SN54HC42, SN74HC42 4-LINE TO 10-LINE DECODERS (1 of 10)

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1 SNH, SNH -LINE TO -LINE EOERS ( of ) SLS EEMER REVISE MY Full ecoding of Input Logic ll Outputs re High for Invalid onditions lso for pplications as -Line to -Line ecoders Package Options Include Plastic Small-Outline () and eramic Flat (W) Packages, eramic hip arriers (FK), and Standard Plastic (N) and eramic (J) -mil IPs description These monolithic decimal decoders consist of eight inverters and ten -input NN gates. The inverters are connected in pairs to make input data available for decoding by the NN gates. Full decoding of valid input logic ensures that all inputs remain off for all invalid input conditions. The SNH is characterized for operation over the full military temperature range of to. The SNH is characterized for operation from to. SNH... J OR W PKGE SNH... OR N PKGE (TOP VIEW) N GN SNH... FK PKGE (TOP VIEW) N V GN N V N N No internal connection FUNTION TLE NO. INPUTS OUTPUTS L L L L L H H H H H H H H H L L L H H L H H H H H H H H L L H L H H L H H H H H H H L L H H H H H L H H H H H H L H L L H H H H L H H H H H L H L H H H H H H L H H H H L H H L H H H H H H L H H H L H H H H H H H H H H L H H H L L L H H H H H H H H L H H L L H H H H H H H H H H L H L H L H H H H H H H H H H H L H H H H H H H H H H H H Invalid H H L L H H H H H H H H H H H H L H H H H H H H H H H H H H H L H H H H H H H H H H H H H H H H H H H H H H H H Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PROUTION T information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. opyright, Texas Instruments Incorporated POST OFFIE OX LLS, TEXS

2 SNH, SNH -LINE TO -LINE EOERS ( of ) SLS EEMER REVISE MY logic symbol /E This symbol is in accordance with NSI/IEEE Std - and IE Publication -. Pin numbers shown are for the, J, N, and W packages. logic diagram (positive logic) Pin numbers shown are for the, J, N, and W packages. POST OFFIE OX LLS, TEXS

3 SNH, SNH -LINE TO -LINE EOERS ( of ) absolute maximum ratings over operating free-air temperature range SLS EEMER REVISE MY Supply voltage range, V V to V Input clamp current, I IK (V I < or V I > V ) (see Note ) ± m Output clamp current, I OK (V O < or V O > V ) (see Note ) ± m ontinuous output current, I O (V O = to V ) ± m ontinuous current through V or GN ± m Package thermal impedance, θ J (see Note ): package /W N package /W Storage temperature range, T stg to Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES:. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.. The package thermal impedance is calculated in accordance with JES, except for through-hole packages, which use a trace length of zero. recommended operating conditions SNH SNH UNIT MIN NOM MX MIN NOM MX V Supply voltage V V = V.. VIH High-level input voltage V =. V.. V V = V.. V = V.. VIL Low-level input voltage V =. V.. V V = V.. VI Input voltage V V V VO Output voltage V V V V = V tt Input transition (rise and fall) time V =. V ns V = V T Operating free-air temperature POST OFFIE OX LLS, TEXS

4 SNH, SNH -LINE TO -LINE EOERS ( of ) SLS EEMER REVISE MY electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PRMETER TEST ONITIONS V T = SNH SNH MIN TYP MX MIN MX MIN MX V.... IOH = µ. V.... VOH VI = VIH or VIL V.... V IOH = m. V.... IOH =. m V.... V.... IOL = µ. V.... VOL VI = VIH or VIL V.... V IOL = m. V.... IOL =. m V.... II VI = V or V ±. ± ± ± n I VI = V or, IO = V µ i V to V pf UNIT switching characteristics over recommended operating free-air temperature range, L = pf (unless otherwise noted) (see Figure ) PRMETER FROM (INPUT) TO (OUTPUT) V T = SNH SNH MIN TYP MX MIN MX MIN MX V tpd,,, or. V ns V V tt ny. V ns V UNIT operating characteristics, T = PRMETER TEST ONITIONS TYP UNIT pd Power dissipation capacitance No load pf POST OFFIE OX LLS, TEXS

5 SNH, SNH -LINE TO -LINE EOERS ( of ) PRMETER MESUREMENT INFORMTION SLS EEMER REVISE MY From Output Under Test Test Point L = pf (see Note ) Input % tplh % tphl V V LO IRUIT In-Phase Output % % % % tr VOH % % VOL tf Input % % % % tr V % % V tf Out-of-Phase Output tphl % % % % % tf tplh VOH % VOL tr VOLTGE WVEFORM INPUT RISE N FLL TIMES VOLTGE WVEFORMS PROPGTION ELY N OUTPUT TRNSITION TIMES NOTES:. L includes probe and test-fixture capacitance.. Phase relationships between waveforms were chosen arbitrarily. ll input pulses are supplied by generators having the following characteristics: PRR MHz, ZO = Ω, tr = ns, tf = ns.. The outputs are measured one at a time with one input transition per measurement.. tplh and tphl are the same as tpd. Figure. Load ircuit and Voltage Waveforms POST OFFIE OX LLS, TEXS

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