CAT93C46LI-G

Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	1Kb (128 x 8, 64 x 16)
Clock Frequency:	2MHz
Write Cycle Time - Word, Page:	--
Memory Interface:	SPI
Voltage - Supply:	1.8 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:	CAT93C46

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Introduction

CAT93C46LI-G is a type of small-capacity nonvolatile memory specifically developed for automotive projects. It has a number of advantages over other EEPROM chips typically used in applications, including robustness, high endurance, low power consumption and reliability. This particular chip includes 256 bits of EEPROM memory, divided into 16 byte addressable words.

Application Field and Working Principle

CAT93C46LI-G has several applications within automotive electronics, including use in motor control modules, on board diagnostics, vehicle security and body control. The devices use serial interface communication to access their memory area, allowing chips to be stacked together. The memory is arranged in words of 16 bits each and accessed through an 8-bit bus, allowing for a total of sixteen addressable words for the device. The CAT93C46LI-G consists of an 8-bit bus, an 8-bit multiplexed address for data and command, a chip select, an enable, and three connection pins for power, ground and an active low write enable signal. Data can be written and read from the device while in either a programming or memory mode. In programming mode, a single write command must be executed to write each address. In the memory mode however, read and write operations can be executed without a write command. Data is written word by word, with a single write command written to instruct the device to store sixteen bits of data.When the chip is in programming mode, the enable and chip select pins must be set to a logic low for the write and read operations to begin. In memory mode, once the enable and chip select pins have been set to a logic low the write and read operations will start automatically. A separate enable or chip select pin is required if two or more devices are stacked together.The CAT93C46LI-G also offers a number of security features, including a passcode-protected write enable (which prevents unauthorized changes to the memory), and a chip enable/disable function (which allows the device to be powered off when not in use). Furthermore, the device includes a unique chip lock feature, ensuring that the memory content of the device cannot be overwritten without first entering a valid unlock code.

Conclusion

CAT93C46LI-G is a cost-effective and reliable solution for automotive applications, offering both robustness and low power consumption. Its small form factor and efficient memory access system make it an ideal choice for applications such as motor control, on board diagnostics, vehicle security and body control. Its security features make it more reliable for applications which require extra protection from tampering. Finally, its low power consumption and cost effectiveness make it a great choice for cost-sensitive applications.

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