Multiplexer (MUX) / Shift Register Core: Component Specs, Materials & Applications

Component Specifications

Definition

A specialized digital integrated circuit that integrates multiplexer (MUX) and shift register functionality into a single core component. It serves as the central processing unit in Parallel-to-Serial Converter (PISO) systems, enabling efficient conversion of multiple parallel data inputs into a single serial output stream through sequential selection and shifting operations.

Working Principle

Operates by first using the multiplexer section to select one of multiple parallel input channels based on control signals, then transferring the selected data to the shift register section. The shift register sequentially shifts out the data bit-by-bit through clock-controlled operations, converting parallel data words into serial bit streams. Control logic coordinates timing between selection and shifting phases.

Materials

Semiconductor silicon substrate with CMOS/BiCMOS technology; Aluminum/copper interconnects; Silicon dioxide insulation; Ceramic or plastic packaging (DIP, SOIC, QFP); Gold bonding wires.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Data Width	1-bit to 8-bit parallel data
Package Type	DIP-16, SOIC-20, TSSOP-24
Input Channels	4, 8, 16, or 32 parallel inputs
Supply Voltage	3.3V or 5V DC
Clock Frequency	10 MHz to 200 MHz
Power Consumption	10-50 mW typical
Propagation Delay	5-15 ns
Operating Temperature	-40°C to +85°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO/IEC 11801, IEC 60747, JEDEC JESD22, DIN 40700

Parent Products

This component is used in the following industrial products

Parallel-to-Serial Converter (PISO)

A digital circuit that converts multiple parallel data inputs into a single serial data output stream.

View Product Details

Engineering Analysis

Risks & Mitigation

Clock signal interference causing data corruption
Voltage spikes damaging CMOS circuitry
Thermal overload in high-frequency operation
Signal timing mismatches in multi-device systems
Electrostatic discharge (ESD) damage during handling

FMEA Triads

Trigger: Clock signal instability or jitter
Failure: Incorrect data shifting leading to serial output errors
Mitigation: Implement clock signal conditioning circuits; use low-jitter oscillators; add phase-locked loops (PLL) for synchronization

Trigger: Power supply voltage fluctuations
Failure: Logic level misinterpretation and data corruption
Mitigation: Incorporate voltage regulators and decoupling capacitors; implement power monitoring circuits with automatic shutdown

Trigger: Excessive operating temperature
Failure: Increased propagation delay and eventual thermal shutdown
Mitigation: Design adequate heat dissipation; implement thermal sensors with automatic frequency reduction; use high-temperature grade components

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% voltage regulation, ±2% clock frequency stability, ±1.5 ns propagation delay variation

Test Method

IEEE 1149.1 JTAG boundary scan; functional testing with parallel pattern generation and serial output verification; temperature cycling (-40°C to +85°C) with parametric measurement

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Multiplexer (MUX) / Shift Register Core

Manufacturer profiles associated with Multiplexer (MUX) / Shift Register Core.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a MUX/Shift Register Core in industrial systems?

It converts multiple parallel data streams into a single serial output, reducing wiring complexity and enabling efficient data transmission in industrial communication networks, sensor arrays, and control systems.

How does clock synchronization work in this component?

An external clock signal controls both the multiplexer channel selection timing and the shift register operation, ensuring synchronized data transfer between parallel input capture and serial output shifting phases.

Can this component handle bidirectional data flow?

Standard MUX/Shift Register Cores are unidirectional (parallel-in, serial-out). Bidirectional versions (PISO/SIPO) exist but require additional control logic and are specified separately.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Multiplexer (MUX) / Shift Register Core