MC14585B 4-Bit Magnitude Comparator The MC14585B 4-Bit Magnitude Comparator is constructed with complementary MOS (CMOS) enhancement mode devices. The circuit has eight comparing inputs (A3, B3, A2, B2, A1, B1, A0, B0), three cascading inputs (A < B, A = B, and A > B), and three outputs (A < B, A = B, and A > B). This device compares two 4-bit words (A and B) and determines whether they are "less than", "equal to", or "greater than" by a high level on the appropriate output. For words greater than 4-bits, units can be cascaded by connecting outputs (A > B), (A < B), and (A = B) to the corresponding inputs of the next significant comparator. Inputs (A < B), (A = B), and (A > B) on the least significant (first) comparator are connected to a low, a high, and a low, respectively. Applications include logic in CPU's, correction and/or detection of instrumentation conditions, comparator in testers, converters, and controls. * * * * * * Diode Protection on All Inputs Expandable Applicable to Binary or 8421-BCD Code 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 Can be Cascaded - See Fig. 3 MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 2.) Symbol VDD Parameter Unit -0.5 to +18.0 V -0.5 to VDD + 0.5 V Input or Output Current (DC or Transient) per Pin 10 mA PD Power Dissipation, per Package (Note 3.) 500 mW TA Ambient Temperature Range -55 to +125 C Tstg Storage Temperature Range -65 to +150 C TL Lead Temperature (8-Second Soldering) 260 C Vin, Vout Iin, Iout DC Supply Voltage Range Value Input or Output Voltage Range (DC or Transient) http://onsemi.com MARKING DIAGRAMS 16 PDIP-16 P SUFFIX CASE 648 MC14585BCP AWLYYWW 1 16 SOIC-16 D SUFFIX CASE 751B 14585B AWLYWW 1 16 SOEIAJ-16 F SUFFIX CASE 966 MC14585B ALYW 1 A WL, L YY, Y WW, W = Assembly Location = Wafer Lot = Year = Work Week ORDERING INFORMATION Device Package Shipping MC14585BCP PDIP-16 2000/Box MC14585BD SOIC-16 48/Rail MC14585BDR2 SOIC-16 2500/Tape & Reel SOEIAJ-16 See Note 1. MC14585BF 1. For ordering information on the EIAJ version of the SOIC packages, please contact your local ON Semiconductor representative. 2. Maximum Ratings are those values beyond which damage to the device may occur. 3. Temperature Derating: Plastic "P and D/DW" Packages: - 7.0 mW/C From 65C To 125C 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. Semiconductor Components Industries, LLC, 2000 August, 2000 - Rev. 4 1 Publication Order Number: MC14585B/D MC14585B PIN ASSIGNMENT B2 1 16 VDD A2 2 15 A3 (A = B)out 3 14 B3 (A B)in 4 13 (A B)out (A B)in 5 12 (A B)out (A = B)in 6 11 B0 A1 7 10 A0 VSS 8 9 B1 BLOCK DIAGRAM (A>B)in (A=B)in (A<B)in A0 B0 A1 B1 A2 B2 A3 B3 4 6 5 10 11 7 9 2 1 15 14 (A>B)out 13 (A=B)out 3 (A<B)out 12 VDD = PIN 16 VSS = PIN 8 TRUTH TABLE (x = Don't Care) Inputs Comparing Cascading Outputs A3, B3 A2, B2 A1, B1 A0, B0 A<B A=B A>B A<B A=B A>B A3 > B3 A3 = B3 A3 = B3 A3 = B3 x A2 > B2 A2 = B2 A2 = B2 x x A1 > B1 A1 = B1 x x x A0 > B0 x x x x x x x x x x x x 0 0 0 0 0 0 0 0 1 1 1 1 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A0 = B0 A0 = B0 A0 = B0 A0 = B0 0 0 1 1 0 1 0 1 x x x x 0 0 1 1 0 1 0 1 1 0 0 0 A3 = B3 A3 = B3 A3 = B3 A2 = B2 A2 = B2 A2 < B2 A1 = B1 A1 < B1 x A0 < B0 x x x x x x x x x x x 1 1 1 0 0 0 0 0 0 A3 < B3 x x x x x x 1 0 0 http://onsemi.com 2 MC14585B IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS) Characteristic Output Voltage Vin = VDD or 0 Symbol - 55C 25C 125C VDD Vdc Min Max Min Typ (4.) Max Min Max Unit "0" Level VOL 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 "1" Level VOH 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 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) 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 "1" Level 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 -- -- -- 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 -- -- -- -- IOL 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 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 Vin = 0 or VDD (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 Vdc IOH Source Sink Total Supply Current (5.) (6.) (Dynamic plus Quiescent, Per Package) (CL = 50 pF on all outputs, all buffers switching) mAdc IT = (0.6 A/kHz) f + IDD IT = (1.2 A/kHz) f + IDD IT = (1.8 A/kHz) f + IDD 4. 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 25C. 6. 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. http://onsemi.com 3 Adc MC14585B IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII SWITCHING CHARACTERISTICS (7.) (CL = 50 pF, TA = 25C) Symbol Characteristic 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 Turn-On, Turn-Off Delay Time tPLH, tPHL = (1.7 ns/pF) CL + 345 ns tPLH, tPHL = (0.66 ns/pF) CL + 147 ns tPLH, tPHL = (0.5 ns/pF) CL + 105 ns tPLH, tPHL VDD Min Typ (8.) Max 5.0 10 15 -- -- -- 100 50 40 200 100 80 5.0 10 15 -- -- -- 430 180 130 860 360 260 Unit ns ns 7. The formulas given are for the typical characteristics only at 25C. 8. Data labelled "Typ" is not to be used for design purposes but is intended as an indication of the IC's potential performance. 20 ns 20 ns VDD A3 1 2f B3 (A>B)out VSS VDD VSS 20 ns VOH 50% B0 VOH 10% tPLH VOL tPHL 50% (A<B)out VOL 10% tTLH Inputs (A>B) and (A=B) high, and inputs B2, A2, B1, A1, B0, A0 and (A<B) low. f in respect to a system clock. VSS VOH 90% VOH (A<B)out VDD 90% VOL (A=B)out 20 ns VOL tTHL Inputs (A>B) and (A=B) high, and inputs B3, A3, B2, A2, B1, A1, A0, and (A<B) low. Figure 1. Dynamic Power Dissipation Signal Waveforms Figure 2. Dynamic Signal Waveforms http://onsemi.com 4 MC14585B (A>B) (A=B) (A<B) (A>B) (A=B) B3 A3 B2 A2 B1 A1 B0 A0 OUTPUT MC14585B VSS VDD VSS (A<B) WORD B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 B = B11 WORD A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 A= INPUTS MC14585B WORD B = B11, B10, ..., B0. WORD A = A11, A10, ..., A0. (A>B) (A=B) (A<B) MC14585B OUTPUTS Figure 3. Cascading Comparators LOGIC DIAGRAM A3 B3 A2 B2 A1 B1 A0 B0 (A<B)in (A=B)in (A>B)in 15 14 2 1 12 7 (A<B)out 9 10 11 5 3 6 13 4 http://onsemi.com 5 (A=B)out (A>B)out MC14585B PACKAGE DIMENSIONS PDIP-16 P SUFFIX PLASTIC DIP PACKAGE CASE 648-08 ISSUE R -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 LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. B F C DIM A B C D F G H J K L M S L S -T- SEATING PLANE K H G D M J 16 PL 0.25 (0.010) M T A M 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 SEATING PLANE J M D 16 PL 0.25 (0.010) 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 SOIC-16 D SUFFIX PLASTIC SOIC PACKAGE CASE 751B-05 ISSUE J -A- -T- 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 M T B S A S http://onsemi.com 6 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 MC14585B PACKAGE DIMENSIONS SOEIAJ-16 F SUFFIX PLASTIC EIAJ SOIC PACKAGE CASE 966-01 ISSUE O 16 LE 9 Q1 M E HE 1 8 L DETAIL P Z D e VIEW P A A1 b 0.13 (0.005) c M 0.10 (0.004) http://onsemi.com 7 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). DIM A A1 b c D E e HE L LE M Q1 Z MILLIMETERS MIN MAX --2.05 0.05 0.20 0.35 0.50 0.18 0.27 9.90 10.50 5.10 5.45 1.27 BSC 7.40 8.20 0.50 0.85 1.10 1.50 10 0 0.70 0.90 --0.78 INCHES MIN MAX --0.081 0.002 0.008 0.014 0.020 0.007 0.011 0.390 0.413 0.201 0.215 0.050 BSC 0.291 0.323 0.020 0.033 0.043 0.059 10 0 0.028 0.035 --0.031 MC14585B 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 particular purpose, 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. 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