DS36276 DS36276 FAILSAFE Multipoint Transceiver Literature Number: SNLS085A
DS36276 FAILSAFE Multipoint Transceiver General Description Features The DS36276 FAILSAFE Multipoint Transceiver is designed for use on bi-directional differential busses. It is compatible with existing TIA/EIA-485 transceivers, however, it offers an additional feature not supported by standard transceivers.
DS36276 Absolute Maximum Ratings (Note 1) Lead Temperature (Soldering 4 sec.) Max Junction Temperature ESD Rating (HBM, 1.5 kΩ, 100 pF) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) 7V 5.5V Input Voltage (DE, RE , and DI) Driver Output Voltage/ Receiver Input Voltage −10V to +15V Receiver Output Voltage (RO) 5.
DS36276 Electrical Characteristics (Notes 2, 4) (Continued) Over recommended Supply Voltage and Operating Temperature ranges, unless otherwise specified. Symbol Parameter Conditions Min Typ Max Units 2.0 VCC V GND 0.8 V 20 µA −100 µA DEVICE CHARACTERISTICS VIH High Level Input Voltage DE, RE, or DI VIL Low Level Input Voltage IIH High Level Input Current VIH = 2.4V IIL Low Level Input Current VIL = 0.4V VCL Input Clamp Voltage ICL = −18 mA −0.75 −1.
DS36276 Parameter Measurement Information DS011383-2 FIGURE 1. Driver VT1 and VOS Test Circuit DS011383-3 FIGURE 2. Driver VOH and VOL Test Circuit DS011383-4 FIGURE 3. Driver Short Circuit Test Circuit DS011383-5 FIGURE 4. Driver Differential Propagation Delay and Transition Time Test Circuit www.national.
DS36276 Parameter Measurement Information (Continued) DS011383-6 FIGURE 5. Driver Differential Propagation Delays and Transition Times DS011383-7 FIGURE 6. Driver Propagation Delay Test Circuit DS011383-8 FIGURE 7. Driver Propagation Delays DS011383-9 S1 to DO for DI = 3V S1 to DO for DI = 0V FIGURE 8. Driver TRl-STATE Test Circuit (tPZH, tPHZ) 5 www.national.
DS36276 Parameter Measurement Information (Continued) DS011383-10 FIGURE 9. Driver TRI-STATE Delays (tPZH, tPHZ) DS011383-11 S1 to DO for DI = 0V S1 to DO for DI = 3V FIGURE 10. Driver TRI-STATE Test Circuit (tPZL, tPLZ) DS011383-12 FIGURE 11. Driver TRl-STATE Delays (tPZL, tPLZ) DS011383-13 FIGURE 12. Receiver VOH and VOL DS011383-14 FIGURE 13. Receiver Propagation Delay Test Circuit www.national.
DS36276 Parameter Measurement Information (Continued) DS011383-15 FIGURE 14. Receiver Propagation Delays DS011383-16 FIGURE 15. Receiver TRI-STATE Delay Test Circuit DS011383-18 DS011383-17 S1 −1.5V S2 CLOSED S3 OPEN S1 1.5V S2 OPEN S3 CLOSED DS011383-20 DS011383-19 S1 1.5V S2 CLOSED S3 CLOSED S1 −1.5V S2 CLOSED S3 CLOSED Note 8: The input pulse is supplied by a generator having the following characteristics: f = 1.
DS36276 Typical Performance Characteristics Differential Output Voltage vs Output Current Differential Output Voltage vs Output Current DS011383-21 Driver VOH vs IOH vs VCC DS011383-22 Driver VOH vs IOH vs Temperature DS011383-23 Driver VOL vs IOL vs VCC DS011383-24 Driver VOL vs IOL vs Temperature DS011383-25 www.national.
(Continued) Receiver VOH vs IOH vs VCC Receiver VOH vs IOH vs Temperature DS011383-27 Receiver VOL vs IOL vs VCC DS36276 Typical Performance Characteristics DS011383-28 Receiver VOL vs IOL vs Temperature DS011383-29 Supply Currrent vs Supply Voltage DS011383-30 Supply Current vs Temperature DS011383-31 DS011383-32 9 www.national.
DS36276 Typical Performance Characteristics (Continued) Voltage Output vs Voltage Input (Hysteresis) DS011383-33 www.national.
DS36276 FAILSAFE Multipoint Transceiver Physical Dimensions inches (millimeters) unless otherwise noted Order Number DS36276M NS Package Number M08A 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.
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