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CD4511B - BCD-to-7-Segment Latch Decoder Driver | Texas Instruments
CD4511B

CD4511B - BCD-to-7-Segment Latch Decoder Driver | Texas Instruments

The CD4511B is a CMOS BCD-to-7-segment latch decoder driver from Texas Instruments, designed to convert binary-coded decimal (BCD) inputs into signals that drive common-cathode 7-segment LED displays. It combines the low quiescent power dissipation and high noise immunity of RCA CMOS technology with n-p-n bipolar output transistors capable of sourcing up to 25 mA per segment. This allows direct driving of LEDs without additional current buffers. The device is available in multiple 16-lead packages including PDIP (E suffix), SOIC (NSR suffix), and TSSOP (PW/PWR suffixes), making it suitable for through-hole and surface-mount designs. A BCD-to-7-segment decoder is a digital combinational circuit that translates a 4-bit BCD input (0000 to 1001) into the appropriate 7-segment display code (a-g). It is a fundamental building block in digital display systems, converting binary data into human-readable numeric output. The CD4511B belongs to the CD4000 series of CMOS logic ICs, which are known for wide supply voltage operation (3V to 18V), low power consumption, and high noise immunity. This decoder sits between a counter or microcontroller and the display, simplifying the interface and reducing the number of I/O pins required. Key features of the CD4511B include lamp test (LT), blanking (BL), and latch enable (LE) inputs. The lamp test input forces all segments on to verify display functionality. The blanking input can shut off the display or be used for intensity modulation via pulse-width modulation. The latch enable input stores the BCD code, allowing multiplexed displays where several digits share the same decoder. The device also features an internal pull-down on the BCD inputs, ensuring a defined logic level when inputs are floating. Technically, the CD4511B is fabricated on a single monolithic structure combining CMOS logic with bipolar output transistors, a process known as BiCMOS. This architecture provides the low power consumption of CMOS with the high current drive capability of bipolar transistors. The outputs are active-high and can source 25 mA, sufficient for driving standard LEDs with appropriate current-limiting resistors. The device operates over a supply voltage range of 3V to 18V, with a typical quiescent current of only 80 µA at 5V, making it suitable for battery-powered applications. Typical applications include digital clocks, frequency counters, digital voltmeters, and any system requiring numeric display. The CD4511B is often used with 7-segment LED displays in instrumentation, consumer electronics, and industrial control panels. Its ability to latch data makes it ideal for multiplexed display systems, reducing the number of decoder ICs needed. When designing with the CD4511B, ensure that the supply voltage is within the specified range and that current-limiting resistors are placed in series with each segment to prevent excessive current. The blanking input can be used for brightness control by applying a PWM signal. For multiplexed displays, the latch enable input should be pulsed after the BCD data is stable to avoid display flicker.

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CD4516BE - 4-Bit CMOS Binary Up/Down Counter | Texas Instruments
CD4516BE

CD4516BE - 4-Bit CMOS Binary Up/Down Counter | Texas Instruments

The Texas Instruments CD4516BE is a 4-bit CMOS presettable binary up/down counter with medium-speed synchronous operation, rated for 8 MHz typical clock frequency at a 10 V supply and housed in a 16-pin PDIP package. It combines synchronous counting, an internal carry function, reset, and parallel preset capability in a single counter IC. 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.

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CD4516BF - 4-Bit Binary Up/Down Counter | Texas Instruments
CD4516BF

CD4516BF - 4-Bit Binary Up/Down Counter | Texas Instruments

Texas Instruments CD4516BF is a 4-bit CMOS presettable binary up/down counter with a 16-pin CDIP package. It contains four synchronously clocked D-type flip-flops arranged as a T-type counting stage, supports parallel preset loading, and operates across the military temperature range of -55°C to +125°C. Its operating voltage and detailed dynamic performance must be confirmed in the manufacturer datasheet before design release. A CMOS binary counter is a sequential digital-logic IC used to count clock edges in a defined up or down direction. The CD4516B family belongs to the broader CMOS counter and counter/dividers category, integrating flip-flops, count-direction control, preset logic, and carry output in one package. It is useful when a system needs adjustable four-bit sequencing, frequency division, event counting, or programmable timing intervals without implementing the state machine from individual gate-level logic. Key characteristics include synchronous counting, binary counting format, four parallel preset inputs, active control for preset loading, and a carry output. According to the manufacturer documentation, maximum input current is 1 µA at 18 V over the full package-temperature range and 100 nA at 18 V and 25°C. Documented noise margins are 1 V at VDD = 5 V, 2 V at VDD = 10 V, and 2.5 V at VDD = 15 V. The counter architecture uses synchronously clocked D-type flip-flops with gating that provides T-type flip-flop behavior. This structure supports count-up and count-down operation while allowing a parallel preset value to establish the starting state. Because the CD4516BF is packaged in a 16-pin CDIP rather than a surface-mount package, it is especially appropriate for through-hole industrial, control, instrumentation, and legacy-system assemblies where leaded construction and a wide temperature range are priorities. Typical uses include digital time-base generation, batch and event counting, programmable sequence control, pulse accumulation, divide-by-two and divide-by-four clock generation, and test-equipment control logic. When connecting the device, preserve the counter's documented control-signal timing relationships, provide suitable logic levels for VDD and VSS, and account for unused inputs according to the manufacturer datasheet. The main design tradeoff is package footprint rather than functionality: CDIP-16 is mechanically durable and easy to inspect or prototype with, but it occupies more board area than a 16-pin surface-mount package and is generally not preferred for compact new products. Verify logic thresholds, propagation delays, clock-edge requirements, and absolute maximum ratings before substituting it into a newer design. This page combines the manufacturer's functional description, package and temperature information, electrical excerpts, compatible-part findings, and practical implementation guidance. It also highlights where engineers should consult the CD4516B datasheet for exact timing, supply-voltage limits, pin definitions, and recommended operating conditions rather than relying on general assumptions about CMOS counters.

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CD4518BE - Dual BCD Up-Counter, 8 MHz | Texas Instruments
CD4518BE

CD4518BE - Dual BCD Up-Counter, 8 MHz | Texas Instruments

The Texas Instruments CD4518BE is a dual four-bit BCD up-counter built with CMOS logic, supporting operation from 3 V to 18 V and clock frequencies up to 8 MHz in a 16-pin PDIP package. The device contains two internally synchronous four-stage counters that can count upward in binary-coded decimal, or BCD, format and may be operated with positive or negative clock transitions. A BCD counter is a digital counter whose four-bit output represents decimal digits from zero through nine. The CD4518 family combines two such counters in one package, allowing a design to maintain two independent count sequences without using two separate counter packages. Within the logic-component hierarchy, it is a CMOS counter IC, a member of the CD4000 logic series and a larger category of clock, timing, and state-sequencing semiconductors. Key features include two four-bit counting sections, internally synchronous four-stage counting, positive or negative clock-edge operation, and a maximum clock frequency of 8 MHz. Its 3 V to 18 V supply range permits use in conventional 5 V and 9 V logic systems as well as higher-voltage CMOS designs. The PDIP-16 package is suitable for through-hole assembly, prototyping, legacy industrial equipment, and educational or maintenance applications. Each counter section includes a clock input, a data-enable function, and four decade outputs. The device can be configured for cascading or extended counting when a larger number of decimal positions is required. Because each section uses synchronous internal stages, the output transitions occur on clock edges, allowing the counter to be used in frequency division, event sequencing, decade generation, and general digital timing systems. Typical applications include decade timing counters, pulse-counting panels, industrial sequence controllers, laboratory test fixtures, digital clocks, programmable counters, and embedded control logic that must represent decimal values directly. The two-counter architecture is particularly useful when a system requires two related count values, such as minutes and seconds, units and tens, or two independent event totals. Designers should use the manufacturer pin-description table when assigning PCB signals and should account for CMOS input behavior, unused outputs, reset release timing, and clock-edge polarity. This page combines the manufacturer product information, verified distributor listings, cross-reference findings, package details, and practical selection guidance for engineers evaluating the CD4518BE.

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CD4520BD - 4-Bit Binary Up Counter | Harris Corporation
CD4520BD

CD4520BD - 4-Bit Binary Up Counter | Harris Corporation

The Harris Corporation CD4520BD is a CMOS dual binary up-counter with two independent 4-bit counter elements, a maximum operating frequency of 8 MHz, and operation from 3 V to 18 V in a 16-pin SOIC package. The device provides separate clock and reset inputs for each counter, allowing two counting channels to operate independently within one package. A binary counter is a sequential digital-logic component that advances its output state whenever an active clock edge occurs. The CD4520BD belongs to the CMOS counter family, which is part of the broader logic IC hierarchy: counter → digital counter → sequential logic → logic IC → integrated circuit. Each 4-bit section can represent 16 binary states and may also be configured for divide-by-two operation according to the manufacturer documentation. Key verified characteristics include a 3 V to 18 V supply range, an 8 MHz maximum frequency, 80 ns timing, and positive-edge clock triggering. The bidirectional output capability allows the counter state to be observed from either the Q or complementary Q output. These features make the IC useful when a design requires repeatable binary sequencing, frequency division, timing generation, or event counting. The CD4520BD is implemented as a CMOS logic device, providing a practical combination of low power consumption and wide supply-voltage operation. Its operating range permits use in 5 V and higher-voltage logic systems where additional input or output voltage range is useful. The 16-pin SOIC package also supports conventional surface-mount assembly rather than requiring a through-hole footprint. Typical uses include divide-by-two clock conditioning, programmable digital timers, sequence generators, phase-delay counters, and general-purpose binary event-counting circuits. Two counter sections in one package can reduce board area when a design needs more than one independent counting channel and the required clock and reset arrangements match the device architecture. Designers should verify clock-edge behavior, reset polarity, output-drive requirements, and unused-input states against the manufacturer datasheet before layout. The 80 ns timing and 8 MHz frequency figures establish the device’s logic-speed context, but external signal fan-out, propagation delay, wiring, and supply level remain important when defining a complete operating point. This page consolidates the verified manufacturer and distributor information for CD4520BD, provides practical application guidance, records the available 3 V to 18 V and 8 MHz operating limits, and distinguishes verified drop-in evidence from substitute parts that could not be confirmed as pin-compatible.

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CD4520BE - Dual 4-Bit Binary Up-Counter | Texas Instruments
CD4520BE

CD4520BE - Dual 4-Bit Binary Up-Counter | Texas Instruments

The Texas Instruments CD4520BE is a CMOS dual 4-bit binary up-counter containing two identical, internally synchronous 4-stage counters. Each counter can increment on a positive-going or negative-going clock transition, and its clock and enable lines are interchangeable. The device is packaged in a 16-lead PDIP and is specified for operation from -55°C to 125°C. A binary counter is a sequential digital-logic component that stores a multi-bit numerical value and advances that value by one on each active clock event. The CD4520 family belongs to the CMOS logic hierarchy, where dual counters provide parallel state-holding and event-counting functions without requiring several separate flip-flop packages. Its two counters can be cascaded or operated independently to divide frequency, extend count range, or create multi-stage timing sequences. The CD4520BE provides two 4-bit counting sections, so each section represents binary values from 0 through 15 before rollover. Interchangeable clock and enable inputs provide flexibility in determining which edge advances the internal D-type flip-flop stages. The carry outputs allow additional counter sections to be cascaded, while the four parallel outputs for each counter expose the current binary state for decoding, event counting, or sequential control. The implementation uses CMOS stages with internally synchronous counting behavior. Positive-going and negative-going edge operation supports different clocking conventions, while separate enable inputs allow each counter to be held or advanced under independent control. The 16-pin PDIP format provides a conventional through-hole footprint suitable for industrial control, timing, and legacy-compatible logic systems. The manufacturer product page lists the CD4520BE in the active lifecycle state. Typical uses include frequency division, programmable timing, event and pulse counting, sequential industrial controls, and digital clock or timer subsystems. The dual-counter organization is particularly useful when a design needs two independent count sequences, two cascaded divider stages, or parallel outputs from two counters that can be combined by downstream logic. Designers should verify the counter's clock-edge requirement, maximum operating frequency, supply-voltage range, and output-drive capability against the manufacturer datasheet before setting timing margins. Input signals must remain within the specified CMOS logic levels, unused inputs should not be left floating, and decoupling should follow the datasheet's recommended application circuit. Cascade connections should be checked for propagation-delay accumulation across multiple stages. This page combines manufacturer specifications, package and lifecycle information, application guidance, comparison parameters, and verified drop-in alternatives. It also highlights where timing, electrical limits, or functional differences must be checked before substituting another member of the CD4520 family.

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CD4521BE - 24-Stage CMOS Frequency Divider | Texas Instruments
CD4521BE

CD4521BE - 24-Stage CMOS Frequency Divider | Texas Instruments

Texas Instruments CD4521BE is a CMOS 24-stage frequency divider with one 24-bit counter element, divide-by-2 operation, negative-edge triggering, and asynchronous reset in a 16-lead PDIP package. The device operates from 3 V to 18 V, supports counting rates up to 13 MHz, and is specified for temperatures from -55°C to +125°C. A frequency divider is a counter IC that converts an input waveform into a lower output frequency according to a defined division ratio. The CD4521BE belongs to the CD4000 CMOS logic family and combines a 24-stage ripple-counter section with oscillator-support circuitry. Its negative-edge counting behavior and asynchronous reset make it useful for digital timing, frequency reduction, and periodic-event generation systems. The principal operating characteristics are a 24-bit counting capacity, a single counter element, a maximum counting rate of 13 MHz, and a 3 V to 18 V supply range. The Divide-by-2 configuration supports binary frequency division, while the oscillator section can be configured with RC or crystal timing networks according to the manufacturer documentation. Asynchronous reset provides a direct method for returning the counter to a defined state. The CD4521B family is manufactured in multiple package options, but the CD4521BE ordering code identifies the 16-lead dual-in-line plastic package. A 16-pin PDIP offers a straightforward through-hole footprint and generous lead spacing for hand assembly, prototyping, repair, and educational or industrial control boards where surface-mount assembly is unnecessary. Typical uses include divide-by-two clock conditioning, waveform division in timing modules, programmable counters, digital clock circuits, industrial control logic, and oscillator-based frequency generation. In a divider circuit, the incoming clock is applied at the timing input and the resulting divided signal is taken from an appropriate counter output. Reset should be controlled so that it remains inactive during normal counting. The most important design consideration is to preserve the input signal's amplitude and transition timing relative to the supply voltage. Wiring should be kept short, unused inputs should be tied to a defined logic level, and decoupling should be placed close to the supply pins. Because the CD4521BE uses a through-hole package, lead length and assembly workmanship can materially affect clock reliability in high-frequency layouts. This product page organizes the confirmed ordering information, operating limits, package details, technical FAQ, application guidance, and design considerations into a practical engineering reference. It also separates confirmed manufacturer characteristics from parameters that require direct confirmation in the current datasheet, helping designers evaluate CD4521BE without relying on ambiguous or unsupported substitution data.

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CD4521BM - CMOS 24-Stage Frequency Divider | Texas Instruments
CD4521BM

CD4521BM - CMOS 24-Stage Frequency Divider | Texas Instruments

The Texas Instruments CD4521BM is a CMOS 24-stage frequency divider with oscillator support, supplied in a 16-pin Small Outline Integrated Circuit package. It combines an oscillator section with 24 ripple-carry binary counter stages, allowing an external RC or crystal oscillator to drive a programmable binary count sequence. The available device information identifies a 24-bit division structure, a CD4000-series CMOS logic family, and an operating temperature range of -55°C to +125°C. A high signal on RESET forces the counter into its all-zero state and disables the oscillator, while counting advances on the negative transition of IN1. A CMOS frequency divider is a type of sequential logic IC that divides an input clock by a fixed binary factor. In the broader semiconductor hierarchy, it belongs to counters and dividers, then logic ICs, and ultimately the wider digital semiconductor category. The CD4521BM is useful when a system needs long division ratios, a generated clock, or a cascaded timing chain without implementing the counter in a microcontroller or discrete flip-flop array. Its oscillator and counter sections provide a dedicated hardware function for timing and sequencing. The key verified characteristics include a 24-stage ripple-carry counter, 16-pin SOIC packaging, a -55°C to +125°C temperature range, and a 3 V minimum operating voltage as shown in the available cross-reference information. The counter is advanced on the negative transition of IN1, while RESET returns the state to all zeros and disables the oscillator. These characteristics make the device suitable for long-period timers, modulo counters, clock dividers, and low-frequency signal generation. The manufacturer identifies the circuit as a CMOS 24-stage frequency divider in its CD4521B product documentation. Because the oscillator can be configured with either RC or crystal components, the circuit supports a range of timing approaches. An unused oscillator input must be tied either HIGH or LOW, preventing an undefined input state. RESET provides a deterministic starting condition, and the multiple counter outputs allow different division ratios or timing phases to be observed. This architecture is particularly useful when one input frequency must be converted into several related output frequencies without continuous software intervention. The CD4521BM is supplied by Texas Instruments in a 16-pin SOIC package. The manufacturer product page provides the CD4521B family data sheet, while distributor records identify the CD4521BM ordering variant, tube packaging, and availability information. Its broad temperature rating supports industrial and instrumentation use, although designers must still verify the complete electrical limits, timing characteristics, and output-drive requirements in the manufacturer data sheet before release. For oscillator-based designs, calculate the RC or crystal timing network from the manufacturer guidance and keep oscillator traces short and away from noisy switching nodes. For externally clocked designs, ensure that IN1 transitions satisfy the specified negative-edge counting requirement and that unused inputs are tied to defined logic levels. RESET can be used during power sequencing to hold the divider in a known state until the surrounding system is ready. This product data combines manufacturer-family information, distributor specifications, verified pricing references, cross-reference results, and practical implementation guidance. It also distinguishes genuine same-package substitutes from unspecified or cross-package alternatives so engineers can evaluate replacement decisions without relying on unsupported equivalence claims.

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CD4522BE - Programmable BCD Divide-by-N Counter | Texas Instruments
CD4522BE

CD4522BE - Programmable BCD Divide-by-N Counter | Texas Instruments

Texas Instruments CD4522BE is a CMOS programmable BCD divide-by-N counter with one 4-bit counting element, operating from 3 V to 18 V in a 16-pin PDIP package. The counter supports positive or negative count inputs, provides symmetrical output characteristics, and is intended for frequency division, sequencing, and programmable counting systems. A programmable BCD counter is a digital logic device that counts in binary-coded decimal form and divides an incoming frequency by a selected count value. The CD4522B belongs to the CD4000 CMOS logic family, combining a decade-counter architecture with programmable count inputs. This places it within the hierarchy of counter IC, logic IC, digital CMOS IC, and semiconductor, making it suitable for both timing and control applications. Key characteristics include a 3 V to 18 V operating range, a 4-bit counting element, and operation up to 8 MHz according to the manufacturer datasheet family information. The device uses symmetrical output characteristics, and its specified maximum input current reaches 1 microampere at 18 V over the full package-temperature range. At 18 V and 25 degrees Celsius, the stated input current can be reduced to 100 nanoamperes. The CD4522B family is manufactured in multiple package and ordering configurations. The E suffix identifies the 16-lead dual-in-line plastic package used by CD4522BE. Its through-hole PDIP construction supports conventional PCB assembly and is distinct from the surface-mount options listed for the CD4522B family. The device meets the requirements stated for JEDEC Standard No. 13B for B-series CMOS devices. Typical uses include programmable frequency division in industrial control equipment, pulse counting in instrumentation, clock and timer sequencing, and divide-by-N logic in test systems. Its broad supply-voltage range allows operation from low-voltage 3 V systems through conventional 5 V and 15 V CMOS environments. The design should account for input transition timing, reset behavior, and the selected count configuration when defining system timing. For a new PCB, preserve the CD4522BE pin arrangement and verify every connection against the Texas Instruments CD4522B pin-description table. For an existing design, confirm the logic levels, maximum input frequency, operating voltage, and reset requirements before substituting any equivalent. The PDIP package also requires adequate spacing for through-hole insertion and mechanical clearance around the device.

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CD4522BM - 4-Bit Programmable BCD Counter | Texas Instruments
CD4522BM

CD4522BM - 4-Bit Programmable BCD Counter | Texas Instruments

The Texas Instruments CD4522BM is a CMOS programmable BCD divide-by-N counter with one 4-bit counting element, a 16-pin SOIC package, and operation across a 3 V to 18 V supply range. The device provides a decoded zero-state output for divide-by-N designs and supports cascade feedback for implementing higher divide ratios across multiple stages. According to the verified Texas Instruments product data, it operates from -55 °C to +125 °C and is intended for both positive and negative clock-edge counting functions. A BCD divide-by-N counter is a digital logic IC that counts in binary-coded decimal and generates a terminal-count indication after a selected number of input transitions. In the broader semiconductor hierarchy, this function belongs to counters and dividers, then to logic ICs, digital semiconductors, and programmable CMOS devices. The CD4522B family is useful where a system must divide a clock into programmable decade-based intervals without requiring a microprocessor or programmable logic device. The internally synchronous counter architecture supports high internal and external operating speeds, while the logic-edge-clocked design increments on a positive Clock transition or on a negative Clock Inhibit transition. A decoded zero-state output simplifies the end-of-count detection normally required by divide-by-N systems. The verified manufacturer material also states that the device is 100% tested for quiescent current at 20 V and receives parametric testing at 5 V, 10 V, and 15 V, providing useful production-control coverage across common CMOS operating points. The programmable divide count is configured through the counter's control inputs, while cascade feedback permits multiple counter sections to implement larger division ratios. This architecture reduces the external logic needed for timing dividers, periodic-event generators, sequence counters, and clock-staging circuits. Exact propagation-delay and maximum-frequency limits were not present in the supplied verified snippets and should therefore be confirmed in the manufacturer datasheet before relying on timing margins. Typical applications include decade counters, programmable frequency dividers, industrial timing modules, digital clock generation, pulse-rate counting, and multistage cascaded division systems. The CD4522BM is particularly appropriate when a fixed, reliable CMOS counter is preferred over software timing, especially where the final count must be electrically programmable rather than fixed in firmware. Designers should connect the decoded zero output and preset-enable functions according to the intended single-stage or cascade configuration, and should account for supply-voltage-dependent propagation delay in high-speed clock trees. Decoupling capacitors should be placed close to the power and ground pins, while unused inputs must be held at a defined logic level rather than left floating. This page consolidates verified manufacturer and distributor information, package details, sourcing links, strict drop-in candidates, and practical design guidance. It distinguishes documented characteristics from parameters that still require confirmation from the full CD4522B datasheet, helping engineers make a defensible sourcing and design decision.

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CD4536BD - Programmable 24-Bit Timer | Texas Instruments
CD4536BD

CD4536BD - Programmable 24-Bit Timer | Texas Instruments

The Texas Instruments CD4536BD is a programmable timer and ripple-counter CMOS integrated circuit in a 16-pin SOIC package. It contains 24 ripple-binary counter stages, can count from 1 to 2^24 clock edges, and allows the first eight stages to be bypassed so a 4-bit selection code can access an output from any of the remaining 16 stages. The device can operate from an external clock or an RC oscillator built around its on-chip oscillator components. A programmable timer is a timing IC that divides an input frequency into selectable time intervals. The CD4536B belongs to the CMOS counter family within the broader timer and clock-and-timing hierarchy. Its configurable counter length, selectable output stage, and external-clock capability make it useful for periodic-event generation, frequency division, time-delay generation, and industrial control logic without requiring a microcontroller. The principal feature of the CD4536B is its flexible counter architecture. Each of 16 selectable output taps can provide a different division ratio, while the first eight stages can be bypassed to reduce the counting interval. Its outputs have standardized, symmetrical characteristics, and its quiescent current is tested at 20 V across the 5 V, 10 V, and 15 V parametric ratings. The family is designed to meet the stated JEDEC Tentative Standard No. 13B requirements for B-series CMOS devices. The CD4536BD combines digital counting with analog RC timing functions. An external clock can be applied when precise system-synchronized timing is required, while the internal oscillator permits stand-alone interval generation with external resistor and capacitor values. The selectable output stages let one oscillator or clock source serve several timing tasks, reducing the number of separate timers required in a control design. Typical uses include industrial pulse and delay generation, repetitive process-control timers, frequency dividers, low-frequency clock generation, programmable pulse trains, and embedded automation systems. The device is also useful in laboratory and test equipment where a selectable division ratio or independently adjustable RC time constant is needed. It can also complement CMOS divider and oscillator products in broader sequential-control systems. When designing around the CD4536BD, calculate the RC oscillator timing from the manufacturer datasheet's timing equations and component tolerances rather than treating the nominal frequency as exact. Keep external clock edges within the specified input limits, connect unused inputs to defined logic levels, and place decoupling capacitors close to the supply pins. Verify output rise and fall times when driving long traces or high-capacitance loads. This product page combines the functional architecture of the CD4536B with practical timing guidance, package information, comparison criteria, and focused design notes. It supports faster part selection by distinguishing timer operation from general-purpose counters and highlighting the design checks that matter most for reliable CMOS timing circuits.

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CD4536BE - 5 MHz CMOS Programmable Timer | Texas Instruments
CD4536BE

CD4536BE - 5 MHz CMOS Programmable Timer | Texas Instruments

The Texas Instruments CD4536BE is a CMOS programmable timer IC with a maximum frequency of 5 MHz, supplied in a 16-pin PDIP package. It combines timer, oscillator, and counter functions in one device, allowing a fixed resistor-capacitor network or external clock to control timing and frequency behavior. According to the distributor listing, its operating temperature range is -55°C to 125°C. A programmable timer is a type of clock and timing IC used to generate, delay, divide, or count time-related signals. In system terms, the CD4536BE belongs to the timer and oscillator category, then to clock and timing ICs, and finally to integrated digital logic. Its CMOS construction supports operation from low-power digital control systems while providing the timing functions normally assembled from discrete counters, gates, resistors, and capacitors. The principal verified features are the 5 MHz maximum timing frequency and the 16-pin PDIP package. The official Texas Instruments product page identifies the device as a CMOS programmable timer, while the part-detail result specifies the 16-pin PDIP configuration and temperature range. The CD4536BE is suitable for general-purpose timing, oscillator, event-counting, waveform-generation, and control applications where a programmable digital timing block is useful. The device can be used as a monostable or astable timing element depending on the external network and wiring. In a one-shot configuration, an external trigger initiates a defined output interval. In an astable configuration, the timer repeatedly switches states and produces a periodic waveform. Its counter capability can also support frequency division or event counting. Exact timing limits, output drive, supply voltage, quiescent current, and propagation-delay values were not included in the provided verified data and should be confirmed from the manufacturer datasheet before design release. For layout, keep the timing components and signal paths short because the 16-pin PDIP device is intended for through-hole construction. Follow the manufacturer pinout and application examples exactly. Because the verified data does not provide a complete pin assignment or all electrical limits, engineers should retrieve the official CD4536B datasheet and verify timing tolerance, reset behavior, supply requirements, and output logic levels for the intended system. This page combines the verified manufacturer identity, distributor package and frequency information, pricing status, and replacement analysis. It also distinguishes confirmed engineering facts from parameters that still require datasheet review, helping buyers evaluate the CD4536BE without relying on unverified assumptions.

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CD4536BK - CMOS Programmable Timer | Texas Instruments
CD4536BK

CD4536BK - CMOS Programmable Timer | Texas Instruments

The Texas Instruments CD4536BK is a CMOS programmable timer with 24 ripple-binary counter stages, selectable output timing, and operation from an external clock or an RC oscillator. It supports count sequences from 1 to 2^24, allows the first eight stages to be bypassed, and provides a 4-bit selection code for one of the remaining 16 output stages. The device is identified in a 16-lead CDFP package. A programmable timer is a clock-and-timing IC that combines an internal binary counter with oscillator and output-selection circuitry. Within the broader hierarchy of timer IC, digital logic IC, clock and timing IC, and semiconductor categories, it provides a flexible way to divide an input frequency or generate a selectable time interval. Instead of requiring a fixed counter size, the CD4536B family can bypass eight stages and select among 16 remaining tap positions. Key features include standardized symmetrical output characteristics, 24 ripple-binary counting stages, external-clock capability, and an on-chip RC-oscillator arrangement. The manufacturer also tests quiescent current at 20 V and specifies parametric ratings at 5 V, 10 V, and 15 V. These characteristics make the timer useful when an adjustable time base is more valuable than a fixed-frequency divider. Technically, the CD4536B operates as a ripple-binary counter with programmable output selection. Its first eight stages may be bypassed, leaving 16 stages that can be addressed by a 4-bit code. An external clock can drive the counter directly, while resistor-capacitor timing components can establish an on-chip RC oscillation. This architecture supports one-shot, repetitive timing, delayed-event, clock-divider, and programmable-delay implementations without requiring a microcontroller for basic timing tasks. Typical applications include industrial pulse and delay generation, laboratory pulse generators, timer modules, event sequencing, periodic control loops, and low-speed clock division. The device is particularly suitable where a fixed CMOS logic implementation is preferable to firmware-based timing, provided the design accounts for oscillator tolerance and propagation-delay variation. Designers should treat the CD4536B family as a versatile but discrete-function timer rather than a precision real-time clock. Keep the RC timing network close to the device, validate the selected output stage against the required interval, and confirm counter timing at the voltage and temperature extremes of the intended equipment. The 16-lead package also requires attention to lead pitch and footprint compatibility during replacement planning. This product record combines the functional architecture of the CD4536B family, package information, JEDEC qualification context, and practical timer-design guidance. It also distinguishes verified drop-in replacements from related counter ICs whose internal architecture or pin assignments make them unsuitable as direct PCB replacements.

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CD4536BPW - 5MHz CMOS Programmable Timer | Texas Instruments
CD4536BPW

CD4536BPW - 5MHz CMOS Programmable Timer | Texas Instruments

Texas Instruments CD4536BPW is a CMOS programmable timer and counter built around 24 ripple-binary counter stages, with an operating frequency listed as high as 5 MHz and a 16-pin TSSOP package. The device supports counting from 1 to 2^24 or bypassing the first eight stages to select among 16 decoded outputs through four BCD control inputs. Its programmable architecture makes it suitable for timing, pulse generation, delay, and frequency-related control circuits. A programmable timer is a clock-and-timing IC that combines an internal oscillator, counter, decoding logic, and output circuitry to create timing events without requiring a microcontroller. In the broader semiconductor hierarchy, the CD4536BPW belongs to the CMOS timer family, the clock-and-timing IC category, and ultimately the integrated-circuit and semiconductor markets. It extends simple fixed-delay or fixed-frequency circuits by allowing the counter range and output selection to be changed with digital control signals. Key features include a 24-stage ripple-binary counter, selectable bypass of the first eight stages, four BCD inputs labeled A, B, C, and D, and selectable decoded outputs. A logic-high signal on the 8-BYPASS input makes stage 9 the first stage of the remaining 16-stage counter. The MONO IN input supports the on-chip monostable oscillator, while the device also offers programmable timer operation for longer timing intervals. The counter-based architecture is useful because the timing interval can be derived from the oscillator frequency and the selected count. When the eight bypassed stages are used, the decoder can select one of 16 outputs. This provides more flexibility than a simple fixed monostable pulse circuit and allows a system designer to choose among several timing taps. The Texas Instruments CD4536B datasheet also states that the B-series device provides standardized, symmetrical output characteristics and is 100% tested for quiescent current at 20 V. Typical uses include industrial pulse and delay generation, periodic event sequencing, laboratory timing circuits, counter interfaces, clock dividers, and embedded control systems where an external microcontroller does not need to manage every timed interval. A complementary counter or multiplexer can be useful when the selected timer output must be routed, counted, or isolated from other timing domains. Designers should account for the external resistor and capacitor network connected to the oscillator, verify propagation-delay behavior at the selected counter stage, and ensure that reset and output states remain defined during startup. Decoupling capacitors should be placed close to the supply and ground pins, while unused inputs must be connected to a defined logic level rather than left floating. This page consolidates the manufacturer timer architecture, verified package information, pinout guidance, application examples, and practical replacement considerations into a design-focused reference. It also distinguishes true same-footprint replacements from functionally related timer and counter ICs that require different packages or different internal architectures.

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CD4541BE - 100 kHz Programmable Timer | Texas Instruments
CD4541BE

CD4541BE - 100 kHz Programmable Timer | Texas Instruments

The Texas Instruments CD4541BE is a CMOS programmable timer and oscillator with a maximum oscillator frequency of 100 kHz, packaged in a 14-pin PDIP. It combines a 16-stage binary counter, an external RC-controlled oscillator, automatic power-on reset, and programmable output-control logic. According to the Texas Instruments datasheet, it is a high-voltage type rated for 20 V. A programmable timer is a timing IC that generates or measures intervals using digital counters and, often, an external resistor-capacitor network. In the broader electronics hierarchy, the CD4541BE belongs to CMOS logic, timer and oscillator circuits, and clock-and-timing semiconductors. Its internal oscillator establishes the time base, while the 16-stage counter divides that frequency to produce longer intervals or lower-frequency outputs. The MODE input, located at pin 10, provides selectable operating modes. With MODE at logic 1, the output is a continuous square wave whose frequency equals the oscillator frequency divided by 2N. With MODE at logic 0 following a master reset, the selected output changes according to the datasheet truth table. The device also supports reset control and allows the timer output stage to be selected by external logic. The CD4541BE is useful for periodic-event generation, delay circuits, clock dividers, and low-frequency waveform generation. Because the oscillator uses external resistors and a capacitor, the timing accuracy and frequency depend on the selected component tolerances and the stability of those external parts. Designers should avoid using the device where high-frequency precision beyond its specified 100 kHz capability is required. Typical uses include industrial control timing, relay and pulse generation, laboratory breadboard projects, low-frequency clock sources, and counter-based sequencing. A 14-pin PDIP package is convenient for prototyping and through-hole assembly, although it occupies more board area than a surface-mount timer package. For reliable timing, place the oscillator resistor and capacitor close to their associated pins, keep timing traces short, and provide adequate bypassing on the supply pins. Verify the selected MODE and reset levels in the manufacturer truth table before relying on a particular output waveform. This page consolidates the available manufacturer and distributor information, explicitly identifies missing electrical details, and avoids presenting unverified performance claims as product specifications.

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CD4541BEX - CMOS Programmable Timer | Harris | 14-DIP
CD4541BEX

CD4541BEX - CMOS Programmable Timer | Harris | 14-DIP

The Harris Corporation CD4541BEX is a CMOS programmable timer IC with a 16-stage binary counter, an integrated oscillator using external resistors and a capacitor, output-control logic, and a power-on reset function. The device is packaged in a 14-lead rectangular dual in-line package measuring 0.300 inch, or 7.62 mm, across the pin row spacing. It is designed for timing, oscillator, delay, pulse-generation, and frequency-division circuits. A programmable timer is a clock-and-timing integrated circuit that divides an externally generated oscillator frequency into selectable timing intervals. The CD4541B family belongs to the CD4000 CMOS logic hierarchy and combines an oscillator, counter, reset control, and output stages in one package. This integration reduces the number of discrete timing components while giving the circuit designer control over frequency, count length, and output behavior. The CD4541BEX uses CMOS technology and includes an external-resistor-and-capacillator timing network. Its integrated 16-stage binary counter supports frequency division and elapsed-time measurement, while the oscillator section provides the time base. The special power-on reset circuit allows the device to operate across its full voltage range without an additional static power-consumption penalty associated with a conventional reset arrangement. The CD4541BEX is identified by a JESD-609 code of e0 and an industrial temperature grade. Its terminals use a tin/lead, Sn/Pb, finish. The 14-DIP package is through-hole rather than surface mount, making the device appropriate for conventional through-hole assemblies, prototyping, repair, and industrial control systems that retain 0.300-inch DIP footprints. Typical uses include delayed switching, retriggerable and non-retriggerable pulse generation, industrial sequence timing, periodic relay actuation, low-frequency clock generation, and frequency division. In these applications, external timing components establish the oscillator rate, while the counter and control inputs determine when an output changes state. Layout should keep the oscillator resistor, capacitor, and associated traces away from high-current switching nodes to reduce false frequency triggering. Decoupling capacitors should be placed close to the supply pins, and unused inputs must be held at defined logic levels. Because this version uses a tin/lead terminal finish, buyers should assess its environmental and assembly-policy requirements before use. This page combines the manufacturer timer architecture with practical oscillator-layout guidance, application-specific selection criteria, and a structured comparison of documented CD4541-family alternatives. It also distinguishes verified electrical facts from parameters that require confirmation from the device datasheet before production release.

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CD4541BF - CMOS Programmable Timer, 20 V | Texas Instruments
CD4541BF

CD4541BF - CMOS Programmable Timer, 20 V | Texas Instruments

The Texas Instruments CD4541BF is a CMOS programmable timer rated to 20 V, with a 16-stage binary counter, an external RC-controlled oscillator, automatic power-on reset, and programmable output-stage selection in a 14-pin CDIP package. It operates across the automotive temperature range of -55°C to +125°C and is intended for timing, counting, pulse generation, and delayed-output applications. A programmable timer is a clock-and-timing semiconductor that combines oscillator, counter, reset, and output-control functions. The CD4541B belongs to the CMOS timer and counter hierarchy, where an external resistor-capacitor network establishes the oscillator timing and the internal binary counter divides that frequency into selectable output periods. Its high-voltage 20 V rating provides additional supply-voltage headroom compared with lower-voltage CMOS logic families. The device contains a 16-stage binary counter and uses MODE input pin 10 to select output behavior. According to the manufacturer datasheet, MODE high produces a continuous square wave whose frequency is the oscillator frequency divided by 2N, while MODE low provides a selected one-shot output after MASTER RESET. Output-stage selection allows the circuit to use counter outputs associated with programmable timing intervals. The design is suitable where fixed hardware timing is preferable to a software-driven timer. The 14-CDIP package is intended for through-hole industrial, automotive, and control-system assemblies. Its operating-temperature rating of -55°C to +125°C makes it suitable for electrically harsh environments when the surrounding system, resistors, capacitors, and output loads also satisfy the required limits. Because oscillator accuracy depends on component tolerances and temperature behavior, the external RC network and load capacitance must be selected carefully. Typical uses include delayed relay actuation, pulse and square-wave generation, periodic actuator control, industrial counters, automotive timing blocks, and power-sequencing helpers. The counter provides deterministic division of a frequency source, while MODE and MASTER RESET allow the output interval to be selected or reset in hardware. Unlike a microcontroller-based timer, the CD4541BF continues timing without clocked software. When laying out the circuit, keep the oscillator resistor-capacitor network close to the oscillator pins and minimize parasitic capacitance around the timing node. Use the manufacturer datasheet for exact resistor and capacitor limits, pin functions, reset behavior, output-drive capability, and output-stage truth table. The key engineering trade-off is flexibility: hardware timing reduces processor overhead, but programming a new interval generally requires changing external components or the counter-output selection rather than software.

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CD4541BM - 20V CMOS Programmable Timer | Texas Instruments
CD4541BM

CD4541BM - 20V CMOS Programmable Timer | Texas Instruments

The Texas Instruments CD4541BM is a CMOS programmable timer with a 20 V rating, a 16-stage binary counter, and output control logic in a 14-pin SOIC package. According to the verified distributor listing, it is a programmable timer IC with a 100 kHz oscillator classification and a 14-SOIC package. The device supports externally selected resistor-capacitor timing components, automatic power-on reset, and selectable output modes. A programmable timer is a timing and clock-management integrated circuit that generates repeatable delays or oscillation signals from external timing components. The CD4541B family combines an oscillator, a 16-stage binary counter, and output logic, allowing designers to divide an oscillator frequency and select an output stage for delay or waveform generation. Its CMOS architecture places it within the broader category of clock and timing ICs. Key verified features include a high-voltage 20 V rating, 14-pin SOIC packaging, and a 100 kHz timer classification. The oscillator is controlled by two external resistors and a capacitor, while the counter increments on positive-edge clock transitions. The manufacturer datasheet also identifies selectable Q and Q-barrier outputs from counter stages and a MODE input for choosing continuous square-wave or one-shot-style behavior. The CD4541BM is useful for industrial control timing, pulse generation, delayed switching, periodic control, and basic clock division. Its external RC interface gives the designer direct control over timing values, while the automatic power-on reset feature helps establish a defined startup state. The 14-pin SOIC format is also convenient for conventional surface-mount PCB assembly. When designing around the CD4541BM, calculate the external resistor and capacitor values against the required output frequency and verify timing tolerances over the intended temperature range. Keep the MODE and MASTER RESET inputs driven to valid CMOS levels, and account for supply voltage and propagation-delay requirements when cascading multiple stages. The manufacturer datasheet is the authoritative source for exact electrical limits, timing equations, and pin behavior. This page combines verified manufacturer and distributor information, source-linked technical context, and practical selection guidance for engineers evaluating the CD4541BM in timer and oscillator designs.

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CD4543BF - BCD Seven-Segment LCD/LED Driver | Harris
CD4543BF

CD4543BF - BCD Seven-Segment LCD/LED Driver | Harris

The Harris CD4543BF is a CMOS BCD-to-seven-segment latch, decoder, and display driver with a 16-CERDIP package. According to the Texas Instruments CD4543B datasheet, it accepts BCD data for displays with segments a through g and decimal point a, and it is designed primarily for liquid-crystal displays while also supporting LED, incandescent, gas-discharge, and fluorescent displays. The device latches decoded display data, reducing input-bus activity during multiplexed operation. A BCD-to-seven-segment decoder is a display-driver subcategory that translates binary-coded decimal information into the seven drive lines used by a numeric display. In the broader electronics hierarchy, the CD4543BF belongs to interface ICs, display drivers, CMOS logic, and digital semiconductors. It sits between a controller or counter and a physical display, allowing a system to present digits without using a microcontroller to generate every segment waveform. The verified manufacturer information identifies CD4543B as functionally similar to the CD4056B when pin 7 is connected to VSS. The family also provides latch, decoder, blanking, and display-driver functions, but detailed timing, voltage, current, and temperature limits were not included in the supplied search extracts. The 16-lead package and CDIP form factor make the CD4543BF suitable for through-hole industrial, educational, instrumentation, and legacy-control designs where a conventional ceramic dual-in-line package is preferred over a surface-mount package. Typical uses include seven-segment LCD modules, multiplexed LED displays, digital counters, panel meters, timers, and embedded industrial panels. When driving LCD segments, the display's drive polarity and common-plane arrangement must match the device specifications. When driving LEDs, segment current, duty cycle, and the number of simultaneously lit digits must be checked against the display and supply limits. A decoder is not a regulated power supply or a high-current constant-current LED driver. The principal design consideration is interface timing. The latch allows the input BCD value to be held while segment outputs are decoded, but the display system must still generate valid strobe and multiplexing signals. Confirm pin assignments, supply voltage range, output drive capability, propagation timing, and electrical limits from the manufacturer datasheet before replacing an existing CD4056B or designing new PCB artwork. This page synthesizes the verified manufacturer classification, distributor availability, package information, family relationship, and application context for CD4543BF. It deliberately distinguishes documented information from parameters that require confirmation from the full datasheet, helping engineers avoid treating a distributor category label as a complete electrical specification.

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CD4585BD - 4-Bit Magnitude Comparator | Texas Instruments
CD4585BD

CD4585BD - 4-Bit Magnitude Comparator | Texas Instruments

The Texas Instruments CD4585BD is a 4-bit CMOS magnitude comparator with eight comparison inputs, three active-high outputs, and three cascading inputs, operating from 3 V to 18 V in a 16-pin CDIP package. It compares two binary or BCD words and indicates whether A is less than, equal to, or greater than B. A magnitude comparator is a combinational logic device that examines corresponding bits of two multi-bit operands and produces an ordering result. The CD4585BD belongs to the CMOS logic family, where CMOS means complementary metal-oxide-semiconductor. Its hierarchy extends from a digital comparator IC to a logic IC, integrated circuit, and semiconductor. The device is useful whenever a system must determine the relationship between two numerical values without relying on a processor. The CD4585BD supports supply voltages from 3 V to 18 V, operates across a military temperature range of -55 °C to +125 °C, and provides a 160 ns propagation delay at 15 V with a 50 pF load. Its active-high A<B, A=B, and A>B outputs report the comparison result directly. The specified 100 µA supply current supports low-power logic designs, while the 6.8 mA output-current figure defines the available output drive in the cited product data. Cascading inputs extend the comparison to more than four bits. The equal, greater-than, and less-than cascade paths allow multiple CD4585 devices to compare two larger words. Designers must connect unused inputs to defined logic levels and account for propagation delay through each cascade stage when evaluating system timing. Typical uses include digital sorting and ranking, address and threshold comparison, BCD arithmetic control, test-equipment decision logic, industrial control sequencing, and embedded systems that require a hardware ordering function. Its military temperature range and through-hole CDIP-16 package also make it suitable for legacy and ruggedized equipment where surface-mount alternatives are unsuitable. For reliable operation, keep every supply pin within the 3 V to 18 V range and use the manufacturer's recommended operating conditions. Decoupling capacitors should be placed close to the supply pins, while all digital inputs should remain driven to valid CMOS levels. Propagation-delay accumulation and output contention require particular attention when several devices are cascaded. This page consolidates the verified distributor specifications, pricing context, a same-family drop-in assessment, and practical implementation guidance. It also separates documented electrical values from unavailable parameters rather than filling gaps with estimated or invented specifications.

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CD4585BE - 4-Bit CMOS Magnitude Comparator | TI
CD4585BE

CD4585BE - 4-Bit CMOS Magnitude Comparator | TI

The Texas Instruments CD4585BE is a 4-bit CMOS magnitude comparator that compares two 4-bit binary or BCD words and reports whether the first word is less than, equal to, or greater than the second word. It accepts eight comparison inputs, provides three active-high result outputs, and includes three cascading inputs. The device operates from 3 V to 18 V and is supplied in a 16-pin PDIP package, with a specified temperature range of -55 °C to 125 °C. A magnitude comparator is a logic IC within the broader CMOS comparator category. Its purpose is to evaluate the relative magnitude of two multi-bit values and produce a corresponding digital result. The CD4585B supports binary and BCD data, making it useful in computer-control, digital arithmetic, threshold-detection, sorting, and industrial automation systems. Its three cascading inputs allow designers to extend comparisons beyond four bits by connecting multiple devices. The principal features include eight 4-bit comparison inputs, three active-high outputs labeled A<B, A=B, and A>B, and a wide 3 V to 18 V supply range. The wide operating voltage is useful when a system uses a supply above the typical 5 V logic range. The specified -55 °C to 125 °C temperature range provides broad environmental capability, while CMOS operation places the device in the low-power CD4000 logic family. The CD4585B compares each corresponding bit of the two input words and propagates the most significant comparison result toward the lower-order bits. This internal structure produces three mutually related outputs rather than one combined result. Cascading inputs permit a higher-order device to accept the comparison state generated by a lower-order device, enabling comparison of wider binary or BCD values without redesigning the basic logic function. Typical applications include digital counters, threshold and limit detectors, arithmetic control, industrial sequence control, sorting logic, and embedded decision systems. It can compare a measured or represented value against a reference word and indicate whether the value is below, equal to, or above the configured limit. The BCD capability also supports decimal display and control systems where encoded ten-state values are more convenient than binary values. When designing around the CD4585BE, verify unused inputs so that no CMOS input remains floating. Place supply-bypass capacitance close to the device and route output signals away from noisy analog or switching nodes. Because the part is a through-hole PDIP device, it is particularly suitable for prototypes, educational systems, legacy industrial equipment, and new designs that specifically retain a 16-pin through-hole footprint. This page combines manufacturer information, distributor availability, package details, related comparator references, and engineering-oriented comparison data. It also identifies where verified technical values are unavailable so procurement and design decisions can be made without confusing incomplete cross-reference information with a guaranteed drop-in replacement.

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CD74AC151M96 - 8-Input Multiplexer, 16-SOIC | Texas Instruments
CD74AC151M96

CD74AC151M96 - 8-Input Multiplexer, 16-SOIC | Texas Instruments

The Texas Instruments CD74AC151M96 is a high-speed 8-input digital multiplexer fabricated in the AC (Advanced CMOS) logic family, delivered in a 16-pin SOIC (D) surface-mount package with Tape and Reel packing (-96 suffix). It selects one of eight data inputs (D0-D7) under control of three select lines (A, B, C) and drives both a true output (Y) and a complementary output (W), with an active-low enable (G) input that forces both outputs low when asserted. A multiplexer (MUX) is a combinational logic device that routes one of several input signals to a single output line, forming a key element in the hierarchy of digital logic ICs: MUX -> combinational logic -> logic IC -> semiconductor. Multiplexers perform parallel-to-serial conversion, data source selection, and Boolean function generation of up to four variables in a single package. Key features include operation from 1.5V to 5.5V supply per the AC family specification, balanced noise immunity of 30% of the supply voltage, and propagation delays as low as 5.5 ns at 5V - speed comparable to bipolar F, AS, and S logic families with CMOS low static power consumption. Outputs source or sink up to 24 mA, enabling direct drive of substantial fan-out loads. The advanced CMOS process delivers high noise immunity and low quiescent dissipation, with TTL-level input compatibility at 5V operation. Balanced propagation and transition times minimize output skew in high-speed systems. The wide -55C to +125C operating range of this package supports industrial and military-temperature designs. Typical applications include microprocessor data routing, parallel-to-serial converters, Boolean function generators, communication channel selection, and test-equipment signal switching, where the complementary W output eliminates the need for an external inverter. Design tip: properly terminate the enable and select lines to avoid undefined states, and use a pull-up or pull-down resistor on Y/W when the device may be disabled. Account for input capacitance when routing high-speed signals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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CD74AC151QM96Q1 - 8:1 Mux, AEC-Q100 | Texas Instruments
CD74AC151QM96Q1

CD74AC151QM96Q1 - 8:1 Mux, AEC-Q100 | Texas Instruments

The Texas Instruments CD74AC151QM96Q1 is an automotive-grade (AEC-Q100 qualified) 8-line to 1-line data selector/multiplexer in a 16-pin SOIC (M) package. It belongs to the CD74AC Advanced CMOS logic family, which supports operation from 1.5 V to 5.5 V with balanced noise immunity of 30% of the supply voltage. The device selects one of eight data sources under control of a 3-bit address and provides both true (Y) and complementary (W) outputs with a strobe/enable input. A digital multiplexer is a combinational logic circuit that forwards one of several input signals to a single output line, selected by binary control address inputs. In the logic IC hierarchy, the multiplexer sits under combinational logic > data routing ICs within the broader category of 4000/7400-family digital logic. Multiplexers can also act as Boolean function generators of up to four variables, parallel-to-serial converters, and data source selectors. Key features include 8:1 selection with complementary outputs, high-speed AC-family switching comparable to bipolar F, AS, and S speed classes, operation up to 5.5 V, and balanced CMOS noise immunity. The Q1 suffix denotes AEC-Q100 qualification, making the part suitable for automotive and harsh-environment designs where temperature cycling, ESD robustness, and quality requirements exceed commercial grades. The CD74AC151 uses advanced CMOS technology for low static power consumption combined with fast propagation delays, making it appropriate for address decoding, sensor-source selection, and data-routing in automotive ECUs, industrial control modules, and instrumentation front ends. Typical applications include automotive body and powertrain control modules selecting among sensor channels, parallel-to-serial data conversion in microcontroller-based systems, and universal logic-function generation in FPGA glue logic and test equipment. Design tip: tie the strobe (active-low enable) low for continuous selection, and keep unused data inputs at defined logic levels to prevent floating CMOS inputs that increase supply noise and current.

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CD74ACT163 - 4-Bit Sync Binary Counter 5V | Texas Instruments
CD74ACT163

CD74ACT163 - 4-Bit Sync Binary Counter 5V | Texas Instruments

The Texas Instruments CD74ACT163 is a 4-bit synchronous presettable binary counter with synchronous reset, fabricated in the advanced CMOS (ACT) logic family and housed in a 16-pin SOIC package. It operates from a 5V supply with TTL-voltage-compatible inputs, and features an internal carry look-ahead for high-speed counting designs plus a ripple carry output (RCO) for n-bit cascading. A synchronous binary counter is a sequential logic IC in which all flip-flops are clocked simultaneously by a common clock edge, so all output bits change in coincidence rather than rippling stage to stage. Within the logic IC hierarchy (counter -> sequential logic IC -> digital IC), synchronous counters eliminate the cumulative propagation delays of ripple (asynchronous) counters, enabling reliable high-speed counting and glitch-free decoded outputs. Key features include synchronous counting, synchronous parallel load via the active-low LOAD input for programmable counting, and synchronous reset (CLR) that clears all outputs on the next clock edge, eliminating the decoding spikes inherent in asynchronous clearing. The count-enable inputs (ENP, ENT) permit cascading and gated counting without external gating logic, and the RCO terminal supports direct n-bit cascading. The ACT technology combines CMOS low static power with TTL input thresholds at 5V operation, making the device directly interchangeable in TTL 74163 sockets. Positive-edge clocking and fully synchronous preset, count, and clear functions simplify timing analysis in multi-stage counter chains. Typical applications include frequency division, digital timers, event counting, address generation, industrial sequencing, and cascaded n-bit counters built by wiring RCO of one stage to ENT of the next. Design consideration: because reset and load are synchronous, hold CLR or LOAD low for at least one full clock period; for asynchronous-reset designs use the related CD74ACT161 instead. Decouple the 5V rail with 0.1uF close to the VCC pin. This page synthesizes distributor data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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