GENERAL DESCRIPTION

The MX29LV400T/B is a 4-mega bit Flash memory or ganized as 512K bytes of 8 bits or 256K words of 16 bits. MXICs Flash memories offer the most cost-effective and reliable read/write non-volatile random access memory. The MX29LV400T/B is packaged in 44-pin SOP, 48-pin TSOP and 48-ball CSP. It is designed to be reprogrammed and erased in system or in standard EPROM programmers.

FEATURES

? Extended single - supply voltage range 2.7V to 3.6V

? 524,288 x 8/262,144 x 16 switchable

? Single power supply operation

- 3.0V only operation for read, erase and program operation

? Fast access time: 55R/70/90ns

? Low power consumption

- 20mA maximum active current

- 0.2uA typical standby current

? Command register architecture

- Byte/word Programming (9us/11us typical)

- Sector Erase (Sector structure 16K-Byte x 1, 8K-Byte x 2, 32K-Byte x1, and 64K-Byte x7)

? Auto Erase (chip & sector) and Auto Program

- Automatically erase any combination of sectors with Erase Suspend capability.

- Automatically program and verify data at specified address

? Erase suspend/Erase Resume

- Suspends sector erase operation to read data from, or program data to, any sector that is not being erased, then resumes the erase.

? Status Reply

- Data polling & Toggle bit for detection of program and erase operation completion.

? Ready/Busy pin (RY/BY)

- Provides a hardware method of detecting program or erase operation completion.

? Sector protection

- Hardware method to disable any combination of sectors from program or erase operations

- Tempoary sector unprotect allows code changes in previously locked sectors.

? 100,000 minimum erase/program cycles

? Latch-up protected to 100mA from -1V to VCC+1V

? Boot Sector Architecture

- T = Top Boot Sector

- B = Bottom Boot Sector

? Low VCC write inhibit is equal to or less than 2.3V

? Package type:

- 44-pin SOP

- 48-pin TSOP

- 48-ball CSP

? Compatibility with JEDEC standard

- Pinout and software compatible with single-power supply Flash