambient Temperature (TA)...................................................................................................40°C to +85°CVCC
Supply Voltages
MBM29LV400TC/BC-70...................................................................................................................+3.0 V to +3.6 V
MBM29LV400TC/BC-90/-12............................................................................................................+2.7 V to +3.6 V

The MBM29LV400TC/BC are a 8M-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(I), 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.