Datasheet XM28C040PM-25, XM28C040PM-20, XM28C040PI-25, XM28C040PI-20, XM28C040PI-15 Datasheet (XICOR)
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4 Megabit Puma Module
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
Nonv olatile Write Cycle.
• 5 Volt Byte or Page Alterable
—No Erase Before Write
• Software Data Protection
• Early End of Write Polling
ATA Polling
—D
—Toggle Bit Polling
• High Reliability
—Endurance: 100,000 Cycles
—Data Retention: 100 Years
XM28C040P
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 la yout 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.
512K x 8 Bit
FUNCTIONAL DIAGRAM
Xicor, 1995, 1996 Patents Pending
7053 8/13/97 T0/C0/D0 SH
OE
WE1CE1WE2CE2WE3CE3WE4CE4
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
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Characteristics subject to change without notice
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XM28C040P
PIN CONFIGURATION
1 12 23 34 45 56
PACKAGE INFORMATION
I/O8 WE2 CE2
I/O9 A10 I/O14
I/O10 GND I/O13
NC I/O11 I/O12
A16 OE A11
A9 A8 I/O3
A0 A15 WE1
NC VCC CE
I/O0 A10 I/O7
I/O1 NC I/O6
I/O2 I/O4 I/O5
11 22 33 44 55 66
I/O22 VCC CE4
I/O23 A10 I/O28
I/O24 WE4 I/O27
A7 I/O25 I/O26
A12 A4 A1
NC/V
A5 A2
BB
A14 A6 A3
A13 WE3 CE3
I/O15 A10 I/O21
I/O16 GND I/O20
I/O17 I/O18 I/O19
.050 TYP
.100 TYP
PIN #1
IDENTIFIER
(NOT CHAMFERED)
.100 TYP
0.15
ALL MEASUREMENTS IN INCHES
1.09+/-.010 SQ
.600 TYP
.040
.410
.149+/-.015
.180
.320 MAX
.164
.050
.018
.130
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XM28C040P
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XM28C040P
ORDERING INFORMATION
XM28C040P X X
–
Access Time
15 = 150ns
20 = 200ns
25 = 250ns
Temperature Range
Devices
Blank = Commercial = 0°C to +70°C
I = Industrial = –40°C to +85°C
M = Military = –55°C to +125°C
P = 66 Pin PUMA Module
LIMITED WARRANTY
Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty,
express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement.
Xicor, Inc. makes no warranty of merchantability or fitness for any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and
prices at any time and without notice.
Xicor, Inc. assumes no responsibility f or the use of an y circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, licenses are implied.
U.S. PATENTS
Xicor products are covered by one or more of the following U.S. Patents: 4,263,664; 4,274,012; 4,300,212; 4,314,265; 4,326,134; 4,393,481; 4,404,475; 4,450,402;
4,486,769; 4,488,060; 4,520,461; 4,533,846; 4,599,706; 4,617,652; 4,668,932; 4,752,912; 4,829, 482; 4,874, 967; 4,883, 976. Foreign patents and additional patents pending.
LIFE RELA TED POLICY
In situations where semiconductor component failure may endanger life, system designers using this product should design the system with appropriate error detection and correction, redundancy and back-up features to prev ent such an occurrence.
Xicor's products are not authorized for use in critical components in life support devices or systems
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose fail-
ure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the
user.
2. A cr itical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or effectiv eness.
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