MC14C89 ONSEMI [ON Semiconductor], MC14C89 Datasheet
MC14C89
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MC14C89 Summary of contents
Page 1
... 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 ...
Page 2
... V I out = 3 4 5.5 V Output Short Circuit Current 5.5 V, see Figure 4) Normally High Output shorted to ground Normally Low Output shorted Input Threshold Voltage ( 5.0 V) (MC14C89AB, see Figure 5) Low Level High Level (MC14C89B, see Figure 6) Low Level High Level t t Input Impedance (+4 +5.5 V – ...
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... Duty Cycle = 50 5.0 ns The MC14C89B and MC14C89AB are designed to comply with EIA–232–E (formerly RS–232), the newer EIA–562 (which is a higher speed version of the EIA–232), and CCITT V.28 Recommendations. EIA–562 was written around modern integrated circuit technology, whereas EIA–232 ...
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... AMBIENT TEMPERATURE ( C) Figure 6. Typical Threshold Voltage versus Temperature 2.0 t MC14C89B 4.5 V 1.8 1.6 1 1.2 1 0.8 –40 –7 AMBIENT TEMPERATURE ( C) 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.4 4 MC14C89B, AB Figure 5. Typical Threshold Voltage 2.0 1.8 MC14C89AB 1.6 MC14C89B 5.5 V 1.4 1.2 1.0 0.8 57.5 85 –40 –7.5 Figure 7. Typical Effect of Response 5 5.5 V 4.0 3.0 2.0 1.0 Nominal 57 Figure 8 ...
Page 5
... The receiver inputs determine the state of the outputs in accordance with Table 1. The nominal V IL and V IH thresholds are 0.95 V and 1.90 V respectively for the MC14C89AB. For the MC14C89B, the nominal V IL and V IH thresholds are 0.95 and 1.30, respectively. The inputs are able to withstand 30 V referenced to ground. Should the input voltage exceed ground by more than 30 V, excessive currents will flow at the input pin ...
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... How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com 6 MC14C89B, AB OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 646–06 ISSUE L ...