M28W320FSB datasheet(12/55 Pages) STMICROELECTRONICS

部件名	M28W320FSB

功能描述	32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Boot Block, Secure Flash Memories

PDF	55 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

12 / 55 page

M28W320FST, M28W320FSB, M28W640FST, M28W640FSB

12/55

HARDWARE PROTECTION

All devices feature hardware protection. Refer to

SIGNAL DESCRIPTIONS section for a detailed

description of these signals.

VPP ≤VPPLK. The VPP pin protects all the blocks.

Refer to SIGNAL DESCRIPTIONS section for a

detailed description of these signals.

SECURITY FEATURES

The M28W320FS and M28W640FS are equipped

with KRYPTO Security features performing soft-

ware protection. They allow any block to be pro-

tected from program/erase or read operations:

■

Modify Protection including Volatile Block

Lock/Unlock, Non-Volatile Block Modify

Protection, Non-Volatile Password Modify

Protection and Irreversible Protection.

■

Read Protection.

The KRYPTO features (Modify Protection mode,

Read Protection mode and Device Authentication

mechanism) are not described in this Datasheet.

For further details concerning these additional pro-

tection modes please contact ST Sales Offices.

The devices also feature a 64 bit Unique Device

Identifier and a 128 bit user-programmable OTP

segment (see Figure 7., Protection Register Mem-

ory Map and Protection Register Program Com-

mand).

M28W320FSB 数据表(PDF) 12 Page - STMicroelectronics