National Semiconductor is now part of Texas Instruments. Search http://www.ti.com/ for the latest technical information and details on our current products and services. 1 of 6 MICROCIRCUIT DATA SHEET Original Creation Date: 10/25/95 Last Update Date: 05/19/97 Last Major Revision Date: 04/02/97 MNMM54C85-X REV 1A0 4-BIT MAGNITUDE COMPARATOR General Description The MM54C85 is a four-bit magnitude comparator which will perform comparison of straight binary or BCD codes. The circuit consists of eight comparing inputs (A0, A1, A2, A3, B0, B1, B2, B3), three cascading inputs (A > B, A < B and A = B), and three outputs (A > B, A < B and A = B). This device compares two four-bit words (A and B) and determines whether they are "greater than", "less than", or "equal to" each other by a high level on the appropriate output. For words greater than four-bits, units can be cascaded by connecting the outputs (A > B, A < B and A = B) of the lease significant stage to the cascade inputs (A > B, A < B and A = B) of the next-significant stage. In addition the lease significant stage must have a high level voltage (Vin(1)) applied to the A = B input and low level voltage (Vin(0)) applies to A > B and A < B inputs. Industry Part Number NS Part Numbers MM54C85 MM54C85J/883 MM54C85W/883 Prime Die MM54C85 Processing Subgrp Description MIL-STD-883, Method 5004 1 2 3 4 5 6 7 8A 8B 9 10 11 Quality Conformance Inspection MIL-STD-883, Method 5005 Static tests at Static tests at Static tests at Dynamic tests at Dynamic tests at Dynamic tests at Functional tests at Functional tests at Functional tests at Switching tests at Switching tests at Switching tests at Temp ( oC) +25 +125 -55 +25 +125 -55 +25 +125 -55 +25 +125 -55 1 2 of 6 MICROCIRCUIT DATA SHEET MNMM54C85-X REV 1A0 Features - Wide supply voltage range Guaranteed noise margin High noise immunity Low power TTL compatibility - Expandable to "N" stage - Applicable to binary or BCD - Low power pinout: 54L85 3.0V to 15V 1.0V 0.4 Vcc (typ.) Fan out of 2 driving 74L 2 3 of 6 MICROCIRCUIT DATA SHEET MNMM54C85-X REV 1A0 (Absolute Maximum Ratings) (Note 1) Voltage at Any Pin -0.3V to Vcc +0.3V Operating Temperature Range -55 C to +125 C Storage Temperature Range -65 C to +150 C Power Dissipation (Pd) Dual-In-Line Small Outline Operating Vcc Range 700mW 500mW 3.0V to 15V Vcc 18V Lead Temperature (Soldering, 10 seconds) Note 1: 260 C "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. Except for "Operating Temperature Range" they are not meant to imply that the devices should be operated at these limits. The table of "Electrical Characteristics" provides conditions for actual device operation. 3 4 of 6 MICROCIRCUIT DATA SHEET MNMM54C85-X REV 1A0 Electrical Characteristics DC PARAMETERS: SYMBOL Voh Vol Iih Iil Icc Isource PARAMETER Logical "1" Output Voltage Logical "0" Output Voltage Logical "1" Input Current Logical "0" Input Current Quiescent Device Current Output Source Current CONDITIONS NOTES Output Sink Current UNIT SUBGROUPS V 1, 2, 3 Vcc = 10V, Ioh = -10uA, Vih = 8V, Vil = 2V 9 V 1, 2, 3 Vcc = 4.5V, Ioh = -360uA, Vih = 3V, Vil = 0.8V 2.4 V 1, 2, 3 Vcc = 5V, Iol = 10uA, Vil = 1.5V 0.5 V 1, 2, 3 Vcc = 10V, Iol = 10uA, Vil = 2V 1 V 1, 2, 3 Vcc = 4.5V, Iol = 360uA, Vil = 0.8V 0.4 V 1, 2, 3 Vcc = 15V, Vin = 15V 0.15 uA 1, 3 1 uA 2 -0.15 uA 1, 3 -1 uA 2 10 uA 1, 3 300 uA 2 -1.75 mA 1, 3 -1.2 mA 2 -8 mA 1, 3 -5.6 mA 2 1.75 mA 1, 3 1.2 mA 2 8 mA 1, 3 5.6 mA 2 360 uA 1, 2, 3 Vcc = 15V, Vin = 0V Vcc = 15V Vcc = 5V, Vout = 0V Vcc = 5V, Vout = 5V Vcc = 4.5V, Vout = 0.4V Logical "1" Input Voltage MAX 4.5 Vcc = 10V, Vout = 10V Vih MIN Vcc = 5V, Ioh = -10uA, Vih = 3.5V, Vil = 1.5V Vcc = 10V, Vout = 0V Isink PINNAME Vcc = 5V 1 3.5 V 1, 2, 3 Vcc = 10V 1 8 V 1, 2, 3 Vcc = 4.5V (LP to CMOS) 1 3 V 1, 2, 3 4 5 of 6 MICROCIRCUIT DATA SHEET MNMM54C85-X REV 1A0 Electrical Characteristics DC PARAMETERS:(Continued) SYMBOL Vil PARAMETER Logical "0" Input Voltage CONDITIONS NOTES PINNAME MIN MAX UNIT SUBGROUPS Vcc = 5V 1 1.5 V 1, 2, 3 Vcc = 10V 1 2 V 1, 2, 3 Vcc = 4.5V (LP to CMOS) 1 0.8 V 1, 2, 3 AC PARAMETERS: PROPAGATION DELAY TIME: (The following conditions apply to all the following parameters, unless otherwise specified.) AC: Cl = 50pF or equivalent impedance provided by diode load. tPHL From A/B to Output Vcc = 5V Vcc = 10V tPLH From A/B to Output Vcc = 5V Vcc = 10V tPHL From Cascade Input to Output Vcc = 5V Vcc = 10V tPLH From Cascade Input to Output Vcc = 5V Vcc = 10V Note 1: Note 2: 2 600 nS 9 2 750 nS 10, 11 2 300 nS 9 2 375 nS 10, 11 2 600 nS 9 2 750 nS 10, 11 2 300 nS 9 2 375 nS 10, 11 2 500 nS 9 2 625 nS 10, 11 2 250 nS 9 2 312 nS 10, 11 2 500 nS 9 2 625 nS 10, 11 2 250 nS 9 2 312 nS 10, 11 Parameter tested go-no-go only. Tested at 25 C; guaranteed but not tested at +125 C and -55 C. 5 6 of 6