LTC1387CSW - Single 5V RS232/RS485 Multiprotocol Transceiver

The LTC1387CSW from Linear Technology is a versatile and robust integrated circuit designed to cater to the needs of communication interfaces requiring both RS232 and RS485 protocols. This multiprotocol transceiver operates from a single 5V supply, making it an ideal choice for systems that require efficient power management and minimal power consumption.

The LTC1387CSW features a convenient dual protocol interface capability, allowing users to switch between RS232 and RS485 modes with ease. This flexibility makes it suitable for a wide range of applications, including industrial control systems, point-of-sale terminals, and networked communication devices where varying communication standards are employed.

In RS232 mode, the LTC1387CSW can drive up to three RS232 loads, providing a robust connection for serial communication over longer distances than typical CMOS transceivers. Its RS485 mode supports the full-duplex operation, enabling simultaneous transmission and reception of data. This is particularly useful in network environments where data integrity and real-time communication are critical.

The device is housed in a 20-lead wide-body SOIC package, offering a compact footprint for space-constrained applications. The LTC1387CSW operates over the commercial temperature range, ensuring reliable performance across various operating conditions.

Key features of the LTC1387CSW include:

• Single 5V Supply Operation
• 1 Driver and 1 Receiver for RS232
• 1 Driver and 1 Receiver for RS485/RS422
• Low Operating Current: 2.5mA (Typical)
• Guaranteed Data Rate: 120Kbps (RS232), 2.5Mbps (RS485)
• ESD Protection for RS232 I/O Pins: ±10kV
• Thermal Shutdown Protection
• Pin-Selectable Automatic Power-Down Feature
• Driver Output Short-Circuit Protection

With its robust feature set and multiprotocol support, the LTC1387CSW is an excellent choice for designers looking to create flexible, reliable, and efficient communication interfaces. Its protection features and low power consumption make it a durable and economical solution for modern electronic systems.