CD4033BE - Decoded CMOS Decade Counter | Texas Instruments
部品番号: CD4033BE ✓ 生産中CD4033BE 概要
A decade counter is a sequential logic device that advances through ten states and then returns to zero. The CD4033BE belongs to the CMOS logic family, whose low static power and broad supply-voltage operating capability are useful in battery-powered and low-power display equipment. Its decoded outputs reduce the external logic count required to translate counter state into the a-through-g segment signals needed by a common-cathode seven-segment display. The chip therefore combines counter, divider, and display-interface functions in one package.
Key features include counter and 7-segment decoding in one package, easy interfacing with common seven-segment display types, fully static counter operation from DC to 6 MHz typically at VPP = 10 V, and low-power operation suited to display equipment. A display-enable output provides control over the decoded segment outputs. Ripple blanking is intended to suppress undesirable display transitions, while the lamp-test function supports display testing. These features reduce external component count and simplify compact counter modules.
Technically, the device uses a 5-stage Johnson counter followed by a decoder that converts the counter state into seven segment outputs. The decoded interface is designed for one numerical display stage, so a multidigit display generally requires additional counters and appropriate inter-digit blanking arrangements. The manufacturer identifies the device as a CMOS decade counter/divider, and distributor listings describe it as a one-element, 5-bit, positive-edge counter. Detailed operating-voltage limits, output-drive ratings, input leakage, and timing tolerances were not included in the supplied source data and therefore require confirmation in the manufacturer datasheet.
Typical uses include standalone decimal counters, laboratory timing references, educational counter trainers, appliance control panels, pulse-counting displays, and compact digital instruments. In a pulse-counter display, the CLOCK input receives the event signal, RESET returns the count to zero, and the decoded outputs drive the segment driver stage. The integrated lamp-test and ripple-blanking functions are particularly useful when operators need to identify failed display segments or avoid visible flicker during counting transitions.
When laying out a CD4033BE circuit, account for CMOS input behavior, unused-input handling, supply decoupling, and display-current limits. Because the supplied evidence does not provide complete electrical tables or a verified pin-by-pin diagram, engineers should confirm pin connectivity, maximum supply voltage, output current, clock edge behavior, and timing limits against the official Texas Instruments CD4033B documentation before fabrication.
This page consolidates the verified manufacturer description, distributor identification, pricing reference, package information, application guidance, and drop-in-replacement constraints for CD4033BE. It also distinguishes documented characteristics from parameters that still require direct datasheet confirmation, avoiding unsupported precision where the retrieved data is incomplete.
ドロップイン代替品: CD4033BE — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: CD4033BE （同一形状・フットプリント） — 相違点: Display Output, Logic Family.
CD4033BM
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
CD4033BE 最大定格＆電気的特性
| Product Type | CMOS decade counter/divider with decoded 7-segment display outputs |
| Manufacturer | Texas Instruments |
| Counter Configuration | 1 decade counter element |
| Counter State Width | 5 bit |
| Clock Edge | Positive edge |
| Fully Static Counter Frequency | DC to 6 MHz typical at VPP = 10 V |
| Internal Counter Architecture | 5-stage Johnson decade counter |
| Display Output | Decoded 7-segment output for one numerical display stage |
| Display Enable | Display-enable output |
| Ripple Blanking | Supported |
| Lamp Test | Supported |
| Logic Family | CMOS |
| パッケージ | 16-PDIP |
| 実装タイプ | Through-hole |
CD4033BE 16-pdip ピン配置ガイド
CD4033BE (16-pdip パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: CD4033BE.
詳細は データシート をご参照ください。
主な用途
CD4033BE の用途: 6 件s: Standalone Decimal Counter, Laboratory Pulse Counter, Educational Counter Trainer, Appliance Control Panel Display, Timing and Interval Display, Low-Power Digital Instrument.
Standalone Decimal Counter
The Texas Instruments CD4033BE suits a standalone decimal counter because it combines a 5-stage Johnson counter with decoded seven-segment outputs in one 16-PDIP package. Positive-edge clocking provides a straightforward event-counting interface, while the integrated decoder reduces the number of external packages required to show the count. The verified manufacturer information states that fully static operation reaches 6 MHz typical at VPP = 10 V, making the device appropriate for counted-event displays where that operating point has adequate timing margin. Reset returns the counter to its zero state, and the display-enable output can control whether the decoded segments are visible.
Laboratory Pulse Counter
CD4033BE can present counted laboratory pulses directly on a numerical display without requiring a separate BCD-to-seven-segment decoder. The counter accepts a positive-edge clock signal, maintains a five-bit decade state, and provides decoded segment outputs for one display stage. Its documented fully static range of DC to 6 MHz typical at VPP = 10 V provides useful headroom for many low- to moderate-frequency counting tasks. The main engineering checks are clock pulse width, supply voltage, segment load, and display polarity, none of which were fully quantified in the supplied source snippets.
Educational Counter Trainer
The Texas Instruments CD4033BE is appropriate for electronics education because its external behavior is visible through a decoded numerical display while the counter and decoder remain integrated in one package. Students can observe how positive-edge clock pulses advance a five-bit Johnson decade counter and how display enable controls segment visibility. The lamp-test function also provides a practical way to identify inactive display segments. A 16-pin PDIP package is convenient for breadboard and through-hole teaching boards, although the instructor must follow the official pin configuration rather than relying on an unverified diagram.
Appliance Control Panel Display
CD4033BE can reduce the logic count in compact appliance panels that need a visible decade count or step indicator. The decoded seven-segment interface directly serves one numerical display stage, while reset and clock inputs support user-controlled sequencing. Ripple blanking is useful when adjacent digits are coordinated, and the integrated display-enable output allows the firmware or surrounding control logic to blank the display during inactive periods. Before selection, verify the display’s common-anode or common-cathode polarity, segment current, and the required supply voltage against the complete manufacturer electrical tables.
Timing and Interval Display
The CD4033BE can serve as the display and counting section of a simple timing or interval module. Clock events advance the internal Johnson counter and decoded outputs present the current decade state, while a reset input establishes a known starting condition. The verified operating point of DC to 6 MHz typical at VPP = 10 V covers counter frequencies above many human-paced timing applications, but the actual maximum must be checked for the chosen supply, temperature, and clock duty cycle. Display multiplex timing and segment-drive limits remain the primary implementation constraints.
Low-Power Digital Instrument
Texas Instruments CD4033BE is suitable for low-power digital instruments that need compact numerical indication with limited logic-package count. Its CMOS implementation, integrated seven-segment decoder, display enable, ripple blanking, and lamp test support practical counter modules without a separate display decoder. The 16-PDIP package simplifies prototype assembly, though modern compact products may require careful planning around through-hole footprint availability. Power budget, display loading, and unused CMOS inputs must be evaluated from the full datasheet because the retrieved snippets do not provide quiescent-current or input-leakage figures.
エンジニアリング参考データ: CD4033BE — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
Use CD4033BM when its verified temperature grade is appropriate for the target environment and the same decoded-counter architecture and PDIP footprint are required. Do not select CD4026BE as an automatic drop-in replacement because its decoded-output feature set differs. For cross-brand alternatives, require a documented match for all 16 terminals, display polarity, counter timing, supply range, output current, ripple blanking, and lamp test. Also consider whether a modern counter IC with serial or driver-based display control would be easier to source and support, especially for new compact battery-powered products.
代替品との比較
| パラメータ | この製品 | CD4033BM |
|---|---|---|
| Package | 16-PDIP | 16-PDIP |
| Brand | Texas Instruments | Texas Instruments |
| Product Type | CMOS decade counter/divider | CMOS decade counter/divider |
| Counter Elements | 1 element | 1 element |
| Counter State Width | 5 bit | 5 bit |
| Clock Edge | Positive edge | Positive edge |
| Fully Static Counter Frequency | DC to 6 MHz typical at VPP = 10 V | DC to 6 MHz typical at VPP = 10 V |
| Display Outputs | Decoded 7-segment outputs | Decoded 7-segment outputs |
| Special Functions | Display enable, ripple blanking, and lamp test | Display enable, ripple blanking, and lamp test |
主な差別化要因
- Integrated counter and seven-segment decoding （vs CD4026BE)
- Built-in display maintenance functions （vs CD4026BE)
- 特長 （vs Discrete counter and decoder implementation)
設計ノート
Do not treat CD4026B as a drop-in substitute for CD4033BE merely because both decode a decade count for seven-segment displays. The verified comparison material distinguishes their output features, including the CD4033B combination of ripple blanking and lamp test. Before substituting, compare every terminal, segment polarity, display-enable behavior, supply range, and timing rating against the official datasheets.
Use the official CD4033B pin configuration to establish the 16-PDIP footprint and route CLOCK, RESET, display-enable, and decoded segment outputs. Keep the counter clock path away from segment outputs and any external switching nodes where practical. The supplied sources did not include a verified pin-by-pin diagram, so creating a layout from generic CD4000-series conventions could create net-assignment errors.
Confirm the permitted supply-voltage range and output-drive limits in the complete Texas Instruments datasheet before connecting a display. The decoded segment outputs may source or sink different current depending on display polarity and configuration. Select current-limiting resistors and driver topology based on those verified ratings rather than assuming that all seven outputs have identical static-drive capability.
Treat the CLOCK input as a sensitive sequential-logic node and provide a clean, predictable edge. Avoid routing it beside high-current display return paths, and ensure its amplitude and pulse width satisfy the verified timing limits for the selected supply voltage. The stated DC-to-6 MHz typical capability at VPP = 10 V is not a guaranteed operating range across all voltages and temperatures.
コンプライアンス情報
The supplied verified snippets did not include explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements. AEC-Q100 is not applicable because CD4033BE is a general-purpose CMOS logic IC rather than an automotive-qualified device.
