XICOR XM28C040PM-25, XM28C040PM-20, XM28C040PI-25, XM28C040PI-20, XM28C040PI-15 Datasheet

...
0 (0)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 Megabit Puma Module

XM28C040P

512K x 8 Bit

High Density 5 Volt Byte Alterable Nonvolatile Memory Array

FEATURES

High Density Memory Module

150ns, 200ns, and 250ns Access Times Available

4 Megabit Memory in 1 square inch.

Flexible Multiplane Architecture

Four Separate Chip Selects

32 Separate I/Os

User Configurable I/Os—x8, x16, or x32

User Configurable Page Size—64 Doublewords, 128 Words, or 256 Bytes

Concurrent Read/Write Operations

Able to Continue Reading During a Nonvolatile Write Cycle.

5 Volt Byte or Page Alterable

No Erase Before Write

Software Data Protection

Early End of Write Polling

DATA Polling

Toggle Bit Polling

High Reliability

Endurance: 100,000 Cycles

Data Retention: 100 Years

DESCRIPTION

The XM28C040P is a high density CMOS byte alterable nonvolatile memory array constructed on a cofired ceramic substrate using Xicor’s 128K x 8 components in 32-pad leadless chip carriers. The Substrate is a 66-pin ceramic pin grid array.

The module is configured with four separate chip enable and write enable inputs and 32 separate I/Os. This, along with the small footprint, provides the end user with a large degree of flexibility in board layout and memory configuration. In addition, with the large number of pins and the growth path being implemented, the module will be able to grow to 16 megabits.

FUNCTIONAL DIAGRAM

OE WE1 CE1

WE2 CE2

WE3 CE3

WE4 CE4

128K x 8

128K x 8

128K x 8

128K x 8

A0-A16 I/O0-I/O7

I/O8-I/O15

I/O16-I/O23

I/O24-I/O31

Xicor, 1995, 1996 Patents Pending

1

Characteristics subject to change without notice

7053 8/13/97 T0/C0/D0 SH

 

 

XICOR XM28C040PM-25, XM28C040PM-20, XM28C040PI-25, XM28C040PI-20, XM28C040PI-15 Datasheet

XM28C040P

PIN CONFIGURATION

1

12

23

34

45

56

I/O8

WE2

CE2

I/O22

VCC

CE4

I/O9

A10

I/O14

I/O23

A10

I/O28

I/O10

GND

I/O13

I/O24

WE4

I/O27

NC

I/O11 I/O12

A7

I/O25 I/O26

A16

OE

A11

A12

A4

A1

A9

A8

I/O3

NC/VBB

A5

A2

A0

A15

WE1

A14

A6

A3

NC

VCC

CE

A13

WE3

CE3

I/O0

A10

I/O7

I/O15

A10

I/O21

I/O1

NC

I/O6

I/O16

GND

I/O20

I/O2

I/O4

I/O5

I/O17

I/O18

I/O19

11

22

33

44

55

66

PACKAGE INFORMATION

 

1.09+/-.010 SQ

 

 

 

 

.149+/-.015

 

.050 TYP

 

.180

.320 MAX

 

 

 

 

.050

 

 

 

.100 TYP

.600 TYP

 

.018

PIN #1

 

 

 

IDENTIFIER

 

 

 

(NOT CHAMFERED)

 

 

 

.100 TYP

 

 

 

0.15

 

 

 

ALL MEASUREMENTS IN INCHES

.040

 

.130

.410

 

.164

 

 

 

 

 

2

 

Loading...
+ 2 hidden pages