X28HT512

1

512K

X28HT512

64K x 8 Bit

© Xicor, Inc. 1991, 1995, 1996 Patents Pending

Characteristics subject to change without notice

6614-1.5 8/5/97 T2/C0/D0 EW

FEATURES

—Single 5V Supply

—Self-Timed

—No Erase Before Write

—No Complex Programming Algorithms

—No Overerase Problem

—Endurance: 10,000 Write Cycles

—Data Retention: 100 Years

—Higher Temperature Functionality is Possible

by Operating in the Byte Mode

DESCRIPTION

cated with Xicor’s proprietary, high performance, float-

ing gate CMOS technology which provides Xicor prod-

ucts superior high temperature performance character-

istics. Like all Xicor programmable nonvolatile memo-

ries the X28HT512 is a 5V only device. The X28HT512

features the JEDEC approved pinout for bytewide memo-

ries, compatible with industry standard EPROMS.

The X28HT512 supports a 128-byte page write opera-

tion, effectively providing a 39

µs/byte write cycle and

enabling the entire memory to be written in less than 2.5

seconds.

6614 FHD F02.1

VBB

NC

A15

A12

A7

A6

A5

A4

A3

A2

A1

A0

I/O0

I/O1

I/O2

VSS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

VCC

WE

NC

A14

A13

A8

A9

A11

OE

A10

CE

I/O7

I/O6

I/O5

I/04

I/O3

X28HT512

FLAT PACK

CERDIP

SOIC (R)

PIN CONFIGURATION

X28HT512

(BOTTOM VIEW)

14

A0

16

I/O1

18

VSS

11

A3

9

A5

7

A7

15

I/O0

17

I/O2

19

I/O3

5

A15

2

NC

36

VCC

20

I/O4

21

I/O5

34

NC

23

I/O7

25

A10

27

A11

29

A8

22

I/O6

32

NC

6614 FHD F23

24

CE

26

OE

28

A9

30

A13

13

A1

12

A2

10

A4

8

A6

4

3

V

BB

1

NC

35

WE

33

NC

31

A14

6

A12

PGA

NC