DS36950 NSC | Alldatasheet

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n Pinout for IPI interface n Compact 20-pin PLCC package n Meets EIA-485 standard for multipoint bus transmission n Greater than 60 mA source/sink n Thermal Shutdown Protection Pinout and Logic Diagram 01060201 Order Number DS36950 See NS Package Number V20A 01060202 TRI-STATE® is a registered trademark of National Semiconductor Corporation. July 1998 DS36950 Quad Differential Bus Transceiver © 2004 National Semiconductor Corporation DS010602 www.national.com

Absolute Maximum Ratings(Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 7V Control Input Voltage V CC + 0.5V Driver Input Voltage V CC + 0.5V Driver Output Voltage/Receiver Input Voltage −10V to +15V Receiver Output Voltage 5.5V Continuous Power Dissipation 25˚C V Package 1.73W Derate V Package 13.9 mW/˚C above 25˚C Storage Temp. Range −65˚C to +150˚C Lead Temp. (Soldering 4 Sec.) 260˚C Recommended Operating Conditions Supply Voltage, VCC 4.75V to 5.25V Bus Voltage −7V to +12V Operating Free Air Temp. (T A) 0˚C to +70˚C Electrical Characteristics(Note 2) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units DRIVER CHARACTERISTICS V ODL Differential Driver Output I L = 60 mA 1.5 1.9 V Voltage (Full Load) V CM =0 V VOD Differential Driver Output R L = 100Ω (EIA-422) 2.0 3.5 V Voltage (Termination Load) R L =5 4Ω (EIA-485) 1.5 3.2 V ∆IVODI Change in Magnitude of Driver R L =5 4Ω or 100Ω Differential Output Voltage for (Note 4) ( Figure 1) 0.2 V Complementary Output States (EIA-485) VOC Driver Common Mode Output R L =5 4Ω 3.0 V Voltage (Note 5) ( Figure 1) (EIA-485) ∆IVOCI Change in Magnitude of Common (Note 4) ( Figure 1) 0.2 V Mode Output Voltage (EIA-485) VOH Output Voltage HIGH I OH = −55 mA 2.7 3.2 V VOL Output Voltage LOW I OL = 55 mA 1.4 1.7 V VIH Input Voltage HIGH 2.0 V VIL Input Voltage LOW 0.8 V VCL Input Clamp Voltage I = −18 mA −1.5 V IIH Input High Current V I = 2.4V (Note 3) 20 µA IIL Input Low Current V I = 0.4V (Note 3) −20 µA IOSC Driver Short-Circuit V O = −7V (EIA-485) −130 −250 mA Output Current V O = 0V (EIA-422) −90 −150 mA (Note 9) V O = +12V (EIA-485) 130 250 mA RECEIVER CHARACTERISTICS I OSR Short Circuit Output Current V O = 0V (Note 9) −15 −28 −75 mA IOZ TRI-STATE® Output Current V O = 0.4V to 2.4V 20 µA VOH Output Voltage High V ID = 0.20V, IOH = −0.4 mA 2.4 3.0 V VOL Output Voltage Low V ID = −0.20V, I OL = 4 mA 0.35 0.5 V VTH Differential Input High V O =V OH,I O = −0.4 mA 0.03 0.20 V Threshold Voltage (EIA-422/485) VTL Differential Input Low V O =V OL,I O = 4.0 mA −0.20 −0.03 V Threshold Voltage (Note 6) (EIA-422/485) VHST Hysteresis (Note 7) V CM =0 V 3 5 6 0 m V DRIVER AND RECEIVER CHARACTERISTICS V IH Enable Input Voltage High 2.0 V VIL Enable Input Voltage Low 0.8 V DS36950 www.national.com 2

Electrical Characteristics(Note 2) (Continued) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units DRIVER AND RECEIVER CHARACTERISTICS V CL Enable Input Clamp Voltage I = −18 mA −1.5 V IIN Line Input Current Other Input = 0V V I = +12V 0.5 1 mA (Note 8) V I = −7V −0.45 −0.8 mA IIH Enable Input Current High V OH = 2.4V RE4 or DE 20 µA REC 60 µA IIL Enable Input Current Low V OL = 0.4V RE4 or DE −20 µA REC −60 µA ICC Supply Current (Note 10) No Load, Outputs Enabled 75 90 mA ICCZ Supply Current (Note 10) No Load, Outputs Disabled 50 70 mA Switching Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Conditions Min Typ Max Units DRIVER SINGLE-ENDED CHARACTERISTICS t PZH RL = 110Ω (Figure 4)3 5 4 0 n s tPZL RL = 110Ω (Figure 5)2 5 4 0 n s tPHZ RL = 110Ω (Figure 4)1 5 2 5 n s tPLZ RL = 110Ω (Figure 5)3 5 4 0 n s DRIVER DIFFERENTIAL CHARACTERISTICS t R,t F Rise & Fall Time R L =5 4Ω 13 16 ns tPLHD Differential Propagation C L = 50 pF 9 15 19 ns tPHLD Delays (Note 15) C D = 15 pF 9 15 19 ns tSKD |tPLHD −t PHLD| Differential Skew ( Figures 3, 8)3 6 n s RECEIVER CHARACTERISTICS t PLHD Differential Propagation Delays 9 14 19 ns tPHLD CL = 15 pF, V CM = 1.5V (Figure 6) 9 14 19 ns tSKD |tPLHD −t PHLD| Differential Receiver Skew 1 3 ns tZH Output Enable Time to High Level 15 22 ns tZL Output Enable Time to Low Level C L =1 5p F 2 0 3 0 n s tHZ Output Disable Time from High Level ( Figure 7)1 0 1 7 n s tLZ Output Disable Time from Low Level 17 25 ns Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The tables of “Electrical Characteristics” specify conditions for device operation. Note 2: Current into device pins is define as positive. Current out of device pins is defined as negative. All voltages are referenced to ground unless otherwi se specified. Note 3: IIH and IIL includes driver input current and receiver TRI-STATE leakage current. Note 4: ∆IVODI and ∆IVOCI are changes in magnitude of V OD and VOC, respectively, that occur when the input changes state. Note 5: In EIA Standards EIA-422 and EIA-485, V OC, which is the average of the two output voltages with respect to ground, is called output offset voltage, V OS. Note 6: Threshold parameter limits specified as an algebraic value rather than by magnitude. Note 7: Hysteresis defined as V HST =V TH −V TL. Note 8: IIN includes the receiver input current and driver TRI-STATE leakage current. Note 9: Short one output at a time. Note 10: Total package supply current. Note 11: All typicals are given for V CC = 5.0V and T A = 25˚C. DS36950 www.national.com3

FIGURE 6. Receiver Differential Propagation Delay Timing

FIGURE 7. Receiver Enable and Disable Timing

Note 13: CL includes probe and stray capacitance. Note 14: Diodes are 1N916 or equivalent. measurements to the 20% and 80% levels. FIGURE 8. Propagation Delay Timing for Calculation of Driver Differential Propagation Delays

Typical Performance Characteristics (Continued) Driver Transition Time vs Temperature Driver Transition Time vs VCC 01060225 01060227 Driver VOH vs IOH vs Temperature Driver VOH vs IOH vs VCC 01060226 01060228 Driver VOL vs IOL vs Temperature Driver VOL vs IOL vs VCC 01060229 01060230 DS36950 www.national.com9

Typical Performance Characteristics (Continued) Driver VOD vs IO vs Temperature Driver VOD vs IO vs VCC 01060231 01060232 Receiver Differential Propagation Delay vs Temperature Receiver Differential Propagation Delay vs VCC 01060233 01060234 Receiver VOH vs IOH vs Temperature Receiver VOH vs IOH vs VCC 01060235 01060236 DS36950 www.national.com 10

Typical Performance Characteristics (Continued) Receiver VOL vs IOL vs Temperature Receiver VOL vs IOL vs VCC 01060237 01060238 Supply Current vs Temperature Power Supply Current vs Power Supply Voltage 01060239 01060240 Driver ICC vs Switching Frequency 01060241 DS36950 www.national.com11

Physical Dimensions inches (millimeters) unless otherwise noted Order Number DS36950 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. For the most current product information visit us at www.national.com. LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. National Semiconductor Americas Customer Support Center Email: new.feedback@nsc.com Tel: 1-800-272-9959 National Semiconductor Europe Customer Support Center Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Support Center Email: ap.support@nsc.com National Semiconductor Japan Customer Support Center Fax: 81-3-5639-7507 Email: jpn.feedback@nsc.com Tel: 81-3-5639-7560 www.national.com DS36950 Quad Differential Bus Transceiver