MX25L1605 데이터 시트보기 (PDF) - Macronix International

부품명

상세내역

제조사

MX25L1605

16M-BIT [x 1] CMOS SERIAL eLiteFlash™ MEMORY

Macronix International 

MX25L1605

DATA PROTECTION

The MX25L1605 are designed to offer protection against

accidental erasure or programming caused by spurious

system level signals that may exist during power

transition. During power up the device automatically resets

the state machine in the Read mode. In addition, with its

control register architecture, alteration of the memory

contents only occurs after successful completion of

specific command sequences. The device also

incorporates several features to prevent inadvertent write

cycles resulting from VCC power-up and power-down

transition or system noise.

• Power-on reset and tPUW: to avoid sudden power

switch by system power supply transition, the power-

on reset and tPUW (internal timer) may protect the

Flash.

• Valid command length checking: The command length

will be checked whether it is at byte base and com-

pleted on byte boundary.

• Write Enable (WREN) command: WREN command is

required to set the Write Enable Latch bit (WEL) before

other command to change data. The WEL bit will return

to reset stage under following situation:

- Power-up

- Write Disable (WRDI) command completion

- Write Status Register (WRSR) command completion

- Page Program (PP) command completion

- Sector Erase (SE) command completion

- Block Erase (BE) command completion

- Chip Erase (CE) command completion

• Software Protection Mode (SPM): by using BP0-BP2

bits to set the part of Flash protected from data change.

• Hardware Protection Mode (HPM): by using WP# going

low to protect the BP0-BP2 bits and SRWD bit from

data change.

• Deep Power Down Mode: By entering deep power down

mode, the flash device also is under protected from

writing all commands except Release from deep power

down mode command (RDP) and Read Electronic

Signature command (RES).

P/N: PM1168

REV. 1.3, NOV. 06, 2006

4

Share Link: