MICROCHIP 24AA16

24AA16/24LC16B
16K I2C™ Serial EEPROM
Device Selection Table
Description
Part
Number
Vcc
Range
Max Clock
Frequency
Temp
Ranges
24AA16
1.8-5.5
400 kHz(1)
I
24LC16B
2.5-5.5
400 kHz
I, E
Note 1:
100 kHz for VCC <2.5V
Features
Package Types
SOT-23-5
PDIP/SOIC/TSSOP/MSOP
1
A1
2
A2
3
Vss
4
Note:
8
Vcc
7
WP
6
SCL
5
SCL
1
Vss
2
SDA SDA
3
24XX16
A0
24XX16
• Single supply with operation down to 1.8V
• Low-power CMOS technology
- 1 mA active current typical
- 1 µA standby current (max.) (I-temp)
• Organized as 8 blocks of 256 bytes (8 x 256 x 8)
• 2-wire serial interface bus, I2C™ compatible
• Schmitt Trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (2.5V) and 400 kHz (≥2.5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page write buffer for up to 16 bytes
• 2 ms typical write cycle time for page write
• Hardware write-protect for entire memory
• Can be operated as a serial ROM
• Factory programming (QTP) available
• ESD protection > 4,000V
• 1,000,000 erase/write cycles
• Data retention > 200 years
• 8-lead PDIP, SOIC, TSSOP and MSOP packages
• 5-lead SOT-23 package
• Standard and Pb-free finishes available
• Available temperature ranges:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
The Microchip Technology Inc. 24AA16/24LC16B
(24XX16*) is a 16 Kbit Electrically Erasable PROM.
The device is organized as eight blocks of 256 x 8-bit
memory with a 2-wire serial interface. Low-voltage
design permits operation down to 1.8V with standby
and active currents of only 1 µA and 1 mA,
respectively. The 24XX16 also has a page write
capability for up to 16 bytes of data. The 24XX16 is
available in the standard 8-pin PDIP, surface mount
SOIC, TSSOP and MSOP packages and is also available in the 5-lead SOT-23 package.
5
WP
4
Vcc
Pins A0, A1 and A2 are not used by the
24LC16B. (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
Sense Amp.
R/W Control
*24XX16 is used in this document as a generic part number for the 24AA16/24LC16B devices.
 2003 Microchip Technology Inc.
DS21703D-page 1
24AA16/24LC16B
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 ................................................................................................-65°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.
VCC = +1.8V to +5.5V
Industrial (I):
TA = -40°C to +85°C
Automotive (E): TA = -40°C to +125°C
Characteristic
Min
Typ
Max
Units
WP, SCL and SDA pins
—
—
—
—
Conditions
—
D1
VIH
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
.05 VCC
—
—
V
(Note 1)
D5
VOL
Low-level output voltage
—
—
0.40
V
IOL = 3.0 mA, VCC = 2.5V
D6
ILI
Input leakage current
—
—
±1
µA
VIN =.1V to VCC
D7
ILO
Output leakage current
—
—
±1
µA
VOUT =.1V to VCC
D8
CIN,
COUT
Pin capacitance
(all inputs/outputs)
—
—
10
pF
VCC = 5.0V (Note 1)
TA = 25°C, FCLK = 1 MHz
D9
ICC write Operating current
—
—
3
mA
VCC = 5.5V, SCL = 400 kHz
D10
ICC read
—
0.01
1
mA
—
D11
ICCS
—
—
0.3
.01
1
5
µA
µA
Industrial
Automotive
SDA = SCL = VCC
WP = VSS
Note 1:
2:
Standby current
This parameter is periodically sampled and not 100% tested.
Typical measurements taken at room temperature.
DS21703D-page 2
 2003 Microchip Technology Inc.
24AA16/24LC16B
TABLE 1-2:
AC CHARACTERISTICS
VCC = +1.8V to +5.5V
Industrial (I):
TA = -40°C to +85°C
Automotive (E):
TA = -40°C to +125°C
AC CHARACTERISTICS
Param.
Symbol
No.
Characteristic
Min
Max
Units
Conditions
1
FCLK
Clock frequency
—
—
400
100
kHz
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC < 2.5V (24AA16)
2
THIGH
Clock high time
600
4000
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC < 2.5V (24AA16)
3
TLOW
Clock low time
1300
4700
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC < 2.5V (24AA16)
4
TR
SDA and SCL rise time
(Note 1)
—
—
300
1000
ns
2.5V ≤ VCC ≤ 5.5V (Note 1)
1.8V ≤ VCC < 2.5V (24AA16)
(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
1.8V ≤ VCC < 2.5V (24AA16)
7
TSU:STA
Start condition setup time
600
4700
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC < 2.5V (24AA16)
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
1.8V ≤ VCC < 2.5V (24AA16)
10
TSU:STO
Stop condition setup time
600
4000
—
—
ns
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC < 2.5V (24AA16)
11
TAA
Output valid from clock
(Note 2)
—
—
900
3500
ns
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC < 2.5V (24AA16)
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
1.8V ≤ VCC < 2.5V (24AA16)
13
TOF
Output fall time from VIH
minimum to VIL maximum
20+0.1CB
—
250
250
ns
2.5V ≤ VCC ≤ 5.5V
1.8V ≤ VCC <2.5V (24AA16)
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:
www.microchip.com.
 2003 Microchip Technology Inc.
DS21703D-page 3
24AA16/24LC16B
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
DS21703D-page 4
Stop
 2003 Microchip Technology Inc.
24AA16/24LC16B
2.0
FUNCTIONAL DESCRIPTION
The 24XX16 supports a bidirectional, 2-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 master device which generates the
serial clock (SCL), controls the bus access and generates the Start and Stop conditions, while the 24XX16
works as slave. Both master and slave can operate as
transmitter or receiver, but the master device determines which mode is activated.
3.0
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 3-1).
3.1
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.
3.3
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 3-1:
(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.
3.5
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.
3.2
3.4
The 24XX16 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 (24XX16) will leave the data line
high to enable the master to generate the Stop
condition.
DATA TRANSFER SEQUENCE ON THE SERIAL BUS
(B)
(D)
(D)
(C)
(A)
SCL
SDA
START
CONDITION
 2003 Microchip Technology Inc.
ADDRESS OR
DATA
ACKNOWLEDGE ALLOWED
VALID
TO CHANGE
STOP
CONDITION
DS21703D-page 5
24AA16/24LC16B
3.6
FIGURE 3-2:
Device Addressing
A control byte is the first byte received following the
Start condition from the master device (Figure 3-2).
The control byte consists of a four-bit control code.
For the 24XX16, this is set as ‘1010’ binary for read
and write operations. The next three bits of the control
byte are the block-select bits (B2, B1, B0). They are
used by the master device to select which of the eight
256 word-blocks of memory are to be accessed.
These bits are in effect the three Most Significant bits
of the word address. It should be noted that the
protocol limits the size of the memory to eight blocks
of 256 words, therefore the protocol can support only
one 24XX16 per system.
CONTROL BYTE
ALLOCATION
START
READ/WRITE
R/W A
SLAVE ADDRESS
1
0
1
0
B2
B1
B0
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 24XX16 monitors the
SDA bus checking the device type identifier being
transmitted and, upon receiving a ‘1010’ code, the
slave device outputs an Acknowledge signal on the
SDA line. Depending on the state of the R/W bit, the
24XX16 will select a read or write operation.
Operation
Control
Code
Block Select
R/W
Read
1010
Block Address
1
Write
1010
Block Address
0
DS21703D-page 6
 2003 Microchip Technology Inc.
24AA16/24LC16B
4.0
WRITE OPERATION
4.1
Byte Write
4.2
The write control byte, word address and the first data
byte are transmitted to the 24XX16 in the same way as
in a byte write. However, instead of generating a Stop
condition, the master transmits up to 16 data bytes to
the 24XX16, which are temporarily stored in the onchip 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 16
bytes 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 4-2).
Following the Start condition from the master, the
device code (4 bits), the block address (3 bits) 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 24XX16. After
receiving another Acknowledge signal from the
24XX16, the master device will transmit the data word
to be written into the addressed memory location. The
24XX16 acknowledges again and the master
generates a Stop condition. This initiates the internal
write cycle and, during this time, the 24XX16 will not
generate Acknowledge signals (Figure 4-1).
FIGURE 4-1:
Note:
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.
BYTE WRITE
BUS ACTIVITY
MASTER
S
T
A
R
T
SDA LINE
S
CONTROL
BYTE
WORD
ADDRESS
S
T
O
P
DATA
P
A
C
K
BUS ACTIVITY
FIGURE 4-2:
Page Write
A
C
K
A
C
K
PAGE WRITE
BUS ACTIVITY
MASTER
S
T
A
R
T
SDA LINE
S
WORD
ADDRESS (n)
CONTROL
BYTE
BUS ACTIVITY
 2003 Microchip Technology Inc.
DATA (n + 1)
DATA (n)
S
T
O
P
DATA (n + 15)
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
DS21703D-page 7
24AA16/24LC16B
5.0
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 5-1 for a flow diagram of
this operation.
FIGURE 5-1:
6.0
WRITE-PROTECTION
The 24XX16 can be used as a serial ROM when the
WP pin is connected to VCC. Programming will be
inhibited and the entire memory will be write-protected.
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
DS21703D-page 8
 2003 Microchip Technology Inc.
24AA16/24LC16B
7.0
READ OPERATION
7.3
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 24XX16 transmits
the first data byte, the master issues an acknowledge
as opposed to a Stop condition in a random read. This
directs the 24XX16 to transmit the next sequentiallyaddressed 8-bit word (Figure 7-3).
7.1
To provide sequential reads, the 24XX16 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 24XX16 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 24XX16 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 24XX16 discontinues transmission
(Figure 7-1).
7.2
Random Read
7.4
Noise Protection
The 24XX16 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 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 24XX16 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
24XX16 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
24XX16 will discontinue transmission (Figure 7-2).
FIGURE 7-1:
CURRENT ADDRESS READ
BUS ACTIVITY
MASTER
S
T
A
R
T
SDA LINE
S
BUS ACTIVITY
 2003 Microchip Technology Inc.
CONTROL
BYTE
S
T
O
P
DATA (n)
P
A
C
K
N
O
A
C
K
DS21703D-page 9
24AA16/24LC16B
FIGURE 7-2:
RANDOM READ
S
BUS ACTIVITY T
A
MASTER
R
T
S
SDA LINE
CONTROL
BYTE
S
T
O
P
P
DATA (n)
S
A
C
K
A
C
K
BUS ACTIVITY
FIGURE 7-3:
S
T
A
R
T
WORD
ADDRESS (n)
CONTROL
BYTE
A
C
K
N
O
A
C
K
SEQUENTIAL READ
BUS ACTIVITY CONTROL
MASTER
BYTE
DATA (n)
DATA (n + 1)
DATA (n + 2)
S
T
O
P
DATA (n + X)
P
SDA LINE
BUS ACTIVITY
DS21703D-page 10
A
C
K
A
C
K
A
C
K
A
C
K
N
O
A
C
K
 2003 Microchip Technology Inc.
24AA16/24LC16B
8.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 8-1.
TABLE 8-1:
PIN FUNCTION TABLE
Name
PDIP
SOIC
TSSOP
MSOP
SOT-23
A0
1
1
1
1
—
Not Connected
A1
2
2
2
2
—
Not Connected
8.1
A2
3
3
3
3
—
Not Connected
VSS
4
4
4
4
2
Ground
SDA
5
5
5
5
3
Serial Address/Data I/O
SCL
6
6
6
6
1
Serial Clock
WP
7
7
7
7
5
Write-Protect Input
VCC
8
8
8
8
4
+1.8V 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.
8.2
Description
Serial Clock (SCL)
The SCL input is used to synchronize the data transfer
to and from the device.
 2003 Microchip Technology Inc.
8.3
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 00-07FFH).
If tied to VCC, write operations are inhibited. The entire
memory will be write-protected. Read operations are
not affected.
This feature allows the user to use the 24XX16 as a
serial ROM when WP is enabled (tied to VCC).
8.4
A0, A1, A2
The A0, A1 and A2 pins are not used by the 24XX16.
They may be left floating or tied to either VSS or VCC.
DS21703D-page 11
24AA16/24LC16B
9.0
PACKAGING INFORMATION
9.1
Package Marking Information
8-Lead PDIP (300 mil)
XXXXXXXX
T/XXXNNN
YYWW
24LC16B
I/P13F
0327
8-Lead SOIC (150 mil)
XXXXXXXX
T/XXYYWW
NNN
8-Lead TSSOP
Example:
Example:
24LC16B
I/SNYYWW
13F
Example:
XXXX
4L16
TYWW
I327
NNN
13F
8-Lead MSOP
Example:
XXXXXT
4L16BI
YWWNNN
32713F
5-Lead SOT-23
Example:
B53F
XXNN
STD
Pb-free
24AA16
4A16
G4A6
24LC16B
4L16
G4L6
Note:
XX...X
T
YY
WW
NNN
SOT-23
Marking Codes
Device
STD
Pb-free
24AA16
B5
B5
24LC16B-I
M5
M5
24LC16B-E
N5
N5
Note:
Legend:
TSSOP/MSOP
Marking Codes
Device
Pb-free part number using “G”
suffix is marked on carton
Customer specific information*
Temperature grade (I, E)
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
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 QTP marking consists of Microchip part number, year code, week code, and traceability code.
DS21703D-page 12
 2003 Microchip Technology Inc.
24AA16/24LC16B
8-Lead Plastic Dual In-line (P) – 300 mil (PDIP)
E1
D
2
n
1
α
E
A2
A
L
c
A1
β
B1
p
eB
B
Units
Dimension Limits
n
p
Number of Pins
Pitch
Top to Seating Plane
Molded Package Thickness
Base to Seating Plane
Shoulder to Shoulder Width
Molded Package Width
Overall Length
Tip to Seating Plane
Lead Thickness
Upper Lead Width
Lower Lead Width
Overall Row Spacing
Mold Draft Angle Top
Mold Draft Angle Bottom
* Controlling Parameter
§ Significant Characteristic
A
A2
A1
E
E1
D
L
c
§
B1
B
eB
α
β
MIN
.140
.115
.015
.300
.240
.360
.125
.008
.045
.014
.310
5
5
INCHES*
NOM
MAX
8
.100
.155
.130
.170
.145
.313
.250
.373
.130
.012
.058
.018
.370
10
10
.325
.260
.385
.135
.015
.070
.022
.430
15
15
MILLIMETERS
NOM
8
2.54
3.56
3.94
2.92
3.30
0.38
7.62
7.94
6.10
6.35
9.14
9.46
3.18
3.30
0.20
0.29
1.14
1.46
0.36
0.46
7.87
9.40
5
10
5
10
MIN
MAX
4.32
3.68
8.26
6.60
9.78
3.43
0.38
1.78
0.56
10.92
15
15
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.010” (0.254mm) per side.
JEDEC Equivalent: MS-001
Drawing No. C04-018
 2003 Microchip Technology Inc.
DS21703D-page 13
24AA16/24LC16B
8-Lead Plastic Small Outline (SN) – Narrow, 150 mil (SOIC)
E
E1
p
D
2
B
n
1
α
h
45°
c
A2
A
φ
β
L
Units
Dimension Limits
n
p
Number of Pins
Pitch
Overall Height
Molded Package Thickness
Standoff §
Overall Width
Molded Package Width
Overall Length
Chamfer Distance
Foot Length
Foot Angle
Lead Thickness
Lead Width
Mold Draft Angle Top
Mold Draft Angle Bottom
* Controlling Parameter
§ Significant Characteristic
A
A2
A1
E
E1
D
h
L
φ
c
B
α
β
MIN
.053
.052
.004
.228
.146
.189
.010
.019
0
.008
.013
0
0
A1
INCHES*
NOM
8
.050
.061
.056
.007
.237
.154
.193
.015
.025
4
.009
.017
12
12
MAX
.069
.061
.010
.244
.157
.197
.020
.030
8
.010
.020
15
15
MILLIMETERS
NOM
8
1.27
1.35
1.55
1.32
1.42
0.10
0.18
5.79
6.02
3.71
3.91
4.80
4.90
0.25
0.38
0.48
0.62
0
4
0.20
0.23
0.33
0.42
0
12
0
12
MIN
MAX
1.75
1.55
0.25
6.20
3.99
5.00
0.51
0.76
8
0.25
0.51
15
15
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.010” (0.254mm) per side.
JEDEC Equivalent: MS-012
Drawing No. C04-057
DS21703D-page 14
 2003 Microchip Technology Inc.
24AA16/24LC16B
8-Lead Plastic Thin Shrink Small Outline (ST) – 4.4 mm (TSSOP)
E
E1
p
D
2
1
n
B
α
A
c
φ
β
A1
A2
L
Units
Dimension Limits
n
p
Number of Pins
Pitch
Overall Height
Molded Package Thickness
Standoff §
Overall Width
Molded Package Width
Molded Package Length
Foot Length
Foot Angle
Lead Thickness
Lead Width
Mold Draft Angle Top
Mold Draft Angle Bottom
* Controlling Parameter
§ Significant Characteristic
A
A2
A1
E
E1
D
L
φ
c
B
α
β
MIN
INCHES
NOM
MAX
8
.026
.033
.002
.246
.169
.114
.020
0
.004
.007
0
0
.035
.004
.251
.173
.118
.024
4
.006
.010
5
5
.043
.037
.006
.256
.177
.122
.028
8
.008
.012
10
10
MILLIMETERS*
NOM
MAX
8
0.65
1.10
0.85
0.90
0.95
0.05
0.10
0.15
6.25
6.38
6.50
4.30
4.40
4.50
2.90
3.00
3.10
0.50
0.60
0.70
0
4
8
0.09
0.15
0.20
0.19
0.25
0.30
0
5
10
0
5
10
MIN
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed
.005” (0.127mm) per side.
JEDEC Equivalent: MO-153
Drawing No. C04-086
8-Lead Plastic Micro Small Outline Package
(MS) (MSOP)
 2003 Microchip Technology Inc.
DS21703D-page 15
24AA16/24LC16B
E
E1
p
D
2
B
n
1
α
A2
A
c
φ
A1
(F)
L
β
Units
Dimension Limits
n
p
MIN
INCHES
NOM
MAX
MILLIMETERS*
NOM
8
0.65 BSC
0.75
0.85
0.00
4.90 BSC
3.00 BSC
3.00 BSC
0.40
0.60
0.95 REF
0°
0.08
0.22
5°
5°
-
MIN
8
Number of Pins
Pitch
.026 BSC
A
.043
Overall Height
A2
Molded Package Thickness
.030
.033
.037
A1
.000
.006
Standoff
E
Overall Width
.193 TYP.
E1
.118 BSC
Molded Package Width
D
.118 BSC
Overall Length
L
.016
.024
.031
Foot Length
Footprint (Reference)
F
.037 REF
φ
0°
8°
Foot Angle
c
.003
.006
.009
Lead Thickness
B
.009
.012
.016
Lead Width
α
5°
15°
Mold Draft Angle Top
β
5°
15°
Mold Draft Angle Bottom
*Controlling Parameter
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not
exceed .010" (0.254mm) per side.
MAX
1.10
0.95
0.15
0.80
8°
0.23
0.40
15°
15°
JEDEC Equivalent: MO-187
Drawing No. C04-111
DS21703D-page 16
 2003 Microchip Technology Inc.
24AA16/24LC16B
APPENDIX A:
REVISION HISTORY
Revision D
Corrections to Section 1.0, Electrical Characteristics.
 2003 Microchip Technology Inc.
DS21703D-page 17
24AA16/24LC16B
NOTES:
DS21703D-page 18
 2003 Microchip Technology Inc.
24AA16/24LC16B
ON-LINE SUPPORT
Microchip provides on-line support on the Microchip
World Wide Web site.
The web site is used by Microchip as a means to make
files and information easily available to customers. To
view the site, the user must have access to the Internet
and a web browser, such as Netscape® or Microsoft®
Internet Explorer. Files are also available for FTP
download from our FTP site.
Connecting to the Microchip Internet
Web Site
SYSTEMS INFORMATION AND
UPGRADE HOT LINE
The Systems Information and Upgrade Line provides
system users a listing of the latest versions of all of
Microchip's development systems software products.
Plus, this line provides information on how customers
can receive the most current upgrade kits. The Hot Line
Numbers are:
1-800-755-2345 for U.S. and most of Canada, and
1-480-792-7302 for the rest of the world.
042003
The Microchip web site is available at the following
URL:
www.microchip.com
The file transfer site is available by using an FTP
service to connect to:
ftp://ftp.microchip.com
The web site and file transfer site provide a variety of
services. Users may download files for the latest
Development Tools, Data Sheets, Application Notes,
User's Guides, Articles and Sample Programs. A variety of Microchip specific business information is also
available, including listings of Microchip sales offices,
distributors and factory representatives. Other data
available for consideration is:
• Latest Microchip Press Releases
• Technical Support Section with Frequently Asked
Questions
• Design Tips
• Device Errata
• Job Postings
• Microchip Consultant Program Member Listing
• Links to other useful web sites related to
Microchip Products
• Conferences for products, Development Systems,
technical information and more
• Listing of seminars and events
 2003 Microchip Technology Inc.
DS21703D-page 19
24AA16/24LC16B
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?
Device: 24AA16/24LC16B
Y
N
Literature Number: DS21703D
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?
DS21703D-page 20
 2003 Microchip Technology Inc.
24AA16/24LC16B
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
X
Lead Finish
= 1.8V, 16 Kbit I2C Serial EEPROM
= 1.8V, 16 Kbit I2C Serial EEPROM
(Tape and Reel)
24LC16B: = 2.5V, 16 Kbit I2C Serial EEPROM
24LC16BT: = 2.5V, 16 Kbit I2C Serial EEPROM
(Tape and Reel)
24AA16:
24AA16T:
Temperature
Range:
I
E
= -40°C to +85°C
= -40°C to +125°C
Package:
P
SN
ST
MS
OT
=
=
=
=
=
Lead Finish
Blank =
G
=
Plastic DIP (300 mil body), 8-lead
Plastic SOIC (150 mil body), 8-lead
Plastic TSSOP (4.4 mm), 8-lead
Plastic Micro Small Outline (MSOP), 8-lead
SOT-23, 5-lead (Tape and Reel only)
Examples:
a)
24AA16-I/P: Industrial Temperature,1.8V,
PDIP package
b)
24AA16-I/SN: Industrial Temperature,1.8V,
SOIC package
c)
24AA16T-I/OT: Industrial Temperature,
1.8V, SOT-23 package, Tape and Reel
d)
24LC16B-I/P: Industrial Temperature, 2.5V,
PDIP package
e)
24LC16B-E/SN: Automotive Temp.,2.5V
SOIC package
f)
24LC16BT-I/OT: Industrial Temperature,
2.5V, SOT-23 package, Tape and Reel
g)
24LC16B-I/PG: Industrial Temperature,
2.5V, PDIP package, Pb-free
h)
24LC16BT-I/SNG: Industrial Temperature,
2.5V, SOIC package, Tape and Reel,
Pb-free
Standard 63% / 37% SnPb
Pb-free (Matte Tin - Pure Sn)
Sales and Support
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and
recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1.
2.
3.
Your local Microchip sales office
The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277
The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.
New Customer Notification System
Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
 2003 Microchip Technology Inc.
DS21703D-page 21
24AA16/24LC16B
NOTES:
DS21703D-page 22
 2003 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 intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with
express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, KEELOQ, MPLAB, PIC, PICmicro, PICSTART,
PRO MATE and PowerSmart are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
AmpLab, FilterLab, microID, MXDEV, MXLAB, PICMASTER,
SEEVAL and The Embedded Control Solutions Company are
registered trademarks of Microchip Technology Incorporated
in the U.S.A.
Application Maestro, dsPICDEM, dsPICDEM.net, ECAN,
ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, microPort,
Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM,
PICkit, PICDEM, PICDEM.net, PowerCal, PowerInfo,
PowerMate, PowerTool, rfLAB, rfPIC, Select Mode,
SmartSensor, SmartShunt, SmartTel and Total Endurance are
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
Serialized Quick Turn Programming (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.
© 2003, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
 2003 Microchip Technology Inc.
DS21703D-page 23
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
Korea
Corporate Office
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Technical Support: 480-792-7627
Web Address: http://www.microchip.com
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82-2-558-5934
Atlanta
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Tel: 81-45-471- 6166 Fax: 81-45-471-6122
DS21703D-page 24
Singapore
200 Middle Road
#07-02 Prime Centre
Singapore, 188980
Tel: 65-6334-8870 Fax: 65-6334-8850
Taiwan
Kaohsiung Branch
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Taiwan
Taiwan Branch
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EUROPE
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Regus Business Centre
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Italy
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Fax: 44-118-921-5820
07/28/03
 2003 Microchip Technology Inc.