MX25L4004

The MX25L4004 is a CMOS 4,390,912 bit serial Flash EEPROM, which is configured as 548,864 x 8 internally.The MX25L4004 features a serial peripheral interface and software protocal allowing operation on a simple 3- wire bus. The three bus signals are a clock input (SCLK), a serial data input (SI), and a serial data output (SO). SPI access to the device is enabled by CS input.

The MX25L4004 features sector protected and unprotected modes, which disable/enable both program and erase operation in the top four sectors.

After program/erase command is issued, auto program/erase algorithms which program/erase and verify the specified sector/page locations will be executed. Program command is executed on a page (134 bytes) basis,and erase command is executed on a sector (536 bytes) basis.

To provide user with ease of interface, a status register is included to indicate the status of the chip. The status read command can be issued to detect completion and error flag status of a program or erase operation.

When the device is not in operation and CS is high, it is put in standby mode and draws less than 30uA DC current.To save power further, the device may be put into sleep mode. During sleep mode, the device only draws 1uA DC current. Recovery time from sleep mode is less than 25us.

The MX25L4004 utilizes MXIC's proprietary memory cell which reliably stores memory contents even after 10,000 program and erase cycles.