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Atmel Electronic Components Datasheet



AT24C11

Two-wire Serial EEPROM


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AT24C11 pdf
Features
Low Voltage and Standard Voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
Internally Organized 128 x 8
Two-wire Serial Interface
Bidirectional Data Transfer Protocol
400 kHz (1.8V) and 1 MHz (2.5V, 2.7V, 5V) Compatibility
4-Byte Page Write Mode
Self-Timed Write Cycle (5 ms max)
High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Automotive Grade, Extended Temperature and Lead-Free/Halogen-Free
Devices Available
8-lead PDIP, 8-lead JEDEC SOIC, 5-lead SOT23 and 8-lead TSSOP Packages
Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers
Access to One Additional Page Upon Request
Two-wire Serial
EEPROM
1K (128 x 8)
AT24C11
Description
The AT24C11 provides 1024 bits of serial electrically erasable and programmable
read only memory (EEPROM) organized as 128 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 AT24C11 is available in space saving
8-lead PDIP, 8-lead JEDEC SOIC, 5-lead SOT23 and 8-lead TSSOP packages and is
accessed via a two-wire serial interface. In addition, the entire family is available in
2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions.
Table 0-1.
Pin Name
NC
SDA
SCL
TEST
Pin Configuration
Function
No Connect
Serial Data
Serial Clock Input
Test Input (GND or VCC)
NC
NC
NC
GND
8-lead TSSOP
18
27
36
45
8-lead SOIC
VCC
TEST
SCL
SDA
NC
NC
NC
GND
1
2
3
4
8 VCC
7 TEST
6 SCL
5 SDA
8-lead PDIP
NC
NC
NC
GND
1
2
3
4
8 VCC
7 TEST
6 SCL
5 SDA
SCL
GND
SDA
5-lead SOT23
1 5 VCC
2
3 4 TEST
Note: Not recommended for new
design; please refer to
AT24C01B datasheet.
Rev. 3409G–SEEPR–8/07



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AT24C11 pdf
Absolute Maximum Ratings*
Operating Temperature..................................–55°C to +125°C
Storage Temperature .....................................–65°C to +150°C
Voltage on Any Pin
with Respect to Ground .................................... –1.0V to +7.0V
Maximum Operating Voltage .......................................... 6.25V
DC Output Current........................................................ 5.0 mA
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Figure 0-1.
Block Diagram
VCC
GND
WP
SCL
SDA
A2
A1
A0
START
STOP
LOGIC
LOAD
DEVICE
ADDRESS
COMPARATOR
SERIAL
CONTROL
EN
H.V. PUMP/TIMING
LOGIC
COMP
LOAD INC
DATA RECOVERY
R/W DATA WORD
ADDR/COUNTER
EEPROM
Y DEC
SERIAL MUX
DIN
DOUT
DOUT/ACK
LOGIC
1. Pin Description
SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each EEPROM
device and negative edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open-drain
driven and may be wire-ORed with any number of other open-drain or open collector devices.
2 AT24C11
3409G–SEEPR–8/07



Part Number AT24C11
Description Two-wire Serial EEPROM
Maker ATMEL Corporation - ATMEL Corporation
Total Page 15 Pages
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