M28W320 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

M28W320

32 Mbit (2Mb x16, Boot Block) 3V Supply Flash Memory

STMicroelectronics 

M28W320FCT, M28W320FCB

Command interface

Table 5. Read Electronic Signature(1)

Code

Device

E G W A0 A1 A2-A7 A8-A20 DQ0-DQ7 DQ8-DQ15

Manufacture.

Code

VIL VIL VIH VIL VIL

0

Don't Care

20h

00h

M28W320FCT VIL VIL VIH VIH VIL

0

Don't Care

BAh

88h

Device Code

M28W320FCB VIL VIL VIH VIH VIL

0

Don't Care

BBh

88h

1. RP = VIH.

Table 6. Read Block Lock Signature

Block Status

E G W A0 A1 A2-A7 A8-A11

A12-A20 DQ0 DQ1 DQ2-DQ15

Locked Block

VIL VIL VIH VIL VIH

0 Don't Care Block Address 1

0

00h

Unlocked Block

VIL VIL VIH VIL VIH

0 Don't Care Block Address 0

0

00h

Locked-Down

Block

VIL VIL VIH VIL VIH

0 Don't Care Block Address X(1) 1

00h

1. A Locked-Down Block can be locked "DQ0 = 1" or unlocked "DQ0 = 0"; see Block Locking section.

Table 7.

Word

Read Protection Register and Lock Register

E

G

W

A0-

A7

A8-A20

DQ0

DQ1

DQ2

DQ3-

DQ7

DQ8-

DQ15

Lock

VIL VIL VIH 80h Don't Care Don't Care

Unique ID 0 VIL VIL VIH 81h Don't Care

Unique ID 1 VIL VIL VIH 82h Don't Care

Unique ID 2 VIL VIL VIH 83h Don't Care

Unique ID 3 VIL VIL VIH 84h Don't Care

ID data

ID data

ID data

ID data

OTP 0

VIL VIL VIH 85h Don't Care OTP data

OTP 1

VIL VIL VIH 86h Don't Care OTP data

OTP 2

VIL VIL VIH 87h Don't Care OTP data

OTP 3

VIL VIL VIH 88h Don't Care OTP data

OTP 4

VIL VIL VIH 89h Don't Care OTP data

OTP 5

VIL VIL VIH 8Ah Don't Care OTP data

OTP 6

VIL VIL VIH 8Bh Don't Care OTP data

OTP 7

VIL VIL VIH 8Ch Don't Care OTP data

1. DQ2 in the Protection Lock Register must not be programmed to 0.

OTP Prot.

data

ID data

ID data

ID data

ID data

OTP data

OTP data

OTP data

OTP data

OTP data

OTP data

OTP data

OTP data

Don't Care

See note(1)

Don't

Care

Don't Care

ID data ID data ID data

ID data ID data ID data

ID data ID data ID data

ID data ID data ID data

OTP data

OTP

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OTP

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OTP data

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OTP

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OTP

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