AM71LS98 AMD | Alldatasheet
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Technical content
Am71/81LS95 « Am71/81LS96 Am71/81LS97 * Am71/81LS98 Three-State Octal Buffers DISTINCTIVE CHARACTERISTICS GENERAL DESCRIPTION ‘© Three-state outputs drive bus line directly The Am71/81LS95, Am71/81LS96, Am71/81LS97 and Am71/ © Typical propagation delay 81LS98 are octal buffers fabricated using Advanced Low- Am71/81LS95, Am71/81LS97 13ns Power Schottky technology. The 20-pin package provides im- ‘Am71/81LS96, Am71/81LS9810ns proved printed circuit board density for use in memory ad- ‘© Typical power dissipation dress and clock driver applications. ‘Am71/81LS95, Am71/81LS97_ BOmW ‘The Am71/81LS95 and Am71/81LS97 present true data at the ‘Am71/81L898, Am71/B1LS88_— GEmW outputs, while the Am71/81LS96 and Am71/81LS98 are invert- © PNP inputs reduce DC loading on bus lines ing. The Am71/81LS95 and Am71/81LS96 have a common ¢ Am71/81LS96 and Am71/81LS9B8 are inverting: ‘enable for all eight buffers with access through a 2-input NOR, Am71/81LS96 and Am? 1/81LSQ7 are non-inverting gate. The Am71/81LS97 and Am71/81LS9B octal butfers have © 20-pin hermetic and molded DIP packages four buffers enabled from one common line, and the other four © 100% product assurance testing to MIL-STD-863 buffers enabled from another common line. In all cases the requirements outputs are placed in the three-state condition by applying a high logic level to the enable pins. All parts feature low current PNP inputs. LOGIC DIAGRAMS ‘Am71/81LS95 ‘Am71/81LS96 ‘Am71/81LS97 Am71/81LS98 A, " a ” ” noms Loo 6 % A ‘ a % Ee ae os Py wom % bs % as % z, te! & a, pe & Sam caso ies90 be ‘ m ‘
1 WPUTS (ONPUTS | oureur |
CONNECTION DIAGRAMS — Top Views ‘Am71/81LS95 Am71/81LS96 Am71/81LS97 Am71/81LS98 ach? mf vec ade vee ade mh ec ade wD vee ace »be ace whe ade whe ade ai wp eps wef was “Cl abs wes aba acs vbw atte upy ace vB ace rpw woe ube wes whe us ups wets whe ace spy ace wp ace spr ace spe “qr npr wt ups wd ups wr wba ace ab ace ap ace apie ace ap weds nba ue wba ude aba us aps oro aps ovo] nbw ono Cf wp ono fro ubin cass Leave ica cave 4-159
MAXIMUM RATINGS above which the useful life may be impaired Storage Temperature —65°C to + 150°C Temperature (Ambient) Under Bias ee 55°C to +125°C Supply Voltage to Ground Potential ee —0.8V to +7.0V DC Vottage Applied to Outputs for HIGH Output State =0.5V to +Vec max. DC Input Voltage ~0.5V to +7.0V DC Output Current ee 150mA DC Input Current —30mA to +5.0mA
ELECTRICAL CHARACTERISTICS
The Following Conditions Apply Unless Otherwise Specified Am71/81LS96 DC CHARACTERISTICS OVER OPERATING RANGE Am71/81LS97 Am71/81LS98 Typ. Parameters Description Test Conditions Min. (Note 1) Max. Units Vie tewtovtipt otee a ‘on "woh Level Ouput Curent b+ + [aa] = | E Veo = Min, Viy = 20V [ cow, Foe= some ox Von | Hon tow! ou votage | Yeo” [low= 26a 27 [| vets ne ei Voo=Min.Vin = 20V |_GOML lo. = 16mA pos) [voc _[tmumcumavme | YSSoer 8 Figs ame [oa Ott-State (High-Impedance | Voc = Max. Viq =20V | Vo = 04V jf [| 20 | torr) | Sey Cuse cuen| Vai ony [yowzny input Current at Maximum . . sree erm meecics [in [Wontew! npsicurent | Vec=Monnaw || | hie Input Current Voc = Max. | Both G inputs ato.4v [Vi = 0.4V re er Show Greuit Output Curent | Voc =Max.(Note2) mA _ ‘Am71/81LS95, Am71/81LS97_ _ | 26 | vey Caren oc = Mak: | Am7 vent 596, Am? VetLS9@ [ea Notes: 1, All typical values are at Voc = 5.0V, Ta = 25°C. 2. Not more than output should be shorted at a time, and duration of the short circuit should not exceed one second. SWITCHING CHARACTERISTICS Vcc = 5.0V, Ty = 25°C Am71/81LS95_ Am71/81LS96- ‘Am71/81LS97 Am71/81LS98 Propagation Delay Time, Propagation Delay Time, tPHL | High-to-Low Level Output Oy = 15pF, Ry = 2k 1% | 22 v7 Tan | Oued Eel Teo wh Lael — [pe p= Poa [a Ts tac | Opa rae Tne wow eve | a ‘uz | Output Disable Time trom HIGH Level | [ [wf ao [fe | | rsable Time won = Sp, Ry = 2k ‘uz [Opi Dani Tine tom Low ew Pheer Te 4-160
SWITCHING CHARACTERISTICS TEST CONDITIONS. LOAD CIRCUIT FOR VOLTAGE WAVEFORMS THREE-STATE OUTPUTS ENABLE AND DISABLE TIMES, THREE-STATE OUTPUTS oureur aw Pic bal WAVEFORM 1 * =v bas, ° FROM OUTPUT Sos \\oav |cLoseo! =15v, UNDER TEST [2 PEN ~— \\ nore an we Fa a none sroren Te Et a ay uae + ¢ vce Notes: 4. Waveform 1 ifr an ov with internal contions such that the output i ow exces when dsabed by the output conto 2 Wavnfor 2s for on output ih internal cnditon suc tat the output igh except hen cable Byte output contol 3: Inthe exaraples above, he pate relationships betwen inputs and outputs have been chosen arian 4: ful gneratr characterise’ PAR 1MHe, Zour ~ 50, = 150s, < Ot 5. nen massing teu and spHLsitehes Sy and 8p ae close.
APPLICATIONS
Am71/81LS96 USED AS SYSTEM AND/OR MEMORY BUS DRIVER me To VIVANANAVANANAK ‘SYSTEM ANOIOR MEMORY ADORESS BUS uc-e7 INDEPENDENT 4-BIT BUS DRIVERS/RECEIVERS IN A SINGLE PACKAGE ARTO NSIS. i” qT ournut fnow | S| eases LNG vcs 4-161
ORDERING INFORMATION
Package ‘Temperature Order Number Type Range ‘Am71/81LS95 _Am71/81LS96__Am71/81LS97__ Am71/81LS98 Molded DIP Oto +70 DMBILS95N DMBILS96N _DM@iLS97N DMB1LS98N Hermetic DIP «O'S to. 470°C +=: DMBTLSG5J-—-DMB1LS96J DMBILS97J — DMB1LS98J Hermetic DIP 55°C to +125°C - DM71LS95J) —-DM71LS96J —- DM71LS97J — DM71LS98J Dice O°C to +70°C -—« AMBILS95X AMBILS9EX AMBILS97X —_AMB1LS98X 4-162