24AA08H/24LC08BH
8K I2C Serial EEPROM with Half-Array Write-Protect
Device Selection Table
Part Number
24AA08H
Max. Clock Frequency
1.7V-5.5V
24LC08BH
Note 1:
VCC Range
2.5V-5.5V
400 kHz
Temp. Ranges
(1)
400 kHz
Available Packages
I
MS, P, SN, OT, MNY, ST
I, E
MS, P, SN, OT, MNY, ST
100 kHz for VCC < 2.5V
Features
Description
• Single Supply with Operation Down to 1.7V for
24AA08H Devices, 2.5V for 24LC08BH Devices
• Low-Power CMOS Technology:
- Read current 1 mA, maximum
- Standby current 1 µA, maximum (I-temp.)
• Two-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: 5 ms, Maximum
• Self-Timed Erase/Write Cycle
• 16-Byte Page Write Buffer
• Hardware Write-Protect for Half-Array (200h-3FFh)
• ESD Protection >4,000V
• More than 1 Million Erase/Write Cycles
• Data Retention >200 Years
• Factory Programming Available
• RoHS Compliant
• Temperature Ranges:
- Industrial (I):
-40°C to +85°C
- Extended (E): -40°C to +125°C
• Automotive AEC-Q100 Qualified
The Microchip Technology Inc. 24XX08H(1) is an
8-Kbit Electrically Erasable PROM (EEPROM). The
device is organized as one block of 1024 x 8-bit
memory with a two-wire serial interface.
Its low-voltage design permits operation down to 1.7V,
with standby and active currents of only 1 µA and
1 mA, respectively. The 24XX08H also has a page
write capability for up to 16 bytes of data.
Note 1: 24XX08H is used in this document as a
generic
part
number
for
the
24AA08H/24LC08BH devices.
Package Types
A0 (1)
A1(1)
A2 (1)
VSS
7
2
3
4
(1)
1
8
VCC
(1)
2
7
WP
(1)
VCC A0
WP A1
6
SCL A2
3
6
SCL
5
SDA VSS
4
5
SDA
TDFN
(Top View)
SOT-23
(Top View)
SCL
1
VSS
2
SDA
3
Note 1:
2008-2021 Microchip Technology Inc.
8
1
Packages
• 8-Lead MSOP, 8-Lead PDIP, 8-Lead SOIC,
5-Lead SOT-23, 8-Lead TDFN and 8-Lead
TSSOP
SOIC, TSSOP
(Top View)
MSOP, PDIP
(Top View)
5
(1)
1
WP A0
(1)
2
A1
(1)
4
A2
VCC VSS
3
4
8 VCC
7 WP
6 SCL
5 SDA
Pins A0, A1 and A2 are not used by the
24XX08H (no internal connections).
DS20002084C-page 1
24AA08H/24LC08BH
Block Diagram
HV
Generator
WP
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
Page
Latches
I/O
SCL
YDEC
SDA
VCC
VSS
DS20002084C-page 2
Sense Amp.
R/W Control
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
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 +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.
Symbol
No.
Industrial (I):
Extended (E):
TA = -40°C to +85°C, VCC = +1.7V to +5.5V
TA = -40°C to +125°C, VCC = +1.7V to +5.5V
Characteristic
Min.
Typ.
Max.
Units
Conditions
D1
VIH
High-Level Input Voltage
0.7 VCC
—
—
V
D2
VIL
Low-Level Input Voltage
—
—
0.3 VCC
V
D3
VHYS
Hysteresis of Schmitt
Trigger Inputs
0.05 VCC
—
—
V
Note 1
D4
VOL
Low-Level Output
Voltage
—
—
0.40
V
IOL = 3.0 mA, VCC = 2.5V
D5
ILI
Input Leakage Current
—
—
±1
µA
VIN = VSS to VCC
D6
ILO
Output Leakage Current
—
—
±1
µA
VOUT = VSS to VCC
D7
CIN,
COUT
Pin Capacitance
(all inputs/outputs)
—
—
10
pF
VCC = 5.0V (Note 1)
TA = +25°C, FCLK = 1 MHz
D8
ICCWRITE
VCC = 5.5V, SCL = 400 kHz
D9
ICCREAD
D10
Note 1:
ICCS
Operating Current
—
0.1
3
mA
—
0.05
1
mA
—
0.01
1
µA
SDA = SCL = VCC
WP = VSS, I-Temp.
—
—
5
µA
SDA = SCL = VCC
WP = VSS, E-Temp.
Standby Current
This parameter is periodically sampled and not 100% tested.
2008-2021 Microchip Technology Inc.
DS20002084C-page 3
24AA08H/24LC08BH
TABLE 1-2:
AC CHARACTERISTICS
Industrial (I):
Extended (E):
AC CHARACTERISTICS
Param.
Symbol
No.
Characteristic
1
FCLK
Clock Frequency
2
THIGH
Clock High Time
3
TLOW
Clock Low Time
4
TR
SDA and SCL Rise Time
5
TF
SDA and SCL Fall Time
6
THD:STA Start Condition Hold Time
7
TSU:STA Start Condition Setup Time
8
THD:DAT Data Input Hold Time
9
TSU:DAT Data Input Setup Time
10
TSU:STO Stop Condition Setup Time
11
TSU:WP
WP Setup Time
12
THD:WP
WP Hold Time
Min.
TA = -40°C to +85°C, VCC = +1.7V to +5.5V
TA = -40°C to +125°C, VCC = +2.5V to +5.5V
Max. Units
—
400
kHz
2.5V VCC 5.5V
—
100
kHz
1.7V VCC 2.5V (24AA08H)
600
—
ns
2.5V VCC 5.5V
4000
—
ns
1.7V VCC 2.5V (24AA08H)
1300
—
ns
2.5V VCC 5.5V
4700
—
ns
1.7V VCC 2.5V (24AA08H)
—
300
ns
2.5V VCC 5.5V (Note 1)
—
1000
ns
1.7V VCC 2.5V (24AA08H) (Note 1)
—
300
ns
Note 1
600
—
ns
2.5V VCC 5.5V
4000
—
ns
1.7V VCC 2.5V (24AA08H)
600
—
ns
2.5V VCC 5.5V
4700
—
ns
1.7V VCC 2.5V (24AA08H)
0
—
ns
Note 2
100
—
ns
2.5V VCC 5.5V
250
—
ns
1.7V VCC 2.5V (24AA08H)
600
—
ns
2.5V VCC 5.5V
4000
—
ns
1.7V VCC 2.5V (24AA08H)
600
—
ns
2.5V VCC 5.5V
4000
—
ns
1.7V VCC < 2.5V (24AA08H)
1300
—
ns
2.5V VCC 5.5V
4700
—
ns
1.7V VCC < 2.5V (24AA08H)
—
900
ns
2.5V VCC 5.5V (Note 2)
—
3500
ns
1.7V VCC 2.5V (24AA08H) (Note 2)
1300
—
ns
2.5V VCC 5.5V
4700
—
ns
1.7V VCC 2.5V (24AA08H)
—
250
ns
2.5V VCC 5.5V
—
250
ns
1.7V VCC 2.5V (24AA08H)
Notes 1 and 3
13
TAA
Output Valid from Clock
14
TBUF
Bus Free Time: The time the
bus must be free before a new
transmission can start
15
TOF
Output Fall Time from VIH
Minimum to VIL Maximum
16
TSP
Input Filter Spike Suppression
(SDA and SCL pins)
—
50
ns
17
TWC
Write Cycle Time
(byte or page)
—
5
ms
1,000,000
—
18
Endurance
Note 1:
2:
3:
4:
Conditions
cycles +25°C, VCC = 5.5V, Page Mode (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.
DS20002084C-page 4
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
FIGURE 1-1:
BUS TIMING DATA
5
SCL
SDA
IN
7
3
4
D4
2
8
10
9
6
16
14
13
SDA
OUT
WP
2008-2021 Microchip Technology Inc.
(protected)
(unprotected)
11
12
DS20002084C-page 5
24AA08H/24LC08BH
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
Name
MSOP
PDIP
SOIC
SOT23
TDFN(1)
TSSOP
A0
1
1
1
—
1
1
Not Connected
A1
2
2
2
—
2
2
Not Connected
A2
3
3
3
—
3
3
Not Connected
Description
VSS
4
4
4
2
4
4
Ground
SDA
5
5
5
3
5
5
Serial Address/Data I/O
SCL
6
6
6
1
6
6
Serial Clock
WP
7
7
7
5
7
7
Write-Protect Input
8
8
8
4
8
8
Power Supply
VCC
Note 1:
2.1
The exposed pad on the TDFN package can be connected to VSS or left floating.
A0, A1, A2
2.3
Serial Clock (SCL)
The A0, A1 and A2 pins are not used by the 24XX08H.
They may be left floating or tied to either VSS or VCC.
The SCL input is used to synchronize the data transfer
to and from the device.
2.2
2.4
Serial Address/Data Input/Output
(SDA)
The SDA input is a bidirectional pin used to transfer
addresses and data into and out of the device. Since
it is an open-drain 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.
DS20002084C-page 6
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 000-03FF).
If tied to VCC, write operations are inhibited, half of the
memory will be write-protected (200h-3FFh). Read
operations are not affected.
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
3.0
FUNCTIONAL DESCRIPTION
The 24XX08H supports a bidirectional, two-wire bus
and data transmission protocol. A device that sends
data onto the bus is defined as a transmitter, while a
device receiving data is defined as a receiver. The bus
has to be controlled by a host device which generates
the Serial Clock (SCL), controls the bus access and
generates the Start and Stop conditions, while the
24XX08H works as client. Both host and client can
operate as transmitter or receiver, but the host 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
4.4
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 the
data bytes transferred between the Start and Stop
conditions is determined by the host 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) principle.
4.5
Both data and clock lines remain high.
4.2
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:
SCL
(A)
Acknowledge
Each receiving device, when addressed, is obliged to
generate an Acknowledge after the reception of each
byte. The host device must generate an extra clock
pulse which is associated with this Acknowledge bit.
Note:
Bus Not Busy (A)
Data Valid (D)
The 24XX08H 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.
Moreover, setup and hold times must be taken into
account. During reads, a host must signal an end of
data to the client by not generating an Acknowledge bit
on the last byte that has been clocked out of the client.
In this case, the client (24XX08H) will leave the data
line high to enable the host to generate the Stop
condition.
DATA TRANSFER SEQUENCE ON THE SERIAL BUS
(B)
(D)
Start
Condition
Address or
Acknowledge
Valid
(D)
(C)
(A)
SDA
2008-2021 Microchip Technology Inc.
Data
Allowed
to Change
Stop
Condition
DS20002084C-page 7
24AA08H/24LC08BH
5.0
DEVICE ADDRESSING
A control byte is the first byte received following the
Start condition from the host device. The control byte
consists of a four-bit control code. For the 24XX08H,
this is set as ‘1010’ binary for read and write operations. The next bit of the control byte is a “don’t care” for
the 24XX08H. The last two bits, B1 and B0, are used
by the host device to select which of the four 256-word
blocks of memory are to be accessed. These bits, in
effect, are the Most Significant bits of the word address.
The combination of the 4-bit control code and the next
three bits are called the client address.
The last bit of the control byte is the Read/Write (R/W)
bit and it 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 24XX08H monitors the SDA bus, checking the
device type identifier being transmitted. Upon receiving
a valid client address and the R/W bit, the client device
outputs an Acknowledge signal on the SDA line.
Depending on the state of the R/W bit, the 24XX08H
will select a read or write operation.
Operation
Control
Code
Block Select
R/W
Write
1010
Block Address
0
FIGURE 5-1:
CONTROL BYTE
ALLOCATION
Read/Write Bit
Block
Select
Bits
Control Code
S
1
0
1
0
x
B1 B0 R/W ACK
Client Address
Acknowledge Bit
Start Bit
x = “don’t care”
The next byte received defines the address of the first
data byte within the selected block (Figure 5-2). The
word address byte uses all eight bits.
Operation
Control
Code
Block Select
R/W
Read
1010
Block Address
1
FIGURE 5-2:
ADDRESS SEQUENCE BIT ASSIGNMENTS
Control Byte
1
0
1
Control
Code
0
x
B1 B0 R/W
Word Address Byte
A7
•
•
•
•
•
•
A0
Block
Select
Bits
x = “don’t care”
DS20002084C-page 8
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
6.0
WRITE OPERATION
6.1
Byte Write
The higher-order four bits of the word address remain
constant. If the host should transmit more than 16
words prior to generating the Stop condition, the
Address Pointer 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 6-2).
Following the Start condition from the host, the device
code (4 bits), the block address (3 bits) and the R/W bit,
which is a logic-low, are placed onto the bus by the host
transmitter. This indicates to the addressed client
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
host is the word address and will be written into the
Address Pointer of the 24XX08H. After receiving
another Acknowledge signal from the 24XX08H, the
host device will transmit the data word to be written into
the addressed memory location. The 24XX08H
acknowledges again and the host generates a Stop
condition. This initiates the internal write cycle and,
during this time, the 24XX08H will not generate
Acknowledge signals (Figure 6-1).
6.2
Note:
Page Write
The write control byte, word address and the first data
byte are transmitted to the 24XX08H in the same way
as in a byte write. However, instead of generating a
Stop condition, the host transmits up to 16 data bytes
to the 24XX08H, which are temporarily stored in the
on-chip page buffer and will be written into memory
once the host has transmitted a Stop condition. Upon
receipt of each word, the four lower-order Address
Pointer bits, which form the byte counter, are internally
incremented by one.
FIGURE 6-1:
Write Protection
The WP pin allows the user to write-protect half of the
array (200h-3FFh) when the pin is tied to VCC. If the pin
is tied to VSS, the write protection is disabled.
BYTE WRITE
Bus Activity
Host
S
T
A
R
T
SDA Line
S 1 0 1 0 X B1 B0 0
Control
Byte
Bus Activity
Word
Address
Block
Select
Bits
x = “don’t care”
FIGURE 6-2:
6.3
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.
S
T
O
P
Data
P
A
C
K
A
C
K
A
C
K
PAGE WRITE
Bus Activity
Host
S
T
A
R
T
SDA Line
S 1 0 1 0 X B1B0 0
Bus Activity
x = “don’t care”
Control
Byte
Block
Select
Bits
2008-2021 Microchip Technology Inc.
Word
Address (n)
Data (n)
Data (n + 1)
S
T
O
P
Data (n + 15)
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
DS20002084C-page 9
24AA08H/24LC08BH
7.0
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 host, the device
initiates the internally-timed write cycle and ACK polling
can then be initiated immediately. This involves the
host 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 host can then proceed with the next read or write
operation. See Figure 7-1 for a flow diagram of this
operation.
FIGURE 7-1:
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
DS20002084C-page 10
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
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
client 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 24XX08H transmits
the first data byte, the host issues an Acknowledge as
opposed to a Stop condition in a random read. This
directs the 24XX08H to transmit the next sequentially-addressed 8-bit word (Figure 8-3).
8.1
To provide sequential reads, the 24XX08H 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 24XX08H contains an Address Pointer that maintains the address of the last word accessed, internally
incremented by one. 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 client address
with R/W bit set to ‘1’, the 24XX08H issues an
Acknowledge and transmits the 8-bit data word. The
host will not acknowledge the transfer, but does generate a Stop condition and the 24XX08H discontinues
transmission (Figure 8-1).
8.2
8.4
Noise Protection
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 host 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 24XX08H as part of a write operation. Once the
word address is sent, the host generates a Start condition following the Acknowledge. This terminates the
write operation, but not before the internal Address
Pointer is set. The host then issues the control byte
again, but with the R/W bit set to a ‘1’. The 24XX08H
will then issue an Acknowledge and transmit the 8-bit
data word. The host will not acknowledge the transfer,
but does generate a Stop condition and the 24XX08H
will discontinue transmission (Figure 8-2).
FIGURE 8-1:
CURRENT ADDRESS READ
Bus Activity
Host
S
T
A
R
T
SDA Line
S 1 0 1 0 x B1 B0 1
Bus Activity
x = “don’t care”
2008-2021 Microchip Technology Inc.
Control
Byte
Block
Select
Bits
S
T
O
P
Data (n)
P
A
C
K
N
o
A
C
K
DS20002084C-page 11
24AA08H/24LC08BH
FIGURE 8-2:
RANDOM READ
Bus Activity
Host
SDA Line
S
T
Control
A
Byte
R
T
S 1 0 1 0 X B1B00
Control
Byte
A
Block C
Select K
Bits
A
C
K
x = “don’t care”
FIGURE 8-3:
Bus Activity
Host
SDA Line
Bus Activity
DS20002084C-page 12
S
T
O
P
P
Data (n)
S 1 0 1 0 X B1B0 1
A
Block C
Select K
Bits
Bus Activity
S
T
A
R
T
Word
Address (n)
N
o
A
C
K
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
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
9.0
PACKAGING INFORMATION
9.1
Package Marking Information
8-Lead MSOP
Example
XXXXXX
YWWNNN
4L8BHI
13213F
8-Lead PDIP (300 mil)
Example
XXXXXXXX
XXXXXNNN
YYWW
24LC08BH
I/P e3 13F
2132
8-Lead SOIC (3.90 mm)
Example
XXXXXXXX
XXXXYYWW
24LC08BHI
SN e3 2132
NNN
13F
5-Lead SOT-23
Example
XXNN
4QNN
8-Lead 2x3 TDFN
Example
XXX
YWW
NN
AS5
132
13
8-Lead TSSOP
Example
XXXX
4L8H
TYWW
I132
NNN
13F
2008-2021 Microchip Technology Inc.
DS20002084C-page 13
24AA08H/24LC08BH
Part Number
1st Line Marking Codes
SOT-23
MSOP
PDIP
SOIC
TSSOP
24AA08H
4A8HT(1)
24AA08H
24AA08HT(1)
4A8H
24LC08BH
4L8BHT(1)
24L08BH
24LC08BHT(1)
4L8H
Note 1:
2:
I-Temp.
TDFN
E-Temp.
I-Temp.
E-Temp.
4MNN(2)
—
AS1
—
4QNN(2)
4RNN(2)
AS4
AS5
T = Temperature grade (I, E)
NN = Alphanumeric traceability code
Legend: XX...X
T
Y
YY
WW
NNN
e3
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)
JEDEC® designator for Matte Tin (Sn)
* Standard OTP marking consists of Microchip part number, year code, week code and
traceability code.
Note:
For very small packages with no room for the JEDEC® designator
e3 , the marking will only appear on the outer carton or reel label.
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.
DS20002084C-page 14
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2008-2021 Microchip Technology Inc.
DS20002084C-page 15
24AA08H/24LC08BH
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
DS20002084C-page 16
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2008-2021 Microchip Technology Inc.
DS20002084C-page 17
24AA08H/24LC08BH
8-Lead Plastic Dual In-Line (P) - 300 mil Body [PDIP]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
A
N
B
E1
NOTE 1
1
2
TOP VIEW
E
C
A2
A
PLANE
L
c
A1
e
eB
8X b1
8X b
.010
C
SIDE VIEW
END VIEW
Microchip Technology Drawing No. C04-018-P Rev E Sheet 1 of 2
DS20002084C-page 18
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
8-Lead Plastic Dual In-Line (P) - 300 mil Body [PDIP]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
ALTERNATE LEAD DESIGN
(NOTE 5)
DATUM A
DATUM A
b
b
e
2
e
2
e
e
Units
Dimension Limits
Number of Pins
N
e
Pitch
Top to Seating Plane
A
Molded Package Thickness
A2
Base to Seating Plane
A1
Shoulder to Shoulder Width
E
Molded Package Width
E1
Overall Length
D
Tip to Seating Plane
L
c
Lead Thickness
b1
Upper Lead Width
b
Lower Lead Width
eB
Overall Row Spacing
§
MIN
.115
.015
.290
.240
.348
.115
.008
.040
.014
-
INCHES
NOM
8
.100 BSC
.130
.310
.250
.365
.130
.010
.060
.018
-
MAX
.210
.195
.325
.280
.400
.150
.015
.070
.022
.430
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. § Significant Characteristic
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or
protrusions shall not exceed .010" per side.
4. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
5. Lead design above seating plane may vary, based on assembly vendor.
Microchip Technology Drawing No. C04-018-P Rev E Sheet 2 of 2
2008-2021 Microchip Technology Inc.
DS20002084C-page 19
24AA08H/24LC08BH
8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2X
0.10 C A–B
D
A
D
NOTE 5
N
E
2
E1
2
E1
E
2X
0.10 C A–B
2X
0.10 C A–B
NOTE 1
2
1
e
B
NX b
0.25
C A–B D
NOTE 5
TOP VIEW
0.10 C
C
A A2
SEATING
PLANE
8X
A1
SIDE VIEW
0.10 C
h
R0.13
h
R0.13
H
SEE VIEW C
VIEW A–A
0.23
L
(L1)
VIEW C
Microchip Technology Drawing No. C04-057-SN Rev F Sheet 1 of 2
DS20002084C-page 20
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Units
Dimension Limits
Number of Pins
N
e
Pitch
Overall Height
A
Molded Package Thickness
A2
§
Standoff
A1
Overall Width
E
Molded Package Width
E1
Overall Length
D
Chamfer (Optional)
h
Foot Length
L
Footprint
L1
Foot Angle
c
Lead Thickness
b
Lead Width
Mold Draft Angle Top
Mold Draft Angle Bottom
MIN
1.25
0.10
0.25
0.40
0°
0.17
0.31
5°
5°
MILLIMETERS
NOM
8
1.27 BSC
6.00 BSC
3.90 BSC
4.90 BSC
1.04 REF
-
MAX
1.75
0.25
0.50
1.27
8°
0.25
0.51
15°
15°
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. § Significant Characteristic
3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or
protrusions shall not exceed 0.15mm per side.
4. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
5. Datums A & B to be determined at Datum H.
Microchip Technology Drawing No. C04-057-SN Rev F Sheet 2 of 2
2008-2021 Microchip Technology Inc.
DS20002084C-page 21
24AA08H/24LC08BH
8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
SILK SCREEN
C
Y1
X1
E
RECOMMENDED LAND PATTERN
Units
Dimension Limits
E
Contact Pitch
Contact Pad Spacing
C
Contact Pad Width (X8)
X1
Contact Pad Length (X8)
Y1
MIN
MILLIMETERS
NOM
1.27 BSC
5.40
MAX
0.60
1.55
Notes:
1. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Microchip Technology Drawing C04-2057-SN Rev F
DS20002084C-page 22
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
5-Lead Plastic Small Outline Transistor (OT) [SOT23]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
0.20 C 2X
D
e1
A
D
N
E/2
E1/2
E1
E
(DATUM D)
(DATUM A-B)
0.15 C D
2X
NOTE 1
1
2
e
B
NX b
0.20
C A-B D
TOP VIEW
A
A A2
0.20 C
SEATING PLANE
A
SEE SHEET 2
A1
C
SIDE VIEW
Microchip Technology Drawing C04-091-OT Rev F Sheet 1 of 2
2008-2021 Microchip Technology Inc.
DS20002084C-page 23
24AA08H/24LC08BH
5-Lead Plastic Small Outline Transistor (OT) [SOT23]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
c
T
L
L1
VIEW A-A
SHEET 1
Units
Dimension Limits
N
Number of Pins
e
Pitch
e1
Outside lead pitch
A
Overall Height
A2
Molded Package Thickness
Standoff
A1
Overall Width
E
Molded Package Width
E1
Overall Length
D
Foot Length
L
Footprint
L1
I
Foot Angle
c
Lead Thickness
b
Lead Width
MIN
0.90
0.89
-
0.30
0°
0.08
0.20
MILLIMETERS
NOM
5
0.95 BSC
1.90 BSC
2.80 BSC
1.60 BSC
2.90 BSC
0.60 REF
-
MAX
1.45
1.30
0.15
0.60
10°
0.26
0.51
Notes:
1. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or
protrusions shall not exceed 0.25mm per side.
2. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing C04-091-OT Rev F Sheet 2 of 2
DS20002084C-page 24
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
5-Lead Plastic Small Outline Transistor (OT) [SOT23]
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
X
SILK SCREEN
5
Y
Z
C
G
1
2
E
GX
RECOMMENDED LAND PATTERN
Units
Dimension Limits
E
Contact Pitch
C
Contact Pad Spacing
X
Contact Pad Width (X5)
Y
Contact Pad Length (X5)
Distance Between Pads
G
Distance Between Pads
GX
Z
Overall Width
MIN
MILLIMETERS
NOM
0.95 BSC
2.80
MAX
0.60
1.10
1.70
0.35
3.90
Notes:
1. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
Microchip Technology Drawing No. C04-2091-OT Rev F
2008-2021 Microchip Technology Inc.
DS20002084C-page 25
24AA08H/24LC08BH
8-Lead Plastic Dual Flat, No Lead Package (MN) – 2x3x0.8 mm Body [TDFN]
With 1.4x1.3 mm Exposed Pad (JEDEC Package type WDFN)
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
D
A
B
N
(DATUM A)
(DATUM B)
E
NOTE 1
2X
0.15 C
1
2
2X
0.15 C
TOP VIEW
0.10 C
C
(A3)
A
SEATING
PLANE
8X
0.08 C
A1
SIDE VIEW
0.10
C A B
D2
L
1
2
0.10
C A B
NOTE 1
E2
K
N
8X b
e
0.10
0.05
C A B
C
BOTTOM VIEW
Microchip Technology Drawing No. C04-129-MN Rev E Sheet 1 of 2
DS20002084C-page 26
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
8-Lead Plastic Dual Flat, No Lead Package (MN) – 2x3x0.8 mm Body [TDFN]
With 1.4x1.3 mm Exposed Pad (JEDEC Package type WDFN)
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Units
Dimension Limits
N
Number of Pins
e
Pitch
A
Overall Height
Standoff
A1
Contact Thickness
A3
D
Overall Length
Overall Width
E
Exposed Pad Length
D2
Exposed Pad Width
E2
b
Contact Width
Contact Length
L
Contact-to-Exposed Pad
K
MIN
0.70
0.00
1.35
1.25
0.20
0.25
0.20
MILLIMETERS
NOM
8
0.50 BSC
0.75
0.02
0.20 REF
2.00 BSC
3.00 BSC
1.40
1.30
0.25
0.30
-
MAX
0.80
0.05
1.45
1.35
0.30
0.45
-
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Package may have one or more exposed tie bars at ends.
3. Package is saw singulated
4. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
Microchip Technology Drawing No. C04-129-MN Rev E Sheet 2 of 2
2008-2021 Microchip Technology Inc.
DS20002084C-page 27
24AA08H/24LC08BH
8-Lead Plastic Dual Flat, No Lead Package (MN) – 2x3x0.8 mm Body [TDFN]
With 1.4x1.3 mm Exposed Pad (JEDEC Package type WDFN)
Note:
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
X2
EV
8
ØV
C
Y2
EV
Y1
1
2
SILK SCREEN
X1
E
RECOMMENDED LAND PATTERN
Units
Dimension Limits
Contact Pitch
E
Optional Center Pad Width
X2
Optional Center Pad Length
Y2
Contact Pad Spacing
C
Contact Pad Width (X8)
X1
Contact Pad Length (X8)
Y1
Thermal Via Diameter
V
Thermal Via Pitch
EV
MIN
MILLIMETERS
NOM
0.50 BSC
MAX
1.60
1.50
2.90
0.25
0.85
0.30
1.00
Notes:
1. Dimensioning and tolerancing per ASME Y14.5M
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
2. For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during
reflow process
Microchip Technology Drawing No. C04-129-MN Rev. B
DS20002084C-page 28
2008-2021 Microchip Technology Inc.
24AA08H/24LC08BH
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