M29DW641F datasheet(18/80 Pages) NUMONYX

Part #	M29DW641F

Description	64 Mbit (4Mb x16, Multiple Bank, Page, Boot Block) 3V Supply Flash Memory

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Manufacturer	NUMONYX [Numonyx B.V]

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Bus Operations

M29DW641F

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3.6.5

Temporary Unprotection of High voltage Protected Blocks

The RP pin can be used to temporarily unprotect all the blocks previously protected using

the In-System or the Programmer Protection technique (High voltage techniques).

Refer to

Section 2.7: Reset/Block Temporary Unprotect (RP) in the Section 2: Signal

descriptions.

Table 3.

Bus Operations(1)

1.

X = VIL or VIH.

Operation

E

G

W

Address Inputs

Data Inputs/Outputs

A21-A0

DQ15-DQ0

Bus Read

VIL

VIH

Cell Address

Data Output

Bus Write

VIL

VIH

VIL

Command Address

Data Input

Output Disable

X

VIH

XHi-Z

Standby

VIH

XX

X

Hi-Z

Table 4.

Read Electronic Signature(1)

1.

X = VIL or VIH.

Read cycle

E

G

W

Address Inputs

Data

Inputs/Outputs

A21-

A10

A9 A8 A7-A6 A5-A4 A3

A2

A1

A0

DQ15-DQ0

Manufacturer

code

VIL VIL VIH

XVID XVIL

XVIL VIL VIL VIL

0020h

Device code

(Cycle 1)

VIL

VIL VIL VIL VIH

227Eh

Device code

(Cycle 2)

VIH VIH VIH VIL

2203h

Device code

(Cycle 3)

VIH VIH VIH VIH

2200h

(M29DW641F)

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M29DW641F Datasheet(PDF) 18 Page - Numonyx B.V

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