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24AA01 PDF Datasheet - Microchip

Part Number 24AA01
Description EEPROM
Manufacturers Microchip 
Logo Microchip Logo 
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24AA01 datasheet, circuit
24AA01/24LC01B
1K I2CSerial EEPROM
Device Selection Table
Part
Number
VCC
Range
Max. Clock
Frequency
24AA01
1.7-5.5 400 kHz(1)
24LC01B
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
24AAXX Devices, 2.5V for 24LCXX 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 Compatibility
• Page Write Time 3 ms, typical
• Hardware Write-Protect
• ESD Protection >4,000V
• More than 1 Million Erase/Write Cycles
• Data Retention >200 Years
• Factory Programmable 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. 24AA01/24LC01B
(24XX01*) is a 1 Kbit Electrically Erasable PROM. The
device is organized as one block of 128 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
24XX01 also has a page write capability for up to 8
bytes of data. The 24XX01 is available in the standard
8-pin PDIP, surface mount SOIC, TSSOP, 2x3 DFN,
2x3 TDFN and MSOP packages, and is also available
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 24XX01 (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.
DS21711J-page 1

1 page
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24AA01 pdf, schematic
24AA01/24LC01B
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.
D1 VIH
WP, SCL and SDA pins
D2 —
High-level input voltage 0.7 VCC
D3 VIL
Low-level input voltage
D4
VHYS
Hysteresis of Schmitt
0.05 VCC
Trigger inputs
D5 VOL
Low-level output voltage
D6 ILI
Input leakage current
D7 ILO
Output leakage current
D8 CIN,
Pin capacitance
COUT (all inputs/outputs)
D9 ICC write Operating current
D10 ICC read
D11 ICCS
Standby current
Typ.
0.1
0.05
0.01
Max.
0.3 VCC
0.40
±1
±1
10
3
1
1
5
Note: This parameter is periodically sampled and not 100% tested.
Units
Conditions
——
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
DS21711J-page 2
© 2009 Microchip Technology Inc.

2 Page
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24AA01 equivalent
24AA01/24LC01B
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
Description
— Not Connected
— Not Connected
— Not Connected
2 Ground
3 Serial Address/Data I/O
1 Serial Clock
5 Write-Protect Input
4 +1.7V to 5.5V Power Supply
2.1 A0, A1, A2
The A0, A1 and A2 pins are not used by the 24XX01.
They may be left floating or tied to either VSS or VCC.
2.2 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.
2.3 Serial Clock (SCL)
The SCL input is used to synchronize the data transfer
to and from the device.
2.4 Write-Protect (WP)
This pin must be connected to either VSS or VCC.
If tied to VSS, normal memory operation is enabled
(read/write the entire memory 00-7F).
If tied to VCC, write operations are inhibited. The entire
memory will be write-protected. Read operations are
not affected.
© 2009 Microchip Technology Inc.
DS21711J-page 5

5 Page
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24AA01 diode, scr
24AA01/24LC01B
FIGURE 6-2:
PAGE WRITE
Bus Activity
Master
S
T
A
R
Control
Byte
T
SDA Line
S 10 10 x x x0
Bus Activity
x = “don’t care”
Block
Select
Bits
A
C
K
Word
Address (n)
A
C
K
Data (n)
Data (n + 1)
Data (n + 7)
S
T
O
P
P
AAA
CCC
KKK
© 2009 Microchip Technology Inc.
DS21711J-page 9

9 Page
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24AA01 transistor, igbt
24AA01/24LC01B
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© 2009 Microchip Technology Inc.
DS21711J-page 21

21 Page





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