CD4024AT - 3V-12V CMOS Binary Counter | Texas Instruments
MPN： CD4024AT ✗ 停產CD4024AT 概覽
A CMOS ripple-carry binary counter is a digital logic IC that advances through a sequence of binary states when driven by an active clock edge. The broader hierarchy runs from counter and divider logic to digital logic, integrated logic, and semiconductor. Unlike asynchronous binary ripple counters, the CD4024 family includes reset and parallel data inputs that allow the count state to be loaded or cleared for deterministic system operation.
The CD4024AT combines a 3V to 12V supply range with a 14-pin CDIP package. The counter architecture supports use in digital clocks, industrial timing circuits, programmable dividers, and digital control systems. Its through-hole package also makes it practical for prototypes, repair assemblies, and industrial equipment where a socketed or leaded logic package is easier to assemble than a fine-pitch surface-mount device.
The part belongs to the CD4000 CMOS logic family, whose members use complementary metal-oxide-semiconductor technology. Operation from 3V to 12V places the device across common low-voltage logic environments, while the 14-pin through-hole format favors larger assemblies rather than compact handheld products. Engineers should consult the manufacturer datasheet for detailed truth tables, clock-edge behavior, output configuration, reset behavior, and electrical limits before finalizing a design.
Typical uses include binary event counting, divide-by-n timing generation, sequential control, industrial counters, and clocked digital subsystems. In a divider implementation, the counter output can define a lower-frequency timing event while external logic determines the useful modulus. In a sequencing system, reset and parallel-load functions allow a known starting state, which helps prevent an undefined count after power-up or fault recovery.
The primary design consideration is ensuring that clock, reset, and data inputs remain within their specified voltage and transition-time limits. PCB layout should keep clock routing short, provide a stable ground reference, and separate clock paths from sensitive analog or high-current switching nodes. Because this is a legacy-style CDIP logic device, designers should also confirm available package details and sourcing status before committing a new production design.
This page combines the verified CD4024AT identity, manufacturer-oriented documentation references, package information, design guidance, application analysis, and substitution constraints. It also distinguishes documented attributes from parameters that require confirmation from the datasheet, helping engineers evaluate the CD4024AT without assuming unpublished electrical limits or unqualified replacements.
直接替換替代品，適用於 CD4024AT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品CD4024AT 最大額定值與電氣特性
| Product Type | CMOS ripple-carry binary counter divider |
| Logic Family | CD4000 CMOS series |
| Supply Voltage Range | 3 V to 12 V |
| Counter Architecture | Ripple-carry binary counter |
| Temperature Grade | Military |
| Package Type | 14-pin CDIP |
| 安裝類型 | Through-hole |
CD4024AT 14-pin cdip 腳位配置指南
CD4024AT（14-pin cdip 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： CD4024AT.
請參閱 資料表 以查看完整腳位配置。
典型應用
CD4024AT 適用於 6 應用s: Industrial Event Counting, Frequency Divider and Timer, Digital Sequencer, Digital Clock Hour and Minute Tracking, Legacy Control Board Upgrade, Automated Test Sequence.
Industrial Event Counting
The CD4024AT is appropriate for counting discrete events in legacy industrial control equipment when the design requires a 3V to 12V CMOS logic part and a 14-pin through-hole footprint. It can receive clocked events and present a binary count for downstream control, diagnostics, or batch tracking. The 14-pin CDIP format simplifies socketed assembly, field repair, and insertion into larger through-hole control boards. Before implementation, confirm the counter capacity, output-drive characteristics, maximum clock rate, and reset behavior against the intended sensor event rate.
推薦
Frequency Divider and Timer
The CD4024AT can form the counting stage of a programmable timer or frequency divider when a system derives a lower-rate timing event from an incoming clock. Its documented 3V to 12V supply range supports low-voltage CMOS logic systems, while the counter outputs provide binary count states that can be decoded by surrounding gates. The useful modulus depends on the available count stages and the selected output. Verify maximum operating frequency, transition timing, and output loading in the manufacturer datasheet before setting the switching rate.
推薦
Digital Sequencer
A CD4024AT-based sequencer can use successive binary count states to advance a machine through repeatable operating steps. Reset and parallel-load functions, where supported by the documented device configuration, allow the sequence to begin from a known state instead of an arbitrary power-up value. This is useful in relay-control, test-sequence, and legacy automation equipment that uses a central clock. Design the reset path so it cannot trigger accidentally from supply noise, and confirm the active levels and truth-table behavior on the manufacturer datasheet.
推薦
Digital Clock Hour and Minute Tracking
The CD4024AT can participate in cascaded digital clock architectures where one counter tracks seconds or minutes and another stage represents a higher-order count. Binary outputs can be decoded into display-oriented signals or retained for timekeeping logic. The 3V to 12V operating range and through-hole package suit established control boards, but display decoding and rollover behavior must be designed around the exact counter outputs. Confirm cascade timing and reset sequencing to prevent count ambiguity during rollover or power restoration.
推薦
Legacy Control Board Upgrade
The CD4024AT is well suited to repairing or extending a legacy control board that already uses a 14-pin CDIP counter position. A through-hole package supports straightforward PCB layout, socket use, and manual assembly compared with a fine-pitch surface-mount alternative. The replacement decision should be based on an exact pin-description comparison, supply compatibility, clock-rate requirements, and qualification constraints rather than the family name alone. This is particularly useful when preserving the original board architecture is more valuable than redesigning it around a smaller package.
推薦
Automated Test Sequence
The CD4024AT can act as the binary state generator for an automated test fixture that advances through command or measurement stages on each clock. Its counter outputs allow external logic to select test channels, timing intervals, or relay states in a repeatable sequence. The 14-pin CDIP package is practical for fixtures assembled with through-hole construction, and the 3V to 12V supply range supports conventional CMOS control levels. Confirm the counter's usable state range, reset polarity, and maximum clock rate before defining the test-state map.
推薦
推薦產品摘要
工程參考資料，適用於 CD4024AT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Brand | Texas Instruments |
| Package | 14-pin CDIP |
| Product Type | CMOS ripple-carry binary counter divider |
| Supply Voltage Range | 3 V to 12 V |
| Temperature Grade | Military |
| Mounting Type | Through-hole |
| Logic Family | CD4000 CMOS series |
| Counter Architecture | Ripple-carry binary counter |
主要差異化特點
- Legacy-compatible 14-pin through-hole architecture (對比CD4060BK)
- Military temperature-grade designation (對比CD4020BK)
- Direct 3V to 12V CMOS operating range (對比CD4060BK)
設計說明
Use the manufacturer's 14-pin CDIP outline and pin-description table when laying out the PCB. Keep clock traces short and away from switching-node copper, relays, and high-current return paths. Place the device close enough to its support logic that clock propagation does not create excessive skew between counter stages. Verify every connection against the package diagram rather than a generic CD4024 drawing from another manufacturer.
Design reset, load, and clock inputs for clean CMOS transitions and avoid floating control nodes. If reset is decoded from another asynchronous circuit, use appropriate synchronization or qualification so an unintended reset pulse cannot corrupt the count. The exact maximum clock frequency, propagation delay, and transition limits must come from the manufacturer datasheet; do not infer safe operating speed from the 3V to 12V supply rating alone.
Do not substitute a CD4000-series counter solely because its logic family and supply rating match. Pin functions, count capacity, clock-edge behavior, reset polarity, parallel-load implementation, and output drive can differ even when the package family is similar. For a direct CD4024AT replacement, compare every terminal in the manufacturer pin table and validate the timing and lifecycle status before production release.
Follow the manufacturer's recommended supply bypass arrangement and use a low-inductance ground return. The CD4024AT operates from 3V to 12V, but operation at the upper end of that range does not remove the need for stable local decoupling. Check input thresholds and output levels at the actual supply voltage, especially when counter outputs drive non-CMOS loads or interface circuitry with different voltage requirements.
合規資訊
The CD4024AT is a CMOS logic IC rather than an automotive-qualified component. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from the current manufacturer product documentation or supplier declaration.
