......................................................................................................... -0.6V to V
CC
+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
Industrial (I):
Automotive (E)
Symbol
V
IH
V
IL
V
HYS
V
OL
I
LI
I
LO
C
IN
,
C
OUT
I
CC
Write
I
CC
Read
I
CCS
T
A
= -40°C to +85°C,
T
A
= -40°C to +125°C,
Max.
—
0.3 V
CC
—
0.4
±1
±1
10
2
1
1
Units
V
V
V
V
A
A
pF
mA
mA
A
(Note)
(Note)
V
CC
2.5V
(Note)
I
OL
= 3.0 mA, V
CC
= 4.5V
I
OL
= 2.1 mA, V
CC
= 2.5V
V
IN
= V
CC
or V
SS
V
OUT
= V
CC
or V
SS
V
CC
= 5.0V
(Note)
T
A
= 25°C, F
CLK
= 1 MHz
V
CC
= 5.5V, SCL = 400 kHz
V
CC
= 5.5V, SCL = 400 kHz
V
CC
= 5.5V, SDA = SCL = V
CC
V
CC
= 1.8V to 5.5V
V
CC
= 4.5V to 5.5V
Conditions
All Parameters apply across the
recommended operating ranges unless
otherwise noted
Parameter
SCL and SDA pins:
High-level input voltage
Low-level input voltage
Hysteresis of Schmitt Trigger
inputs
Low-level output voltage
Input leakage current
Output leakage current
Pin capacitance (all inputs/outputs)
Operating current
Standby current
Note:
Min.
0.7 V
CC
—
.05 V
CC
—
—
—
—
—
—
—
This parameter is periodically sampled and not 100% tested.
FIGURE 1-1:
BUS TIMING DATA
T
F
T
HIGH
T
R
SCL
T
SU
:
STA
T
LOW
T
HD
:
DAT
T
SU
:
DAT
T
SU
:
STO
SDA
IN
T
SP
T
HD
:
STA
T
AA
T
BUF
SDA
OUT
DS20001178J-page 2
1996-2018 Microchip Technology Inc.
24AA00/24LC00/24C00
TABLE 1-2:
AC CHARACTERISTICS
Industrial (I):
Automotive (E):
Symbol
F
CLK
Min
—
—
—
4000
4000
600
4700
4700
1300
—
—
—
—
4000
4000
600
4700
4700
600
0
250
250
100
4000
4000
600
—
—
—
4700
4700
1300
20+0.1
CB
—
—
1M
T
A
= -40°C to +85°C, V
CC
= 1.8V to 5.5V
T
A
= -40°C to +125°C, V
CC
= 4.5V to 5.5V
Max
100
100
400
—
—
—
—
—
—
1000
1000
300
300
—
—
—
—
—
—
—
—
—
—
—
—
—
3500
3500
900
—
—
—
250
50
4
—
Units
kHz
Conditions
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
(Note
1)
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
(Note
2)
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
4.5V
Vcc
5.5V (E Temp range)
1.8V
Vcc 4.5V
4.5V
Vcc
5.5V
(Note
1),
CB
100
pF
(Notes
1, 3)
All Parameters apply across all
recommended operating ranges
unless otherwise noted
Parameter
Clock frequency
Clock high time
T
HIGH
ns
Clock low time
T
LOW
ns
SDA and SCL rise time
(Note
1)
SDA and SCL fall time
Start condition hold time
T
R
ns
T
F
T
HD
:
STA
ns
ns
Start condition setup time
T
SU
:
STA
ns
Data input hold time
Data input setup time
T
HD
:
DAT
T
SU
:
DAT
ns
ns
Stop condition setup time
T
SU
:
STO
ns
Output valid from clock
(Note
2)
T
AA
ns
Bus free time: Time the bus must T
BUF
be free before a new transmis-
sion can start
Output fall time from V
IH
minimum to V
IL
maximum
Input filter spike suppression
(SDA and SCL pins)
Write cycle time
Endurance
Note 1:
2:
3:
4:
T
OF
T
SP
T
WC
ns
ns
ns
ms
cycles
(Note
4)
Not 100% tested. C
B
= 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 T
SP
and V
HYS
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 at www.microchip.com.
1996-2018 Microchip Technology Inc.
DS20001178J-page 3
24AA00/24LC00/24C00
2.0
PIN DESCRIPTIONS
PDIP
1, 2, 3, 7
4
5
6
8
SOIC
1, 2, 3, 7
4
5
6
8
TSSOP
1, 2, 3, 7
4
5
6
8
DFN
(1)
1, 2, 3, 7
4
5
6
8
TDFN
(1)
1, 2, 3, 7
4
5
6
8
SOT-23
4
2
3
1
5
Ground
Serial Address/Data I/O
Serial Clock
+1.8V to 5.5V Power Supply
Description
Not Connected
Pin Function Table
Name
NC
V
SS
SDA
SCL
V
CC
Note 1:
The exposed pad on the DFN/TDFN packages can be connected to V
SS
or left floating.
2.1
SDA Serial Data
This is a bidirectional pin used to transfer addresses
and data into and data out of the device. It is an open
drain terminal, therefore the SDA bus requires a pull-up
resistor to V
CC
(typical 10 k for 100 kHz, 2 k for
400 kHz).
For normal data transfer SDA is allowed to change only
during SCL low. Changes during SCL high are
reserved for indicating the Start and Stop conditions.
2.2
SCL Serial Clock
This input is used to synchronize the data transfer from
and to the device.
2.3
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.
DS20001178J-page 4
1996-2018 Microchip Technology Inc.
24AA00/24LC00/24C00
3.0
FUNCTIONAL DESCRIPTION
4.0
BUS CHARACTERISTICS
The 24XX00 supports a bidirectional 2-wire bus and
data transmission protocol. A device that sends data
onto the bus is defined as a transmitter, and a device
receiving data 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
24XX00 works as slave. Both master and slave can
operate as transmitter or receiver, but the master
device determines which mode is activated.
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
Bus Not Busy (A)
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.
4.4
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 bit of data per
clock pulse.
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 master device and is
I'm looking for the code of infrared optical mouse on Windows Mobile~ The platform we are currently debugging is 270 platform, and we may also adjust the infrared optical mouse IC: Avago A320 on HiSil...
In the Sitara SDK, there are Qt-related library files in the /ti-sdk-am335x-evm-05.05.00.00/linux-devkit/arm-arago-linux-gnueabi/usr/lib directory, as shown in the figure:These library files will be u...
Most companies in the world have experienced losses due to piracy. According to statistics, one out of every three versions of software in the world is copied, which causes a 50% drop in sales for reg...
In some application circuits that require special operations, read-only memory ROM is a key component. Designers usually use ROM to create various lookup tables to simplify circuit design and improve ...
Recently, a customer sent an oscilloscope for repair . The fault of the oscilloscope was that channel 3 was faulty. Let's take a look at the specific repair process below~1. Instrument model:Tektronix...
In the past, I used AT89S52 and AT89C55WD microcontrollers. Now I want to change to AT89S8253 for capacity and cost considerations. I tried burning the same program to drive the motor, and found that ...
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
The DisplayPort interface standard is approved by the Video Electronics Standards Association (VESA) to provide an open, scalable standard for the entire industry. The development of DisplayPort ca...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
