DS34C87TMX

The Texas Instruments DS34C87TMX is a CMOS Quad TRI-STATE Differential Line Driver engineered for reliable digital data transmission over balanced lines. It fully complies with EIA standard RS-422, offering robust performance while maintaining low power consumption characteristic of CMOS technology. This device is suitable for constructing serial and terminal interfaces.

The DS34C87TMX accepts TTL or CMOS input levels and translates them to RS-422 output levels. It features special output circuitry that prevents individual drivers from loading the bus when powered down, and includes separate enable circuitry for each pair of drivers. With typical propagation delays of 6 ns and output skew of 0.5 ns, it ensures signal integrity.

This line driver operates from a single 5V supply (4.5V to 5.5V) and is available in a 16-SOIC surface mount package. The operating temperature range is -40°C to 85°C, making it suitable for various industrial applications. All inputs are protected against electrostatic discharge.

Key specifications include a 4/0 driver configuration, support for RS422 and RS485 protocols, and TRI-STATE outputs for flexible system bus connections. Its low quiescent current and ability to operate without loading the line when VCC is 0V further enhance its utility in power-sensitive designs.