24AA64-I/SN Microchip Technology, 24AA64-I/SN Datasheet - Page 12

• Manufacturer Part Number: 24AA64-I/SN
• Description: IC EEPROM 64KBIT 400KHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 24AA64-I/SN

• Memory Size: 64K (8K x 8)
• Package / Case: 8-SOIC (3.9mm Width)
• Operating Temperature: -40°C ~ 85°C
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 100kHz, 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.7 V ~ 5.5 V
• Organization: 8 K x 8
• Interface Type: I2C
• Maximum Clock Frequency: 0.4 MHz
• Access Time: 5 ms
• 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, 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 24AA64I/SN

24AA64/24LC64
7.0
The descriptions of the pins are listed in Table 7-1.
TABLE 7-1:
7.1
The A0, A1 and A2 inputs are used by the 24XX64 for
multiple device operation. The levels on these inputs
are compared with the corresponding bits in the slave
address. The chip is selected if the compare is true.
Up to eight devices may be connected to the same bus
by using different Chip Select bit combinations. These
inputs must be connected to either V
7.2
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 the Start and Stop conditions.
DS21189H-page 12
Name
SDA
SCL
CC
V
V
WP
A0
A1
A2
CC
SS
(typical 10 k
PIN DESCRIPTIONS
A0, A1, A2 Chip Address Inputs
Serial Data (SDA)
PDIP
PIN FUNCTION TABLE
1
2
3
4
5
6
7
8
for 100 kHz, 2 k for 400 kHz).
SOIC
1
2
3
4
5
6
7
8
CC
or V
TSSOP
SS
1
2
3
4
5
6
7
8
.
MSOP
1
2
3
4
5
6
7
8
7.3
The SCL input is used to synchronize the data transfer
from and to the device.
7.4
WP can be connected to either V
An internal pull-down resistor on this pin will keep the
device in the unprotected state if left floating. If tied to
V
enabled (read/write the entire memory 0000-1FFF).
If tied to V
operations are not affected.
SS
ROTATED
, or left floating, normal memory operation is
TSSOP
3
4
5
6
7
8
1
2
Serial Clock (SCL)
Write-Protect (WP)
CC
, write operations are inhibited. Read
Chip Address Input
Chip Address Input
Chip Address Input
Ground
Serial Address/Data I/O
Serial Clock
Write-Protect Input
+1.8V to 5.5V Power Supply
 2003 Microchip Technology Inc.
Description
SS
, V
CC
or left floating.