24LC256T-I/MF Microchip, 24LC256T-I/MF Datasheet

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24LC256T-I/MF

Manufacturer Part Number
24LC256T-I/MF
Description
Ic Eeprom 256k Ser Ind 8dfn-s
Manufacturer
Microchip
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
24LC256T-I/MF
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.
 1998-2012 Microchip Technology Inc.
24AA256
24LC256
24FC256
Note 1:
24AA256 and 24FC256 Devices, 2.5V for
24LC256 Devices
- Active current 400 uA, typical
- Standby current 100 nA, typical
TSSOP and MSOP
Number
Note 1: * Pins A0 and A1 are no connects for the MSOP package only.
Note 2: Available in I-temp, “AA” only.
Part
V
A0
A1
A2
SS
2:
1
2
3
4
100 kHz for V
400 kHz for V
PDIP/SOIC
1.7-5.5V
2.5-5.5V
1.7-5.5V
Range
V
CC
8
7
6
5
256K I
CC
CC
2
V
WP
SCL
SDA
C
Max. Clock
CC
< 2.5V.
< 2.5V.
Frequency
400 kHz
1 MHz
400 kHz
Compatible
(2)
2
V
(1)
A0
A1
A2
SS
C™ CMOS Serial EEPROM
24AA256/24LC256/24FC256
TSSOP/MSOP
1
2
3
4
Ranges
Temp.
I, E
I, E
I
8
7
6
5
(1)
V
WP
SCL
SDA
CC
• 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. The
24AA256 is also available in the 8-lead Chip Scale
package.
Block Diagram
SDA
I/O
- Industrial (I):
- Automotive (E):
Control
Logic
V
V
V
A0
A1
A2
I/O
SS
CC
SS
SCL
1
2
3
4
DFN
A0 A1A2
Memory
Control
Logic
8
7
6
5
WP
V
WP
SCL
SDA
CC
-40C to +85C
-40C to +125C
WP
XDEC
CS (Chip Scale)
SDA SCL V
V
1
CC
6
(TOP DOWN VIEW,
BALLS NOT VISIBLE)
4
DS21203S-page 1
A1 A0
2
7
HV Generator
Page Latches
5
Sense Amp.
R/W Control
EEPROM
3
8
Array
YDEC
SS
(2)
A2

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24LC256T-I/MF Summary of contents

Page 1

... Temp. - Automotive (E): Ranges Description: ( The Microchip Technology Inc. 24AA256/24LC256/ 24FC256 (24XX256 32K x 8 (256 Kbit) Serial I 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. ...

Page 2

... T = -40°C to +85°C A SCL = SDA = V A0, A1, A2 A — -40°C to +125°C A SCL = SDA = V A0, A1, A2  1998-2012 Microchip Technology Inc. +1. -40°C to +85° -40°C to +125°C A Conditions  2.5V < 2.5V  2.5V (Note ...

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.  1998-2012 Microchip Technology Inc. ...

Page 4

... 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. FIGURE 1-1: BUS TIMING DATA ...

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.  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 Table 2-1. 8-pin 8-pin ...

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.  1998-2012 Microchip Technology Inc. an internal ...

Page 7

... 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.  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 (D) (D) Address or Data Acknowledge Allowed Valid to Change ...

Page 8

... CONTROL BYTE FORMAT Read/Write Bit Chip Select Bits R/W ACK Slave Address Acknowledge Bit Address Low Byte A A • • • • • • “don’t care” bit  1998-2012 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.  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 6.3 Write Protection The WP pin allows the user to write-protect the entire ...

Page 10

... High Byte Low Byte Address Address High Byte Low Byte Data Byte Data Data Byte  1998-2012 Microchip Technology Inc. ...

Page 11

... If no ACK is returned, the Start bit and control byte must be resent. 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 flow diagram.  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 FIGURE 7-1: Initiate Write Cycle Figure 7-1 ...

Page 12

... S T Address Address A High Byte Low Byte (Figure 8-2). After a random Read internal Address Pointer will S Control Data T Byte Byte  1998-2012 Microchip Technology Inc. ...

Page 13

... FIGURE 8-3: SEQUENTIAL READ Control Bus Activity Byte Master SDA Line Bus Activity  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 Data (n) Data ( Data ( Data ( DS21203S-page 13 ...

Page 14

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. *Standard device marking consists of Microchip part number, year code, week code, and traceability code. For device marking beyond this, certain price adders apply ...

Page 15

... DFN-S XXXXXXX T/XXXXX YYWW NNN 8-Lead Chip Scale XXX XYYW WNNN Part No. 24AA256 24LC256 24FC256  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 Example: Example: 4L256I 510017 Example Example: First Line Marking Codes TSSOP Package Codes MSOP Package Codes 4AD 4A256T 4LD ...

Page 16

... N NOTE DS21203S-page  1998-2012 Microchip Technology Inc. ...

Page 17

... Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 17 ...

Page 18

... DS21203S-page 18  1998-2012 Microchip Technology Inc. ...

Page 19

... Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 19 ...

Page 20

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203S-page 20  1998-2012 Microchip Technology Inc. ...

Page 21

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 21 ...

Page 22

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203S-page 22  1998-2012 Microchip Technology Inc. ...

Page 23

... D N NOTE  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 φ L DS21203S-page 23 ...

Page 24

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203S-page 24  1998-2012 Microchip Technology Inc. ...

Page 25

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 25 ...

Page 26

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203S-page 26  1998-2012 Microchip Technology Inc. ...

Page 27

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 27 ...

Page 28

... D N NOTE TOP VIEW A3 DS21203S-page EXPOSED PAD BOTTOM VIEW A A1 NOTE NOTE  1998-2012 Microchip Technology Inc. ...

Page 29

... Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 29 ...

Page 30

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203S-page 30  1998-2012 Microchip Technology Inc. ...

Page 31

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 31 ...

Page 32

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21203S-page 32  1998-2012 Microchip Technology Inc. ...

Page 33

... 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. Revision R (07/2011) Added Chip Scale package. Revision S (12/2012) Revise Automotive E temp.  1998-2012 Microchip Technology Inc. 24AA256/24LC256/24FC256 DS21203S-page 33 ...

Page 34

... NOTES: DS21203S-page 34  1998-2012 Microchip Technology Inc. ...

Page 35

... THE MICROCHIP WEB SITE Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains information: • Product Support – Data sheets and errata, application notes and sample programs, design resources, user’ ...

Page 36

... READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150 ...

Page 37

... MSOP package 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, 1.7V, High Speed, SOIC package ...

Page 38

... NOTES: DS21203S-page 38  1998-2012 Microchip Technology Inc. ...

Page 39

... Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’ ...

Page 40

... Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-5778-366 Fax: 886-3-5770-955 Taiwan - Kaohsiung Tel: 886-7-213-7828 Fax: 886-7-330-9305 Taiwan - Taipei Tel: 886-2-2508-8600 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350  1998-2012 Microchip Technology Inc. 11/29/12 ...

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