24AA01/SN Microchip Technology, 24AA01/SN Datasheet - Page 5

• Manufacturer Part Number: 24AA01/SN
• Description: IC EEPROM 1KBIT 400KHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 24AA01/SN

• Memory Size: 1K (128 x 8)
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 100kHz, 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.7 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 8-SOIC (3.9mm Width)
• Memory Configuration: 128 X 8 / 64 X 16
• Ic Interface Type: I2C
• Clock Frequency: 400kHz
• Supply Voltage Range: 1.7V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.0
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
2.1
The A0, A1 and A2 pins are not used by the 24XX01.
They may be left floating or tied to either V
2.2
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 V
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.
© 2009 Microchip Technology Inc.
Name
SDA
SCL
V
V
WP
A0
A1
A2
CC
SS
PIN DESCRIPTIONS
A0, A1, A2
Serial Address/Data Input/Output
(SDA)
PDIP
1
2
3
4
5
6
7
8
PIN FUNCTION TABLE
CC
SOIC
1
2
3
4
5
6
7
8
(typical 10 kΩ for 100 kHz,
TSSOP
1
2
3
4
5
6
7
8
DFN
SS
1
2
3
4
5
6
7
8
or V
CC
TDFN
1
2
3
4
7
8
5
6
.
MSOP
1
2
3
4
5
6
7
8
2.3
The SCL input is used to synchronize the data transfer
to and from the device.
2.4
This pin must be connected to either V
If tied to V
(read/write the entire memory 00-7F).
If tied to V
memory will be write-protected. Read operations are
not affected.
SOT23
—
—
—
2
3
1
5
4
24AA01/24LC01B
Serial Clock (SCL)
Write-Protect (WP)
CC
SS
, write operations are inhibited. The entire
, normal memory operation is enabled
SC-70
—
—
—
2
3
1
5
4
Not Connected
Not Connected
Not Connected
Ground
Serial Address/Data I/O
Serial Clock
Write-Protect Input
+1.7V to 5.5V Power Supply
Description
DS21711J-page 5
SS
or V
CC
.