DS89C21
www.ti.com SNLS091C – JUNE 1998 – REVISED APRIL 2013 DS89C21 Differential CMOS Line Driver and Receiver Pair
Check for Samples: DS89C21 FEATURES DESCRIPTION The DS89C21 is a differential CMOS line driver and
receiver pair, designed to meet the requirements of
TIA/EIA-422-A (RS-422) electrical characteristics
interface standard. The DS89C21 provides one driver
and one receiver in a minimum footprint. The device
is offered in an 8-pin SOIC package. 1 2 Meets TIA/EIA-422-A (RS-422) and CCITT V.11
Recommendation
LOW POWER Design—15 mW Typical
Guaranteed AC Parameters:
– Maximum Driver Skew 2.0 ns
– Maximum Receiver Skew 4.0 ns
Extended Temperature Range: -40В°C to
+85В°C
Available in SOIC Packaging
Operates over 20 Mbps
Receiver OPEN Input Failsafe Feature The CMOS design minimizes the supply current to 6
mA, making the device ideal for use in battery
powered or power conscious applications.
The driver features a fast transition time specified at
2.2 ns, and a maximum differential skew of 2 ns
making the driver ideal for use in high speed …
