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| Order this document by MC1489/D 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 - 3.0 k to 7.0 k MC1489, A * * * Input Signal Range - 30 V Input Threshold Hysteresis Built In Response Control a) Logic Threshold Shifting b) Input Noise Filtering QUAD MDTL LINE RECEIVERS EIA-232D SEMICONDUCTOR TECHNICAL DATA ORDERING INFORMATION Device MC1489P, AP MC1489D, AD TA = 0 to + 75C Operating Temperature Range Package Plastic SO-14 P SUFFIX PLASTIC PACKAGE CASE 646 D SUFFIX PLASTIC PACKAGE CASE 751A (SO-14) PIN CONNECTIONS Input A 1 2 3 4 5 6 7 14 VCC 13 Input D 12 Response Control D 11 Output D 10 Input C 9 8 Response Control C Output C Simplified Application Line Driver MC1488 Interconnecting Cable Line Receiver MC1489 Response Control A Output A Input B Response Control B Output B MDTL Logic Input Interconnecting Cable MDTL Logic Output Ground Representative Schematic Diagram (1/4 of Circuit Shown) 14 VCC 9.0 k RF Response Control 2 5.0 k 1.7 k 3 Output 3.8 k Input 1 MC1489 RF 6.7 k MC1489A 1.6 k 10 k 7 GND (c) Motorola, Inc. 1996 Rev 5 MOTOROLA ANALOG IC DEVICE DATA 1 MC1489, A MAXIMUM RATINGS (TA = + 25C, unless otherwise noted) Rating Power Supply Voltage Input Voltage Range Output Load Current Power Dissipation (Package Limitation, SO-14 and Plastic Dual In-Line Package) Derate above TA = + 25C Operating Ambient Temperature Range Storage Temperature Range Symbol VCC VIR IL PD 1/JA TA Tstg Value 10 30 20 1000 6.7 0 to + 75 - 65 to + 175 Unit Vdc Vdc mA mW mW/C C C ELECTRICAL CHARACTERISTICS (Response control pin is open.) (VCC = + 5.0 Vdc 10%, TA = 0 to + 75C, unless otherwise noted) Characteristics Positive Input Current Negative Input Current Input Turn-On Threshold Voltage (TA = + 25C, VOL 0.45 V) (VIH = + 25 Vdc) (VIH = + 3.0 Vdc) (VIH = - 25 Vdc) (VIH = - 3.0 Vdc) MC1489 MC1489A VIL MC1489 MC1489A VOH VOL IOS ICC PC tPLH tTLH tPHL tTHL (VIH = + 5.0 Vdc) (RL = 3.9 k) (RL = 3.9 k) (RL = 390 k) (RL = 390 k) 0.75 0.75 2.5 2.5 - - - - - 0.8 4.0 4.0 0.2 - 3.0 16 80 1.25 1.25 5.0 5.0 0.45 - 4.0 26 130 Vdc Vdc mA mA mW Symbol IIH IIL VIH 1.0 1.75 - 1.95 1.5 2.25 Vdc Min 3.6 0.43 - 3.6 - 0.43 Typ - - - - Max 8.3 - - 8.3 - Unit mA mA Vdc p Input Turn-Off Threshold Voltage (TA = + 25C, VOH 2.5 V, IL = - 0.5 mA) q Output Voltage High Output Voltage Low Output Short-Circuit Current (VIH = 0.75 V, IL = - 0.5 mA) (Input Open Circuit, IL = - 0.5 mA) (VIL = 3.0 V, IL = 10 mA) Power Supply Current (All Gates "on," Iout = 0 mA, VIH = + 5.0 Vdc) Power Consumption SWITCHING CHARACTERISTICS (VCC = 5.0 Vdc 1%, TA = + 25C, See Figure 1.) Propagation Delay Time Rise Time Propagation Delay Time Fall Time - - - - 25 120 25 10 85 175 50 20 ns ns ns ns TEST CIRCUITS Figure 1. Switching Response 5.0 Vdc RL All diodes 1N3064 or equivalent Ein CL Eo C 1/4 MC1489A Response Node VO 3.0 V 50% Ein tPLH EO tTHL tTLH 1.5 V 1.5 V 50% tTLH and tTHL measured 10% - 90% Vin VR Figure 2. Response Control Node R C, capacitor is for noise filtering. R, resistor is for threshold shifting. CL = 15 pF = total parasitic capacitance which includes probe and wiring capacitances 2 MOTOROLA ANALOG IC DEVICE DATA MC1489, A TYPICAL CHARACTERISTICS (VCC = 5.0 Vdc, TA = +25C, unless otherwise noted) Figure 3. Input Current 10 8.0 IL, INPUT CURRENT (mA) VO , OUTPUT VOLTAGE (Vdc) 6.0 4.0 2.0 0 - 2.0 - 4.0 - 6.0 - 8.0 - 10 - 25 - 20 - 15 - 10 - 5.0 0 5.0 10 15 20 25 VI II 6.0 5.0 4.0 RT 5.0 k 3.0 Vth 5.0 V 2.0 1.0 0 Figure 4. MC1489 Input Threshold Voltage Adjustment VI RT 13 k Vth 5.0 V RT EO 1 RT 11 k Vth - 5.0 V RT Vth VILH VIHL 0 1.0 2.0 3.0 - 3.0 - 2.0 - 1.0 Vin, INPUT VOLTAGE (V) VI, INPUT VOLTAGE (V) Figure 5. MC1489A Input Threshold Voltage Adjustment 5.0 4.0 3.0 2.0 1.0 0 - 3.0 - 2.0 - 1.0 0 VILH 1.0 VIHL 2.0 3.0 4.0 RT 5.0 k Vth 5.0 V RT Vin EO RT 11 k Vth - 5.0 V VIH , INPUT THRESHOLD VOLTAGE (Vdc) 6.0 VO , OUTPUT VOLTAGE (Vdc) 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 - 60 Figure 6. Input Threshold Voltage versus Temperature MC1489A VIH 1 RT Vth MC1489 VIH MC1489 VIL MC1489A VIL 0 + 60 + 120 VI, INPUT VOLTAGE (V) T, TEMPERATURE (C) Figure 7. Input Threshold versus Power Supply Voltage 2.0 INPUT THRESHOLD VOLTAGE (Vdc) VIH MC1489A 1.0 VIH MC1489 VIL MC1489 VIL MC1489A 0 3.0 4.0 5.0 6.0 VCC, POWER SUPPLY VOLTAGE (V) MOTOROLA ANALOG IC DEVICE DATA 3 MC1489, A APPLICATIONS INFORMATION General Information The Electronic Industries Association (EIA) has released the EIA-232D specification detailing the requirements for the interface between data processing equipment and data communications equipment. This standard specifies not only the number and type of interface leads, but also the voltage levels to be used. The MC1488 quad driver and its companion circuit, the MC1489 quad receiver, provide a complete interface system between DTL or TTL logic levels and the EIA-232D defined levels. The EIA-232D requirements as applied to receivers are discussed herein. The required input impedance is defined as between 3000 and 7000 for input voltages between 3.0 and 25 V in magnitude; and any voltage on the receiver input in an open circuit condition must be less than 2.0 V in magnitude. The MC1489 circuits meet these requirements with a maximum open circuit voltage of one VBE. The receiver shall detect a voltage between - 3.0 and - 25 V as a Logic "1" and inputs between 3.0 and 25 V as a Logic "0." On some interchange leads, an open circuit of power "OFF" condition (300 or more to ground) shall be decoded as an "OFF" condition or Logic "1." For this reason, the input hysteresis thresholds of the MC1489 circuits are all above ground. Thus an open or grounded input will cause the same output as a negative or Logic "1" input. Device Characteristics The MC1489 interface receivers have internal feedback from the second stage to the input stage providing input hysteresis for noise rejection. The MC1489 input has typical 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 1.15 V of 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. A resistor can be connected between this node and an external power supply. Figures 2, 4 and 5 illustrate the input threshold voltage shift possible through this technique. This response node can also be used for the filtering of high frequency, high energy noise pulses. Figures 8 and 9 show typical noise pulse rejection for external capacitors of various sizes. These two operations on the response node can be combined or used individually for many combinations of interfacing applications. The MC1489 circuits are particularly useful for interfacing between MOS circuits and MDTL/MTTL logic systems. In this application, the input threshold voltages are adjusted (with the appropriate supply and resistor values) to fall in the center of the MOS voltage logic levels (see Figure 10). The response node may also be used as the receiver input as long as the designer realizes that he may not drive this node with a low impedance source to a voltage greater than one diode above ground or less than one diode below ground. This feature is demonstrated in Figure 11 where two receivers are slaved to the same line that must still meet the EIA-232D impedance requirement. Figure 8. Typical Turn On Threshold versus Capacitance from Response Control Pin to GND 6 MC1489 5 E in , AMPLITUDE (V) E in , AMPLITUDE (V) 10 pF 4 3 2 1 10 100 1000 10,000 PW, INPUT PULSE WIDTH (ns) 100 pF 300 pF 500 pF 5 6 Figure 9. Typical Turn On Threshold versus Capacitance from Response Control Pin to GND MC1489A 12 pF 4 3 2 1 10 100 pF 300 pF 500 pF 100 1000 10,000 PW, INPUT PULSE WIDTH (ns) 4 MOTOROLA ANALOG IC DEVICE DATA MC1489, A Figure 10. Typical Translator Application - MOS to DTL or TTL + 5.0 Vdc R MOS Logic MC1489 DTL or TTL -VGG -VDD + 5.0 Vdc + 5.0 Vdc Figure 11. Typical Paralleling of Two MC1489, A Receivers to Meet EIA-232D VCC Response-Control Pin Input 8.0 k 1/2 MC1489 Output VCC Output Input 8.0 k Response-Control Pin MOTOROLA ANALOG IC DEVICE DATA 5 MC1489, A OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 646-06 ISSUE L 14 8 B 1 7 NOTES: 1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE POSITION AT SEATING PLANE AT MAXIMUM MATERIAL CONDITION. 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 4. ROUNDED CORNERS OPTIONAL. DIM A B C D F G H J K L M N INCHES MIN MAX 0.715 0.770 0.240 0.260 0.145 0.185 0.015 0.021 0.040 0.070 0.100 BSC 0.052 0.095 0.008 0.015 0.115 0.135 0.300 BSC 0_ 10_ 0.015 0.039 MILLIMETERS MIN MAX 18.16 19.56 6.10 6.60 3.69 4.69 0.38 0.53 1.02 1.78 2.54 BSC 1.32 2.41 0.20 0.38 2.92 3.43 7.62 BSC 0_ 10_ 0.39 1.01 A F C N H G D SEATING PLANE L J K M -A- 14 8 D SUFFIX PLASTIC PACKAGE CASE 751A-03 (SO-14) ISSUE F -B- 1 7 P 7 PL 0.25 (0.010) M B M NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. G C R X 45 _ F -T- SEATING PLANE D 14 PL 0.25 (0.010) M K TB S M A S J DIM A B C D F G J K M P R MILLIMETERS MIN MAX 8.55 8.75 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.337 0.344 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.228 0.244 0.010 0.019 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. 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 JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-81-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 6 MOTOROLA ANALOG IC DEVICE DATA MC1489/D *MC1489/D* |
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