24AA02E48-I/SN Microchip Technology, 24AA02E48-I/SN Datasheet - Page 6

• Manufacturer Part Number: 24AA02E48-I/SN
• Description: IC EEPROM 2KBIT 400KHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 24AA02E48-I/SN

• Memory Size: 2K (256 x 8)
• Package / Case: 8-SOIC (3.9mm Width)
• Format - Memory: EEPROMs - Serial (with MAC Address)
• Memory Type: EEPROM
• Speed: 100kHz, 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Organization: 256 K x 8
• Interface Type: I2C
• Maximum Clock Frequency: 0.1 MHz
• Access Time: 3500 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.7 V
• Maximum Operating Current: 3 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 1.8 V , 2.5 V , 3.3 V , 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

24AA02E48/24AA025E48
2.0
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
2.1
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 V
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
The SCL input is used to synchronize the data transfer
to and from the device.
2.3
The A0, A1 and A2 pins are not used by the
24AA02E48. They may be left floating or tied to either
V
For the 24AA025E48, the levels on the A0, A1 and A2
inputs are compared with the corresponding bits in the
slave address. The chip is selected if the compare is
true. For the 6-lead SOT-23 package, pin A2 is not
connected and its corresponding bit in the slave
address should always be set to ‘0’.
Up to eight 24AA025E48 devices (four for the SOT-23
package) may be connected to the same bus by using
different Chip Select bit combinations. These inputs
must be connected to either V
DS22124D-page 6
Note 1:
SS
CC
or V
Name
(typical 10 k for 100 kHz, 2 k for 400 kHz).
SDA
SCL
V
V
NC
A0
A1
A2
CC
PIN DESCRIPTIONS
Serial Address/Data Input/Output
(SDA)
Serial Clock (SCL)
A0, A1, A2 Chip Address Inputs
CC
SS
.
Chip address inputs A0, A1 and A2 are not connected on the 24AA02E48.
PIN FUNCTION TABLE
SOIC
1
2
3
4
5
6
7
8
SS
or V
CC
.
5-Pin SOT-23
—
—
—
2
3
1
5
4
6-Pin SOT-23
—
—
5
4
2
3
1
6
Chip Address Input
Chip Address Input
Chip Address Input
Ground
Serial Address/Data I/O
Serial Clock
Not Connected
+1.7V to 5.5V Power Supply
 2010 Microchip Technology Inc.
Description
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