M29W128 View Datasheet(PDF) - Numonyx -> Micron

Part Name

Description

Manufacturer

M29W128

128 Mbit 3V Supply Flash Memory

Numonyx -> Micron 

Bus operations

M29W128FH, M29W128FL

Table 6. Read Electronic Signature, 16-bit mode

Address Inputs

Read Cycle(1) E

G

W

A22-

A10

A9

A8-

A7

A6

A5-

A4

A3

A2

A1

A0

Data Inputs/Outputs

DQ15A-1, DQ14-DQ0

Manufacturer

Code

VIL VIL VIL VIL

Device Code

(Cycle 1)

VIL VIL VIL VIH

Device Code VIL VIL VIH X VID X VIL X

(Cycle 2)

VIH VIH VIH VIL

Device Code

(Cycle 3)

VIH VIH VIH VIH

0020h

227Eh

(Both Devices)

2212h

(Both Devices)

228Ah (M29W128FH)

228Bh (M29W128FL)

1. X = VIL or VIH.

Table 7. Block Protection, 16-bit mode

Operation(1)

Address Inputs

E

G

W

RP

VPP/

WP

A22-

A12

A11-

A10

A9

A8-

A7

A6

A5-

A4

A3-

A2

A1

A0

Data Inputs/Outputs

DQ15A-1,

DQ14-DQ0

Verify

Extended

Memory Block

Indicator

(bit DQ7)

VIL VIL VIH VIH VIH BA

Verify Block

Protection

Status

Temporary

Block

Unprotect (2)

X X X VID X

VIH

X VID X VIL X VIL VIH

M29W128FH

0088h

(factory locked)

0008h

(customer lockable)

M29W128FL

0098h

(factory locked)

0018h

(customer lockable)

0001h (protected)

VIL 0000h (unprotected)

Valid

Data Input

1. X = VIL or VIH. BA Any Address in the Block.

2. The RP pin unprotects all the blocks that have been previously protected using a High Voltage protection Technique.

20/78

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