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LE24L082 Schematic ( PDF Datasheet ) - Sanyo Semicon Device

Teilenummer LE24L082
Beschreibung Two Wire Serial Interface EEPROM
Hersteller Sanyo Semicon Device
Logo Sanyo Semicon Device Logo 




Gesamt 11 Seiten
LE24L082 Datasheet, Funktion
www.DataSheet.co.kr
Ordering number : ENA1583
LE24L082
CMOS IC
Two Wire Serial Interface EEPROM
(8k EEPROM)
Overview
The LE24L082 is a 2-wire serial interface EEPROM. It realizes high speed and a high level reliability by incorporating
SANYO’s high performance CMOS EEPROM technology. This device is compatible with I2C memory protocol,
therefore it is best suited for application that requires small-scale re-writable nonvolatile parameter memory.
Functions
Capacity: 8k bits (1k × 8 bits)
Single supply voltage: 1.8V to 5.5V
Interface: Two wire serial interface (I2C Bus*)
Operating clock frequency: 400kHz
Low power consumption
: Standby: 2μA (max)
: Active (Read): 0.5mA (max)
Automatic page write mode: 16 Bytes
Read mode: Sequential read and random read
Erase/Write cycles: 105 cycles
Data Retention: 20 years
High reliability: Adopts SANYO’s proprietary symmetric memory array configuration (USP6947325)
Noise filters connected to SCL and SDA pins
Incorporates a feature to prohibit write operations under low voltage conditions.
package : MSOP8(150mil) LE24L082TT
* I2C Bus is a trademark of Philips Corporation.
* This product is licensed from Silicon Storage Technology, Inc. (USA), and manufactured and sold by
SANYO Semiconductor Co., Ltd.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
O2809 SY 20091008-S00003 No.1583-1/11
Datasheet pdf - http://www.DataSheet4U.net/






LE24L082 Datasheet, Funktion
www.DataSheet.co.kr
LE24L082
4 Acknowledge
During data transfer, 8 bits are transferred in succession, and then in the ninth clock cycle period the device on the
system bus receiving the data sets the SDA line to low, and sends the acknowledge signal indicating that the data has
been received. The acknowledge signal is not sent during an EEPROM internal write operation.
SCL
(EEPROM input)
SDA
(Master output)
SDA
(EEPROM output)
1
Start
condition
89
Acknowledge
bit output
tAA tDH
5 Device addressing
For the purposes of communication, the master device in the system generates the start condition for the slave device.
Communication with a particular slave device is enabled by sending along the SDA bus the device address, which is 7
bits long, and the read/write command code, which is 1 bit long, immediately following the start condition.
The upper four bits of the device address are called the device code which, for this product, is fixed as “1010.” This
device has the upper bit of the Slave Device address as the Slave address, which fixed internally. The value of Slave
address are S2=0.
When the device code input from SDA and the slave addresses are compared with the product’s device code and slave
addresses that were set at the mounting stage and found to match, the product sends the acknowledge signal during
the ninth clock cycle period, and initiates the read or write operation in accordance with the read or write command
code. If they do not match, the EEPROM returns to standby mode. When a read operation is performed immediately
after the slave device has been switched, the random read command must be used.
LE24L082
1
MSB
Device Code
01
Slave
Address
Memory
Address
0 S2 A9 A8
Device address word
R/W
LSB
No.1583-6/11
Datasheet pdf - http://www.DataSheet4U.net/

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