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AT24C02B Datasheet

  • AT24C02B

  • 2-Wire Serial EEPROM

  • 48.00KB

  • 0页

  • ATMEL

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Features
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Low-voltage and Standard-voltage Operation
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鈥?1.8 (V
CC
= 1.8V to 5.5V)
Internally Organized 256 x 8 (2K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (2K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5 ms max)
High-reliability
鈥?Endurance: 1 Million Write Cycles
鈥?Data Retention: 100 Years
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead SOT23,
8-lead TSSOP and 8-ball dBGA2 Packages
Lead-free/Halogen-free
Available in Automotive
Die Sales: Wafer Form, Tape and Reel and Bumped Wafers
Two-wire
Serial EEPROM
2K (256 x 8)
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AT24C02B
Description
The AT24C02B provides 2048
bits
of serial electrically erasable
and
programmable
read-only memory (EEPROM) organized
as
256 words of
8 bits
each. The device is
optimized for use in many industrial
and
commercial
applications
where low-power
and
low-voltage operation
are
essential. The AT24C02B is
available
in space-saving
8-lead
PDIP,
8-lead
JEDEC
SOIC, 8-lead
Ultra Thin Mini-MAP (MLP 2x3)
,
5-lead
SOT23, 8-lead
TSSOP,
and 8-ball
dBGA2 packages
and
is
accessed
via
a
Two-wire
serial interface. In
addition,
the AT24C02B is
available
in 1.8V (1.8V to 5.5V) version.
Table 0-1.
Pin Name
A0 - A2
SDA
SCL
WP
GND
VCC
Pin Configuration
Function
Address Inputs
Serial
Data
Serial
Clock Input
Write Protect
Ground
Power
Supply
8-lead Ultra-Thin
Mini-MAP (MLP 2x3)
VCC
WP
SCL
SDA
8
7
6
5
1
2
3
4
A0
A1
A2
GND
8-ball dBGA2
VCC
WP
SCL
SDA
8
7
6
5
1
A0
2
A1
3
A2
4
GND
Bottom View
8-lead TSSOP
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
A0
A1
A2
GND
Bottom View
8-lead SOIC
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
Note:
For use of 5-lead
SOT23,
the
software A2, A1,
and
A0
bits
in
5-lead SOT23
the device
address
word
WP
1
5
must
be
set to zero to prop-
SCL
erly communicate.
GND
2
SDA
3
4
VCC
8-lead PDIP
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
5126H鈥揝EEPR鈥?/07

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