2

3590A–FLASH–12/05

AT49BV163D(T)

Erase Suspend/Resume and Program Suspend/Resume commands will not work while in this

mode; if entered they will result in data being programmed into the device. It is not recom-

mended that the six-byte code reside in the software of the final product but only exist in external

programming code.

The BYTE pin controls whether the device data I/O pins operate in the byte or word configura-

tion. If the BYTE pin is set at logic “1”, the device is in word configuration, I/O0 - I/O15 are active

and controlled by CE and OE.

If the BYTE pin is set at logic “0”, the device is in byte configuration, and only data I/O pins I/O0 -

I/O7 are active and controlled by CE and OE. The data I/O pins I/O8 - I/O14 are tri-stated, and

the I/O15 pin is used as an input for the LSB (A-1) address function.

2.

Pin Configurations

Pin Name

Function

A0 - A19

Addresses

CE

Chip Enable

OE

Output Enable

WE

Write Enable

RESET

Reset

RDY/BUSY

READY/BUSY Output

I/O0 - I/O14

Data Inputs/Outputs

I/O15 (A-1)

I/O15 (Data Input/Output, Word Mode)

A-1 (LSB Address Input, Byte Mode)

BYTE

Selects Byte or Word Mode

NC

No Connect

2.1

48-lead TSOP (Type 1) Top View

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

A15

A14

A13

A12

A11

A10

A9

A8

A19

NC

WE

RESET

NC

NC

RDY/BUSY

A18

A17

A7

A6

A5

A4

A3

A2

A1

A16

BYTE

GND

I/O15/A-1

I/O7

I/O14

I/O6

I/O13

I/O5

I/O12

I/O4

VCC

I/O11

I/O3

I/O10

I/O2

I/O9

I/O1

I/O8

I/O0

OE

GND

CE

A0

2.2

48-ball CBGA Top View (Ball Down)

A

B

C

D

E

F

G

H

1

2

3

45

6

RDY/BUSY

NC

A18

NC

I/O2

I/O10

I/O11

I/O3

A3

A4

A2

A1

A0

CE

OE

VSS

A7

A17

A6

A5

I/O0

I/O8

I/O9

I/O1

WE

RST

NC

A19

I/O5

I/O12

VCC

I/O4

A9

A8

A10

A11

I/O7

I/O14

I/O13

I/O6

A13

A12

A14

A15

A16

BYTE

I/015/A-1

VSS