X24C44SI

X24C44SI Datasheet

X24C44

Part	Datasheet
X24C44SI	X24C44SI (pdf)

Related Parts	Information
X24C44S	X24C44S
X24C44P	X24C44P

PDF Datasheet Preview
APPLICATION NOTE A V A I LABLE AN3 • AN7 • AN8 • AN15• AN16 • AN25 • AN29 • AN30 • AN35 • AN36 • AN39 • AN56 • AN69 256 Bit X24C44 16 x 16 Bit Serial Nonvolatile Static RAM • Advanced CMOS version of Xicor’s X2444 • 16 x 16 organization • Single 5V supply • Ideal for use with single chip microcomputers timing I/O interface port compatible COPS , 8051 interfaced to microcontroller ports • Software and hardware control of nonvolatile functions • Auto RECALL on power-up • TTL and CMOS compatible • Low power dissipation current 10mA maximum current 50µA maximum • 8-lead PDIP, Cerdip, and 8-lead SOIC packages • High reliability The Xicor X24C44 is a serial 256 bit NOVRAM featur- t ing a static RAM 16 x 16, overlaid bit-by-bit with a nonvolatile EEPROM array. The X24C44 is fabricated with Xicor’s Advanced CMOS Floating Gate c technology. The Xicor NOVRAM design allows data to be trans- u ferred between the two memory arrays by means of software commands or external hardware inputs. A STORE operation RAM data to EEPROM is com- d pleted in 5ms or less and a RECALL operation EEPROM data to RAM is completed in 2µs or less. o Xicor NOVRAMs are designed for unlimited write oper- ations to RAM, either from the host or RECALLs from r EEPROM and a minimum 1,000,000 STORE opera- tions. Inherent data retention is to be greater Pthan 100 years. cycles 1,000,000 retention 100 years BLOCK DIAGRAM olete Row Decode bs CE 1 OSK 2 Instruction Register Nonvolatile EEPROM Static RAM 256-Bit STORE RECALL Column Decode Control Logic RECALL 6 STORE 7 Instruction Decode 4-Bit Counter Characteristics subject to change without notice. 1 of 14 X24C44 PIN DESCRIPTIONS PIN NAMES Ordering Information X24C44 Device P T -V VCC Limits Blank = 5V ± 10% t Temperature Range c Blank = Commercial = 0°C to +70°C I = Industrial = to +85°C M = Military = to +125°C u Package d P = 8-Lead Plastic DIP D = 8-Lead Ceramic DIP Pro S = 8-Lead SOIC lete LIMITEDWARRANTY Xicor, Inc. 2001 Patents Pending Devices sold by Xicor, Inc. are covered by the warranty and patent provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty, o 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 for any purpose. Xicor, Inc. reserves the right to discontinue production and change and prices at any time and without notice. s Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, or licenses are implied. COPYRIGHTS AND TRADEMARKS Xicor, Inc., the Xicor logo, E2POT, XDCP, XBGA, AUTOSTORE, Direct Write cell, Concurrent Read-Write, PASS, MPS, PushPOT, Block Lock, IdentiPROM, b E2KEY, X24C16, SecureFlash, and SerialFlash are all trademarks or registered trademarks of Xicor, Inc. All other brand and product names mentioned herein are used for identification purposes only, and are trademarks or registered trademarks of their respective holders. U.S. PATENTS O Xicor products are covered by one or more of the following U.S. Patents 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 4,980,859 5,012,132 5,003,197 5,023,694 5,084,667 5,153,880 5,153,691; 5,161,137 5,219,774 5,270,927 5,324,676 5,434,396 5,544,103 5,587,573 5,835,409 Foreign patents and additional patents pending. LIFE RELATED 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 prevent such an occurrence. Xicor’s products are not authorized for use in critical components in life support devices or systems. 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 failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a injury to the user. A critical 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 effectiveness. Characteristics subject to change without notice. 14 of 14

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APPLICATION NOTE

A V A I LABLE

AN3
• AN7
• AN8
• AN15• AN16
• AN25
• AN29
• AN30
• AN35
• AN36
• AN39
• AN56
• AN69
256 Bit

X24C44
16 x 16 Bit

Serial Nonvolatile Static RAM
• Advanced CMOS version of Xicor’s X2444
• 16 x 16 organization
• Single 5V supply
• Ideal for use with single chip microcomputers
timing I/O interface port compatible COPS , 8051 interfaced to microcontroller ports
• Software and hardware control of nonvolatile functions
• Auto RECALL on power-up
• TTL and CMOS compatible
• Low power dissipation current 10mA maximum current 50µA maximum
• 8-lead PDIP, Cerdip, and 8-lead SOIC packages
• High reliability

The Xicor X24C44 is a serial 256 bit NOVRAM featur-
t ing a static RAM 16 x 16, overlaid bit-by-bit
with a nonvolatile EEPROM array. The X24C44 is fabricated with Xicor’s Advanced CMOS Floating Gate
c technology.

The Xicor NOVRAM design allows data to be trans-
u ferred between the two memory arrays by means of
software commands or external hardware inputs. A STORE operation RAM data to EEPROM is com-
d pleted in 5ms or less and a RECALL operation

EEPROM data to RAM is completed in 2µs or less.
o Xicor NOVRAMs are designed for unlimited write oper-
ations to RAM, either from the host or RECALLs from
r EEPROM and a minimum 1,000,000 STORE opera-
tions. Inherent data retention is to be greater

Pthan 100 years.
cycles 1,000,000
retention 100 years BLOCK DIAGRAM
olete Row Decode
bs CE 1

OSK 2

Instruction Register

Nonvolatile EEPROM

Static RAM 256-Bit

STORE RECALL

Column Decode

Control Logic

RECALL 6 STORE 7

Instruction Decode
4-Bit Counter

Characteristics subject to change without notice. 1 of 14

X24C44

PIN DESCRIPTIONS

PIN NAMES
Ordering Information

X24C44 Device

P T -V

VCC Limits

Blank = 5V ± 10%
t Temperature Range c Blank = Commercial = 0°C to +70°C

I = Industrial = to +85°C M = Military = to +125°C
u Package d P = 8-Lead Plastic DIP

D = 8-Lead Ceramic DIP

Pro S = 8-Lead SOIC
lete LIMITEDWARRANTY

Xicor, Inc. 2001 Patents Pending

Devices sold by Xicor, Inc. are covered by the warranty and patent provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty,
o 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 for any purpose. Xicor, Inc. reserves the right to discontinue production and change and prices at any time and without notice.
s Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, or licenses are implied.

COPYRIGHTS AND TRADEMARKS

Xicor, Inc., the Xicor logo, E2POT, XDCP, XBGA, AUTOSTORE, Direct Write cell, Concurrent Read-Write, PASS, MPS, PushPOT, Block Lock, IdentiPROM,
b E2KEY, X24C16, SecureFlash, and SerialFlash are all trademarks or registered trademarks of Xicor, Inc. All other brand and product names mentioned herein are
used for identification purposes only, and are trademarks or registered trademarks of their respective holders.

U.S. PATENTS

O Xicor products are covered by one or more of the following U.S. Patents 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 4,980,859 5,012,132 5,003,197 5,023,694 5,084,667 5,153,880 5,153,691;
5,161,137 5,219,774 5,270,927 5,324,676 5,434,396 5,544,103 5,587,573 5,835,409 Foreign patents and additional patents pending.

LIFE RELATED 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 prevent such an occurrence.

Xicor’s products are not authorized for use in critical components in life support devices or systems.

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 failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a injury to the user.

A critical 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 effectiveness.

Characteristics subject to change without notice. 14 of 14

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived X24C44SI Datasheet file may be downloaded here without warranties.

Datasheet ID: X24C44SI 639234