PM29F004 datasheet(13/21 Pages) PMC

Part #	PM29F004

Description	4 Megabit (512K X 8) 5.0 Volt-Only CMOS Flash Memory

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Manufacturer	PMC [PMC-Sierra, Inc]

Direct Link	http://www.pmc-sierra.com

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13 / 21 page

Programmable Microelectronics Corp.

Issue Date: November, 2000 Rev: 1.0

PMC

Pm29F004 Preliminary

BOOT BLOCK LOCKOUT ENABLE (1,2)

Load Data AAh

to

Address 555h

Load Data 55h

to

Address 2AAh

Load Data 80h

to

Address 555h

Load Data AAh

to

Address 555h

Load Data 55h

to

Address 2AAh

Load Data 40h

to

Address 555h

Pause 500 ms

Boot Block

Lockout Enabled

Notes:

1. Please call manufacturer for the command code to

disable the boot block lockout.

2. After excuting the boot block lockout command, the

Product ID Exit command must be issued to return

to standard read mode.

13

Chart 4. Boot Block Lockout Enable Flowchart

DEVICE OPERATIONS FLOWCHARTS (CONTINUED)

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PM29F004 Datasheet(PDF) 13 Page - PMC-Sierra, Inc

PM29F004 Datasheet(HTML) 13 Page - PMC-Sierra, Inc

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