INDUSTRY COMPONENT

Parallel Input Register

A parallel input register is a digital storage component that temporarily holds multiple bits of data simultaneously before serial transmission in PISO converters.

Component Specifications

Definition
The parallel input register is a critical component in Parallel-to-Serial (PISO) converters that functions as temporary storage for multiple data bits received in parallel format. It consists of multiple flip-flops or latches arranged in parallel, each storing one bit of the input data word. The register captures all bits simultaneously on a clock edge or enable signal, maintaining data integrity during the conversion process from parallel to serial format. This component ensures synchronized data handling and prevents data loss during high-speed serial transmission operations.
Working Principle
The parallel input register operates by using multiple D-type flip-flops or latches connected in parallel. When a clock pulse or load signal is applied, all flip-flops simultaneously capture the logic levels present at their data inputs. The stored data remains stable until the next clock cycle or until a clear/reset signal is received. In PISO applications, this register holds the complete parallel data word while a shift register sequentially outputs the bits one at a time. The fundamental principle involves synchronous data capture and temporary storage using bistable multivibrator circuits.
Materials
Semiconductor silicon (CMOS/BiCMOS technology), copper interconnects, silicon dioxide insulation, ceramic or plastic packaging materials, gold bonding wires
Technical Parameters
ParameterTypical rangeNotes & selection driver
Hold Time1 ns typical
Data Width4-bit to 64-bit configurations
Setup Time2 ns typical
Output Drive24 mA sink/source
Power Supply3.3V or 5V DC
Clock FrequencyUp to 500 MHz
Input Capacitance5 pF per pin
Propagation Delay5 ns maximum
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
IEC 60747, JEDEC JESD78

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Clock skew causing data capture errors
  • Metastability in asynchronous inputs
  • Power supply noise affecting data integrity
  • Electrostatic discharge damage
  • Thermal runaway in high-frequency operation
FMEA Triads
Trigger: Clock signal jitter or skew
Failure: Incorrect data capture timing leading to bit errors
Mitigation: Implement clock distribution networks with balanced delays, use PLL/DLL for clock synchronization, add timing margin in design
Trigger: Power supply voltage fluctuations
Failure: Unreliable data storage and potential data corruption
Mitigation: Implement decoupling capacitors near power pins, use voltage regulators with low noise, design with power supply rejection ratio (PSRR) considerations
Trigger: Electrostatic discharge (ESD) events
Failure: Permanent damage to semiconductor components
Mitigation: Incorporate ESD protection diodes at all I/O pins, follow proper handling procedures, use antistatic packaging and workstations

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±5% for timing parameters, ±10% for voltage levels, data retention within specification across full temperature range
Test Method
Automated test equipment (ATE) with functional pattern testing, boundary scan (JTAG) for connectivity verification, parametric testing for timing and voltage specifications

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 Parallel Input Register

Manufacturer profiles associated with Parallel Input Register.

Sourcing Parallel Input Register from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Share this page

Related Components

Dielectric Layer
Insulating layer in surface mount capacitors that stores electrical energy through polarization.
Optical Window
Transparent optical component for light transmission in polycarbonate lens housings
PCB Substrate
PCB substrate is the foundational insulating layer that provides mechanical support and electrical connectivity for electronic components in high-speed memory modules.
Edge Connector
Edge connector is a printed circuit board (PCB) connector that mates with the edge of another PCB, commonly used in high-speed memory modules for reliable electrical connections.

Frequently Asked Questions

What is the primary function of a parallel input register in PISO converters?

The primary function is to temporarily store multiple bits of parallel input data simultaneously, ensuring data integrity during the conversion to serial output format.

How does the parallel input register differ from a shift register?

A parallel input register captures all bits simultaneously and holds them statically, while a shift register sequentially moves bits through a chain. In PISO systems, the parallel register feeds into a shift register for serial output.

What are the key timing parameters for parallel input registers?

Critical timing parameters include setup time (data must be stable before clock edge), hold time (data must remain stable after clock edge), and propagation delay (time from clock to output stabilization).

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.

Request Manufacturing Insight for Parallel Input Register

Thank you. Your request has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at [email protected].
XOR Gate
Get QuotesChat