DS8935

DS8935 NSC | Alldatasheet

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n Single chip solution for LocalTalk port n Two driver/three receivers per package n Wide common mode range:±10V n ±200 mV receiver sensitivity n 70 mV typical receiver input hysteresis n Available in SOIC packaging n Failsafe receiver for open inputs Connection Diagram Functional Diagram TRI-STATE® is a registered trademark of National Semiconductor Corporation. LocalTalk™ is a trademark of Apple Computer, Inc. Dual-In-Line Package DS012066-1 Order Number DS8935WM See NS Package Number M20B DS012066-2 February 1996 DS8935 LocalTalk Dual Driver/Triple Receiver © 1998 National Semiconductor Corporation DS012066 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 (V CC ) +7V Supply Voltage (VEE ) −7V Enable Input Voltage (DEN1 , RE, RE ) +7V Driver Input Voltage (DIN) +7V Driver Output Voltage (Power Off: DOUT ) ±15V Receiver Input Voltage (VID:R IN+−R IN−) ±25V Receiver Input Voltage (VCM :( RIN++R IN−)/2) ±25V Receiver Input Voltage (Input to GND: RIN) ±25V Receiver Output Voltage (ROUT ) +5.5V Maximum Package Power Dissipation@+25˚C M Package 1.34W Derate M Package 10.7 mW/˚C above +25˚C Storage Temperature Range −65˚C to +150˚C Lead Temperature Range (Soldering, 4 Sec.) +260˚C This device does not meet 2000V ESD Rating (Note 8) Recommended Operating Conditions Min Typ Max Units Supply Voltage (VCC ) +4.75 +5.0 +5.25 V Supply Voltage (VEE ) −4.75 −5.0 −5.25 V Operating Free Air Temperature (TA) 0 25 70 ˚C Electrical Characteristics(Notes 2, 3) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Pin Min Typ Max Units DIFFERENTIAL DRIVER CHARACTERISTICS V OD Output Differential Voltage R L = ∞ or RL = 3.9 kΩ D OUT +, D OUT − ±7 ±9.0 ±10 V VO Output Voltage R L = ∞ or RL = 3.9 kΩ ±4.5 ±5.25 V VOD1 Output Differential Voltage R L = 100Ω ,Figure 1 4.0 6.4 |V| VSS |VOD1 −V OD1 | 8.0 12.8 |V| ΔVOD1 Output Unbalance 0.02 0.4 V VOS Offset Voltage 03 V ΔVOS Offset Unbalance 0.05 0.4 V VOD2 Output Differential Voltage RL = 140Ω ,Figure 1 6.0 7.0 |V| IOZD TRI-STATE ® Leakage Current V CC = 5.25V V O = +10V 2 150 µA VEE = −5.25V V O = +6V 1 100 µA VO = −6V −1 −100 µA VO = −10V −2 −150 µA SINGLE ENDED DRIVER CHARACTERISTICS V O Output Voltage (No Load) R L = ∞ or RL = 3.9 kΩ ,Figure 2 D OUT − 4 4.4 6 |V| VT Output Voltage R L = 3k Ω ,Figure 2 3.7 4.3 |V| R L = 450Ω ,Figure 2 3.6 4.1 |V| ΔVT Output Unbalance 0.02 0.4 V DRIVER CHARACTERISTICS V CM Common Mode Range Power Off, or D1 Disabled D OUT +, D OUT − ±10 V IOSD Short Circuit Current V O = 0V, Sourcing Current −80 −150 mA VO = 0V, Sinking Current 80 150 mA IOXD Power-Off Leakage Current V O = +10V 2 150 µA (VCC = VEE = 0V) V O = +6V 1 100 µA VO = −6V −1 −100 µA VO = −10V −2 −150 µA www.national.com 2

Electrical Characteristics(Notes 2, 3) (Continued) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Pin Min Typ Max Units RECEIVER CHARACTERISTICS V TH Input Threshold −7V ≤ VCM ≤ +7V R IN+, R IN− −200 ±35 +200 mV VHY Hysteresis V CM = 0V 70 mV R IN Input Resistance −10V ≤ VCM ≤ +10V 6.0 8.5 k Ω IIN Input Current (Other Input= 0V, V IN = +10V 3.25 mA Power On, or VCC = VEE = 0V) V IN = +3V 0 1.50 mA VIN = −3V 0 −1.50 mA VIN = −10V −3.25 mA VIB Input Balance Test R S = 500Ω (R2 only) ±400 mV VOH High Level Output Voltage I OH = −400 µA, R OUT 2.7 4.2 V VIN = +200 mV IOH = −400 µA, VIN = OPEN 2.7 4.2 V VOL Low Level Output Voltage I OL = 8.0 mA, VIN = −200 mV 0.3 0.5 V IOSR Short Circuit Current V O = 0V −15 −34 −85 mA IOZR TRI-STATE Output Current V CC = Max V O = 2.4V 0 +20 µA VO = 0.4V 0 −20 µA DEVICE CHARACTERISTICS V IH High Level Input Voltage D IN, D EN1 , RE, RE 2.0 V VIL Low Level Input Voltage 0.8 V IIH High Level Input Current V IN = 2.4V 1 40 µA IIL Low Level Input Current V IN = 0.4V −10 −200 µA VCL Input Clamp Voltage I IN = −12 mA −1.5 V ICC Power Supply Current No Load D1 Enabled or Disabled VCC 40 65 mA IEE VEE −5 −15 mA Switching Characteristics(Notes 4, 5) Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units DIFFERENTIAL DRIVER CHARACTERISTICS t PHLD Differential Propagation Delay High to Low RL = 100Ω ,C L = 500 pF, (Figures 3, 4) C 1 = C 2 = 50 pF 70 134 350 ns tPLHD Differential Propagation Delay Low to High 70 141 350 ns tSKD Differential Skew |tPHLD −tPLHD | 7 50 ns tr Rise Time 50 140 300 ns tf Fall Time 50 140 300 ns tPHZ Disable Time High to Z R L = 100Ω ,C L = 500 pF (Figures 7, 8) 300 600 ns tPLZ Disable Time Low to Z 300 600 ns tPZH Enable Time Z to High 160 350 ns tPZL Enable Time Z to Low 160 350 ns SINGLE ENDED DRIVER CHARACTERISTICS t PHL Propagation Delay High to Low R L = 450Ω ,C L = 500 pF (Figures 5, 6) 70 120 350 ns tPLH Propagation Delay Low to High 70 150 350 ns tSK Skew, |tPHL −tPLH 30 70 ns tr Rise Time 50 100 300 ns tf Fall Time 20 50 300 ns RECEIVER CHARACTERISTICS t PHL Propagation Delay High to Low C L = 15 pF (Figures 9, 10) 10 33 75 ns tPLH Propagation Delay Low to High 10 30 75 ns tSK Skew, |tPHL −tPLH | 32 0n s www.national.com3

Switching Characteristics(Notes 4, 5) (Continued) Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units RECEIVER CHARACTERISTICS t HZ Disable Time High to Z C L = 15 pF (Figures 9, 11) 20 75 ns tLZ Disable Time Low to Z 20 75 ns tZH Enable Time Z to High 20 75 ns tZL Enable Time Z to Low 20 75 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 table of Electrical Characteristics specifies conditions of device operation. Note 2:Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground except VOD ,V OD1 , VOD2 , and VSS . Note 3:All typicals are given for: VCC = +5.0V, VEE = −5.0V, TA = +25˚C unless otherwise specified. Truth Tables Driver (D1) Inputs Outputs D EN1 D IN1 D OUT1 +D OUT1 − HX Z Z LL L H LH H L Receiver (1) RE RE Input Output R IN1−R OUT1

01 X Z

Any Other ≤−200 mV H Combination ≥+200 mV L Open † H Driver (D2) Input Output D IN2 D OUT2 − LH HL Receiver (2) RE RE Inputs Output R IN2+–R IN2−R OUT2 Any Other ≤−200 mV L Combination ≥+200 mV H Open † H Receiver (3) RE RE Input Output R IN3+R OUT3 Any Other ≤−200 mV L Combination ≥+200 mV H Open † H H = Logic High Level (Steady State) L = Logic Low Level (Steady State) X = Irrelevant (Any Input) Z = Off State (TRI-STATE, High Impedance) †OPEN = Non-Terminated www.national.com 4

TABLE 1. Device Pin Descriptions

19 D OUT + Non-Inverting Driver Output Pin

12 R EN Active High Receiver Enable

8 GND Ground Pin

20 V CC Positive Power Supply Pin, +5V±5%

swings of approximately 0V–5V. FIGURE 13. Typical Driver Output Waveforms

Physical Dimensionsinches (millimeters) unless otherwise noted LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or sys- tems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose fail- ure 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 in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 20-Lead (0.300" Wide) Molded Small Outline Package, JEDEC Order Number DS8935WM DS8935 LocalTalk Dual Driver/Triple Receiver 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.