11AA02E64T-I/SN

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	2Kb (256 x 8)
Clock Frequency:	100kHz
Write Cycle Time - Word, Page:	5ms
Memory Interface:	Single Wire
Voltage - Supply:	1.8 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	11AA02E64

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Introduction

11AA02E64T-I/SN or 11AA02 is a type of non-volatile memory that utilizes Serial Peripheral Interface (SPI), and is referred to as an SPI-bus EEPROM. It is a small, serial EEPROM manufactured by STMicroelectronics which makes it ideal for many applications. This article will discuss the application field and working principle of 11AA02.

Application Field

11AA02 is a highly integrated and compact memory device which has been designed to help save space on printed circuit boards. As such, you can find applications in many industries where PC boards are the main component. This includes consumer devices, automotive electronics, industry automation, and medical products. The 11AA02 also has its specific uses within each field. For instance, in consumer electronics its small size makes it ideal for use in devices that have limited space such as cameras, watches, and portable music players. In automotive electronics, 11AA02 is used to store critical data that is needed for vehicle functions such as engine control and ABS. In industry automation, the 11AA02 is commonly used for storing settings such as PID controller tuning parameters.It is also used in medical applications for monitoring patient data such as heart rate, blood pressure, and temperature.

Working Principle

The 11AA02 uses a three-wire Serial Peripheral Interface (SPI) for communication. This includes MOSI (Master Out Slave In), MISO (Master In Slave Out), and SCK (Synchronous Clock). The SPI system is a full-duplex serial communication link which requires that all three lines are used to complete a transaction. The 11AA02 contains an internal array of registers which is the part that holds the data. It is programmed and erased through SPI commands. The internal registers are organized in memory pages which are 16-byte wide that can be programmed with up to 8 bits of data. The 11AA02 operates in two write modes. The Byte Write mode is used to write 1 byte and requires the least amount of instructions. The Page Write mode, on the other hand, is used to write up to 64 bytes of data in a Page. This mode is slightly more complex, as it requires an internal addressing mechanism for each byte in the page. After writing, the data is stored in a storage register until the memory is ready to be erased. The internal programming logic is handled by a watchdog timer which causes the device to enter an erase/write cycle when the timer expires.

Conclusion

In conclusion, the 11AA02E64T-I/SN is a highly integrated non-volatile memory device which is used in a variety of applications including consumer electronics, automotive electronics, industry automation, and medical products. Its small size makes it ideal for applications that have limited space. Additionally, the 11AA02 utilizes a three-wire SPI protocol which makes it easy to read and write data to the device.

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