CD4063BE 4-Bit Magnitude Comparator | Texas Instruments
Référence : CD4063BE ✓ ActifCD4063BE Présentation
A magnitude comparator is a logic IC that compares two multi-bit numeric operands and produces separate results for the less-than, equal-to, and greater-than conditions. In the digital electronics hierarchy, the CD4063BE belongs to the comparator and logic IC category, within the broader CMOS and semiconductor families. Its three outputs allow a system to respond immediately to the relationship between the two input words rather than performing the comparison through multiple gate-level operations.
The CD4063BE provides a practical four-bit comparison function using binary or BCD-coded inputs. The active-high A<B, A=B, and A>B outputs make the results easy to combine with other CMOS logic. Three cascading inputs allow multiple comparator sections to be connected when the application requires comparison beyond four bits. The 16-lead plastic dual-inline package provides through-hole assembly and a conventional DIP footprint.
Because the CD4063BE is a CMOS comparator, its design emphasizes low power consumption and compatibility with other CD4000-series logic. The device is suitable for digital control systems, industrial controllers, counters, sorting networks, and computer interface logic. The provided manufacturer and distributor information identifies the operating family as CD4063B and the E suffix as the 16-lead plastic dual-inline package option.
Typical uses include comparing accumulated digital measurements, resolving priority among several encoded inputs, detecting when a counter has reached a threshold, and supporting arithmetic or sequencing logic. The cascading feature is particularly useful for larger designs, but propagation delay must be considered when multiple stages are combined.
The principal design consideration is ensuring that all unused CMOS inputs are connected to a defined logic level and that supply and signal levels remain within the device’s specified operating limits. Because those voltage and timing values were not included in the supplied verified data, engineers should confirm them in the manufacturer datasheet before finalizing a design. Input and output decoupling and clean grounding remain important in systems containing switching noise.
This product page combines verified manufacturer and distributor information with practical comparison guidance, replacement considerations, and design notes that are not consolidated in a single manufacturer document. It is intended to help engineers identify the correct logic function, package, sourcing route, and application fit before committing the CD4063BE to a PCB design.
Alternatives de remplacement direct pour CD4063BE — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec CD4063BE (même facteur de forme et même empreinte) — différant par Package, Logic Family, Mounting Type, Cascading Inputs, Product Type.
CD4063BEG4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CD4585BE
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →MC14555BCP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CD4063B
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CD4063BE
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →CD4063BE Valeurs maximales et caractéristiques électriques
| Fonction | 4-bit magnitude comparator |
| Comparison Inputs | 8 inputs: A3-A0 and B3-B0 |
| Comparison Outputs | 3 active-high outputs: A<B, A=B, A>B |
| Cascading Inputs | 3 cascading inputs |
| Supported Number Formats | Binary or BCD |
| Logic Family | CMOS CD4000 series |
| Boîtier | 16-lead PDIP |
| Lead Pitch | 7.62 mm |
| Type de montage | Through-hole |
Configuration des broches de CD4063BE
| Broche 1 | A3 — A-word input bit 3 |
| Broche 2 | A2 — A-word input bit 2 |
| Broche 3 | A1 — A-word input bit 1 |
| Broche 4 | A0 — A-word input bit 0 |
| Broche 5 | B0 — B-word input bit 0 |
| Broche 6 | B1 — B-word input bit 1 |
| Broche 7 | B2 — B-word input bit 2 |
| Broche 8 | B3 — B-word input bit 3 |
| Broche 9 | A<B — Active-high less-than output |
| Broche 10 | A=B — Active-high equal-to output |
| Broche 11 | A>B — Active-high greater-than output |
| Broche 12 | VDD — Positive supply voltage |
| Broche 13 | VSS — Ground reference |
| Broche 14 | A>B — Cascading input for greater-than comparison |
| Broche 15 | A=B — Cascading input for equal-to comparison |
| Broche 16 | A<B — Cascading input for less-than comparison |
Applications typiques
CD4063BE convient pour 6 applications: Digital Counter Threshold Detection, Industrial Sorting and Routing Logic, Computer Address and Control Comparison, BCD Measurement Display Interface, Multi-Bit Priority Detection, Educational Logic and Processor Demonstration.
Digital Counter Threshold Detection
The CD4063BE fits counter threshold detection because it compares two 4-bit words and produces separate active-high A<B, A=B, and A>B outputs. A counter value can be presented to the A inputs while a programmed threshold is applied to the B inputs, allowing the circuit to flag when the count is below, equal to, or above the selected value. The 16-lead PDIP package is convenient for through-hole control boards and prototype assemblies.
Recommandé
Industrial Sorting and Routing Logic
The CD4063BE is suitable for industrial sorting and routing logic where encoded items must be classified by numeric priority. Eight comparison inputs accept the 4-bit A and B operands, while the three active-high result outputs can control a diverter, latch, or alarm path. Cascading inputs provide a route to larger comparison widths, although propagation delay must be included in the timing budget for synchronized machinery.
Recommandé
Computer Address and Control Comparison
The CD4063BE can compare encoded addresses or control words in computer and logic subsystems. Its binary or BCD input capability supports both conventional numeric data and decimal-coded values, while the less-than, equal-to, and greater-than outputs provide useful branching conditions for address decoding and state-machine control. The 16-lead PDIP package also makes the device practical for legacy through-hole control systems.
Recommandé
BCD Measurement Display Interface
The CD4063BE can compare two BCD-coded values in digital panel and measurement systems. A BCD counter or decade-counter output may be compared against a stored limit, with A<B, A=B, and A>B outputs driving display-enable, alarm, or preset logic. This use leverages the comparator’s documented support for BCD as well as binary and avoids implementing the comparison with multiple dedicated gate packages.
Recommandé
Multi-Bit Priority Detection
The CD4063BE is useful in priority-detection circuits that compare a changing request value against one or more reference values. The active-high equality output can qualify a state, while the greater-than and less-than outputs establish ordering conditions. Cascading allows engineers to extend the comparison range beyond four bits, but each additional section introduces extra propagation delay that must be checked against setup and hold requirements.
Recommandé
Educational Logic and Processor Demonstration
The CD4063BE is well suited to educational demonstrations of arithmetic comparison because it shows the relationship between two 4-bit operands in a single package. Students can observe how binary and BCD coding changes the comparison result and how cascade pins are used for wider comparisons. The transparent through-hole PDIP package also makes it accessible for breadboard, solderless-board, and laboratory experiments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour CD4063BE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | CD4063BEG4 | CD4585BE | MC14555BCP |
|---|---|---|---|---|
| Package | 16-lead PDIP | 16-lead PDIP | 16-lead PDIP | 16-lead PDIP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi |
| Function | 4-bit magnitude comparator | 4-bit magnitude comparator | 4-bit comparator | 4-bit magnitude comparator |
| Logic Family | CMOS CD4000 series | CMOS CD4000 series | CMOS logic | CMOS logic |
Principaux différenciateurs
- Documented compatibility with the standard 7485 TTL pin arrangement (vs CD4585BE)
- Supports both binary and BCD 4-bit operands (vs MC14555BCP)
- Complete three-result comparison interface (vs CD4585BE)
Notes de conception
Do not treat a related 4-bit comparator as interchangeable without checking the complete pin map. Verify the A and B input ordering, the positions of A<B, A=B, and A>B, the cascade pins, and the power pins against the manufacturer datasheet. The verified TI product page specifically identifies CD4063B as pin-compatible with the standard 7485 TTL type, but that statement should not be extended to every CD4000-series comparator.
Confirm the supply-voltage range and input thresholds from the manufacturer datasheet before connecting the CD4063BE to mixed CMOS or TTL logic. The verified web data establishes the CMOS CD4000-series architecture but does not provide the complete voltage or current tables. Use a supply decoupling capacitor close to VDD and VSS, and route return current through a low-impedance ground path.
The three cascade inputs extend comparison beyond four bits, but each additional comparator stage adds propagation delay. Establish setup and hold timing around the master and slave sections, and avoid using cascaded outputs where a single-stage decision is required at a faster edge rate. Clocked systems should also prevent input transitions near active clock edges if their source devices do not guarantee clean timing.
Informations de conformité
The supplied verified web data identifies the CD4063B family and package options but does not provide extractable RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance fields remain unknown pending confirmation from the current manufacturer product documentation.
