CD4022BE - 4-Stage CMOS Octal Counter | Texas Instruments
Référence : CD4022BE ✓ ActifCD4022BE Présentation
A CMOS counter belongs to the logic IC family and is commonly used to divide an input frequency, generate sequential timing signals, or sequence multiple digital operations. The Johnson configuration in the CD4022B uses four internal stages and presents eight decoded outputs. Its decade-counter behavior provides eight active states, while the associated clock, reset, and clock-inhibit inputs control counting, initialization, and temporary stopping of the count sequence.
The principal operating features include fully static operation, standardized symmetrical output characteristics, and a typical operating frequency of 10 MHz at VDD = 10 V. The CD4022BE family is specified with 5 V, 10 V, and 15 V parametric ratings. Its quiescent-current production test is performed at 20 V, providing a defined screening condition for one of the most important static-power parameters of a CMOS counter.
The architecture uses positive-edge clocking and includes CLOCK, RESET, and CLOCK INHIBIT control inputs. Decoded outputs support applications that require mutually exclusive active states rather than a raw binary count bus. RESET establishes the starting count state, while CLOCK INHIBIT provides a direct control for preventing further state transitions. The logic operates from a supply and includes a 16-PDIP package intended for through-hole PCB assembly.
Typical uses include modulo-8 frequency division, eight-step sequencing, digital timing generation, programmable counters, industrial control logic, and embedded systems that need a compact eight-state sequence. In these circuits, the CD4022BE can reduce a repeated input pulse into a lower-frequency sequence while the eight decoded outputs provide mutually exclusive timing phases for sequential control or display-related functions.
Designers should account for the required supply voltage, input and output logic levels, clock pulse timing, and power behavior. Because RESET and CLOCK INHIBIT are active control functions, their inactive states must be defined and their transitions coordinated with the clock. The through-hole 16-PDIP footprint also requires adequate board spacing, appropriate pin alignment, and observation of the component pin-1 marking during assembly.
This product page combines the Texas Instruments CD4022B family characteristics, verified package information, sourcing data, application guidance, and a conservative drop-in replacement assessment. The comparison and design notes focus on the counter architecture, timing behavior, supply conditions, and PCB implementation considerations that help engineers evaluate the CD4022BE before incorporating it into a new circuit.
Alternatives de remplacement direct pour CD4022BE — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
CD4022BE
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| Logic Type | CMOS counter/divider |
| Counter Architecture | 4-stage Johnson counter |
| Number of Decoded Outputs | 8 outputs |
| Counter Element | 1 element |
| Counter Bits | 4 bits |
| Clock Edge | Positive edge |
| Typical Operating Frequency | 10 MHz at VDD = 10 V |
| Supply Parametric Ratings | 5 V, 10 V, and 15 V |
| Quiescent Current Test Condition | 20 V |
| Operating Mode | Fully static |
| Output Characteristics | Standardized, symmetrical |
| Control Inputs | CLOCK, RESET, and CLOCK INHIBIT |
| Package Type | 16-PDIP |
| Number of Leads | 16 leads |
| Type de montage | Through-hole |
Guide de configuration des broches du CD4022BE 16-pdip
Configuration des broches du CD4022BE (boîtier 16-pdip). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour CD4022BE.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
CD4022BE convient pour 6 applications: Modulo-8 Frequency Division, Eight-Step Digital Sequencing, Industrial Control Timing, Relay and Stepper Sequence Control, Digital Test and Measurement Timing, Clock-Domain Event Counting.
Modulo-8 Frequency Division
The CD4022BE suits modulo-8 frequency division because its 4-stage Johnson architecture produces eight decoded states from a repeated clock input. At the characterized point of 10 MHz typical at VDD = 10 V, it can process a medium-speed periodic signal and present eight mutually exclusive outputs. The circuit designer should verify the propagation-delay chain and setup requirements for the specific clock duty cycle rather than relying only on the typical maximum frequency.
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Eight-Step Digital Sequencing
Eight decoded outputs make the CD4022BE useful for programmable sequence generation in digital controllers. Each count state can activate one stage of a timing sequence, while RESET establishes a repeatable starting condition. With a typical 10 MHz operating frequency at VDD = 10 V, the counter supports medium-speed sequencing, although the slowest intended state duration should remain long enough to accommodate propagation delay and output-loading requirements.
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Industrial Control Timing
The CD4022BE can organize eight timing phases in industrial control and automation logic. Its CLOCK, RESET, and CLOCK INHIBIT inputs allow the counter to be initialized or held without changing the PCB architecture. The 5 V, 10 V, and 15 V parametric ratings provide defined supply points for design evaluation, while the 16-PDIP format supports conventional through-hole assembly and straightforward prototype servicing.
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Relay and Stepper Sequence Control
The eight decoded outputs of the CD4022BE can drive a sequence of control stages in relay, valve, or stepper positioning systems. Only one decoded output is active for each count state, reducing ambiguity when multiple actuator stages must not operate simultaneously. RESET returns the sequence to its defined initial state, and CLOCK INHIBIT can pause progression while maintaining the current output condition.
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Digital Test and Measurement Timing
A CD4022BE can divide a reference clock and create eight selectable timing phases for repetitive test sequences. The typical 10 MHz rating at VDD = 10 V is useful for medium-speed bench and embedded measurement systems. The design should include buffers when driving long traces or multiple loads because decoded-output drive and transition timing determine how cleanly adjacent phases remain separated.
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Clock-Domain Event Counting
The CD4022BE can count repeated events and expose their position as eight decoded logic levels. This arrangement is useful in basic event-counting, batch-completion, and cyclic-enable logic where a compact eight-state sequence is preferable to a wide binary bus. Because the counter is edge-triggered, the input clock must have clean transitions, and the maximum event rate should be checked against supply voltage and timing conditions.
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Récapitulatif des produits recommandés
Données de référence d'ingénierie pour CD4022BE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | CD4022BE |
|---|---|---|
| Manufacturer | Texas Instruments | Harris Corporation |
| Package | 16-PDIP | 16-PDIP |
| Counter Type | 4-stage Johnson counter | 4-stage Johnson counter |
| Decoded Outputs | 8 outputs | 8 outputs |
| Counter Element | 1 element | 1 element |
| Counter Bits | 4 bits | 4 bits |
| Clock Edge | Positive edge | Positive edge |
| Typical Operating Frequency | 10 MHz at VDD = 10 V | 10 MHz at VDD = 10 V |
| Supply Parametric Ratings | 5 V, 10 V, and 15 V | 5 V, 10 V, and 15 V |
| Operating Mode | Fully static | Fully static |
Principaux différenciateurs
- Eight decoded states from a four-stage counter (vs CD4026BE)
- Distinct Johnson-counter state organization (vs CD40192BE)
- Positive-edge operation with dedicated inhibit and reset controls (vs CD4020BK)
Notes de conception
Design the supply rail for the selected CD4022B parametric rating of 5 V, 10 V, or 15 V, and include local bypass capacitance at the device. The family is quiescent-current tested at 20 V, but that screening condition does not replace calculation of the actual supply load. Confirm output drive, input leakage, and timing at the lowest operating voltage and highest temperature expected in the equipment.
Treat the clock net as a timing-critical signal. Provide a clean rising edge, respect the input pulse-width and transition-time limits in the manufacturer documentation, and avoid routing the clock directly beneath noisy switching outputs. CLOCK INHIBIT and RESET should have defined inactive levels and clean transitions so glitches cannot create an unintended count or reset event.
Use the 16-PDIP footprint with the manufacturer pin-1 orientation and observe the physical lead spacing and board-hole pattern. Keep the counter close to the clock source when timing margin is limited, and reserve short, direct routes for decoded outputs that drive nearby logic. For long traces or multiple loads, use an appropriate buffer instead of assuming the counter output can drive an unrestricted capacitive load.
Informations de conformité
The Texas Instruments CD4022B documentation states that the family meets JEDEC tentative requirements. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation for the exact orderable part.