INDUSTRY COMPONENT

Accumulator Register

A digital register component in MAC units that temporarily stores accumulated results from arithmetic operations for subsequent processing.

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Component Specifications

Definition
The accumulator register is a specialized digital storage component within Multiplier-Accumulator (MAC) units that holds intermediate or final accumulated values from successive multiplication and addition operations. It functions as a temporary buffer that preserves computational results before they are transferred to other system components or output interfaces, typically featuring parallel loading capabilities and synchronization with system clock signals.
Working Principle
Operates by receiving binary data from the accumulator's arithmetic logic unit (ALU), storing it in flip-flop circuits when enabled by control signals, and maintaining the value until overwritten by new data or cleared by reset commands. The register interfaces with data buses for input/output operations and includes overflow detection logic for error handling.
Materials
Semiconductor silicon with CMOS technology, aluminum/copper interconnects, silicon dioxide insulation, plastic or ceramic packaging (typically DIP, SOP, or QFP formats).
Technical Parameters
  • bit_width 8-bit to 64-bit
  • access_time 1 ns to 10 ns
  • package_type Surface-mount or through-hole
  • power_supply 1.2V to 3.3V DC
  • clock_frequency 100 MHz to 3 GHz
  • storage_capacity Single accumulated value
  • operating_temperature -40°C to 85°C
Standards
ISO 9001, IEC 60747, JEDEC JESD22

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Accumulator Register.

accumulator register MAC component digital register arithmetic logic storage multiplier-accumulator part electronic component digital circuit Accumulator Register in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Multiplier-Accumulator (MAC)

A hardware component within a Digital Signal Processor (DSP) that performs multiplication and accumulation operations in a single cycle.

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Adder/Accumulator

A digital circuit component within a Multiply-Accumulate Unit (MAC) that performs addition operations and stores intermediate or final sum results.

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Multiplier-Accumulator Unit

A digital circuit component that performs multiplication and accumulation operations within a syndrome calculator.

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Engineering Analysis

Risks & Mitigation
  • Data corruption from electrical noise
  • Timing violations causing metastability
  • Overflow errors without proper detection
  • Thermal degradation at high frequencies
FMEA Triads
Trigger: Clock signal skew or jitter
Failure: Incorrect data latching and storage
Mitigation: Implement clock distribution networks with balanced delays and use phase-locked loops (PLLs) for synchronization
Trigger: Voltage supply fluctuations
Failure: Data corruption or loss in stored values
Mitigation: Incorporate voltage regulators and decoupling capacitors near power pins

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±5% voltage variation, ±100ps clock timing margin
Test Method
Automated test equipment (ATE) with boundary scan (JTAG), functional testing with test vectors, in-circuit testing for connectivity

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of an accumulator register in MAC units?

It temporarily stores accumulated results from multiplication and addition operations, enabling sequential processing and data transfer within digital systems.

How does the accumulator register differ from general-purpose registers?

It is specifically optimized for arithmetic accumulation operations with dedicated overflow handling and faster access times for MAC-specific workflows.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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