Logic Comparators

Logic comparators, also known as binary comparators and digital comparators are semiconductor logic ICs (integrated circuits) that has been designed as a combinational circuit for the testing of values represented by one binary word.

What are Logic Comparators?

Logic comparators test whether the value is greater than, less than, or equal to the value represented by another binary word. These devices are used commonly in digital logic circuit design and are also utilised in other key logic circuits.

Types of logic comparators

There are two main types of logic comparators and they are;

  • Magnitude comparators - These devices have two outputs, 1 that is logic where object A has a greater value than value B and are used to indicate equality.
  • Identity comparators - Identity comparators are devices that compare two binary numbers that has a singular output

Logic comparators are also offered with a variety of configurations such as Number of Bits configured on to the IC, varied maximum operating supply voltage and different output types such as push pull and TTL (Transistor–transistor logic)

Applications of logic comparators

These ICs have a range of application use such as;

  • Process controllers
  • Servo-motor control
  • Correction and/or detection of instrumentation conditions
  • Logic in CPU’s

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Description Price Logic Family Logic Function Output Function Number of Bits Output Type Polarity Mounting Type Package Type Pin Count Maximum High Level Output Current Maximum Low Level Output Current Maximum Propagation Delay Time @ Maximum CL Dimensions Height
RS庫存編號 527-801
製造零件編號CD74HC85E
HK$11.056
毎管:25 個
單位
HC Magnitude Comparator AB 4 - Non-Inverting Through Hole PDIP 16 -5.2mA 5.2mA 33 ns@ 6 V, 39 ns@ 4.5 V, 195 ns@ 2 V 19.3 x 6.35 x 4.57mm 4.57mm
RS庫存編號 145-0032
製造零件編號CD4585BE
HK$5.04
毎管:25 個
單位
4000 Magnitude Comparator - 4 - Non-Inverting Through Hole PDIP 16 -4.2mA 4.2mA 160 ns @ 15 V, 250 ns @ 10 V, 600 ns @ 5 V 19.3 x 6.35 x 4.57mm 4.57mm
RS庫存編號 145-6299
製造零件編號SN74ALS521N
HK$14.63
毎管:20 個
單位
ALS Identity Comparator A=B 8 Push-Pull Inverting Through Hole PDIP 20 -2.6mA 24mA 20 ns @ 5.5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 162-6964
製造零件編號CD74HC85PWR
HK$3.77
個 (在毎卷:2000)
單位
HC Magnitude Comparator - 4 - Non-Inverting Surface Mount TSSOP 16 -5.2mA 5.2mA 33 ns @ 6 V, 39 ns @ 4.5 V, 195 ns @ 2 V 5 x 4.4 x 1.15mm 1.15mm
RS庫存編號 663-0660
製造零件編號CD74HCT85M
HK$11.676
/個 (每包:10個)
單位
HCT Magnitude Comparator AB 4 - Non-Inverting Surface Mount SOIC 16 -4mA 4mA 40 ns@ 4.5 V 9.9 x 3.91 x 1.58mm 1.58mm
RS庫存編號 145-0454
製造零件編號SN74HC688DW
HK$8.14
毎管:25 個
單位
HC Identity Comparator A=B 8 - Inverting Surface Mount SOIC 20 -5.2mA 5.2mA 36 ns @ 6 V, 42 ns @ 4.5 V, 210 ns @ 2 V 12.8 x 7.52 x 2.35mm 2.35mm
RS庫存編號 663-2209
製造零件編號SN74HC688DW
HK$9.453
/個 (每包:10個)
單位
HC Identity Comparator A=B 8 - Inverting Surface Mount SOIC 20 -5.2mA 5.2mA 36 ns @ 6 V, 42 ns @ 4.5 V, 210 ns @ 2 V 12.8 x 7.52 x 2.35mm 2.35mm
RS庫存編號 663-0650
製造零件編號CD74HCT688E
HK$8.442
/個 (每包:5個)
單位
HCT Identity Comparator A=B 8 - Inverting Through Hole PDIP 20 -4mA 4mA 34 ns @ 4.5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 442-763
製造零件編號SN74ALS520N
HK$24.45
單位
ALS Identity Comparator A=B 8bit Push-Pull Inverting Through Hole PDIP 20 -2.6mA 24mA 20 ns @ 5.5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 145-0441
製造零件編號CD74HCT688E
HK$7.623
毎管:20 個
單位
HCT Identity Comparator A=B 8 - Inverting Through Hole PDIP 20 -4mA 4mA 34 ns @ 4.5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 663-0414
製造零件編號CD74HC688M
HK$17.43
/個 (每包:5個)
單位
HC Identity Comparator A=B 8 - Inverting Surface Mount SOIC 20 -5.2mA 5.2mA 29 ns @ 6 V, 34 ns @ 4.5 V, 170 ns @ 2 V 12.8 x 7.52 x 2.35mm 2.35mm
RS庫存編號 145-6298
製造零件編號SN74ALS520N
HK$18.83
毎管:20 個
單位
ALS Identity Comparator A=B 8 Push-Pull Inverting Through Hole PDIP 20 -2.6mA 24mA 20 ns @ 5.5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 442-779
製造零件編號SN74ALS521N
HK$19.03
單位
ALS Identity Comparator A=B 8 Push-Pull Inverting Through Hole PDIP 20 -2.6mA 24mA 20 ns @ 5.5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 145-0442
製造零件編號CD74HCT688M
HK$6.232
毎管:25 個
單位
HCT Identity Comparator A=B 8 - Inverting Surface Mount SOIC 20 -4mA 4mA 34 ns @ 4.5 V 12.8 x 7.52 x 2.35mm 2.35mm
RS庫存編號 662-7207
製造零件編號CD74HC85PWR
HK$7.959
/個 (每包:10個)
單位
HC Magnitude Comparator AB 4 - Non-Inverting Surface Mount TSSOP 16 -5.2mA 5.2mA 33 ns@ 6 V, 39 ns@ 4.5 V, 195 ns@ 2 V 5 x 4.4 x 1.15mm 1.15mm
RS庫存編號 145-0817
製造零件編號SN74LS682N
HK$21.567
毎管:20 個
單位
LS Magnitude Comparator - 8 Push-Pull Inverting Through Hole PDIP 20 -0.4mA 24mA 30 ns @ 5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 663-0654
製造零件編號CD74HCT688M
HK$8.18
/個 (每包:5個)
單位
HCT Identity Comparator A=B 8 - Inverting Surface Mount SOIC 20 -4mA 4mA 34 ns @ 4.5 V 12.8 x 7.52 x 2.35mm 2.35mm
RS庫存編號 145-6017
製造零件編號SN74LS684N
HK$50.132
毎管:20 個
單位
LS Magnitude Comparator - 8 Push-Pull Inverting Through Hole PDIP 20 -0.4mA 24mA 30 ns @ 5 V 24.33 x 6.35 x 4.57mm 4.57mm
RS庫存編號 145-0386
製造零件編號SN74LS85N
HK$13.293
毎管:25 個
單位
LS Magnitude Comparator - 4 - Non-Inverting Through Hole PDIP 16 -0.4mA 8mA 45 ns @ 5 V 19.3 x 6.35 x 4.57mm 4.57mm
RS庫存編號 302-895
製造零件編號SN74LS682N
HK$23.99
單位
LS Magnitude Comparator A=B, A>B 8 Push-Pull Inverting Through Hole PDIP 20 -0.4mA 24mA 30 ns@ 5 V 24.33 x 6.35 x 4.57mm 4.57mm