DS3896

DS3896 NSC | Alldatasheet

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n 8 bit DS3896 transceiver provides high package density n 4 bit DS3897 transceiver provides separate driver input and receiver output pins n BTL compatible n Less than 5 pF output capacitance for minimal bus loading n 1 Volt bus signal swing reduces power consumption n Trapezoidal driver waveforms (tr,tf ≅ 6 ns typical) reduce noise coupling to adjacent lines n Temperature insensitive receiver thresholds track the bus logic high level to maximize noise immunity in both high and low states n Guaranteed A.C. specifications on noise immunity and propagation delay over the specified temperature and supply voltage range n Open collector driver output allows wire-or connection n Advanced low power schottky technology n Glitch free power up/down protection on driver and receiver outputs n TTL compatible driver and control inputs and receiver outputs Logic Diagrams Trapezoidal™ is a trademark of National Semiconductor Corporation. DS3896N, M DS008510-1 DS3897N, M DS008510-2 Order Numbers DS3896M, DS3896N, DS3897M or DS3897N See NS Package Number M20B or N20A January 1996 DS3896/DS3897 BTL Trapezoidal Transceivers © 1999 National Semiconductor Corporation DS008510 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 6V Control Input Voltage 5.5V Driver Input and Receiver Output 5.5V Receiver Input and Driver Output 2.5V Power Dissipation at 70˚C N Package 1480 mW M Package TBD mW Storage Temperature Range −65˚C to +150˚C Lead Temperature (Soldering, 4 sec.) 260˚C Recommended Operating Conditions Min Max Units Supply Voltage, VCC 4.75 5.25 V Bus Termination Voltage 1.90 2.10 V Operating Free Air Temperature 0 70 ˚C Electrical Characteristics:(Notes 2, 3) (0˚C ≤ TA ≤ 70˚C, 4.75V≤ VCC ≤ 5.25V unless otherwise specified) Symbol Parameter Conditions Min Typ Max Units Driver and Control Inputs: (An, Dn, En, CD, T/R , RE , TE ) VIH Logical “1” Input Voltage 2.0 V VIL Logical “0” Input Voltage 0.8 V II Logical “1” Input Current An = Dn = En = VCC 1m A IIH Logical “1” Input Current An = Dn = En = 2.4V 40 µA IIHC Logical “1” Input Current CD = T/R = RE = TE = 2.4V 80 µA IIL Logical “0” Input Current An = Dn = En = 0.4V −1 −1.6 mA IILC Logical “0” Input Current CD = T/R = RE = TE = 0.4V −180 −400 µA VCL Input Diode Clamp Voltage Iclamp = −12 mA −0.9 −1.5 V Driver Output/Receiver Input: (Bn) V OLB Low Level Bus Voltage An = Dn = En = T/R = 2V, VL= 2V 0.75 1.0 1.2 V RL = 18.5Ω ,C D = TE = 0.8V (Figure 1) IIHB Maximum Bus Current (Power On) An = Dn = En = 0.8V, VCC = 5.25V 10 100 µA Bn = 2V IILB Maximum Bus Current (Power Off) An= Dn = En = 0.8V, VCC = 0V 100 µA Bn = 2V VTH Receiver Input Threshold V CC = 5V 1.47 1.55 1.62 V Receiver Output: (An, Rn) V OH Logical “1” Output Voltage Bn = 1.2V, IOH = −400 µA 2.4 3.2 V CD = T/R = RE = 0.8V VOL Logical “0” Output Voltage Bn = 2V, IOL = 16 mA 0.35 0.5 V CD = T/R = RE = 0.8V IOS Output Short Circuit Current Bn = 1.2V −20 −70 −100 mA CD = T/R = RE = 0.8V ICC Supply Current (DS3896) V CC = 5.25V 90 135 mA ICC Supply Current (DS3897) V CC = 5.25V 50 80 mA Note 1:“Absolute maximum ratings” are those beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the device should be operated at these limits. The table of “Electrical Characteristic” provide conditions for actual device operation. Note 2:All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. Note 3:All typicals are given for VCC = 5V and Ta = 25˚C. DS3896 Switching Characteristics (0˚C ≤ TA ≤ 70˚C, 4.75V≤ VCC ≤ 5.25V unless otherwise specified) Symbol Parameter Conditions Min Typ Max Units Driver: tDLH An to Bn CD = 0.8V, T/R= 2.0V, VL= 2V 5 9 15 ns tDHL (Figure 2)5 9 1 5 n s www.national.com 2

DS3896 Switching Characteristics(Continued) (0˚C ≤ TA ≤ 70˚C, 4.75V≤ VCC ≤ 5.25V unless otherwise specified) Symbol Parameter Conditions Min Typ Max Units Driver: tDLHC CD to Bn An = T/R = 2.0V, VL= 2V 51 0 1 8 n s tDHLC (Figure 2) 5 12 20 ns tDLHT T/R to Bn VCI = An, VC = 5V, (Figure 5) 5 15 25 ns tDHLT CD = 0.8V, RC= 390Ω ,C L= 30 pF 5 22 35 ns RL1 = 18Ω , RL2= NC, VL = 2V tR Driver Output Rise Time CD = 0.8V, T/R= 2V, VL= 2V 3 6 10 ns tF Driver Output Fall Time ( Figure 2)3 6 1 0 n s Receiver: t RLH Bn to An CD = 0.8V, T/R= 0.8V 51 2 1 8 n s tRHL (Figure 3) 5 10 18 ns tRLZC CD to An Bn = 2.0V, T/R= 0.8V, CL= 5p F 51 0 1 8 n s RL1 = 390Ω , RL2= NC, VL = 5V ( Figure 4) tRZLC Bn = 2.0V, T/R= 0.8V, CL= 30 pF 5 8 15 ns RL1 = 390Ω , RL2= 1.6k, VL= 5V ( Figure 4) tRHZC Bn = 0.8V, T/R= 0.8V, VL= 0V, 248 n s RL1 = 390Ω , RL2= NC, CL = 5p F (Figure 4) tRZHC Bn = 0.8V, T/R= 0.8V, VL= 0V, 3 7 12 ns RL1 = NC, RL2 = 1.6k, CL= 30 pF (Figure 4) tRLZT T/R to An VCI = Bn, VC = 2V, RC = 18Ω , 5 10 18 ns CD = 0.8V, VL= 5V, RL1 = 390Ω , RL2 = NC, CL = 5p F (Figure 5) tRZLT VCI = Bn, VC = 2V, RC = 18Ω , 1 42 44 0 n s CD = 0.8V, VL= 5V, RL1 = 390Ω , RL2 = 1.6k, CL= 30 pF (Figure 5) tRHZT VCI = Bn, VC = 0V, RC = 18Ω , 248 n s CD = 0.8V, VL= 0V, RL1 = 390Ω , RL2 = NC, CL = 5p F (Figure 5) tRZHT VCI = Bn, VC = 0V, RC = 18Ω ,2 8 1 5 n s CD = 0.8V, VL= 0V, RL1 = NC RL2 = 1.6k, CL= 30 pF (Figure 5) tNR Receiver Noise ( Figure 6)3 6 n s Rejection Pulse Width Note:NC means open DS3897 Switching Characteristics (0˚C ≤ TA ≤ 70˚C, 4.75V≤ VCC ≤ 5.25V unless otherwise specified) Symbol Parameter Conditions Min Typ Max Units Driver: t DLH Dn, En to Bn TE = 0.8V, RE= 2.0V, VL= 2V 5 9 15 ns tDHL (Figure 2)5 9 1 5 n s tDLHT TE to Bn An = RE = 2.0V, VL= 2V, (Figure 2) 51 0 1 8 n s tDHLT RC = 390Ω , VCI= An, VC = 5V, CL = 30 pF 5 12 20 ns RL1 = 18Ω , RL2= NC, VL = 2V ( Figure 5) tR Driver Output Rise Time CD = 0.8V, T/R= 2V, VL= 2V 3 6 10 ns tF Driver Output Fall Time ( Figure 2)3 6 1 0 n s Receiver: t RLH Bn to Rn TE = 2.0V, RE= 0.8V (Figure 3) 51 0 1 8 n s www.national.com3

FIGURE 7. Driver Plus Receiver Delays

Physical Dimensionsinches (millimeters) unless otherwise noted 20-Lead (0.300" Wide) Molded Small Outline Package, JEDEC (M) Order Number DS3896M or DS2897M Molded Dual-In-Line Package (N) Order Number DS3896N or DS3897N www.national.com 8

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. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.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: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com DS3896/DS3897 BTL Trapezoidal Transceivers 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.