Collection/RCA/RCA CD54HCT161F

ZeptoBars ·CC BY 3.0· Die photograph · Original retained in the acquisition archive. Display resized to at most 1920 pixels; responsive AVIF/WebP encodings. No crop, recoloring, annotations, or generated detail.

Origin & contributions

Original source · Retrieved 2026-09-06

ZeptoBars (publishing archive and CC BY licensor; individual photographer uncredited) · archive · Included in this image

Credit the photograph title and ZeptoBars; link to the original source page and CC BY 3.0; indicate modifications. No endorsement is implied.

SPECIMEN / DATE NOT RECORDED

RCA CD54HCT161F

A four-bit binary-counter die.

RCACMOS logic

Research connections

CompanyRCA ↗SeriesCMOS logic ↗

Specifications

2 SOURCE-LINKED FIELDS

Photographed specimen	Published analysisZeptoBars Scope: physical-specimen
Photographic scope	Published analysisZeptoBars Scope: physical-specimen

THE VISUAL EVIDENCE

Visual sources

1 DOCUMENTED SOURCES

Hosted image provenance · 1

Die photographHosted in Museum

RCA CD54HCT161F — Die photograph

Zeptobars · ZeptoBars

4,059 × 3,300 pxTechnical archive / analysis

Exact article caption identifies RCA CD54HCT161F binary counter.

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View original die photo

Rights, provenance & link history

Rights status: CC LICENSED
Licence: CC BY 3.0 ↗
Local hosting / thumbnails / hotlinking: Allowed / Allowed / Not enabled
Attribution: RCA CD54HCT161F — ZeptoBars / CC BY 3.0
Identity / confidence: matched / high
Evidence reviewed: 2026-09-06
Link checked: Not yet checked · unchecked

Reuse evidence ↗

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Record identity & scope

specimen · RCA CD54HCT161F

What this photograph shows

Exact article caption identifies RCA CD54HCT161F binary counter.