24AA02H/24LC02BH
2K I2C™ Serial EEPROM with Half-Array Write-Protect
Device Selection Table
Part
Number
VCC
Range
Max. Clock
Frequency
24AA02H
1.7-5.5
400 kHz(1)
24LC02BH
2.5-5.5
400 kHz
Note 1:
Description:
Temp.
Ranges
I
I, E
100 kHz for VCC <2.5V
Features:
• Single Supply with Operation down to 1.7V for
24AA02H Devices, 2.5V for 24LC02BH Devices
• Low-Power CMOS Technology:
- Read current 1 mA, max.
- Standby current 1 μA, max. (I-temp)
• 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
• Hardware Write-Protect for Half-Array (80h-FFh)
• ESD Protection >4,000V
• More than 1 Million Erase/Write Cycles
• Data Retention >200 Years
• Factory Programming Available
• Packages include 8-lead PDIP, SOIC, TSSOP,
TDFN, MSOP, 5-lead SOT-23 and SC-70
• Pb-Free and RoHS Compliant
• Temperature Ranges:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
The Microchip Technology Inc. 24AA02H/24LC02BH
(24XX02H*) is a 2 Kbit Electrically Erasable PROM.
The device is organized as one block of 256 x 8-bit
memory with a 2-wire serial interface. Low-voltage
design permits operation down to 1.7V, with standby
and active currents of only 1 μA and 1 mA, respectively. The 24XX02H also has a page write capability for
up to 8 bytes of data. The 24XX02H is available in the
standard 8-pin PDIP, surface mount SOIC, TSSOP, 2x3
TDFN and MSOP packages, and is also available in
the 5-lead SOT-23 and SC-70 packages.
Package Types
SOIC, TSSOP
PDIP, MSOP
A0
1
8
VCC
A0
1
8
VCC
A1
2
7
WP
A1
2
7
WP
A2
3
6
SCL
A2
3
6
SCL
VSS
4
5
SDA VSS
4
5
SDA
SOT-23/SC-70
SCL
1
5
TDFN
WP
A0 1
A1 2
Vss
2
SDA
3
Note:
A2 3
VSS 4
4
8 VCC
7 WP
6 SCL
5 SDA
Vcc
Pins A0, A1 and A2 are not used by the 24XX02H
(no internal connections).
Block Diagram
HV
Generator
WP
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
Page
Latches
I/O
SCL
YDEC
SDA
VCC
VSS
© 2008 Microchip Technology Inc.
Sense Amp.
R/W Control
DS22105A-page 1
24AA02H/24LC02BH
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings (†)
VCC .............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied ................................................................................................-40°C to +125°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.
Sym.
Characteristic
Electrical Characteristics:
Industrial (I):
VCC = +1.7V to 5.5V
Automotive (E): VCC = +2.5V to 5.5V
Min.
Max.
Units
TA = -40°C to +85°C
TA = -40°C to +125°C
Conditions
D1
—
A0, A1, A2, SCL, SDA
and WP pins:
—
—
—
—
D2
VIH
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
(SDA, SCL pins)
0.05 VCC
—
V
(Note)
D5
VOL
Low-level output voltage
—
0.40
V
IOL = 3.0 ma @ VCC = 4.5V
IOL = 2.1 ma @ VCC = 2.5V
D6
ILI
Input leakage current
—
±1
μA
VIN = VSS or VCC, WP = VSS
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, f = 1 MHz
D9
ICC Read Operating current
—
1
mA
VCC = 5.5V, SCL = 400 kHz
—
3
mA
VCC = 5.5V
—
1
μA
VCC = 5.5V, SCL = SDA = VCC
WP = VSS, A0, A1, A2 = VSS
ICC
D10
Note:
Write
ICCS
Standby current
This parameter is periodically sampled and not 100% tested.
DS22105A-page 2
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
TABLE 1-2:
AC CHARACTERISTICS
Electrical Characteristics:
Industrial (I):
VCC = +1.7V to 5.5V
Automotive (E): VCC = +2.5V to 5.5V
AC CHARACTERISTICS
Param.
Symbol
No.
Characteristic
Min.
Max.
Units
TA = -40°C to +85°C
TA = -40°C to +125°C
Conditions
1
FCLK
Clock frequency
—
—
100
400
kHz
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
2
THIGH
Clock high time
4000
600
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
3
TLOW
Clock low time
4700
1300
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
4
TR
SDA and SCL rise time
(Note 1)
—
—
1000
300
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
5
TF
SDA and SCL fall time
(Note 1)
—
—
1000
300
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
6
THD:STA Start condition hold time
4000
600
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
7
TSU:STA
4700
600
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
8
THD:DAT Data input hold time
0
—
ns
(Note 2)
9
TSU:DAT
Data input setup time
250
100
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
10
TSU:STO
Stop condition setup time
4000
600
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
11
TSU:WP
WP setup time
4000
600
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
12
THD:WP
WP hold time
4700
600
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
13
TAA
Output valid from clock
(Note 2)
—
—
3500
900
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
14
TBUF
Bus free time: Time the bus
must be free before a new
transmission can start
1300
4700
—
—
ns
1.7V ≤ VCC < 2.5V
2.5V ≤ VCC ≤ 5.5V
16
TSP
Input filter spike suppression
(SDA and SCL pins)
—
50
ns
(Note 1 and Note 3)
17
TWC
Write cycle time (byte or
page)
—
5
ms
—
18
—
Endurance
1M
—
cycles
Start condition setup time
25°C, VCC = 5.5V, Block mode
(Note 4)
Note 1: Not 100% tested. CB = total capacitance of one bus line in pF.
2: 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.
3: 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.
4: 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.
© 2008 Microchip Technology Inc.
DS22105A-page 3
24AA02H/24LC02BH
FIGURE 1-1:
BUS TIMING DATA
5
SCL
7
SDA
In
3
4
D4
2
8
10
9
6
16
14
13
SDA
Out
WP
DS22105A-page 4
(protected)
(unprotected)
11
12
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
Name
PDIP
SOIC
TSSOP
DFN
MSOP
SOT23
SC-70
Description
A0
1
1
1
1
1
—
—
Not Connected
A1
2
2
2
2
2
—
—
Not Connected
A2
3
3
3
3
3
—
—
Not Connected
VSS
4
4
4
4
4
2
2
Ground
SDA
5
5
5
5
5
3
3
Serial Address/Data I/O
SCL
6
6
6
6
6
1
1
Serial Clock
WP
7
7
7
7
7
5
5
Write-Protect Input
VCC
8
8
8
8
8
4
4
+1.7V to 5.5V Power
Supply
2.1
A0, A1, A2
The A0, A1 and A2 pins are not used by the 24XX02H.
They may be left floating or tied to either VSS or VCC.
2.2
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).
2.4
Write-Protect (WP)
The WP pin must be connected to either VSS or VCC.
If tied to VSS, normal memory operation is enabled
(read/write the entire memory 00-FF).
If tied to VCC, write operations are inhibited. Half of the
memory will be write-protected (80h-FFh). Read
operations are not affected.
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.
2.3
Serial Clock (SCL)
The SCL input is used to synchronize the data transfer
to and from the device.
© 2008 Microchip Technology Inc.
DS22105A-page 5
24AA02H/24LC02BH
3.0
FUNCTIONAL DESCRIPTION
The 24XX02H 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 24XX02H
works as slave. Both master and slave can operate as
transmitter or receiver, but the master device
determines which mode is activated.
4.0
BUS CHARACTERISTICS
The following bus protocol has been defined:
• Data transfer may be initiated only when the bus
is not busy.
• During data transfer, the data line must remain
stable whenever the clock line is high. Changes in
the data line while the clock line is high will be
interpreted as a Start or Stop condition.
Accordingly, the following bus conditions have been
defined (Figure 4-1).
4.1
Start Data Transfer (B)
A high-to-low transition of the SDA line while the clock
(SCL) is high determines a Start condition. All
commands must be preceded by a Start condition.
4.3
Stop Data Transfer (C)
A low-to-high transition of the SDA line while the clock
(SCL) is high determines a Stop condition. All
operations must be ended with a Stop condition.
FIGURE 4-1:
(A)
Data Valid (D)
The state of the data line represents valid data when,
after a Start condition, the data line is stable for the
duration of the high period of the clock signal.
The data on the line must be changed during the low
period of the clock signal. There is one clock pulse per
bit of data.
Each data transfer is initiated with a Start condition and
terminated with a Stop condition. The number of data
bytes transferred between Start and Stop conditions is
determined by the master device and is, theoretically,
unlimited (although only the last sixteen will be stored
when doing a write operation). When an overwrite does
occur, it will replace data in a first-in first-out (FIFO)
fashion.
4.5
Acknowledge
Each receiving device, when addressed, is obliged to
generate an acknowledge after the reception of each
byte. The master device must generate an extra clock
pulse which is associated with this Acknowledge bit.
Note:
Bus Not Busy (A)
Both data and clock lines remain high.
4.2
4.4
The 24XX02H does not generate any
Acknowledge
bits
if
an
internal
programming cycle is in progress.
The device that acknowledges has to pull down the
SDA line during the acknowledge clock pulse in such a
way that the SDA line is stable low during the high
period of the acknowledge related clock pulse. Of
course, setup and hold times must be taken into
account. During reads, a master must signal an end of
data to the slave by not generating an Acknowledge bit
on the last byte that has been clocked out of the slave.
In this case, the slave (24XX02H) will leave the data
line high to enable the master to generate the Stop
condition.
DATA TRANSFER SEQUENCE ON THE SERIAL BUS
(B)
(D)
Start
Condition
Address or
Acknowledge
Valid
(D)
(C)
(A)
SCL
SDA
DS22105A-page 6
Data
Allowed
to Change
Stop
Condition
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
4.6
FIGURE 4-2:
Device Addressing
A control byte is the first byte received following the
Start condition from the master device. The control byte
consists of a four-bit control code. For the 24XX02H,
this is set as ‘1010’ binary for read and write operations. The next three bits of the control byte are “don’t
cares” for the 24XX02H.
The last bit of the control byte defines the operation to
be performed. When set to ‘1’, a read operation is
selected. When set to ‘0’, a write operation is selected.
Following the Start condition, the 24XX02H monitors
the SDA bus, checking the device type identifier being
transmitted and, upon a ‘1010’ code, the slave device
outputs an Acknowledge signal on the SDA line.
Depending on the state of the R/W bit, the 24XX02H
will select a read or write operation.
Operation
Control
Code
Block Select
R/W
Read
1010
Block Address
1
Write
1010
Block Address
0
© 2008 Microchip Technology Inc.
CONTROL BYTE
ALLOCATION
Read/Write Bit
Block
Select
Bits
Control Code
S
1
0
1
0
x
x
x
R/W ACK
Slave Address
Start Bit
Acknowledge Bit
x = “don’t care”
DS22105A-page 7
24AA02H/24LC02BH
5.0
WRITE OPERATION
5.1
Byte Write
5.2
The write-control byte, word address and the first data
byte are transmitted to the 24XX02H in the same way
as in a byte write. However, instead of generating a Stop
condition, the master transmits up to 8 data bytes to the
24XX02H, which are temporarily stored in the on-chip
page buffer and will be written into memory once the
master has transmitted a Stop condition. Upon receipt
of each word, the four lower-order Address Pointer bits
are internally incremented by ‘1’. The higher-order 7
bits of the word address remain constant. If the master
should transmit more than 8 words prior to generating
the Stop condition, the address counter will roll over and
the previously received data will be overwritten. As with
the byte write operation, once the Stop condition is
received an internal write cycle will begin (Figure 5-2).
Following the Start condition from the master, the
device code (4 bits), the block address (3 bits, “don’t
cares”) and the R/W bit which is a logic low, is placed
onto the bus by the master transmitter. This indicates to
the addressed slave receiver that a byte with a word
address will follow once it has generated an Acknowledge bit during the ninth clock cycle. Therefore, the
next byte transmitted by the master is the word address
and will be written into the Address Pointer of the
24XX02H. After receiving another Acknowledge signal
from the 24XX02H, the master device will transmit the
data word to be written into the addressed memory
location. The 24XX02H acknowledges again and the
master generates a Stop condition. This initiates the
internal write cycle and, during this time, the 24XX02H
will not generate Acknowledge signals (Figure 5-1).
FIGURE 5-1:
S
T
A
R
T
SDA Line
S
Control
Byte
1
0
1
0
x
Bus Activity
x x
S
T
A
R
T
SDA Line
S 10 10 xx x0
DS22105A-page 8
S
T
O
P
Data
0
P
A
C
K
A
C
K
A
C
K
PAGE WRITE
Bus Activity
Master
x = don’t care
Page write operations are limited to writing
bytes within a single physical page
regardless of the number of bytes
actually being written. Physical page
boundaries start at addresses that are
integer multiples of the page buffer size (or
‘page size’) and end at addresses that are
integer multiples of [page size – 1]. If a
Page Write command attempts to write
across a physical page boundary, the
result is that the data wraps around to the
beginning of the current page (overwriting
data previously stored there), instead of
being written to the next page, as might be
expected. It is therefore necessary for the
application software to prevent page write
operations that would attempt to cross a
page boundary.
Word
Address
Block
Select
Bits
x = “don’t care”
Bus Activity
Note:
BYTE WRITE
Bus Activity
Master
FIGURE 5-2:
Page Write
Control
Byte
Block
Select
Bits
Word
Address (n)
Data (n)
S
T
O
P
Data (n + 7)
Data (n + 1)
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
6.0
ACKNOWLEDGE POLLING
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (this feature can be used to maximize bus
throughput). Once the Stop condition for a Write
command has been issued from the master, the device
initiates the internally-timed write cycle and ACK polling
can then be initiated immediately. This involves the
master sending a Start condition followed by the control
byte for a Write command (R/W = 0). If the device is still
busy with the write cycle, no ACK will be returned. If the
cycle is complete, the device will return the ACK and
the master can then proceed with the next Read or
Write command. See Figure 6-1 for a flow diagram of
this operation.
FIGURE 6-1:
7.0
WRITE PROTECTION
The WP pin allows the user to write-protect half of the
array (80h-FFh) when the pin is tied to VCC. If tied to
VSS, the write protection is disabled.
ACKNOWLEDGE
POLLING FLOW
Send
Write Command
Send Stop
Condition to
Initiate Write Cycle
Send Start
Send Control Byte
with R/W = 0
Did Device
Acknowledge
(ACK = 0)?
No
Yes
Next
Operation
© 2008 Microchip Technology Inc.
DS22105A-page 9
24AA02H/24LC02BH
8.0
READ OPERATION
8.3
Sequential Read
Read operations are initiated in the same way as write
operations, with the exception that the R/W bit of the
slave address is set to ‘1’. There are three basic types
of read operations: current address read, random read
and sequential read.
Sequential reads are initiated in the same way as a
random read, except that once the 24XX02H transmits
the first data byte, the master issues an acknowledge
as opposed to a Stop condition in a random read. This
directs the 24XX02H to transmit the next sequentiallyaddressed 8-bit word (Figure 8-3).
8.1
To provide sequential reads, the 24XX02H contains an
internal Address Pointer that is incremented by one
upon completion of each operation. This Address
Pointer allows the entire memory contents to be serially
read during one operation.
Current Address Read
The 24XX02H contains an address counter that maintains the address of the last word accessed, internally
incremented by ‘1’. Therefore, if the previous access
(either a read or write operation) was to address n, the
next current address read operation would access data
from address n + 1. Upon receipt of the slave address
with R/W bit set to ‘1’, the 24XX02H issues an acknowledge and transmits the 8-bit data word. The master will
not acknowledge the transfer, but does generate a Stop
condition, and the 24XX02H discontinues transmission
(Figure 8-1).
8.2
8.4
Noise Protection
The 24XX02H employs a VCC threshold detector circuit
which disables the internal erase/write logic if the VCC
is below 1.5V at nominal conditions.
The SCL and SDA inputs have Schmitt Trigger and
filter circuits which suppress noise spikes to assure
proper device operation, even on a noisy bus.
Random Read
Random read operations allow the master to access
any memory location in a random manner. To perform
this type of read operation, the word address must first
be set. This is accomplished by sending the word
address to the 24XX02H as part of a write operation.
Once the word address is sent, the master generates
a Start condition following the acknowledge. This
terminates the write operation, but not before the
internal Address Pointer is set. The master then
issues the control byte again, but with the R/W bit set
to a ‘1’. The 24XX02H will then issue an acknowledge
and transmit the 8-bit data word. The master will not
acknowledge the transfer, but does generate a Stop
condition, and the 24XX02H will discontinue
transmission (Figure 8-2).
FIGURE 8-1:
CURRENT ADDRESS READ
Bus Activity
Master
S
T
A
R
T
SDA Line
S 1
Bus Activity
x = “don’t care”
DS22105A-page 10
Control
Byte
0
1
0
x x
S
T
O
P
Data (n)
x
Block
Select
Bits
1
P
A
C
K
N
o
A
C
K
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
FIGURE 8-2:
RANDOM READ
Bus Activity
Master
S
T
A
R
T
S
T
A
R
T
Word
Address (n)
Control
Byte
S 10 10x xx0
SDA Line
Block
Select
Bits
Bus Activity
Control
Byte
S 1010x xx1
A
C
K
A
C
K
Block
Select
Bits
P
A
C
K
Bus Activity
Master
SDA Line
Bus Activity
N
o
A
C
K
x = “don’t care”
FIGURE 8-3:
S
T
O
P
Data (n)
SEQUENTIAL READ
Control
Byte
Data (n)
Data (n + 1)
Data (n + 2)
S
T
O
P
Data (n + x)
P
1
A
C
K
A
C
K
A
C
K
A
C
K
N
o
A
C
K
© 2008 Microchip Technology Inc.
DS22105A-page 11
24AA02H/24LC02BH
9.0
PACKAGING INFORMATION
9.1
Package Marking Information
8-Lead PDIP (300 mil)
XXXXXXXX
T/XXXNNN
YYWW
8-Lead SOIC (3.90 mm)
XXXXXXXT
XXXXYYWW
NNN
8-Lead TSSOP
Example:
24LC02BHI
SN e3 0527
13F
Example:
4L2H
TYWW
I527
NNN
13F
XXXXXT
YWWNNN
5-Lead SOT-23
DS22105A-page 12
24LC02BH
I/P e3 13F
0527
XXXX
8-Lead MSOP
XXNN
Example:
Example:
4L2BHI
52713F
Example:
2Q3F
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
Example:
5-Lead SC-70
XXNN
C43F
8-Lead 2x3 TDFN
Example:
XXX
YWW
NN
AD4
527
13
1st Line Marking Codes
Part Number
SOT-23
TSSOP
24AA02
24LC02B
Note:
TDFN
SC-70
MSOP
I Temp.
E Temp.
I Temp.
E Temp.
I Temp.
E Temp.
4A2H
4A02HT
2MNN
—
AD1
—
C5NN
—
4L2H
4L2BHT
2QNN
2RNN
AD4
AD5
C4NN
C6NN
T = Temperature grade (I, E)
NN = Alphanumeric traceability code
Legend: XX...X
T
Y
YY
WW
NNN
e3
Note:
Note:
Note:
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.
© 2008 Microchip Technology Inc.
DS22105A-page 13
24AA02H/24LC02BH
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© 2008 Microchip Technology Inc.
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DS22105A-page 15
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© 2008 Microchip Technology Inc.
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DS22105A-page 17
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© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
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DS22105A-page 19
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© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
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© 2008 Microchip Technology Inc.
DS22105A-page 21
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© 2008 Microchip Technology Inc.
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© 2008 Microchip Technology Inc.
DS22105A-page 23
24AA02H/24LC02BH
APPENDIX A:
REVISION HISTORY
Revision A
Original release of this document.
DS22105A-page 24
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
THE MICROCHIP WEB SITE
CUSTOMER SUPPORT
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 the following
information:
Users of Microchip products can receive assistance
through several channels:
• Product Support – Data sheets and errata,
application notes and sample programs, design
resources, user’s guides and hardware support
documents, latest software releases and archived
software
• General Technical Support – Frequently Asked
Questions (FAQ), technical support requests,
online discussion groups, Microchip consultant
program member listing
• Business of Microchip – Product selector and
ordering guides, latest Microchip press releases,
listing of seminars and events, listings of
Microchip sales offices, distributors and factory
representatives
•
•
•
•
•
Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
Technical Support
Development Systems Information Line
Customers
should
contact
their
distributor,
representative or field application engineer (FAE) for
support. Local sales offices are also available to help
customers. A listing of sales offices and locations is
included in the back of this document.
Technical support is available through the web site
at: http://support.microchip.com
CUSTOMER CHANGE NOTIFICATION
SERVICE
Microchip’s customer notification service helps keep
customers current on Microchip products. Subscribers
will receive e-mail notification whenever there are
changes, updates, revisions or errata related to a
specified product family or development tool of interest.
To register, access the Microchip web site at
www.microchip.com, click on Customer Change
Notification and follow the registration instructions.
© 2008 Microchip Technology Inc.
DS22105A-page 25
24AA02H/24LC02BH
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.
To:
Technical Publications Manager
RE:
Reader Response
Total Pages Sent ________
From: Name
Company
Address
City / State / ZIP / Country
Telephone: (_______) _________ - _________
FAX: (______) _________ - _________
Application (optional):
Would you like a reply?
Y
Device: 24AA02H/24LC02BH
N
Literature Number: DS22105A
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?
DS22105A-page 26
© 2008 Microchip Technology Inc.
24AA02H/24LC02BH
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:
24AA02H
=
24AA02HT =
24LC02BH =
24LC02BH =
Temperature
Range:
I
E
Package:
P
SN
ST
1.7V, 2 Kbit I2C Serial EEPROM
1.7V, 2 Kbit I2C Serial EEPROM
(Tape and Reel)
2.5V, 2 Kbit I2C Serial EEPROM
2.5V, 2 Kbit I2C Serial EEPROM
(Tape and Reel)
= -40°C to +85°C
= -40°C to +125°C
c)
d)
e)
f)
24AA02H-I/P: Industrial Temperature,
1.7V, PDIP package
24AA02H-I/SN: Industrial Temperature,
1.7V, SOIC package
24AA02HT-I/OT: Industrial Temperature,
1.7V, SOT-23 package, tape and reel
24LC02BH-I/P: Industrial Temperature,
2.5V, PDIP package
24LC02BH-E/SN: Extended Temperature, 2.5V, SOIC package
24LC02BHT-I/LT: Industrial Temperature, 2.5V, SC-70 package, tape and reel
= 8-Lead Plastic Dual In-Line (300 mil body)
= 8-Lead Plastic Small Outline (3.90 mm body)
= 8-Lead Plastic Thin Shrink Small Outline
(4.4 mm)
MS
= 8-Lead Plastic Micro Small Outline
MNY(1) = 8-Lead Plastic Dual Flat, No Lead
OT
= 5-Lead Plastic Small Outline Transistor
(Tape and Reel only)
LT
= 5-Lead Plastic Small Outline Transistor
(Tape and Reel only)
Note 1: ’Y’ indicates a Nickel Palladium Gold (NiPdAu) finish.
© 2008 Microchip Technology Inc.
DS22105A-page27
24AA02H/24LC02BH
NOTES:
DS22105A-page 28
© 2008 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
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
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.
© 2008, 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.
© 2008 Microchip Technology Inc.
DS22105A-page 29
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://support.microchip.com
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-4182-8400
Fax: 91-80-4182-8422
India - New Delhi
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
01/02/08
DS22105A-page 30
© 2008 Microchip Technology Inc.