1 Features

? Meets or exceeds the requirements of the TIA/

EIA-485A and TIA/EIA-422B standards

? Enhanced Product

– Military temperature range (-55°C to 125°C)

– One wafer fabrication site and one assembly

and test site

– Gold bond wire, NiPdAu lead finish

– Wafer lot traceability

– Extended product life cycle

? 3V to 5.5V supply voltage

? Differential output exceeds 2.1V for PROFIBUS

compatibility with 5V supply

? 1.65V to 5.5V Supply for data and enable signals

? SLR Pin Selectable Data Rates:

– THVD2410V-EP : 250kbps and 1Mbps

– THVD2450V-EP, THVD2452V-EP: 20Mbps and

50Mbps

? Bus I/O protection

– ±70V DC bus fault

– ±16kV HBM ESD

– THVD2410V-EP, THVD2450V-EP

? ±15kV IEC 61000-4-2 contact and air-gap

discharge

– THVD2452V-EP

? ±8kV IEC 61000-4-2 contact and air-gap

discharge

– ±4kV IEC 61000-4-4 fast transient burst

? Half-duplex and full-duplex devices available in

two speed grades

? Symmetric common mode voltage range: ±12V

? Enhanced receiver hysteresis for noise immunity

? Low power consumption

– Low shutdown supply current: < 1μA

– Current during operation: < 5.3mA

? Glitch-free power-up/down for hot plug-in capability

? Open, short, and idle bus failsafe

? Thermal shutdown

? 1/8 unit load (up to 256 bus nodes)

? Small mm x 3mm VSON package (half-duplex) to

save board space, or 14-D (full-duplex) for drop-in

compatibility

2 Applications

? Avionics

? Smart munitions

? Sensors, imaging and radar

? Ruggedized communication

3 Description

THVD24xxV-EP are ±70V fault-protected, half and

full-duplex RS-422/RS-485 transceivers using a 1.65V

to 5.5V logic supply for data and enable logic signals,

and a 3V to 5.5V bus side supply. These devices have

slew rate select feature that enables them to be used

at two maximum speeds based on the SLR pin setting

These devices feature integrated IEC ESD protection,

eliminating the need for external system-level

protection components. The ±12V input commonmode

range makes reliable data communication over

longer cable run lengths and/or in the presence

of large ground loop voltages. Enhanced 250mV

receiver hysteresis provides high noise rejection. In

addition, the receiver fail-safe feature makes sure of

a logic high when the inputs are open or shorted

together.

THVD24xxV-EP half-duplex devices are available

in small VSON package for space-constrained

applications. The devices are available in standard

14-SOIC package.