The LT1780CSW#TR from Linear Technology is a high-performance, low-power RS232 transceiver with integrated charge pump circuitry for single-ended data transmission. This device is designed to meet the requirements of the EIA/TIA-232-F and V.28/V.24 specifications, even at a low power supply of 3.3V, making it ideal for portable or compact communication devices.

Key Features

• Supply Voltage: Operates from a single 3.3V supply, which is beneficial for battery-operated and power-sensitive applications.
• Data Rate: Capable of data rates up to 120kbps, providing efficient and reliable serial communication for a variety of digital systems.
• Low Power Consumption: Features a low-power shutdown mode that reduces power consumption to 10µA, maximizing battery life in portable systems.
• Integrated Charge Pump: The onboard charge pump circuitry generates the necessary RS232 voltage levels (+/-10V) from a single 3.3V supply, eliminating the need for multiple power sources.
• ESD Protection: Equipped with enhanced electrostatic discharge (ESD) protection up to ±10kV, ensuring robust performance in harsh environments.
• Driver/Receiver Channels: Includes two drivers and two receivers, allowing full-duplex communication for serial data transfer.
• Package: Available in a widebody SOIC-16 package, designated by the 'SW' suffix, suitable for surface-mount technology (SMT) assembly.
• Tape and Reel: The '#TR' designation indicates that the device is provided in tape and reel packaging, which is optimized for automated pick-and-place assembly processes.

Applications

The LT1780CSW#TR is versatile and can be used in a wide range of applications, including:

• Portable or handheld devices
• Notebook and laptop computers
• Battery-powered equipment
• Point-of-sale (POS) terminals
• Peripheral devices and interfaces

In conclusion, the LT1780CSW#TR by Linear Technology is a reliable and efficient solution for designers looking to implement RS232 communications in their systems with minimal power draw and a high degree of protection against ESD events.