Download the MC14C89AB datasheet PDF.
This datasheet also covers the MC14C89B variant, as both devices belong to the same quad low power line receivers family and are provided as variant models within a single manufacturer datasheet.
General Description
direct replacements for the MC1489A and MC1489.
232 specifications and also the faster EIA
562 and CCITT V.28 specifications.
Key Features
Low Power Consumption.
Meets EIA.
232.
E, EIA.
562, and CCITT V.28 Recommendations.
TTL/CMOS Compatible Outputs.
Standard Power Supply: + 5.0 V ±10%.
Pin Equivalent to MC1489, MC1489A, TI’s SN75C189/A, SN75189/A
and National Semiconductor’s DS14C89/A.
External Filtering Not Required in Most Cases.
Threshold Level Externally Adjustable.
Hysteresis: 0.35 V for MC14C89B, 0.95 V for MC14C89AB.
Full PDF Text Transcription for MC14C89AB (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
MC14C89AB. For precise diagrams, and layout, please refer to the original PDF.
MC14C89B, AB Quad Low Power Line Receivers The MC14C89B and MC14C89AB are low monolithic quad line receivers using bipolar technology, which conform to the EIA–232–E, EIA...
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eceivers using bipolar technology, which conform to the EIA–232–E, EIA–562 and CCITT V.28 Recommendations. The outputs feature LSTTL and CMOS compatibility for easy interface to +5.0 V digital systems. Internal time–domain filtering eliminates the need for external filter capacitors in most cases. The MC14C89B has an input hysteresis of 0.35 V, while the MC14C89AB hysteresis is 0.95 V. The response control pins allow adjustment of the threshold level if desired. Additionally, an external capacitor may be added for additional noise filtering. The MC14C89B and MC14C89AB are available in both a 14 pin dual–in–line plastic DIP
MC14C89AB Datasheet
