Details, datasheet, quote on part number: MC14585B
CategoryAnalog & Mixed-Signal Processing => Amplifiers => Operational Amplifiers => General Purpose => Single
Description4-bit Magnitude Comparator
CompanyON Semiconductor
DatasheetDownload MC14585B datasheet
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Features, Applications

The MC14585B 4­Bit Magnitude Comparator is constructed with complementary MOS (CMOS) enhancement mode devices. The circuit has eight comparing inputs A0, B0), three cascading inputs = B, and A > B), and three outputs = B, and A > B). This device compares two 4­bit 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 4­bits, units can be cascaded by connecting outputs (A > B), (A < B), and B) to the corresponding inputs of the next significant comparator. Inputs (A < B), (A = B), and 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.

PDIP­16 P SUFFIX CASE 648 MC14585BCP AWLYYWW SOIC­16 D SUFFIX CASE SOEIAJ­16 F SUFFIX CASE 1 A WL, L YY, Y WW, W = Assembly Location = Wafer Lot = Year = Work Week MC14585B ALYW 14585B AWLYWW

Diode Protection on All Inputs Expandable Applicable to Binary or 8421­BCD Code Supply Voltage Range = 3.0 Vdc to 18 Vdc Capable of Driving Two Low­power TTL Loads or One Low­power Schottky TTL Load over the Rated Temperature Range Can be Cascaded ­ See Fig. 3

MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 2.)

Symbol VDD Vin, Vout Iin, Iout PD TA Tstg TL Parameter DC Supply Voltage Range Input or Output Voltage Range (DC or Transient) Input or Output Current (DC or Transient) per Pin Power Dissipation, per Package (Note 3.) Ambient Temperature Range Storage Temperature Range Lead Temperature (8­Second Soldering) Value ­0.5 to VDD +150 260 Unit V

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 To 125_C 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 high­impedance circuit. For proper operation, Vin and Vout should be constrained to 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.

(A = B)out (A u B)in (A t B)in (A = B)in A1 VSS VDD (A u B)out (A t B)out A0 B1

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 6. To calculate total supply current at loads other than 50 pF: IT(CL) = IT(50 pF) + (CL ­ 50) Vfk where: in µA (per package), CL in pF, V = (VDD ­ VSS) in volts, f in kHz is input frequency, and = 0.001.


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