Product Overview
Vintage RCA CD4053BE Triple 2-Channel Multiplexer IC, Used
The RCA CD4053BE is a triple 2-channel analog multiplexer/demultiplexer integrated circuit, part of RCA’s pioneering CMOS logic family. Each of its three independent channels functions as a single-pole, double-throw (SPDT) analog switch, designed for routing analog or digital signals in control and measurement systems.
As one of the early CMOS multiplexers from the 1970s–1980s era, the RCA CD4053BE reflects the precision and innovation that helped establish CMOS as a low-power industry standard. Collectors and restorers still value these original RCA-stamped ICs for their authenticity, build quality, and compatibility with vintage designs.
Product Condition
Used, clean, and in excellent condition. Tested functional with intact leads and original RCA markings. Shows minor signs of handling from previous installation.
Product Overview
The CD4053BE combines three SPDT analog switches in a compact 16-pin dual in-line package (PDIP). It supports signal routing between two sources per channel under logic control, handling both analog and digital signals up to 20V peak-to-peak. RCA’s implementation featured low quiescent current, high input impedance, and break-before-make operation to ensure clean transitions in multi-signal systems.
Key Features
- Manufacturer: RCA
- Model: CD4053BE
- Type: Triple 2-channel analog multiplexer/demultiplexer
- Switch Configuration: 3 x SPDT (1-of-2 selection)
- Supply Voltage Range: 3V to 18V
- Typical ON Resistance: ~125Ω at VDD = 15V
- Signal Range: ±10V (20V peak-to-peak)
- Logic Compatibility: CMOS and TTL-level inputs
- Package: 16-pin PDIP, through-hole
- Break-before-make action to prevent channel overlap
- Operating Temperature: -55°C to +125°C
- Vintage RCA manufacturing – Made in USA
Applications
- Vintage electronics restoration and repair
- Analog audio signal routing and selection
- Sensor or control-signal multiplexing
- Data acquisition circuits
- Microcontroller and logic-level switching
- Educational or prototyping boards using classic CMOS ICs
- Retro computing and instrumentation builds
Frequently Asked Questions
Is this the original RCA-manufactured version?
Yes. This IC carries RCA’s original part markings from its CMOS logic production era, preceding later manufacturing transfers to other semiconductor brands.
Can it handle both analog and digital signals?
Yes. The CD4053BE was designed for both analog (up to 20V peak-to-peak) and logic-level digital switching.
Does this IC include break-before-make timing?
Yes. It prevents both channels from conducting simultaneously during switching, ensuring signal integrity.
Is it interchangeable with modern CD4053BE devices?
Generally yes — the electrical pinout and function remain industry-standard, though this RCA version is prized for its vintage authenticity.
What era is this IC from?
RCA produced the CD4053BE during the 1970s and 1980s as part of its pioneering CMOS logic lineup, a foundation for modern low-power integrated circuit design.
A relic of RCA’s golden age of solid-state design, the CD4053BE still carries the clarity and control that defined early CMOS engineering — ready to find its next role in restoration or experimentation.
