MC1489 Motorola, MC1489 Datasheet
MC1489
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MC1489 Summary of contents
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... Quad Line Receivers The MC1489 monolithic quad line receivers are designed to interface data terminal equipment with data communications equipment in conformance with the specifications of EIA Standard No. EIA–232D. Input Resistance – 3 7.0 k Input Signal Range – Input Threshold Hysteresis Built In Response Control ...
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... Propagation Delay Time Fall Time Figure 1. Switching Response 5.0 Vdc R L All diodes 1N3064 or equivalent E in 3.0 V 50% 50 PLH TLH t THL 1 total parasitic capacitance which includes probe and wiring capacitances 2 MC1489, A Symbol Value Unit Vdc Vdc 1000 6.7 mW stg – ...
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... CC = 5.0 Vdc +25 C, unless otherwise noted) Figure 3. Input Current 10 8.0 6.0 4.0 2.0 0 – 2 – 4 – 6.0 – 8.0 – 10 – 25 – 20 – 15 – 10 – 5 INPUT VOLTAGE (V) Figure 5. MC1489A Input Threshold Voltage Adjustment 6.0 5.0 4 3.0 5 – 5.0 V 2.0 5 ILH V IHL – ...
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... MC1489, A APPLICATIONS INFORMATION turn–on voltage of 1.25 V and turn–off of 1.0 V for a typical hysteresis of 250 mV. The MC1489A has typical turn–on of 1.95 V and turn–off of 0.8 V for typically 1. hysteresis. Each receiver section has an external response control node in addition to the input and output pins, thereby allowing the designer to vary the input threshold voltage levels ...
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... Figure 10. Typical Translator Application – MOS Logic –V GG –V DD Figure 11. Typical Paralleling of Two MC1489, A Receivers to Meet EIA–232D Response–Control Pin Input 8.0 k 8.0 k Input Response–Control Pin MOTOROLA ANALOG IC DEVICE DATA MC1489, A MOS to DTL or TTL + 5.0 Vdc R MC1489 + 5.0 Vdc + 5 ...
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... Motorola, Inc. Motorola, Inc Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com 6 MC1489, A OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 646–06 ISSUE L 8 ...