ATMEL AT24C01-10TI-2.7, AT24C01-10TI-2.5, AT24C01-10TI-1.8, AT24C01-10TI, AT24C01-10TC-2.7 Datasheet
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Features
•
Low Voltage and Standard Voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 2.7V to 5.5V)
– 2.5 (VCC = 2.5V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
•
Internally Organized 128 x 8
•
2-Wire Serial Interface
•
Bidirectional Data Transfer Protocol
•
100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility
•
4-Byte Page Write Mode
•
Self-Timed Write Cycle (10 ms max)
•
High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >3000V
•
Automotive Grade and Extended Temperature Devices Available
•
8-Pin PDIP, 8-Pin MSOP, 8-Pin TSSOP and 8-Pin JEDEC SOIC Packages
2-Wire Serial
EEPROM
1K (128 x 8)
Description
The AT24C01 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 industri al and comm ercial ap plicatio ns wher e low power
and low voltage operation are essential. The AT24C01 is available in space saving
8-pin PDIP, 8-pin MSOP, 8-pin TSSOP , and 8-pin JEDEC SOIC pac kages and is
accessed via a 2-wire serial interface. In addition, the entire family is available in 5.0V
(4.5V to 5.5V), 2.7V (2.7V to 5.5V), 2.5V (2.5V to 5.5V) and 1.8V (1.8V to 5.5V) versions.
Pin Configurations
Pin Name Function
NC No Connect
SDA Serial Data
SCL Serial Clock Input
Test Test Input (GND or V
8-Pin PDIP
CC
NC
NC
NC
GND
)
8-Pin MSOP
8-Pin TSSOP
1
2
3
4
8-Pin SOIC
8
VCC
7
TEST
6
SCL
5
SDA
AT24C01
2-Wire, 1K
Serial EEPROM
NC
NC
NC
GND
1
2
3
4
8
VCC
7
TEST
6
SCL
5
SDA
NC
NC
NC
GND
1
2
3
4
VCC
8
TEST
7
SCL
6
SDA
5
Rev. 0134C–07/98
1
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
Block Diagram
*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent damage to the de vic e. T his is a stres s r ating o nly an d
functional opera tion of the device at these or an y
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 reli abi li ty.
Pin Description
SERIAL CLOCK (SCL):
edge clock data into each EEPROM device and negative
edge clock data out of each device.
SERIAL DATA (SDA):
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
The SCL input is used to positive
The SDA pin is bidirectional for
AT24C01
Memory Organization
AT24C01, 1K SERIAL EEPROM:
128 pages of 1 byte each. The 1K requires a 7-bit data
word address for random word addressing.
Internally organiz ed wi th
AT24C01
Pin Capacitance
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +1.8V.
Symbol T est Condit ion Max Units Condition
C
I/O
C
IN
DC Characteristics
Applicable over recommend ed operating range from: TAI = -40°C to +85°C, VCC = +1.8V to +5.5V, TAC = 0°C to +70°C,
= +1.8V to +5.5V (unless otherwise noted).
V
CC
Symbol Parameter Test Condition Min Typ Max Units
Input/Output Capacitance (SDA) 8 pF V
I/O
= 0V
Input Capacitance (A0, A1, A2, SCL) 6 pF VIN = 0V
V
V
V
V
I
I
I
I
I
I
I
I
V
V
V
V
CC1
CC2
CC3
CC4
CC
CC
SB1
SB2
SB3
SB4
LI
LO
IL
IH
OL2
OL1
Supply Voltage 1.8 5.5 V
Supply Voltage 2.5 5.5 V
Supply Voltage 2.7 5.5 V
Supply Voltage 4.5 5.5 V
Supply Current VCC = 5.0V READ at 100 KHz 0.4 1.0 mA
Supply Current VCC = 5.0V WRITE at 100 KHz 2.0 3.0 mA
Standby Current VCC = 1.8V VIN = VCC or V
Standby Current VCC = 2.5V VIN = VCC or V
Standby Current V
= 2.7V VIN = VCC or V
CC
Standby Current VCC = 5.0V VIN = VCC or V
Input Leakage Current VIN = VCC or V
Output Leakage Current V
Input Low Level
Input High Level
(1)
(1)
OUT
= V
CC
SS
SS
SS
SS
SS
or V
Output Low Level VCC = 3.0V IOL = 2.1 mA 0.4 V
Output Low Level VCC = 1.8V IOL = 0.15 mA 0.2 V
Note: 1. VIL min and VIH max are reference only and are not tested.
SS
0.6 3.0
1.4 4.0
1.6 4.0
8.0 18.0
0.10 3.0
0.05 3.0
µ
µ
µ
µ
µ
µ
-0.6 VCC × 0.3 V
VCC × 0.7 VCC + 0.5 V
A
A
A
A
A
A
3
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