24AA02E48
2K I2C™ Serial EEPROM with EUI-48™ Node Identity
Device Selection Table
Description:
Part
Number
VCC
Range
Max. Clock
Frequency
Temp.
Ranges
24AA02E48
1.7-5.5V
400 kHz(1)
I
Note 1:
100 kHz for VCC <2.5V
Features:
• Pre-programmed Globally Unique, 48-bit Node
Address
• Compatible with EUI-48™ and EUI-64™
• Single Supply with Operation Down to 1.7V
• Low-Power CMOS Technology:
- Read current 1 mA, max.
- Standby current 1 μA, max.
• 2-Wire Serial Interface, I2C™ Compatible
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce
• 100 kHz and 400 kHz Clock Compatibility
• Page Write Time 3 ms, typical
• Self-Timed Erase/Write Cycle
• 8-Byte Page Write Buffer
• ESD Protection >4,000V
• More than 1 Million Erase/Write Cycles
• Data Retention >200 Years
• Factory Programming Available
• Packages include 8-lead SOIC and 5-lead
SOT-23
• Pb-free and RoHS Compliant
• Temperature Ranges:
- Industrial (I): -40°C to +85°C
The Microchip Technology Inc. 24AA02E48 is a 2 Kbit
Electrically Erasable PROM. The device is organized
as two blocks of 128 x 8-bit memory with a 2-wire serial
interface. Low-voltage design permits operation down
to 1.7V, with maximum standby and active currents of
only 1 μA and 1 mA, respectively. The 24AA02E48 also
has a page write capability for up to 8 bytes of data. The
24AA02E48 is available in the standard 8-pin SOIC
and 5-lead SOT-23 packages.
Package Types
SOT-23
SCL
1
Vss
2
SDA
3
Note:
SOIC
5
4
NC
Vcc
A0
1
8
VCC
A1
2
7
NC
A2
3
6
SCL
VSS
4
5
SDA
Pins A0, A1 and A2 are not used by the 24AA02E48
(no internal connections).
Block Diagram
HV
Generator
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
Page
Latches
I/O
SCL
YDEC
SDA
Note:
This document is supplemented by the
“24AA02 Data Sheet” (DS21709). See
Section 2.0 “Functional Description”.
© 2009 Microchip Technology Inc.
VCC
VSS
Sense Amp.
R/W Control
DS22124B-page 1
24AA02E48
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings (†)
VCC .............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ......................................................................................................... -0.3V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied ..................................................................................................-40°C to +85°C
ESD protection on all pins ......................................................................................................................................................≥ 4 kV
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional operation of the device at those or any other conditions
above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
TABLE 1-1:
DC CHARACTERISTICS
DC CHARACTERISTICS
Param.
No.
D1
Sym.
VIH
Characteristic
TA = -40°C to +85°C, VCC = +1.7V to +5.5V
Industrial (I):
Min.
Typ.
Max.
Units
Conditions
WP, SCL and SDA pins
—
—
—
—
—
D2
—
High-level Input Voltage
0.7 VCC
—
—
V
—
D3
VIL
Low-level Input Voltage
—
—
0.3 VCC
V
—
D4
VHYS
Hysteresis of Schmitt
Trigger inputs
0.05 VCC
—
—
V
(Note)
D5
VOL
Low-level Output Voltage
—
—
0.40
V
IOL = 3.0 mA, VCC = 2.5V
D6
ILI
Input Leakage Current
—
—
±1
μA
VIN = VSS or VCC
D7
ILO
Output Leakage Current
—
—
±1
μA
VOUT = VSS or VCC
D8
CIN,
COUT
Pin Capacitance
(all inputs/outputs)
—
—
10
pF
VCC = 5.0V (Note)
TA = 25°C, FCLK = 1 MHz
D9
ICC write Operating Current
—
0.1
3
mA
VCC = 5.5V, SCL = 400 kHz
D10
ICC read
—
0.05
1
mA
—
D11
ICCS
—
0.01
1
μΑ
Industrial
SDA = SCL = VCC
WP = VSS
Note:
Standby Current
This parameter is periodically sampled and not 100% tested.
DS22124B-page 2
© 2009 Microchip Technology Inc.
24AA02E48
TABLE 1-2:
AC CHARACTERISTICS
AC CHARACTERISTICS
Param.
No.
Sym.
Characteristic
TA = -40°C to +85°C, VCC = +1.7V to +5.5V
Industrial (I):
Min.
Typ.
Max.
Units
Conditions
1
FCLK
Clock frequency
—
—
—
—
400
100
kHz
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
2
THIGH
Clock high time
600
4000
—
—
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
3
TLOW
Clock low time
1300
4700
—
—
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
4
TR
SDA and SCL rise time
(Note 1)
—
—
—
—
300
1000
ns
2.5V ≤ VCC ≤ 5.5V (Note 1)
1.7V ≤ VCC < 2.5V (Note 1)
5
TF
SDA and SCL fall time
—
—
—
300
ns
(Note 1)
6
THD:STA
Start condition hold time
600
4000
—
—
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
7
TSU:STA
Start condition setup
time
600
4700
—
—
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
8
THD:DAT
Data input hold time
0
—
—
—
ns
(Note 2)
9
TSU:DAT
Data input setup time
100
250
—
—
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
10
TSU:STO
Stop condition setup
time
600
4000
—
—
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
11
TAA
Output valid from clock
(Note 2)
—
—
—
—
900
3500
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
12
TBUF
Bus free time: Time the
bus must be free before
a new transmission can
start
1300
4700
—
—
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
13
TOF
Output fall time from VIH
minimum to VIL
maximum
—
—
—
—
250
250
ns
2.5V ≤ VCC ≤ 5.5V
1.7V ≤ VCC < 2.5V
14
TSP
Input filter spike
suppression
(SDA and SCL pins)
—
—
50
ns
(Notes 1 and 3)
15
TWC
Write cycle time (byte or
page)
—
—
5
ms
—
16
—
Endurance
1M
—
—
Note 1:
2:
3:
4:
cycles 25°C (Note 4)
Not 100% tested. CB = total capacitance of one bus line in pF.
As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.
The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs which provide improved
noise spike suppression. This eliminates the need for a TI specification for standard operation.
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.
© 2009 Microchip Technology Inc.
DS22124B-page 3
24AA02E48
FIGURE 1-1:
BUS TIMING DATA
5
4
2
3
SCL
7
SDA
IN
8
10
9
6
14
12
11
SDA
OUT
FIGURE 1-2:
BUS TIMING START/STOP
D4
SCL
6
7
10
SDA
Start
DS22124B-page 4
Stop
© 2009 Microchip Technology Inc.
24AA02E48
2.0
FUNCTIONAL DESCRIPTION
The 24AA02E48 supports a bidirectional, 2-wire bus
and data transmission protocol. A device that sends
data onto the bus is defined as transmitter, while a
device receiving data is defined as a receiver. The bus
has to be controlled by a master device which generates the Serial Clock (SCL), controls the bus access
and generates the Start and Stop conditions, while the
24AA02E48 works as slave. Both master and slave can
operate as transmitter or receiver, but the master
device determines which mode is activated.
Note:
This data sheet documents only the
device’s features and specifications that
are in addition to the features and specifications of the 24AA02 device. For information on the features and specifications
shared by the 24AA02E48 and 24AA02
devices, see the “24AA02 Data Sheet”
(DS21709).
© 2009 Microchip Technology Inc.
DS22124B-page 5
24AA02E48
3.0
PRE-PROGRAMMED EUI-48™
NODE ADDRESS
The 24AA02E48 is programmed at the factory with a
globally unique, EUI-48™ and EUI-64™ compatible
node address stored in the upper half of the array and
permanently write-protected. The remaining 1,024 bits
are available for application use.
The 6-byte EUI-48 node address value is stored in
array locations 0xFA through 0xFF, as shown in
Figure 3-2. The first 3 bytes are the Organizationally
Unique Identifier (OUI) assigned to Microchip by the
IEEE Registration Authority. The remaining 3 bytes are
the Extension Identifier, and are generated by Microchip to ensure a globally-unique, 48-bit value.
3.1
FIGURE 3-1:
MEMORY ORGANIZATION
00h
Standard
EEPROM
80h
EUI-64™ Support
The pre-programmed EUI-48 node address can easily
be encapsulated at the application level to form a globally unique, 64-bit node address for systems utilizing
the EUI-64 standard. This is done by adding 0xFFFE
between the OUI and the Extension Identifier, as
shown below.
Write-Protected
EUI-48™ Block
FFh
FIGURE 3-2:
Description
EUI-48 NODE ADDRESS PHYSICAL MEMORY MAP EXAMPLE
24-bit Extension
Identifier
24-bit Organizationally
Unique Identifier
Data
00h
Array
Address
FAh
04h
A3h
12h
34h
56h
FFh
Corresponding EUI-48™ Node Address: 00-04-A3-12-34-56
Corresponding EUI-64™ Node Address: 00-04-A3-FF-FE-12-34-56
4.0
WRITE PROTECTION
The upper half of the array (80h-FFh) is permanently
write-protected. Write operations to this address range
are inhibited. Read operations are not affected.
The remaining half of the array (00h-7Fh) can be
written to and read from normally.
DS22124B-page 6
© 2009 Microchip Technology Inc.
24AA02E48
5.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 5-1.
TABLE 5-1:
5.1
PIN FUNCTION TABLE
Name
SOIC
SOT23
Description
A0
1
—
Not Connected
A1
2
—
Not Connected
A2
3
—
Not Connected
VSS
4
2
Ground
SDA
5
3
Serial Address/Data I/O
SCL
6
1
Serial Clock
NC
7
5
Not Connected
VCC
8
4
+1.7V to 5.5V Power Supply
Serial Address/Data Input/Output
(SDA)
SDA is a bidirectional pin used to transfer addresses
and data into and out of the device. Since it is an opendrain terminal, the SDA bus requires a pull-up resistor
to VCC (typical 10 kΩ for 100 kHz, 2 kΩ for 400 kHz).
For normal data transfer, SDA is allowed to change
only during SCL low. Changes during SCL high are
reserved for indicating Start and Stop conditions.
5.2
Serial Clock (SCL)
The SCL input is used to synchronize the data transfer
to and from the device.
5.3
A0, A1, A2
These A0, A1 and A2 pins are not used by the
24AA02E48. They may be left floating or tied to either
VSS or VCC.
© 2009 Microchip Technology Inc.
DS22124B-page 7
24AA02E48
6.0
PACKAGING INFORMATION
6.1
Package Marking Information
8-Lead SOIC (3.90 mm)
Example:
24A2E48I
SN e3 0827
13F
XXXXXXXT
XXXXYYWW
NNN
Example:
5-Lead SOT-23
XXNN
2K3F
1st Line Marking Code
Part Number
SOT-23
I Temp.
24AA02E48
Note:
Legend: XX...X
T
Y
YY
WW
NNN
e3
Note:
Note:
Note:
2KNN
NN = Alphanumeric traceability code
Part number or part number code
Temperature (I, E)
Year code (last digit of calendar year)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code (2 characters for small packages)
Pb-free JEDEC designator for Matte Tin (Sn)
For very small packages with no room for the Pb-free JEDEC designator
e3 , the marking will only appear on the outer carton or reel label.
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.
Please visit www.microchip.com/Pbfree for the latest information on Pb-free conversion.
*Standard OTP marking consists of Microchip part number, year code, week code, and traceability code.
DS22124B-page 8
© 2009 Microchip Technology Inc.
24AA02E48
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© 2009 Microchip Technology Inc.
DS22124B-page 9
24AA02E48
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© 2009 Microchip Technology Inc.
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© 2009 Microchip Technology Inc.
DS22124B-page 11
24AA02E48
APPENDIX A:
REVISION HISTORY
Revision A (12/08)
Original release of this document.
Revision B (01/09)
Removed preliminary status.
DS22124B-page 12
© 2009 Microchip Technology Inc.
24AA02E48
THE MICROCHIP WEB SITE
CUSTOMER SUPPORT
Microchip provides online support via our WWW site at
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Users of Microchip products can receive assistance
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•
•
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•
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Customers
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© 2009 Microchip Technology Inc.
DS22124B-page 13
24AA02E48
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.
Please list the following information, and use this outline to provide us with your comments about this document.
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Application (optional):
Would you like a reply?
Device: 24AA02E48
Y
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Literature Number: DS22124B
Questions:
1. What are the best features of this document?
2. How does this document meet your hardware and software development needs?
3. Do you find the organization of this document easy to follow? If not, why?
4. What additions to the document do you think would enhance the structure and subject?
5. What deletions from the document could be made without affecting the overall usefulness?
6. Is there any incorrect or misleading information (what and where)?
7. How would you improve this document?
DS22124B-page 14
© 2009 Microchip Technology Inc.
24AA02E48
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
PART NO.
Device
X
/XX
Temperature Package
Range
Examples:
a)
b)
Device:
24AA02E48:
=
24AA02E48T: =
1.7V, 2 Kbit I2C Serial EEPROM
with EUI-48™ Node Identity
1.7V, 2 Kbit I2C Serial EEPROM
with EUI-48™ Node Identity (Tape
and Reel)
Temperature I
Range:
=
-40°C to +85°C
Package:
=
=
Plastic SOIC (3.90 mm body), 8-lead
SOT-23, 5-lead (Tape and Reel only)
SN
OT
© 2009 Microchip Technology Inc.
24AA02E48-I/SN: Industrial Temperature, 1.7V, SOIC package
24AA02E48T-I/OT: Industrial Temperature, 1.7V, SOT-23 package, tape and
reel
DS22124B-page15
24AA02E48
NOTES:
DS22124B-page 16
© 2009 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
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’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
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OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
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conveyed, implicitly or otherwise, under any Microchip
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Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
FilterLab, Linear Active Thermistor, MXDEV, MXLAB,
SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM,
PICDEM.net, PICtail, PIC32 logo, PowerCal, PowerInfo,
PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total
Endurance, 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.
© 2009, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
© 2009 Microchip Technology Inc.
DS22124B-page 17
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Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
India - Pune
Tel: 91-20-2566-1512
Fax: 91-20-2566-1513
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Japan - Yokohama
Tel: 81-45-471- 6166
Fax: 81-45-471-6122
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Farmington Hills, MI
Tel: 248-538-2250
Fax: 248-538-2260
Kokomo
Kokomo, IN
Tel: 765-864-8360
Fax: 765-864-8387
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
Santa Clara
Santa Clara, CA
Tel: 408-961-6444
Fax: 408-961-6445
Toronto
Mississauga, Ontario,
Canada
Tel: 905-673-0699
Fax: 905-673-6509
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8528-2100
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
China - Hong Kong SAR
Tel: 852-2401-1200
Fax: 852-2401-3431
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
China - Shenzhen
Tel: 86-755-8203-2660
Fax: 86-755-8203-1760
Taiwan - Hsin Chu
Tel: 886-3-572-9526
Fax: 886-3-572-6459
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
Taiwan - Kaohsiung
Tel: 886-7-536-4818
Fax: 886-7-536-4803
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
Taiwan - Taipei
Tel: 886-2-2500-6610
Fax: 886-2-2508-0102
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
UK - Wokingham
Tel: 44-118-921-5869
Fax: 44-118-921-5820
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
01/16/09
DS22124B-page 18
© 2009 Microchip Technology Inc.