LE24CBK222 Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – Triple port EEPROM Two Wire Serial Interface (2K+2K EEPROM)

Ordering number : EN*A1811A
LE24CBK222
CMOS IC
Triple port EEPROM
Two Wire Serial Interface
(2K+2K EEPROM)
Overview
The triple port EEPROM series consists of two independent banks, and each bank can be controlled separately using
dedicated control pins. The EEPROM also features a control port, which is a third pin separate from the pins used for the
banks, and by accessing the memory areas from this control port, the two-bank configuration (2K bits + 2K bits) can be
used as a pseudo-one-bank configuration (4K bits). Together with the 16-byte page write function, this enables a
reduction in the number of factory write processes.
Furthermore, the EEPROM has a configuration area which is separate from the 2K-bit + 2K-bit area, and by using the
settings stored in this configuration area, it is possible to change the slave address for each port and to set read/write
protection for each port.
This product incorporates SANYO's high performance CMOS EEPROM technology and realizes high-speed operation
and high-level reliability. The interface of this product is compatible with the I²C bus protocol, making it ideal as a
nonvolatile memory for small-scale parameter storage.
In addition, this product also supports DDC2^TM, so it can also be used as an EDID data storage memory for display
equipment.
Functions
• Capacity
: Bank1:2K bits (256 × 8 bits) + Bank2:2K bits (256 × 8 bits)
+ configuration area: 128 bits (16 × 8 bits), 4224 bits in total
• Single supply voltage
• Interface
: 2.5V to 5.5V
: Two wire serial interface (I²C Bus*), VESA DDC2^TM compliant** 3-port access
• Operating clock frequency : 400kHz (max)
• Low power consumption : Standby: 5μA (max)
: One-bank read: 0.5 mA (max.), Two-bank simultaneous read: 1.0 mA (max.)
* : I²C Bus is a trademark of Philips Corporation.
Continued on next page.
** : DDC and EDID are trademarks of Video Electronics Standard Association (VESA).
* 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
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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
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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.
10511 SY/92910 SY No.1811-1/20