---
title: "Multiplexer (MUX) / Shift Register"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:MULTIPLEXER_MUX_SHIFT_REGISTER"
  data_integrity_hash: "d0ea9432d02c99761b03176e113b1490"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:MULTIPLEXER_MUX_SHIFT_REGISTER"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/multiplexer-mux-shift-register.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/multiplexer-mux-shift-register"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "3.3-5.0 V DC, 0-85°C ambient temperature, 0-100 MHz clock frequency"
    unit: "bits"
engineering_limits:
  max_safe_operating_point:
    value: 2.7
    unit: "V"
    consequence: "CMOS transistor threshold voltage violation at low voltage, gate oxide breakdown at high voltage, carrier mobility degradation and electromigration at elevated temperatures, propagation delay exceeding clock period at high frequency"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Clock signal jitter exceeding 200 ps peak-to-peak"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement clock distribution network with matched trace lengths and termination resistors, use low-jitter crystal oscillator with phase-locked loop"
  - node_2:
      trigger: "Simultaneous switching of 8+ parallel inputs within 2 ns"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement input signal conditioning with Schmitt triggers, add decoupling capacitors (100 nF ceramic + 10 μF tantalum) at power pins, use staggered input timing with 5 ns spacing"
bom_nodes:
  multiplexer-circuit:
    type: "part"
    urn: "URN:CNFX:ME:MULTIPLEXER_CIRCUIT"
    interface_type: "physical-logic-coupled"
  shift-register-array:
    type: "component"
    urn: "URN:CNFX:ME:SHIFT_REGISTER_ARRAY"
    interface_type: "physical-logic-coupled"
  control-logic-unit:
    type: "part"
    urn: "URN:CNFX:ME:CONTROL_LOGIC_UNIT"
    interface_type: "physical-logic-coupled"
  clock-input-buffer:
    type: "component"
    urn: "URN:CNFX:ME:CLOCK_INPUT_BUFFER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "IEC 60747-14-1:2010 (SEMICONDUCTOR DEVICES - PART 14-1: SEMICONDUCTOR SENSORS - GENERAL AND CLASSIFICATION)"
    scope: "Verified Engineering Specification"
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ESD S20.20-2021 (PROTECTION OF ELECTRICAL AND ELECTRONIC PARTS, ASSEMBLIES AND EQUIPMENT)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/multiplexer-mux-shift-register.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0473f100192c1678e308b6f2619293ff5727dc5264cf8714585780e6d316f11b"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Multiplexer (MUX) / Shift Register

## 1. Technical Definition
A digital logic component that combines multiplexing and shift register functionality for parallel-to-serial data conversion.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **3.3-5.0 V DC, 0-85°C ambient temperature, 0-100 MHz clock frequency**. Failure boundary: **Supply voltage below 2.7 V or above 5.5 V, junction temperature exceeding 125°C, clock frequency above 120 MHz**, Mechanism: **CMOS transistor threshold voltage violation at low voltage, gate oxide breakdown at high voltage, carrier mobility degradation and electromigration at elevated temperatures, propagation delay exceeding clock period at high frequency**.

### 2.1 Analytical Physics Model
Governed by the **Joule Heating & Thermal Resistance**:

> **Primary Equation**: $P = I^2 R = \frac{V^2}{R}$  
> **Engineering Impact**: Governs heating element sizing for shrink tunnels/sealers.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| I | Current | Engineering Constant |
| R | Resistance | Engineering Constant |
| V | Voltage | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Clock signal jitter exceeding 200 ps peak-to-peak | 8 | Data corruption during parallel-to-serial conversion | Implement clock distribution network with matched trace lengths and termination resistors, use low-jitter crystal oscillator with phase-locked loop |
| Simultaneous switching of 8+ parallel inputs within 2 ns | 8 | Ground bounce exceeding 400 mV causing false logic state detection | Implement input signal conditioning with Schmitt triggers, add decoupling capacitors (100 nF ceramic + 10 μF tantalum) at power pins, use staggered input timing with 5 ns spacing |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | bits | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Multiplexer Circuit](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/multiplexer-circuit.md) `(Standalone System)`
- [Control Logic Unit](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/control-logic-unit.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Wafer Prober**, **Wire Bonder**, **Pick-and-Place Machine**  
**Downstream Applications**: Microcontroller Units, Digital Signal Processors, Communication Interface Chips  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What is the primary function of this MUX/shift register component?
**A**: This component combines multiplexing and shift register functionality to convert parallel data inputs into a serial output stream, commonly used in data transmission and signal processing applications.

### Q: What industries typically use this type of digital logic component?
**A**: It's primarily used in computer, electronic, and optical product manufacturing for applications like data communication systems, display drivers, memory interfaces, and digital signal processing equipment.

### Q: How does the control logic unit function in this component?
**A**: The control logic unit manages the timing and selection operations, coordinating between the multiplexer circuit and shift register array to ensure synchronized parallel-to-serial data conversion based on clock signals.

## 6. Manufacturing Compliance
- IEC 60747-14-1:2010 (SEMICONDUCTOR DEVICES - PART 14-1: SEMICONDUCTOR SENSORS - GENERAL AND CLASSIFICATION)
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS - REQUIREMENTS)
- ANSI/ESD S20.20-2021 (PROTECTION OF ELECTRICAL AND ELECTRONIC PARTS, ASSEMBLIES AND EQUIPMENT)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Multiplexer (MUX) / Shift Register](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/multiplexer-mux-shift-register)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: MULTIPLEXER_MUX_SHIFT_REGISTER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 997f4f88
