24LC256T-E/MS Microchip Technology, 24LC256T-E/MS Datasheet

IC EEPROM 256KBIT 400KHZ 8MSOP

24LC256T-E/MS

Manufacturer Part Number
24LC256T-E/MS
Description
IC EEPROM 256KBIT 400KHZ 8MSOP
Manufacturer
Microchip Technology
Datasheet

Specifications of 24LC256T-E/MS

Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
256K (32K x 8)
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
24LC256T-E/MS
Manufacturer:
MICROCHIP
Quantity:
12 000
Device Selection Table
Features:
• Single Supply with Operation Down to 1.7V for
• Low-Power CMOS Technology:
• 2-Wire Serial Interface, I
• Cascadable up to Eight Devices
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce
• 100 kHz and 400 kHz Clock Compatibility
• Page Write Time 5 ms max.
• Self-Timed Erase/Write Cycle
• 64-Byte Page Write Buffer
• Hardware Write-Protect
• ESD Protection >4000V
• More than 1 Million Erase/Write Cycles
• Data Retention >200 years
• Factory Programming Available
• Packages Include 8-lead PDIP, SOIC, DFN,
• Pb-Free and RoHS Compliant
Package Types
*24XX256 is used in this document as a generic part number for the 24AA256/24LC256/24FC256 devices.
 2010 Microchip Technology Inc.
Note 1:
24AA256
24LC256
24FC256
24AA256 and 24FC256 Devices, 2.5V for
24LC256 Devices
- Active current 400 uA, typical
- Standby current 100 nA, typical
TSSOP and MSOP
Number
Note: * Pins A0 and A1 are no connects for the MSOP package only.
Part
2:
V
A0
A1
A2
SS
100 kHz for V
400 kHz for V
1
2
3
4
1.7-5.5V
2.5-5.5V
1.7-5.5V
PDIP/SOIC
Range
V
CC
256K I
CC
CC
8
7
6
5
2
C
Max. Clock
< 2.5V.
< 2.5V.
Frequency
400 kHz
1 MHz
400 kHz
V
WP
SCL
SDA
CC
Compatible
(2)
2
(1)
24AA256/24LC256/24FC256
C
Ranges
Temp.
CMOS Serial EEPROM
I, E
I
I
V
A0
A1
A2
SS
TSSOP/MSOP*
1
2
3
4
• Temperature Ranges:
Description:
The Microchip Technology Inc. 24AA256/24LC256/
24FC256 (24XX256*) is a 32K x 8 (256 Kbit) Serial
Electrically Erasable PROM, capable of operation
across a broad voltage range (1.7V to 5.5V). It has
been developed for advanced, low-power applications
such as personal communications or data acquisition.
This device also has a page write capability of up to 64
bytes of data. This device is capable of both random
and sequential reads up to the 256K boundary.
Functional address lines allow up to eight devices on
the same bus, for up to 2 Mbit address space. This
device is available in the standard 8-pin plastic DIP,
SOIC, TSSOP, MSOP and DFN packages.
Block Diagram
SDA
I/O
- Industrial (I):
- Automotive (E):
8
7
6
5
Control
Logic
V
V
I/O
CC
SS
V
WP
SCL
SDA
SCL
CC
A0 A1A2
Memory
Control
Logic
WP
V
A0
A1
A2
SS
-40C to +85C
-40C to +125C
XDEC
1
2
3
4
DFN
DS21203Q-page 1
8
7
6
5
HV Generator
Page Latches
Sense Amp.
R/W Control
EEPROM
Array
V
WP
SCL
SDA
YDEC
CC

Related parts for 24LC256T-E/MS

24LC256T-E/MS Summary of contents

Page 1

... Temp. - Automotive (E): Ranges (1) I Description The Microchip Technology Inc. 24AA256/24LC256/ I 24FC256 (24XX256 32K x 8 (256 Kbit) Serial Electrically Erasable PROM, capable of operation across a broad voltage range (1.7V to 5.5V). It has been developed for advanced, low-power applications such as personal communications or data acquisition. This device also has a page write capability bytes of data ...

Page 2

... A0, A1, A2 A — -40°C to +125°C A SCL = SDA = V A0, A1, A2 +1. -40°C to +85° -40°C to +125°C A Conditions  2.5V < 2.5V  2.5V (Note 5.0V (Note MHz CLK = 5.5V, SCL = 400 kHz = 5.  2010 Microchip Technology Inc. ...

Page 3

... This eliminates the need for This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model, which can be obtained from Microchip’s web site at www.microchip.com.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 Electrical Characteristics: Industrial (I ...

Page 4

... CC 2.5 V  V  5.5V 24FC256 CC 1.7V  V  2.5V CC 2.5V  V  5.5V CC 1.7V  V  2.5V 24FC256 CC 2.5V  V  5.5V 24FC256 CC All except, 24FC256 (Note 1) All except, 24FC256 (Notes 1 and 3) —  2010 Microchip Technology Inc. ...

Page 5

... CC 400 kHz and 1 MHz). For normal data transfer, SDA is allowed to change only during SCL low. Changes during SCL high are reserved for indicating the Start and Stop conditions.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 8-pin 8-pin 8-pin TSSOP ...

Page 6

... NOT generating an Acknowledge bit on the last byte that has been clocked out of the slave. In this case, the slave (24XX256) will leave the data line high to enable the master to generate the Stop condition.  2010 Microchip Technology Inc. an internal ...

Page 7

... ACKNOWLEDGE TIMING SCL SDA Data from transmitte Transmitter must release the SDA line at this point, allowing the Receiver to pull the SDA line low to acknowledge the previous eight bits of data.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 (D) (D) Address or Data Acknowledge Allowed Valid to Change ...

Page 8

... MSOP. code and Address High Byte CONTROL BYTE FORMAT Read/Write Bit Chip Select Bits R/W ACK 0 1 Slave Address Acknowledge Bit Address Low Byte A • • • • • • “don’t care” bit  2010 Microchip Technology Inc. ...

Page 9

... WP pin held high, the device will acknowledge the command, but no write cycle will occur, no data will be written and the device will immediately accept a new command.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 6.3 Write Protection The WP pin allows the user to write-protect the entire ...

Page 10

... FIGURE 6-2: PAGE WRITE S Bus Activity T Control Master A Byte R T SDA Line Bus Activity “don’t care” bit K DS21203Q-page 10 Address Address High Byte Low Byte Address Address High Byte Low Byte Data Byte Data Data Byte  2010 Microchip Technology Inc. ...

Page 11

... If the cycle is complete, then the device will return the ACK and the master can then proceed with the next Read or Write command. See Figure 7-1 for flow diagram.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 FIGURE 7-1: Write Command Send Stop ...

Page 12

... S T Address Address A High Byte Low Byte Data (n) Data ( Data ( internal Address Pointer will S Control Data T Byte Byte Data (  2010 Microchip Technology Inc. ...

Page 13

... Microchip part number, year code, week code, and traceability code. For device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 Example: ...

Page 14

... YYWW NNN Part No. 24AA256 24LC256 24FC256 DS21203Q-page 14 Example: Example: 4L256I 510017 Example First Line Marking Codes TSSOP Package Codes MSOP Package Codes 4AD 4A256T 4LD 4L256T 4FD 4F256T 4LD I510 017 : 24LC256 e 3 I/MF 0510 017  2010 Microchip Technology Inc. ...

Page 15

... N NOTE  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203Q-page 15 ...

Page 16

... N NOTE DS21203Q-page φ α c β  2010 Microchip Technology Inc. ...

Page 17

... Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203Q-page 17 ...

Page 18

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203Q-page 18  2010 Microchip Technology Inc. ...

Page 19

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203Q-page 19 ...

Page 20

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203Q-page 20  2010 Microchip Technology Inc. ...

Page 21

... D N NOTE  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 φ L DS21203Q-page 21 ...

Page 22

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203Q-page 22  2010 Microchip Technology Inc. ...

Page 23

... D N NOTE  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 φ L DS21203Q-page 23 ...

Page 24

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203Q-page 24  2010 Microchip Technology Inc. ...

Page 25

... D N NOTE TOP VIEW A3  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 EXPOSED PAD BOTTOM VIEW A A1 NOTE NOTE DS21203Q-page 25 ...

Page 26

... DS21203Q-page 26  2010 Microchip Technology Inc. ...

Page 27

... Revised Sections 2.1 and 2.4. Removed 14-Lead TSSOP Package. Revision P Revised Features; Changed 1.8V voltage to 1.7V; Replaced Package Drawings; Revised markings (8-lead SOIC); Revised Product ID System. Revision Q (05/10) Revised Table 1-1, Table 1-2, Section 6.1; Updated Package Drawings.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203Q-page 27 ...

Page 28

... NOTES: DS21203Q-page 28  2010 Microchip Technology Inc. ...

Page 29

... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions.  2010 Microchip Technology Inc. 24AA256/24LC256/24FC256 CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • ...

Page 30

... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS21203Q-page 30 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21203Q  2010 Microchip Technology Inc. ...

Page 31

... C Serial e) 24LC256-E/P: 2.5V, PDIP package Serial f) 24LC256-I/SN: 2.5V, SOIC package Serial g) 24LC256T-I/SN: Tape and Reel, Industrial Temp., 2.5V, SOIC package. h) 24LC256-I/MS: 2.5V, MSOP package. i) 24FC256-I/P: 1.7V, High Speed, PDIP package. j) 24FC256-I/SN: 1.7V, High Speed, SOIC package. k) 24FC256T-I/SN: Tape and Reel, Industrial Temp, 1 ...

Page 32

... NOTES: DS21203Q-page 32  2010 Microchip Technology Inc. ...

Page 33

... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 34

... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350  2010 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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