24LC014-I/SN Microchip Technology, 24LC014-I/SN Datasheet - Page 6
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24LC014-I/SN
Manufacturer Part Number
24LC014-I/SN
Description
IC EEPROM 1KBIT 400KHZ 8SOIC
Manufacturer
Microchip Technology
Specifications of 24LC014-I/SN
Memory Size
1K (128 x 8)
Package / Case
8-SOIC (3.9mm Width)
Operating Temperature
-40°C ~ 85°C
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Organization
128 K x 8
Interface Type
I2C
Maximum Clock Frequency
0.4 MHz
Access Time
900 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.5 V
Maximum Operating Current
3 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
2.5 V, 5.5 V
Memory Configuration
128 X 8
Clock Frequency
400kHz
Supply Voltage Range
2.5V To 5.5V
Memory Case Style
SOIC
No. Of Pins
8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
24LC014I/SN
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
24LC014-I/SN
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
24AA014/24LC014
5.0
A control byte is the first byte received following the
Start condition from the master device (Figure 5-1).
The control byte consists of a four-bit control code; for
the 24AA014/24LC014 this is set as ‘1010’ binary for
read and write operations. The next three bits of the
control byte are the Chip Select bits (A2, A1, A0). The
Chip Select bits allow the use of up to eight 24AA014/
24LC014 devices on the same bus and are used to
select which device is accessed. The Chip Select bits
in the control byte must correspond to the logic levels
on the corresponding A2, A1 and A0 pins for the device
to respond. These bits are in effect the three Most
Significant bits of the word address.
The last bit of the control byte defines the operation to
be performed. When set to a ‘1’, a read operation is
selected. When set to a ‘0’, a write operation is
selected. Following the Start condition, the 24AA014/
24LC014 monitors the SDA bus, checking the control
byte being transmitted. Upon receiving a ‘1010’ code
and appropriate Chip Select bits, the slave device out-
puts an Acknowledge signal on the SDA line. Depend-
ing on the state of the R/W bit, the 24AA014/24LC014
will select a read or write operation.
DS21809D-page 6
DEVICE ADDRESSING
FIGURE 5-1:
5.1
The Chip Select bits A2, A1 and A0 can be used to
expand the contiguous address space for up to 8K bits
by adding up to eight 24AA014/24LC014 devices on
the same bus. In this case, software can use A0 of the
control byte as address bit A8, A1 as address bit A9,
and A2 as address bit A10. It is not possible to
sequentially read across device boundaries.
Start Bit
S
Contiguous Addressing Across
Multiple Devices
1
Control Code
0
Slave Address
1
CONTROL BYTE FORMAT
© 2007 Microchip Technology Inc.
0
Read/Write Bit
Chip Select
A2
Acknowledge Bit
Bits
A1
A0
R/W
ACK