SEMICONDUCTOR TECHNICAL DATA L SUFFIX CERAMIC CASE 620 The MC14028B decoder is constructed so that an 8421 BCD code on 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 as binary-to-hexadecimal (one-of-16), etc., can be achieved by using other MC14028B devices. The part is useful for code conversion, address decoding, memory selection control, demultiplexing, or readout decoding. P SUFFIX PLASTIC CASE 648 * 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 Range * Positive Logic Design * Low Outputs on All Illegal Input Combinations * Similar to CD4028B. D SUFFIX SOIC CASE 751B IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIII IIII IIIIIIIIIII IIIIII III IIIIIIIIIIIIIIIIIIIII IIII IIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIII ORDERING INFORMATION MC14XXXBCP MC14XXXBCL MC14XXXBD MAXIMUM RATINGS* (Voltages Referenced to VSS) Symbol VDD Parameter DC Supply Voltage Value Unit - 0.5 to + 18.0 V Vin, Vout Input or Output Voltage (DC or Transient) - 0.5 to VDD + 0.5 V lin, lout Input or Output Current (DC or Transient), per Pin 10 mA PD Power Dissipation, per Package 500 mW Tstg Storage Temperature - 65 to + 150 _C 260 _C TL Lead Temperature (8-Second Soldering) Plastic Ceramic SOIC TA = - 55 to 125C for all packages. * Maximum Ratings are those values beyond which damage to the device may occur. Temperature Derating: Plastic "P and D/DW" Packages: - 7.0 mW/_C From 65_C To 125_C Ceramic "L" Packages: - 12 mW/_C From 100_C To 125_C TRUTH TABLE D C B A Q9 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 BLOCK DIAGRAM 8421 BCD INPUTS 3-BIT BINARY INPUTS 10 A 13 B 12 C 11 D Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 3 14 2 15 1 6 7 4 9 5 OCTAL DECODED OUTPUTS DECIMAL DECODED OUTPUTS 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 1 1 1 1 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 1 1 0 1 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 VDD = PIN 16 VSS = PIN 8 REV 3 1/94 MOTOROLA Motorola, Inc. 1995 CMOS LOGIC DATA MC14028B 113 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIII IIII III IIIIII IIIIIIII IIIIII III IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIII IIIIIIII IIIIII IIIIIIIIII IIII III III IIII III IIII III IIII III III IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIII IIIIIIII IIIIII IIIIIIIIIIIIIIIIIIII IIII III IIII III IIII III III IIIIII IIIIIIII IIIIII IIIIIIIIIIIIIIIIIIII IIIIIII IIIIIIIIIII IIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS) - 55_C 25_C 125_C VDD Vdc Min Max Min Typ # Max Min Max Unit 5.0 10 15 -- -- -- 0.05 0.05 0.05 -- -- -- 0 0 0 0.05 0.05 0.05 -- -- -- 0.05 0.05 0.05 Vdc VOL 5.0 10 15 4.95 9.95 14.95 -- -- -- 4.95 9.95 14.95 5.0 10 15 -- -- -- 4.95 9.95 14.95 -- -- -- Vdc VOH VIL 5.0 10 15 -- -- -- 1.5 3.0 4.0 -- -- -- 2.25 4.50 6.75 1.5 3.0 4.0 -- -- -- 1.5 3.0 4.0 VIH 5.0 10 15 3.5 7.0 11 -- -- -- 3.5 7.0 11 2.75 5.50 8.25 -- -- -- 3.5 7.0 11 -- -- -- IOH 5.0 5.0 10 15 - 3.0 - 0.64 - 1.6 - 4.2 -- -- -- -- - 2.4 - 0.51 - 1.3 - 3.4 - 4.2 - 0.88 - 2.25 - 8.8 -- -- -- -- - 1.7 - 0.36 - 0.9 - 2.4 -- -- -- -- 5.0 10 15 0.64 1.6 4.2 -- -- -- 0.51 1.3 3.4 0.88 2.25 8.8 -- -- -- 0.36 0.9 2.4 -- -- -- mAdc IOL Input Current Iin 15 -- 0.1 -- 0.00001 0.1 -- 1.0 Adc Input Capacitance (Vin = 0) Cin -- -- -- -- 5.0 7.5 -- -- pF Quiescent Current (Per Package) IDD 5.0 10 15 -- -- -- 5.0 10 20 -- -- -- 0.005 0.010 0.015 5.0 10 20 -- -- -- 150 300 600 Adc IT 5.0 10 15 Characteristic Output Voltage Vin = VDD or 0 Symbol "0" Level "1" Level Vin = 0 or VDD Input Voltage "0" Level (VO = 4.5 or 0.5 Vdc) (VO = 9.0 or 1.0 Vdc) (VO = 13.5 or 1.5 Vdc) Vdc "1" Level (VO = 0.5 or 4.5 Vdc) (VO = 1.0 or 9.0 Vdc) (VO = 1.5 or 13.5 Vdc) Output 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) Vdc mAdc Source Sink Total Supply Current** (Dynamic plus Quiescent, Per Package) (CL = 50 pF on all outputs, all buffers switching) IT = (0.3 A/kHz) f + IDD IT = (0.6 A/kHz) f + IDD IT = (0.9 A/kHz) f + IDD Adc #Data labelled "Typ" is not to be used for design purposes but is intended as an indication of the IC's potential performance. ** The formulas given are for the typical characteristics only at 25_C. To calculate total supply current at loads other than 50 pF: IT(CL) = IT(50 pF) + (CL - 50) Vfk where: IT is in A (per package), CL in pF, V = (VDD - VSS) in volts, f in kHz is input frequency, and k = 0.001. This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, Vin and Vout should be constrained to the range VSS (Vin or Vout) 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. MC14028B 114 PIN ASSIGNMENT Q4 1 16 VDD Q2 2 15 Q3 Q0 3 14 Q1 Q7 4 13 B Q9 5 12 C Q5 6 11 D Q6 7 10 A VSS 8 9 Q8 MOTOROLA CMOS LOGIC DATA IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIII IIII IIIII IIII IIII IIII III IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIII IIII IIIII IIII IIII IIII III IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII SWITCHING CHARACTERISTICS* (CL = 50 pF, TA = 25_C) Characteristic Symbol Output Rise and Fall Time tTLH, tTHL = (1.5 ns/pF) CL + 25 ns tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns tTLH, tTHL Propagation Delay Time tPLH, tPHL = (1.7 ns/pF) CL + 215 ns tPLH, tPHL = (0.66 ns/pF) CL + 97 ns tPLH, tPHL = (0.5 ns/pF) CL + 65 ns tPLH, tPHL VDD Min Typ # Max 5.0 10 15 -- -- -- 100 50 40 200 100 80 5.0 10 15 -- -- -- 300 130 90 600 260 180 Unit ns ns * The formulas given are for the typical characteristics only at 25_C. #Data labelled "Typ" is not to be used for design purposes but is intended as an indication of the IC's potential performance. Inputs B, C, and D switching in respect to a BCD code. 20 ns 20 ns VDD 90% INPUT A 50% 10% VSS All outputs connected to respective CL loads. f in respect to a system clock. 1/f 20 ns 20 ns VDD 90% INPUT C 50% 10% Inputs A, B, and D low. VSS tPLH tPHL VOH 90% Q4 50% 10% VOL tTLH tTHL Figure 1. Dynamic Signal Waveforms MOTOROLA CMOS LOGIC DATA MC14028B 115 LOGIC DIAGRAM Q0 Q1 A Q2 Q3 B Q4 Q5 C Q6 Q7 D Q8 Q9 APPLICATIONS INFORMATION INPUTS Expanded decoding can be performed by using the MC14028B and other CMOS Integrated Circuits. The circuit in Figure 2 converts any 4-bit code to a decimal or hexadecimal code. The accompanying table shows the input binary combinations, the associated "output numbers" that go "high" when selected, and the "redefined output numbers" needed for the proper code. For example: For the combination DCBA = 0111 the output number 7 is redefined for the 4-bit binary, 4-bit gray, excess-3, or excess-3 gray codes as 7, 5, 4, or 2, respectively. Figure 3 shows a 6-bit binary 1-of-64 decoder using nine MC14028B circuits and two MC14069UB inverters. The MC14028B can be used in decimal digit displays, such as, neon readouts or incandescent projection indicators as shown in Figure 4. D D C B A D MC14028B C B A C B A MC14028B Q9 Q0 15 Q9 -8 Q0 15 -0 OUTPUT NUMBERS Figure 2. Code Conversion Circuit and Truth Table Code and Redefined Output Numbers B A 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 1 2 3 0 1 3 2 0 0 0 0 0 1 1 1 1 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 5 6 7 7 6 4 5 1 2 3 4 1 1 1 1 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 9 10 11 15 14 12 13 5 6 7 8 1 1 1 1 1 1 1 1 0 0 1 1 0 1 0 1 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12 13 14 15 8 9 11 10 9 MC14028B 116 4221 C Aiken D Decimal Excess-3 Gray 4-Bit Gray Output Numbers 4-Bit Binary Inputs Excess-3 Hexadecimal 0 3 0 1 2 3 0 1 2 4 4 3 4 1 2 5 6 9 5 5 6 8 7 6 7 8 9 7 8 9 MOTOROLA CMOS LOGIC DATA INPUTS A B C D E F INHIBIT A B C MC14028B -D Q0 (NO SELECTION) Q9 A B C D A B C D A B C D A B C D A B C D A B C D A B C D A B C D MC14028B MC14028B MC14028B MC14028B MC14028B MC14028B MC14028B MC14028B Q0 Q9 Q0 Q9 Q0 Q9 Q0 Q9 Q0 Q9 Q0 Q9 Q0 Q9 Q0 Q9 0 7 8 15 *1/6 MC14069UB 16 23 24 31 32 39 40 47 48 55 56 63 64 OUTPUTS (SELECTED OUTPUT IS HIGH) Figure 3. Six-Bit Binary 1-of-64 Decoder A B MC14028B C D Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 APPROPRIATE VOLTAGE APPROPRIATE VOLTAGE INCANDESCENT DISPLAY NEON DISPLAY OR 9 0 9 2 1 0 Figure 4. Decimal Digit Display Application MOTOROLA CMOS LOGIC DATA MC14028B 117 OUTLINE DIMENSIONS L SUFFIX CERAMIC DIP PACKAGE CASE 620-10 ISSUE V -A- 16 9 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. -B- C L DIM A B C D E F G H K L M N -T- K N SEATING PLANE M E F J G D 16 PL 0.25 (0.010) 16 PL 0.25 (0.010) M T A T B M S INCHES MIN MAX 0.750 0.785 0.240 0.295 --- 0.200 0.015 0.020 0.050 BSC 0.055 0.065 0.100 BSC 0.008 0.015 0.125 0.170 0.300 BSC 0_ 15 _ 0.020 0.040 MILLIMETERS MIN MAX 19.05 19.93 6.10 7.49 --- 5.08 0.39 0.50 1.27 BSC 1.40 1.65 2.54 BSC 0.21 0.38 3.18 4.31 7.62 BSC 0_ 15 _ 0.51 1.01 S P SUFFIX PLASTIC DIP PACKAGE CASE 648-08 ISSUE R NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. -A- 16 9 1 8 B F C L S -T- K H G D J 16 PL 0.25 (0.010) MC14028B 118 SEATING PLANE M T A M M DIM A B C D F G H J K L M S INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01 MOTOROLA CMOS LOGIC DATA OUTLINE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J -A- 16 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 9 -B- 1 P 8 PL 0.25 (0.010) 8 M B S G R K F X 45 _ C -T- SEATING PLANE M D 16 PL 0.25 (0.010) M T B S A S J DIM A B C D F G J K M P R MILLIMETERS MIN MAX 9.80 10.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.386 0.393 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola 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 consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. 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Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 or 602-303-5454 JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-81-3521-8315 MFAX: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 MOTOROLA CMOS LOGIC DATA *MC14028B/D* MC14028B MC14028B/D 119