AT93C56-10PI-2.7

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	2Kb (256 x 8, 128 x 16)
Clock Frequency:	2MHz
Write Cycle Time - Word, Page:	10ms
Memory Interface:	SPI
Voltage - Supply:	2.7 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-PDIP
Base Part Number:	AT93C56

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Introduction

AT93C56-10PI-2.7 is a wide input voltage, wide temperature range, 1-Wire® EEPROM. It is suitable for applications requiring high reliability and low power operation with low pin count in harsh environments. AT93C56-10PI-2.7 offers several advantages over conventional EEPROMs, such as 1-Wire bus protocol, 64-byte memory size, no power requirements for memory reads, and a special burst read mode for three-byte address. Its low power operation and wide temperature range makes it suitable for automotive, medical and telecommunications applications.

Application Field

AT93C56-10PI-2.7 is especially suitable for harsh automotive and industrial environments. It is designed to resist wide temperature range from -40°C to +125°C. With its high reliability and low power, AT93C56-10PI-2.7 can provide a critical link in vehicle security systems, power line communication networks, smart home systems and many other industrial applications. It is also commonly used in the medical industry, providing reliable data recording and back-end analysis solutions.

Working Principle

AT93C56-10PI-2.7 is programmed and read using 1-Wire protocol. This protocol includes device addressing, data transmission, memory address random access and burst read modes. Data transmission is achieved via a single-pin serial bus, utilizing multiple time slots that sends data from write and read commands. To address the device, a master device sends a two byte address in the form of a 16-bit CRC (Cyclic Redundancy Check) code, followed by the three-byte memory address. After receiving the addressing command, the device will respond with an acknowledgment (ACK) signal to confirm the data was received.

AT93C56-10PI-2.7 supports random read mode which allows the user to access and read from non-sequential locations. The sequential read mode allows the user to singly or incrementally read from the specified start address. This is the primary mode used to access the EEPROM memory. The read mode gives the user the opportunity to read data from selected bits, bytes or words. This feature is especially useful when the user wants to limit the amount of data transfer which would otherwise require many bytes. In addition, the device supports a burst mode that allows the user to read three subsequent bytes with only one read command.

AT93C56-10PI-2.7 also supports writing reads to the device. To initiate a write cycle, the device must first be addressed and then receive an acknowledgment signal. After receiving the acknowledgment signal, the data is written one byte at a time. To increase efficiency and reduce the number of write cycles, the device also supports page writes. A page write can write up to 16 bytes at the same time. To conclude a write cycle, the user must send the write enable command and the device will respond with acknowledgment signal.

In addition to the 1-Wire protocol, AT93C56-10PI-2.7 also supports other security features. These features include a write protect pin for extra security, as well as a write status register for monitoring the status of the write protect pin. These security measures ensure that the content of the EEPROM remains protected even in harsh environments.

Conclusion

AT93C56-10PI-2.7 is an ideal EEPROM for applications with high reliability requirements and low power operation in harsh environments. Its low cost and wide temperature range makes it useful for a variety of markets and applications. In addition, features such as the 1-Wire protocol and security features offer great flexibility for its users. Its easily operated programming and readout system make it an excellent choice for the user.

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