1FEATURES
2• Meets EIA/TIA-232-E and CCITT V.28
Standards
• Failsafe - Output High for Open Input
• LOW Power Consumption
• On Chip Noise Filter
• Available in SOIC Package

DESCRIPTION
The DS14C89A, pin-for-pin compatible to the
DS1489A/MC1489A, ia a quad receiver designed to
interface data terminal equipment (DTE) with data
circuit-terminating equipment (DCE). These devices
translate levels conforming to EIA-232E and CCITT
V.28 standards to TTL/CMOS logic levels.
The device is fabricated in low threshold CMOS metal
gate technology. The device provides very low power
consumption compared to their bipolar equivalents:
900 μA (DS14C89A) versus 26 mA (DS1489A).
The DS14C89A provides on chip noise filtering which
eliminates the need for external response control filter
capacitors. When replacing the DS1489A with the
DS14C89A, the response control filter pins can be
tied high, low, or not connected.