AT29C1024 datasheet(8/12 Pages) ATMEL | 1 Megabit 64K x 16 5-volt Only CMOS Flash Memory

Part #	AT29C1024

Description	1 Megabit 64K x 16 5-volt Only CMOS Flash Memory

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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Software Protected Program Cycle Waveform

(1, 2, 3)

Notes: 1. A7 through A15 must specify the same page address

during each high to low transition of WE (or CE) after

the software code has been entered.

2. OE must be high when WE and CE are both low.

3. All words that are not loaded within the sector being

programmed will be indeterminate.

LOAD DATA

TO

SECTOR (128 WORDS)

(4)

LOAD DATA A0A0

TO

ADDRESS 5555

LOAD DATA 5555

TO

ADDRESS 2AAA

LOAD DATA AAAA

TO

ADDRESS 5555

Notes for software program code:

1. Data Format: I/O15 - I/O0 (Hex);

Address Format: A14 - A0 (Hex).

2. Write Protect state will be activated at end of write period

even if no other data is loaded.

3. Write Protect state will be deactivated at end of write period

even if no other data is loaded.

4. 128 words of data MUST BE loaded.

ENTER DATA

PROTECT STATE

(2)

WRITES ENABLED

Software Data

Protection Enable Algorithm

(1)

LOAD DATA XXXX

TO

SECTOR (128 WORDS)

(4)

LOAD DATA 5555

TO

ADDRESS 2AAA

LOAD DATA AAAA

TO

ADDRESS 5555

LOAD DATA 8080

TO

ADDRESS 5555

LOAD DATA 5555

TO

ADDRESS 2AAA

LOAD DATA AAAA

TO

ADDRESS 5555

LOAD DATA 2020

TO

ADDRESS 5555

EXIT DATA

PROTECT STATE

(3)

Software Data

Protection Disable Algorithm

(1)

4-148

AT29C1024

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AT29C1024 Datasheet(PDF) 8 Page - ATMEL Corporation

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