元器件交易网www.cecb2b.comMC14028BBCD-To-DecimalDecoderBinary-To-OctalDecoderThe MC14028B decoder is constructed so that an 8421 BCD codeon the four inputs provides a decimal (one–of–ten) decoded output,while a 3–bit binary input provides a decoded octal (one–of–eight)code output with D forced to a logic “0”. Expanded decoding such asbinary–to–hexadecimal (one–of–16), etc., can be achieved by usingother MC14028B devices. The part is useful for code conversion,address decoding, memory selection control, demultiplexing, orreadout decoding.http://onsemi.comMARKINGDIAGRAMS16PDIP–16P SUFFIXCASE 648MC14028BCPAWLYYWW116SOIC–16D SUFFIXCASE 751B114028BAWLYWW•Diode Protection on All Inputs•Supply Voltage Range = 3.0 Vdc to 18 Vdc•Capable of Driving Two Low–power TTL Loads or One Low–power•••Schottky TTL Load Over the Rated Temperature RangePositive Logic DesignLow Outputs on All Illegal Input CombinationsSimilar to CD4028B.MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 2.)SymbolVDDVin, VoutIin, IoutPDTATstgTLParameterDC Supply Voltage RangeInput or Output Voltage Range(DC or Transient)Input or Output Current(DC or Transient) per PinPower Dissipation,per Package (Note 3.)Ambient Temperature RangeStorage Temperature RangeLead Temperature(8–Second Soldering)Value–0.5 to +18.0–0.5 to VDD + 0.5±10500–55 to +125–65 to +150260UnitVVmAmW°C°C°CSOEIAJ–16F SUFFIXCASE 96616MC14028BAWLYWW1A= Assembly LocationWL or L= Wafer LotYY or Y= YearWW or W= Work WeekORDERING INFORMATIONDeviceMC14028BCPMC14028BDMC14028BDR2MC14028BFMC14028BFELPackagePDIP–16SOIC–16SOIC–16SOEIAJ–16SOEIAJ–16Shipping2000/Box2400/Box2500/Tape & ReelSee Note 1.See Note 1.2.Maximum Ratings are those values beyond which damage to the devicemay occur.3.Temperature Derating:Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_CThis device contains protection circuitry to guard against damage due to highstatic voltages or electric fields. However, precautions must be taken to avoidapplications of any voltage higher than maximum rated voltages to thishigh–impedance circuit. For proper operation, Vin and Vout should be constrainedto the range VSS v (Vin or Vout) v VDD.Unused inputs must always be tied to an appropriate logic voltage level (e.g.,either VSS or VDD). Unused outputs must be left open.1.For ordering information on the EIAJ version ofthe SOIC packages, please contact your localON Semiconductor representative.© Semiconductor Components Industries, LLC, 20001March, 2000 – Rev. 3Publication Order Number:MC14028B/D元器件交易网www.cecb2b.comMC14028BPIN ASSIGNMENTQ4Q2Q0Q7Q9Q5Q6VSS12345678161514131211109VDDQ3Q1BCDAQ8TRUTH TABLEDCBAQ9Q8Q7Q6Q5Q4Q3Q2Q1Q000000000111111110000111100001111001100110011001101010101010101010000000001000000000000001000000000000001000000000000001000000000000001000000000000001000000000000001000000000000001000000000000001000000000000001000000000000000BLOCK DIAGRAMQ0Q1Q2Q3Q4Q5Q6Q7Q8Q9VDD = PIN 16VSS = PIN 8314215167495103–BITBINARYINPUTSA8421BCDINPUTS13BOCTALDECODEDOUTPUTS12CDECIMALDECODEDOUTPUTS11Dhttp://onsemi.com2元器件交易网www.cecb2b.comMC14028BELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS)CharacteristicSymbolVOL“1” LevelVDDVdc5.010155.010155.010155.010155.05.010155.0101515—5.010155.01015Min———– 55_C25_C125_CMaxMin———Typ (4.)000MaxMin———MaxUnitVdcOutput VoltageVin = VDD or 0 “0” Level0.050.050.05———0.050.050.05———0.050.050.05———Vin = 0 or VDDVOH4.959.9514.95———4.959.9514.95———5.010154.959.9514.95———VdcInput Voltage“0” Level(VO = 4.5 or 0.5 Vdc) (VO = 9.0 or 1.0 Vdc) (VO = 13.5 or 1.5 Vdc)“1” Level(VO = 0.5 or 4.5 Vdc) (VO = 1.0 or 9.0 Vdc) (VO = 1.5 or 13.5 Vdc)VdcVIL1.53.04.0——————————2.254.506.752.755.508.251.53.04.0——————————1.53.04.0——————————VdcVIH3.57.0113.57.0113.57.011Output Drive Current(VOH = 2.5 Vdc) (VOH = 4.6 Vdc)(VOH = 9.5 Vdc)(VOH = 13.5 Vdc)(VOL = 0.4 Vdc)(VOL = 0.5 Vdc)(VOL = 1.5 Vdc)mAdcSourceIOH– 3.0– 0.64– 1.6– 4.20.641.64.2—————– 2.4– 0.51– 1.3– 3.40.511.33.4—————– 4.2– 0.88– 2.25– 8.80.882.258.8– 1.7– 0.36– 0.9– 2.40.360.92.4—————SinkmAdcIOLIinInput CurrentInput Capacitance(Vin = 0)± 0.1—5.01020±0.000015.00.0050.0100.015± 0.17.55.01020± 1.0—150300600µAdcpFµAdcCinIDDQuiescent Current(Per Package)Total Supply Current (5.) (6.)(Dynamic plus Quiescent,Per Package) (CL = 50 pF on all outputs, allbuffers switching)ITIT = (0.3 µA/kHz) f + IDDIT = (0.6 µA/kHz) f + IDDIT = (0.9 µA/kHz) f + IDDµAdc4.Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.5.The formulas given are for the typical characteristics only at 25_C.6.To calculate total supply current at loads other than 50 pF:IT(CL) = IT(50 pF) + (CL – 50) Vfkwhere: IT is in µA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.001.SWITCHING CHARACTERISTICS (7.) (CL = 50 pF, TA = 25_C)CharacteristicOutput Rise and Fall TimetTLH, tTHL = (1.5 ns/pF) CL + 25 nstTLH, tTHL = (0.75 ns/pF) CL + 12.5 nstTLH, tTHL = (0.55 ns/pF) CL + 9.5 nsPropagation Delay TimetPLH, tPHL = (1.7 ns/pF) CL + 215 nstPLH, tPHL = (0.66 ns/pF) CL + 97 nstPLH, tPHL = (0.5 ns/pF) CL + 65 nsSymboltTLH,tTHLVDD5.010155.01015Min——————Typ (8.)100504030013090Max20010080600260180UnitnstPLH,tPHLns7.The formulas given are for the typical characteristics only at 25_C.8.Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.http://onsemi.com3元器件交易网www.cecb2b.comMC14028BInputs B, C, and Dswitching in respectto a BCD code.20 nsINPUT A10%90%50%VSS1/f20 nsVDDAll outputs connectedto respective CL loads.f in respect to a systemclock.20 nsINPUT C10%Inputs A, B, and D low.tPLH90%Q410%tTLH90%50%20 nsVDDVSStPHLVOH50%tTHLVOLFigure 1. Dynamic Signal WaveformsLOGIC DIAGRAMQ0Q1AQ2Q3BQ4Q5CQ6Q7DQ8Q9http://onsemi.com4元器件交易网www.cecb2b.comMC14028BAPPLICATIONS INFORMATIONExpanded decoding can be performed by using theMC14028B and other CMOS Integrated Circuits. Thecircuit in Figure 2 converts any 4–bit code to a decimal orhexadecimal code. The accompanying table shows the inputbinary combinations, the associated “output numbers” thatgo “high” when selected, and the “redefined outputnumbers” needed for the proper code. For example: For thecombination DCBA = 0111 the output number 7 is redefinedfor the 4–bit binary, 4–bit gray, excess–3, or excess–3 graycodes as 7, 5, 4, or 2, respectively. Figure 3 shows a 6–bitbinary 1–of–64 decoder using nine MC14028B circuits andtwo MC14069UB inverters.The MC14028B can be used in decimal digit displays,such as, neon readouts or incandescent projection indicatorsas shown in Figure 4.DINPUTSCBADQ915CBAQ0–8DQ915CBAQ0–0MC14028BMC14028BOUTPUT NUMBERSFigure 2. Code Conversion Circuit and Truth TableCode and RedefinedOutput NumbersHexadecimalExcess–34–BitBinary4–BitGrayInputsD0000000011111111C0000111100001111B0011001100110011A0101010101010101150000000000000001140000000000000010130000000000000100120000000000001000110000000000010000100000000000100000Output Numbers90000000001000000800000000100000007000000010000000060000001000000000500000100000000004000010000000000030001000000000000200100000000000001010000000000000001000000000000000DecimalExcess–3GrayAiken0123434556876789789422101256012345678910111213141501327645151412138911100123456789034129http://onsemi.com5元器件交易网www.cecb2b.comMC14028BINPUTSABCDAQ0EBFCMC14028BINHIBIT–DQ9(NO SELECTION)ABCDABCDABCDABCDABCDABCDABCDABCDMC14028BMC14028BMC14028BMC14028BMC14028BMC14028BMC14028BMC14028BQ0Q9Q0Q9Q0Q9Q0Q9Q0Q9Q0Q9Q0Q9Q0Q907815162324313239404748555663*1/6 MC14069UB64 OUTPUTS (SELECTED OUTPUT IS HIGH)Figure 3. Six–Bit Binary 1–of–64 DecoderABMC14028BCDQ0Q1Q2Q3Q4Q5Q6Q7Q8Q9APPROPRIATEVOLTAGENEONDISPLAYOR0APPROPRIATEVOLTAGEINCANDESCENTDISPLAY99210Figure 4. Decimal Digit Display Applicationhttp://onsemi.com6元器件交易网www.cecb2b.comMC14028BPACKAGE DIMENSIONS–A–169PDIP–16P SUFFIXPLASTIC DIP PACKAGECASE 648–08ISSUE RB18NOTES:1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.2.CONTROLLING DIMENSION: INCH.3.DIMENSION L TO CENTER OF LEADS WHENFORMED PARALLEL.4.DIMENSION B DOES NOT INCLUDE MOLD FLASH.5.ROUNDED CORNERS OPTIONAL.DIMABCDFGHJKLMSINCHESMILLIMETERSMINMAXMINMAX0.7400.77018.8019.550.2500.2706.356.850.1450.1753.694.440.0150.0210.390.530.0400.701.021.770.100 BSC2.54 BSC0.050 BSC1.27 BSC0.0080.0150.210.380.1100.1302.803.300.2950.3057.507.740 10 0 10 ____0.0200.0400.511.01FSCL–T–HKGD16 PLSEATINGPLANEJTAMM0.25 (0.010)M–A–SOIC–16D SUFFIXPLASTIC SOIC PACKAGECASE 751B–05ISSUE JNOTES:1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETER.3.DIMENSIONS A AND B DO NOT INCLUDEMOLD PROTRUSION.4.MAXIMUM MOLD PROTRUSION 0.15 (0.006)PER SIDE.5.DIMENSION D DOES NOT INCLUDE DAMBARPROTRUSION. ALLOWABLE DAMBARPROTRUSION SHALL BE 0.127 (0.005) TOTALIN EXCESS OF THE D DIMENSION ATMAXIMUM MATERIAL CONDITION.MILLIMETERSINCHESMINMAXMINMAX9.8010.000.3860.3933.804.000.1500.1571.351.750.0540.0680.350.490.0140.0190.401.250.0160.0491.27 BSC0.050 BSC0.190.250.0080.0090.100.250.0040.0090 7 0 7 ____5.806.200.2290.2440.250.500.0100.019169–B–18P8 PL0.25 (0.010)MBSGFKC–T–SEATINGPLANERX 45_MD16 PLMJ0.25 (0.010)TBSASDIMABCDFGJKMPRhttp://onsemi.com7元器件交易网www.cecb2b.com
MC14028B
PACKAGE DIMENSIONS
SOEIAJ–16F SUFFIX
PLASTIC EIAJ SOIC PACKAGE
CASE 966–01ISSUE O
LEQ1EHE18169M_LDETAIL PZDeAVIEW PNOTES:
1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.
2.CONTROLLING DIMENSION: MILLIMETER.3.DIMENSIONS D AND E DO NOT INCLUDEMOLD FLASH OR PROTRUSIONS AND AREMEASURED AT THE PARTING LINE. MOLD FLASHOR PROTRUSIONS SHALL NOT EXCEED 0.15(0.006) PER SIDE.4.TERMINAL NUMBERS ARE SHOWN FORREFERENCE ONLY.5.THE LEAD WIDTH DIMENSION (b) DOES NOTINCLUDE DAMBAR PROTRUSION. ALLOWABLEDAMBAR PROTRUSION SHALL BE 0.08 (0.003)TOTAL IN EXCESS OF THE LEAD WIDTHDIMENSION AT MAXIMUM MATERIAL CONDITION.DAMBAR CANNOT BE LOCATED ON THE LOWERRADIUS OR THE FOOT. MINIMUM SPACEBETWEEN PROTRUSIONS AND ADJACENT LEADTO BE 0.46 ( 0.018).DIMAA1bcDEeHELLEMQ1ZMILLIMETERSMINMAX–––2.050.050.200.350.500.180.279.9010.505.105.451.27 BSC7.408.200.500.851.101.500 _10 _0.700.90–––0.78INCHESMINMAX–––0.0810.0020.0080.0140.0200.0070.0110.3900.4130.2010.2150.050 BSC0.2910.3230.0200.0330.0430.0590 _10 _0.0280.035–––0.031cb0.13 (0.005)MA10.10 (0.004)ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particularpurpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/orspecifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must bevalidated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applicationsintended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury ordeath may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and holdSCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonableattorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claimalleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
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