INDUSTRY COMPONENT

Accumulator Register

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

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
ParameterTypical rangeNotes & selection driver
Bit Width8-bit to 64-bit
Access Time1 ns to 10 ns
Package TypeSurface-mount or through-hole
Power Supply1.2V to 3.3V DC
Clock Frequency100 MHz to 3 GHz
Storage CapacitySingle accumulated value
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 JESD22

Parent Products

This component is used in the following industrial products

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

Typical Suppliers & Equivalents

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

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 Accumulator Register

Manufacturer profiles associated with Accumulator Register.

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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.

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.

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