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| HD74HC85 4-bit Magnitude Comparator REJ03D0555-0200 (Previous ADE-205-427) Rev.2.00 Oct 06, 2005 Description The HD74HC85 is designed for high speed comparison of two four bit words. This circuit has eight comparison input, 4 for each word; three cascade inputs (A < B, A > B, A = B); and three decision outputs (A < B, A > B, A = B). The result of a comparison is indicated by a high level on one of the decision outputs. Thus it may be determined whether one word is "greater than," "less than," or "equal to" the other word. By connecting the outputs of the least significant stage to the cascade inputs of the next stage, words of greater than four bits can be compared. In addition the least significant stage must have a high level applied to the A = B input, and a low level to the A < B, and A > B inputs. Features * * * * * * High Speed Operation: tpd (Data Word Input to Output) = 20 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 A max Low Quiescent Supply Current: ICC (static) = 4 A max (Ta = 25C) Ordering Information Part Name HD74HC85P HD74HC85FPEL HD74HC85RPEL Package Type DILP-16 pin SOP-16 pin (JEITA) SOP-16 pin (JEDEC) Package Code (Previous Code) PRDP0016AE-B (DP-16FV) PRSP0016DH-B (FP-16DAV) PRSP0016DG-A (FP-16DNV) Package Abbreviation P FP RP -- EL (2,000 pcs/reel) EL (2,500 pcs/reel) Taping Abbreviation (Quantity) Note: Please consult the sales office for the above package availability. Rev.2.00, Oct 06, 2005 page 1 of 7 HD74HC85 Function Table Data Word Inputs A3, B3 A3 > B3 A3 < B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 H: L: X: A2, B2 X X A2 > B2 A2 < B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A1, B1 X X X X A1 > B1 A1 < B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A0, B0 X X X X X X A0 > B0 A0 < B0 A0 = B0 A0 = B0 A0 = B0 A0 = B0 A0 = B0 Cascading Inputs A > Bin X X X X X X X X L L H H X A = Bin X X X X X X X X L L L L H A < Bin X X X X X X X X L H L H X A > Bout H L H L H L H L H L H L L Outputs A = Bout L L L L L L L L L L L L H A < Bout L H L H L H L H H H L L L High level Low level Irrelevant Pin Arrangement B3 Data 1 Input AB 4 A>B 5 A=B 6 A16 VCC B3 A3 15 A3 14 B2 13 A2 12 A1 11 B1 10 A0 9 B0 A=B In B2 A>B A>B A2 A1 A=B out B1 ARev.2.00, Oct 06, 2005 page 2 of 7 HD74HC85 Logic Diagram B3 A3 A>Bout B2 A2 B1 A1 A Absolute Maximum Ratings Item Supply voltage range Input / Output voltage Input / Output diode current Output current VCC, GND current Power dissipation Symbol VCC Vin, Vout IIK, IOK IO ICC or IGND PT Ratings -0.5 to 7.0 -0.5 to VCC +0.5 20 25 50 500 Unit V V mA mA mA mW Storage temperature Tstg -65 to +150 C Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Supply voltage Input / Output voltage Operating temperature Input rise / fall time Note: *1 Symbol VCC VIN, VOUT Ta tr , tf Ratings 2 to 6 0 to VCC -40 to 85 0 to 1000 0 to 500 Unit V V C ns Conditions VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V 0 to 400 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. Rev.2.00, Oct 06, 2005 page 3 of 7 HD74HC85 Electrical Characteristics Ta = 25C Item Input voltage Symbol VCC (V) VIH 2.0 4.5 6.0 VIL 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 VOL 2.0 4.5 6.0 4.5 Input current Quiescent supply current Iin ICC 6.0 6.0 6.0 Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.18 5.68 -- -- -- -- -- -- -- Typ -- -- -- -- -- -- 2.0 4.5 6.0 -- -- 0.0 0.0 0.0 -- -- -- -- Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.26 0.26 0.1 4.0 Ta = -40 to+85C Min 1.5 3.15 4.2 -- -- -- 1.9 4.4 5.9 4.13 5.63 -- -- -- -- -- -- -- Max -- -- -- 0.5 1.35 1.8 -- -- -- -- -- 0.1 0.1 0.1 0.33 0.33 1.0 40 V IOH = -4 mA IOH = -5.2 mA Vin = VIH or VIL IOL = 20 A V Unit V Test Conditions Output voltage VOH V Vin = VIH or VIL IOH = -20 A IOL = 4 mA IOL = 5.2 mA A Vin = VCC or GND A Vin = VCC or GND, Iout = 0 A Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Ta = 25C Item Propagation delay time Symbol VCC (V) tPLH, tPHL 2.0 4.5 6.0 tPLH, tPHL 2.0 4.5 6.0 2.0 4.5 6.0 tPLH, tPHL 2.0 4.5 6.0 2.0 4.5 6.0 Input capacitance Cin -- Min -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Typ -- 20 -- -- 20 -- -- 12 -- -- 14 -- -- 5 -- 5 Max 210 42 36 175 35 30 125 25 21 155 31 26 75 15 13 10 Ta = -40 to +85C Min -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max 265 53 45 220 44 37 155 31 26 195 39 33 95 19 16 10 pF ns A1 or B1 to C4 ns A1 or B1 to 1 Unit ns Test Conditions C0 to 1 tPLH, tPHL ns C0 to C4 Output fall time tTHL ns Rev.2.00, Oct 06, 2005 page 4 of 7 HD74HC85 Test Circuit VCC VCC Output See Function Table Input Pulse generator Zout = 50 A3 B3 A2 B2 A1 B1 A0 B0 AB A>B CL = 50 pF Output A=B CL = 50 pF Output ANote: CL includes the probe and jig capacitance. Waveforms tr 90 % 50 % 10 % t PLH 90 % Same-phase output 50 % 10 % t TLH 90 % 50 % 10 % t PHL 90 % 50 % 10 % t THL VOH VOL tf VCC 0V Input t PHL 90 % Inverse-phase output t PLH 90 % 50 % 10 % t THL 50 % 10 % t TLH VOH VOL Notes: 1. Input waveform: PRR 1 MHz, Zo = 50 , tr 6 ns, tf 6 ns 2. The output are measured one at a time with one transition per measurement. Rev.2.00, Oct 06, 2005 page 5 of 7 HD74HC85 Package Dimensions JEITA Package Code P-DIP16-6.3x19.2-2.54 RENESAS Code PRDP0016AE-B Previous Code DP-16FV MASS[Typ.] 1.05g D 16 9 1 0.89 b3 8 Z E A1 A Reference Symbol Dimension in Millimeters Min Nom 7.62 19.2 6.3 20.32 7.4 5.06 0.51 0.40 0.48 1.30 0.19 0 2.29 2.54 0.25 0.31 15 2.79 1.12 2.54 0.56 Max e D E 1 L A A1 e bp e1 b c b c p 3 e Z ( Ni/Pd/Au plating ) L JEITA Package Code P-SOP16-3.95x9.9-1.27 RENESAS Code PRSP0016DG-A Previous Code FP-16DNV MASS[Typ.] 0.15g *1 D 9 F 16 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. bp Index mark *2 E HE c Reference Symbol Dimension in Millimeters Min Nom 9.90 3.95 Max 10.30 Terminal cross section ( Ni/Pd/Au plating ) 1 Z e *3 D E A2 8 bp x M L1 A1 A bp b1 c c 1 0.10 0.14 0.25 1.75 0.34 0.40 0.46 0.15 0.20 0.25 HE 0 5.80 6.10 1.27 8 6.20 A A1 L y e x y 0.25 0.15 0.635 0.40 1 Detail F Z L L 0.60 1.08 1.27 Rev.2.00, Oct 06, 2005 page 6 of 7 HD74HC85 JEITA Package Code P-SOP16-5.5x10.06-1.27 RENESAS Code PRSP0016DH-B Previous Code FP-16DAV MASS[Typ.] 0.24g *1 D F 9 16 NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. bp HE E Index mark Reference Symbol *2 c Dimension in Millimeters Min Nom 10.06 5.50 Max 10.5 Terminal cross section ( Ni/Pd/Au plating ) 1 Z e *3 D E A2 8 bp x M L1 A1 A bp b1 c 0.00 0.10 0.20 2.20 0.34 0.40 0.46 0.15 1 0.20 0.25 A c HE 0 7.50 7.80 1.27 8 8.00 A1 y L e x y 0.12 0.15 0.80 0.50 1 Detail F Z L L 0.70 1.15 0.90 Rev.2.00, Oct 06, 2005 page 7 of 7 Sales Strategic Planning Div. Keep safety first in your circuit designs! Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. Notes regarding these materials 1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp. product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or a third party. 2. Renesas Technology Corp. assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples contained in these materials. 3. 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