CD4516BE - 4-Bit CMOS Binary Up/Down Counter | Texas Instruments
MPN: CD4516BE ✓ نشطCD4516BE نظرة عامة
A CMOS binary counter is a synchronous digital logic device that stores a four-bit count and increments or decrements that count on a clock edge. The CD4516BE belongs to the CD4000 CMOS logic family, which is commonly used for low-power control, timing, sequencing, and industrial interface designs where operation across a broad supply-voltage range is useful.
The principal features include 4-bit binary counting, programmable up/down direction, synchronous internal carry propagation, and reset and preset controls. According to the Texas Instruments CD4516B data sheet, the device has a typical maximum clock frequency of 8 MHz at 10 V and is tested for quiescent current at 20 V. These characteristics make it suitable for event sequencing, frequency division, programmable timing, and compact digital state machines.
The counter uses four synchronously clocked D-type flip-flops with gating that provides T-type flip-flop behavior. Synchronous operation means the counting state changes on the active clock edge rather than through ripple transitions, simplifying control logic and making output behavior easier to predict when several counters are cascaded. The carry output supports expansion beyond four bits when greater counting range is required.
Typical uses include industrial counters, frequency-divider circuits, programmable timers, sequence generators, test equipment, and digital control systems. The broad supply range of 3 V to 18 V also permits operation from common low-voltage logic rails and higher-voltage industrial control supplies, subject to the logic-level requirements of connected devices.
When laying out a design, treat every unused input as a defined logic state rather than leaving it floating. Place bypass capacitors close to the supply pins, route clock traces away from noisy analog or high-current paths, and observe the manufacturer’s voltage-level and absolute-maximum limits. A pull-down or pull-up may be appropriate for unused count-direction, load, reset, or preset inputs depending on the desired operating state.
This page combines the manufacturer’s operating information, practical counter design guidance, pin-function context, and a focused comparison with documented interchange candidates. It helps engineers identify the CD4516BE for legacy CMOS logic designs while making package, voltage, timing, and sourcing constraints explicit before PCB or production decisions are finalized.
بدائل مباشرة لـ CD4516BE — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
CD4516BCN
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MC14016BC
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
HEF4516BP
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
CD4516BE الحدود القصوى والخصائص الكهربائية
| Counter Type | 4-bit binary up/down counter |
| Logic Family | CD4000 CMOS |
| Counting Mode | Synchronous up/down |
| Counter Width | 4 bit |
| أقصى تردد للساعة | 8 MHz typical at 10 V |
| Operating Supply Voltage Range | 3 V to 18 V |
| Quiescent Current Test Voltage | 20 V |
| Reset Capability | Yes |
| Preset Capability | Yes |
| Carry Propagation | Synchronous internal carry propagation |
| Internal Architecture | Four synchronously clocked D-type flip-flops with T-type gating |
| Output Characteristics | Standardized symmetrical output characteristics |
| Parametric Ratings | 5 V, 10 V, and 15 V ratings |
| Package Type | 16-pin dual in-line plastic package |
| عدد الأطراف | 16 pins |
| نوع التركيب | Through-hole |
| Manufacturer | Texas Instruments |
دليل تكوين أطراف CD4516BE 16-pin dual in-line plastic package
تكوين الأطراف لـ CD4516BE (حزمة 16-pin dual in-line plastic package). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ CD4516BE.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
CD4516BE مناسب لـ 6 التطبيقs: Industrial Event and Sequence Counter, Programmable Frequency Divider, Digital Timer and Batch Counter, Frequency Division and Clock Scaling, Test and Measurement Counter, Legacy Through-Hole Logic Retrofit.
Industrial Event and Sequence Counter
The CD4516BE suits industrial event-counting and sequence-control circuits because it provides a 4-bit binary count, selectable up/down operation, reset, and parallel preset functions in one device. Its 3 V to 18 V operating range supports logic systems operating near 5 V, 10 V, or 15 V. The counter can be clocked by qualified sensor pulses or a system timing signal, with the carry output assisting expansion to additional count stages. Synchronous counting makes the output state easier to sample in control systems. Designers should still condition noisy sensor signals, provide defined levels to unused inputs, and validate clock timing at the actual supply voltage.
موصى به
Programmable Frequency Divider
A CD4516BE can implement a programmable frequency divider when its count is preset to a selected value and then allowed to count toward the terminal state. The 4-bit binary architecture supports divisions based on values from 0 through 15, while the up/down control permits different counting conventions. With an 8 MHz typical clock frequency at 10 V, the device can process substantially faster inputs than many legacy low-speed counter systems. Designers should account for propagation delay when decoding carry or output transitions and should avoid changing the preset value near an active clock edge to prevent an indeterminate count sequence.
موصى به
Digital Timer and Batch Counter
The CD4516BE is appropriate for batch-counting and simple timer designs because reset and parallel preset let the engineer establish a repeatable starting count without relying only on power-on behavior. A count of 15 followed by carry detection can represent a 16-event batch, while cascaded stages extend the range. The broad 3 V to 18 V supply range makes the counter useful in legacy industrial control cabinets where a 5 V or 10 V logic rail is common. For reliable operation, synchronize preset changes away from the clock edge and use the carry signal only after allowing for counter propagation delay.
موصى به
Frequency Division and Clock Scaling
The CD4516BE can divide a periodic clock into lower-rate pulses or count a selected number of input cycles before issuing a carry event. Its synchronous internal carry propagation supports repeatable multi-stage division, while the 8 MHz typical operating frequency at 10 V provides useful margin for legacy CMOS designs. Preset and reset allow the divide ratio and starting state to be established by external logic. The counter is best suited to moderate-rate industrial or educational timing rather than modern high-speed timing chains. Keep the clock trace short, use a suitable clock source, and check setup and hold requirements before adding asynchronous preset control.
موصى به
Test and Measurement Counter
The CD4516BE can form the counting section of a simple test fixture, event totalizer, or repetitive measurement controller. Preset permits the operator or test system to select a measurement interval, reset establishes a deterministic starting condition, and carry marks completion of the selected count. With a 3 V to 18 V operating range, the counter can interface with many legacy instrumentation signal levels. A practical design should electrically isolate high-speed or high-voltage test inputs, convert them to compatible CMOS levels, and debounce mechanical or relay contacts. Validate all threshold, timing, and temperature details against the manufacturer data sheet.
موصى به
Legacy Through-Hole Logic Retrofit
The CD4516BE is well suited to repairing or extending a legacy 16-pin through-hole CMOS design because it preserves the established counter architecture in a PDIP package. Technicians can replace a failed device without redesigning the board around a fine-pitch surface-mount footprint. The 3 V to 18 V supply range and 8 MHz typical clock rate at 10 V support many vintage industrial, educational, control, and timing circuits. Before replacement, verify pin orientation, supply polarity, unused-input states, and signal levels. If the original circuit uses unusual preset or reset timing, reproduce those conditions in bench testing before returning the equipment to service.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ CD4516BE — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | CD4516BCN | MC14016BC | HEF4516BP |
|---|---|---|---|---|
| Brand | Texas Instruments | onsemi | onsemi | NXP Semiconductors |
| Package | 16-pin PDIP | 16-pin PDIP | 16-pin PDIP | 16-pin PDIP |
| Counter Width | 4 bit | 4 bit | 4 bit | 4 bit |
| Counting Direction | Up/down | Up/down | Up/down | Up/down |
| Counting Architecture | Synchronous | Synchronous | Synchronous | Synchronous |
أبرز الفروقات
- Documented 4-bit synchronous binary up/down operation (مقابلCD4516BCN)
- Broad 3 V to 18 V supply operation (مقابلMC14016BC)
- Manufacturer-documented 5 V, 10 V, and 15 V parametric ratings (مقابلHEF4516BP)
ملاحظات التصميم
Do not leave the up/down, load, reset, preset, or unused data inputs floating. A floating control can consume extra current or cause indeterminate counter transitions. Define every unused input with a pull resistor or a valid driver, and change asynchronous preset or reset signals only when the clock timing permits a stable result.
Place the supply bypass capacitor close to the device power pins and keep the loop between the capacitor and the IC short. Route the clock with a continuous ground reference and avoid passing it beneath long digital bus traces. In a mixed analog-and-digital system, keep the counter return current away from sensitive sensor and amplifier grounding paths.
Treat the 8 MHz typical clock rating as a 10 V condition, not a guarantee at every supply voltage. Check the propagation-delay and maximum-frequency curves in the manufacturer data sheet at the actual rail. Preserve clock edge shape, use a suitable source impedance, and avoid excessive capacitance on count, preset, or clock nets.
The CD4516BE operates from 3 V to 18 V, but downstream devices must recognize the counter’s output levels at the selected supply. Verify input and output thresholds rather than relying on a logic-family label. Decouple the supply locally and account for counter quiescent current in low-power designs where the CMOS input leakage and transition activity can dominate the power budget.
معلومات الامتثال
The CD4516BE is a general-purpose CMOS logic IC rather than an automotive-qualified device. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from the current manufacturer product documentation.
