M28W640FST datasheet(12/55 Pages) STMICROELECTRONICS

Part #	M28W640FST

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

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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M28W320FST, M28W320FSB, M28W640FST, M28W640FSB

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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).

Similar Part No. - M28W640FST

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	M28W640FSU	797Kb / 49P	32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Uniform Block, Secure Flash Memories
	M28W640FSU-ZA	797Kb / 49P	32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Uniform Block, Secure Flash Memories
	M28W640FSU-ZAE	797Kb / 49P	32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Uniform Block, Secure Flash Memories
	M28W640FSU-ZAF	797Kb / 49P	32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Uniform Block, Secure Flash Memories
	M28W640FSU-ZAT	797Kb / 49P	32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Uniform Block, Secure Flash Memories

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	M28W320FSU	797Kb / 49P	32Mbit (2Mb x16) and 64Mbit (4Mb x16) 3V Supply, Uniform Block, Secure Flash Memories
	M29W320DT	524Kb / 56P	32 Mbit 4Mb x8 or 2Mb x16, Boot Block 3V Supply Flash Memory
	M29W320ET	887Kb / 46P	32 Mbit (4Mb x8 or 2Mb x16, Boot Block) 3V Supply Flash Memory
	M58LV064A	450Kb / 65P	64 Mbit 4Mb x16 or 2Mb x32, Uniform Block, Burst 3V Supply Flash Memories
	M28W640ECT	838Kb / 55P	64 Mbit 4Mb x16, Boot Block 3V Supply Flash Memory
Numonyx B.V	M28W320FCT	1Mb / 69P	32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory
STMicroelectronics	M28W640CT	393Kb / 54P	64 Mbit 4Mb x16, Boot Block 3V Supply Flash Memory
	M28W320CT	414Kb / 42P	32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory
	M28W320BT	211Kb / 43P	32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory May 2002
	M28W320EBT	299Kb / 45P	32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory