深圳市云迪科技有限公司 （非本站正式会员）

A biexponential function defined by separate rise and fall times for voltage and current simulates the
combination wave. The standard 1.2 μs/50 μs combination waveform is shown in Figure 1 and in the test
description in Figure 15.
The device also includes additional desirable features for party-line data buses in electrically noisy environment
applications including industrial process control. The differential-driver design incorporates slew-rate-controlled
outputs sufficient to transmit data up to 250 kbps. Slew-rate control allows longer unterminated cable runs and
longer stub lengths from the main backbone than possible with uncontrolled and faster voltage transitions. A
unique receiver design provides a fail-safe output of a high level when the inputs are left floating (open circuit).
The SN75LBC184 and SN65LBC184 receiver also includes a high input resistance equivalent to one-fourth unit
load allowing connection of up to 128 similar devices on the bus.
The SN75LBC184 is characterized for operation from 0°C to 70°C. The SN65LBC184 is characterized from
−40°C to 85°C.