A290021U-150 datasheet(2/32 Pages) AMICC

Part #	A290021U-150

Description	256K X 8 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory

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Manufacturer	AMICC [AMIC Technology]

Direct Link	http://www.amictechnology.com

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A29002/A290021 Series

(February, 2002, Version 1.0)

2

AMIC Technology, Inc.

The host system can detect whether a program or erase

operation is complete by reading the I/O7 ( Data Polling) and

I/O6 (toggle) status bits. After a program or erase cycle has

been completed, the device is ready to read array data or

accept another command.

The sector erase architecture allows memory sectors to be

erased and reprogrammed without affecting the data contents

of other sectors. The A29002 is fully erased when shipped

from the factory.

The hardware sector protection feature disables operations

for both program and erase in any combination of the

sectors

Pin Configurations

of

memory.

This

can

be

achieved

via

programming

equipment.

The Erase Suspend feature enables the user to put erase on

hold for any period of time to read data from, or program data

to, any other sector that is not selected for erasure. True

background erase can thus be achieved.

Power consumption is greatly reduced when the device is

placed in the standby mode.

The hardware RESET pin terminates any operation in

progress and resets the internal state machine to reading

array data (This feature is not available on the A290021).

n DIP

n PLCC

RESET

A16

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

I/O0

I/O1

I/O2

I/O3

VSS

I/O4

I/O5

I/O6

I/O7

CE

A10

OE

A9

A8

A13

WE

A17

A14

VCC

A11

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

A7

A6

A5

A4

A3

A2

A1

A0

I/O0

21

22

23

24

25

26

27

28

29

12

13

11

8

9

5

7

6

CE

I/O7

A10

A29002L/

A290021L

OE

A11

A9

A8

A13

A14

10

NC on A290021

n TSOP (Forward type)

A29002V/A290021V

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

A9

A8

A13

A14

A17

WE

VCC

A16

A15

A12

A7

A6

A5

A4

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

A3

A2

A1

A0

I/O0

I/O1

I/O2

VSS

I/O3

I/O4

I/O5

I/O6

I/O7

CE

A10

OE

A11

RESET

NC on A290021

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