M29W128 View Datasheet(PDF) - Numonyx -> Micron

Part Name

Description

Manufacturer

M29W128

128 Mbit 3V Supply Flash Memory

Numonyx -> Micron 

M29W128FH, M29W128FL

4

Hardware protection

Hardware protection

The M29W128F features hardware protection/unprotection. Refer to Table 8 for details on

hardware block protection/unprotection using VPP/WP and RP pins.

4.1

Write Protect

The VPP/WP pin protects the highest or lowest block (refer to Section 2: Signal descriptions

for a detailed description of the signals).

4.2

Temporary Block Unprotect

When held at VID, the Reset/Block Temporary Unprotect pin, RP, will temporarily unprotect

all the blocks previously protected using a High Voltage Block Protection technique.

Table 8. Hardware Protection

VPP/WP

RP

VIL

VIH or VID

VPPH

VIH

VID

VID

VIH or VID

Function

Highest or lowest block protected from Program/Erase

operations

All blocks temporarily unprotected except the highest or

lowest block

All blocks temporarily unprotected

All blocks temporarily unprotected

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