DataSheet39.com

24LC02B PDF Datasheet - Microchip

Part Number 24LC02B
Description EEPROM
Manufacturers Microchip 
Logo Microchip Logo 
Preview
Preview ( 30 pages )
		
24LC02B datasheet, circuit
24AA02/24LC02B
2K I2CSerial EEPROM
Device Selection Table
Part
Number
VCC
Range
Max. Clock
Frequency
24AA02
1.7-5.5 400 kHz(1)
24LC02B
2.5-5.5 400 kHz
Note 1: 100 kHz for VCC <2.5V.
Temp.
Ranges
I
I, E
Features:
• Single Supply with Operation down to 1.7V for
24AA02 Devices, 2.5V for 24LC02B 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
• 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,
DFN, 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
Description:
The Microchip Technology Inc. 24AA02/24LC02B
(24XX02*) 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 24XX02 also has a page write capability for up to
8 bytes of data. The 24XX02 is available in the
standard 8-pin PDIP, surface mount SOIC, TSSOP, 2x3
DFN, 2x3 TDFN and MSOP packages and is also avail-
able in the 5-lead SOT-23 and SC-70 packages.
Package Types
PDIP, MSOP
SOIC, TSSOP
A0 1
A1 2
A2 3
VSS 4
8 VCC A0
7 WP A1
6 SCL A2
5 SDA VSS
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
SOT-23/SC-70
DFN/TDFN
SCL 1
Vss
SDA
2
3
5 WP
4 Vcc
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
Note:
Pins A0, A1 and A2 are not used by the 24XX02. (No
internal connections).
Block Diagram
WP
HV
Generator
I/O
Control
Logic
I/O
SCL
SDA
VCC
VSS
Memory
Control
Logic
XDEC
EEPROM
Array
Page
Latches
YDEC
Sense Amp.
R/W Control
© 2009 Microchip Technology Inc.
DS21709J-page 1

1 page
line_dark_gray
24LC02B pdf, schematic
24AA02/24LC02B
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
Industrial (I):
TA = -40°C to +85°C, VCC = +1.7V to +5.5V
Automotive (E): TA = -40°C to +125°C, VCC = +2.5V to +5.5V
Param.
No.
Sym.
Characteristic
Min. Typ. Max. Units
Conditions
D1 VIH
WP, SCL and SDA pins
D2 —
High-level input voltage 0.7 VCC
D3 VIL
Low-level input voltage
— 0.3 VCC
D4 VHYS Hysteresis of Schmitt 0.05 VCC
Trigger inputs
D5 VOL
Low-level output voltage
— 0.40
D6 ILI
Input leakage current
— ±1
D7 ILO
Output leakage current
±1
D8 CIN,
Pin capacitance
COUT (all inputs/outputs)
— — 10
D9 ICC write Operating current
— 0.1
3
D10 ICC read
— 0.05
1
D11 ICCS
Standby current
— 0.01
——
1
5
Note: This parameter is periodically sampled and not 100% tested.
——
V—
V—
V (Note)
V IOL = 3.0 mA, VCC = 2.5V
μA VIN = VSS or VCC
μA VOUT = VSS or VCC
pF VCC = 5.0V (Note)
TA = 25°C, FCLK = 1 MHz
mA VCC = 5.5V, SCL = 400 kHz
mA —
μΑ Industrial
μΑ Automotive
SDA = SCL = VCC
WP = VSS
DS21709J-page 2
© 2009 Microchip Technology Inc.

2 Page
line_dark_gray
24LC02B equivalent
24AA02/24LC02B
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1: PIN FUNCTION TABLE
Name
A0
A1
A2
VSS
SDA
SCL
WP
VCC
PDIP
1
2
3
4
5
6
7
8
SOIC
1
2
3
4
5
6
7
8
TSSOP
1
2
3
4
5
6
7
8
DFN
1
2
3
4
5
6
7
8
TDFN
1
2
3
4
5
6
7
8
MSOP
1
2
3
4
5
6
7
8
SOT23
2
3
1
5
4
SC-70
2
3
1
5
4
Description
Not Connected
Not Connected
Not Connected
Ground
Serial Address/Data I/O
Serial Clock
Write-Protect Input
+1.7V to 5.5V Power
Supply
2.1 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 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.
2.2 Serial Clock (SCL)
The SCL input is used to synchronize the data transfer
to and from the device.
2.3 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-FF).
If tied to VCC, write operations are inhibited. The entire
memory will be write-protected. Read operations are
not affected.
2.4 A0, A1, A2
These A0, A1 and A2 pins are not used by the 24XX02.
They may be left floating or tied to either VSS or VCC.
© 2009 Microchip Technology Inc.
DS21709J-page 5

5 Page
line_blue
24LC02B diode, scr
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 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 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)?
Yes
Next
Operation
No
24AA02/24LC02B
© 2009 Microchip Technology Inc.
DS21709J-page 9

9 Page
line_dark_gray
24LC02B transistor, igbt
24AA02/24LC02B
1RWH )RU WKH PRVW FXUUHQW SDFNDJH GUDZLQJV SOHDVH VHH WKH 0LFURFKLS 3DFNDJLQJ 6SHFLILFDWLRQ ORFDWHG DW
KWWS ZZZ PLFURFKLS FRP SDFNDJLQJ
© 2009 Microchip Technology Inc.
DS21709J-page 21

21 Page





Information Total 30 Pages
Download[ 24LC02B.PDF Datasheet ]

Share Link :

Electronic Components Distributor

SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Element14 Chip One Stop



Featured Datasheets

Part NumberDescriptionManufacturers
24LC02The function of this parts is a 1K/2K2-WireCMOSSerialEEPROM.HoltekSemiconductorInc
HoltekSemiconductorInc
24LC024The function of this parts is a 2K2.5VI2CSerialEEPROM.MicrochipTechnology
MicrochipTechnology
24LC025The function of this parts is a 2K2.5VI2CSerialEEPROM.MicrochipTechnology
MicrochipTechnology
24LC02BThe function of this parts is a EEPROM.Microchip
Microchip

Quick jump to:

24LC  1N4  2N2  2SA  2SC  74H  ADC  BC  BF  BU  CXA  HCF  IRF  KA  KIA  LA  LM  MC  NE  ST  STK  TDA  TL  UA 


DataSheet39.com is an Online Datasheet PDF Search Site.
It offers a large amount of data sheet, You can free PDF files download.
The updated every day, always provide the best quality and speed.



Index : 0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  SCR

www.DataSheet39.com    |   2018   |  Privacy Policy  |  Contact Us   |  New  |  Search