93LC66A-I/SN

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93LC66A-I/SN, from Microchip Technology, is an 8-pin Serial EEPROM with a low-pin-count and small form factor. This device has a 1-Wire protocol to address each device individually, reducing the addressability pins, and requiring only a single data line. It features a low-voltage write operation and fast access time. The 93LC66A-I/SN is designed for use in portable and industrial devices.

Overview

The 93LC66A-I/SN is a low-cost, low-pin EEPROM with a 1-Wire interface, allowing it to be integrated into a wide range of applications. The device features 8Kbits of memory, providing a relatively large amount of data storage. The 93LC66A-I/SN also features a write-protect feature, which allows the device to be secured from unintended write cycles when connected to a system.

Application Fields

The 93LC66A-I/SN is commonly found in portable and industrial applications such as embedded systems, industrial automation systems, data logging applications, keypad encoders, RF ID systems and more. The device offers cost benefits and reliability for such applications.

Device Features

The 93LC66A-I/SN is an 8Kbit EEPROM that is available in an 8-pin 64-mil SOIC package. It features a 1-Wire protocol on a data line that allows power, signal, and addressability on the same line. It offers an ultra low-power operation due to the 1-Wire protocol requiring less power than other traditional interfaces. The EEPROM features a low-voltage write operation, which allows the part to be used in battery operated systems. In addition, the 93LC66A-I/SN features an onboard write-protect feature, which allows the device to be secured while in use.

Operation

The 93LC66A-I/SN is a 1-Wire device, which uses a single data line for communication and power. This simplifies cabling, reduces assembly costs, and removes the need for extra address lines. The 1-Wire protocol allows the device to be addressed individually, reducing the overall number of pins required to address multiple devices. The 93LC66A-I/SN requires only a single open drain data line with a pullup resistor to operate. The device will enter an idle low-power state when no communication is taking place.

Data can be written to and read from the 93LC66A-I/SN using the 1-Wire protocol. Data can be transmitted in both directions, allowing data to be written to and read from the EEPROM. The device is designed to operate at temperatures ranging from 0°C to +70°C, and features a minimum write cycle time of 6ms.

Conclusion

The 93LC66A-I/SN is a low-cost, low-pin-count 8Kbit EEPROM from Microchip Technology. It features a 1-Wire interface, allowing it to operate with only a single open-drain data line and a pull-up resistor. The device offers an ultra-low-power operation, a low-voltage write operation, and an onboard write-protect feature, making it ideal for embedded, portable, and industrial applications.

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