DS3587 NSC | Alldatasheet
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DS3587/DS3487 Quad TRI-STATE® Line Driver & General Description Features National's quad RS-422 driver features four independent ™ Four independent drivers drivers which comply with EIA Standards for the electrical om TRISTATE outputs characteristics of balanced voltage digital interface circuits. m Fast propagation times (typ 10 ns) The outputs are TRI-STATE structures which are forcedto@ —™ TTL compatible high impedance state when the appropriate output control 5y supply pin reaches a logic zero condition. All input pins are PNP ‘= Output rise and fall times less than 15 ns ogo Soro hos input loading for either logic one or i, compatible with DSB924 and MC3487 Block and Connection Diagrams Dual-In-Line Package wrura 2 1 vee NONANVERTING 5 5 roto ourruTsa INVERTING 2.8 CONTE: u 32 c/o CONTROL CONTROL Fa seys780-+ wu GND u u ANPUTC rurrste0-2 1 Top View Order Number DS3587J, DS3487J, DS3487M or DS3487N ‘See NS Package Number J16A, M16A or N16A Truth Table Non-Inverting Inverting Output Output H H H L L H L H x L z z = Low log stato H = High og state X = Inelovert Z = TALSTATE (tigh impedance) 1-75
3 Absolute Maximum Ratings (note 1)
If Military/Aerospace specified devices are required, ‘SO Package 1051 mW t | Please contact the National Semiconductor Sales Lead Temperature (Soldering, 4 seconds) 260°C ‘Office/Distributors for availability and specifications. 3 ‘Supply Voltage av Operating Conditions Input Voltage 5.5V Min Max Units Storage Temperature 65°C to + 150°C Supply Vottage, Voc Maximum Power Dissipation’ at 25°C Level A a vy Cavity Package 1509 mw _Molded DIP Package 1476 mW Ups plered Tr 55 a eS tgo'1 9 mW above 29°, Dera 30 pecage st mre aoe aoe Dsa487 0 +70 *c Electrical Characteristics (notes 2,3, 4 and 5) Symbol | ____Parameter | Gonditions [in| Typ | Max | Unite Vi | tnputtowvorage PT ow |v Von { inputtignvotage To || in [ inputtowcurent Tu = osv || «i; 200 | [vw=ssv [| 100 ua Vou | tnputciamp vonage [i= —tema ||| ts |v Vou [ outputtowvotage t= aoma | ||| Vou | Ouparignvotage | ton = -20ma sf es | || los [ Ouputshor-creutcurent [| ao || 140 | ma [Vvo=sev [fT [ 100 | na lore Output Leakage Current Power OFF | veorov Prozey fff | HA [vo=-o2sv [| =100 | na Wos-Vosi | Diteroncein OutputOreetvorage [|| | oe |v vr | Oitereniatououtvorage | to || VezW | OiterenceinDiforontal Ouptvotage | SSS rv lec Power Supply Gurrent [active | so [a0 | ma [rarstare | [a5 [60 [ma Switching Characteristics voc = sv, t, = 250 Symbot_| Parameter [Conatttone [in| typ | Max | Unie tema | inputtooupt Pt fs ne tow | inputtooupt tt tra | Diferentiatrantime [TT to | tn tun | ditorentatRiseting [| | to | toxz | ErabletoOuput [A= 200n,G.= sopr ||? | as | ne ez | Enabioto Output | Ay = 2000, = s0pr || ts | ase tz | EnavietoOuput = =.G.=s0pr.stopen | | 1 | 2s | ne tea___|_EnabiotoOutput_ [AL = 200,G.= sopr.szoven | [| 18 | 25 | ns ‘Note 1: “Absolute Maximum Ratings” are those valves beyond which the salty ofthe device cannot be guaranteed. They are not meant to imply hat he devices shoud be operates at these limits. The table of "Electrical Charactratca” provides conditions for actual davice operation, ‘Mote 2: Unioss otherwise apeciiod min/max limits apply across the O*C to +70°C range forthe OS3487. Al typical are given for Voc = SV and Ta = 25°C ‘Note 3: All curents into devce pins are positive, all curents out of device pins as negate. Al olages are referenced to ground unless otherwise apectiog ote 4: Only one output ata ume should be shorted. Note 6: Symbols and defnitons correspond to EIA RS-422, where appicablo. 1-76
FIGURE 1. Propagation Delays
6 Vou" OSV Voy
CO a Th aed as Input pulse: f = MHz, 50%: = 4 < 15 ns. FIGURE 2. TRI-STATE Enable and Disable Delays | FIGURE 3. Differential Rise and Fall Times