24LC014-I/ST Microchip Technology, 24LC014-I/ST Datasheet - Page 5
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24LC014-I/ST
Manufacturer Part Number
24LC014-I/ST
Description
IC EEPROM 1KBIT 400KHZ 8TSSOP
Manufacturer
Microchip Technology
Specifications of 24LC014-I/ST
Memory Size
1K (128 x 8)
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-TSSOP
Memory Configuration
128 X 8 / 64 X 16
Ic Interface Type
I2C
Clock Frequency
400kHz
Supply Voltage Range
2.5V To 5.5V
Memory Case Style
TSSOP
No. Of Pins
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
24LC014I/ST
2.0
The descriptions of the pins are listed in
TABLE 2-1:
2.1
The A0, A1 and A2 inputs are used by the 24AA014/
24LC014 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 com-
pare 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
For the SOT-23 devices up to four devices may be con-
nected to the same bus using different Chip Select bit
combinations.
In most applications, the chip address inputs A0, A1
and A2 are hard-wired to logic ‘0’ or logic ‘1’. For
applications in which these pins are controlled by a
microcontroller or other programmable device, the chip
address pins must be driven to logic ‘0’ or logic ‘1’
before normal device operation can proceed.
2.2
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.
2010 Microchip Technology Inc.
Name
SDA
SCL
V
Note 1: The exposed pad on the DFN/TDFN packages can be connected to V
V
WP
A0
A1
A2
CC
CC
SS
(typical 10 k for 100 kHz, 2 kfor 400 kHz).
PIN DESCRIPTIONS
A0, A1, A2 Chip Address Inputs
Serial Data (SDA)
PDIP
1
2
3
4
5
6
7
8
PIN FUNCTION TABLE
SOIC
1
2
3
4
5
6
7
8
TSSOP
1
2
3
4
5
6
7
8
CC
or V
Table
SS
DFN
2-1.
.
1
2
3
4
5
6
7
8
(1)
TDFN
1
2
3
4
5
6
7
8
(1)
2.3
The SCL input is used to synchronize the data transfer
from and to the device.
2.4
This pin must be connected to either V
to V
write operations are inhibited but read operations are
not affected.
3.0
The 24AA014/24LC014 supports a bidirectional, 2-wire
bus and data transmission protocol. A device that
sends data onto the bus is defined as transmitter, while
a device receiving data is defined as a receiver. The
bus has to be controlled by a master device which gen-
erates the Serial Clock (SCL), controls the bus access
and generates the Start and Stop conditions, while the
24AA014/24LC014 works as slave. Both master and
slave can operate as transmitter or receiver, but the
master device determines which mode is activated.
MSOP
SS
1
2
3
4
5
6
7
8
24AA014/24LC014
, write operations are enabled. If tied to V
Serial Clock (SCL)
Write-Protect (WP)
FUNCTIONAL DESCRIPTION
SOT-23
—
—
5
4
2
3
1
6
SS
Chip Address Input
Chip Address Input
Chip Address Input
Ground
Serial Address/Data I/O
Serial Clock
Write-Protect Input
+1.7V to 5.5V Power Supply
or left floating.
Description
DS21809G-page 5
SS
or V
CC
. If tied
CC
,