Texas Instruments CD4543BNSR
CD4543BNSR variants from Texas Instruments
CD4543BNSR Overview
What changes between part numbers, and what to check before you lock the BOM — Signal Switches, Multiplexers and Decoders.
Key Features
- Footprint / package: SOPSingle package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
Target Applications
- Signal Switches, Multiplexers and Decoders — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 2 CD4543BNSR part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| CD4543BNSR | Package: SOP | Max Supply Voltage: 18V | Min Supply Voltage: 3V | Number of Channels: 4 | Number of Outputs: 7 | Number of Bits: 7 | Logic Function: Demultiplexer, Decoder | Max Operating Temp: 125°C | SOP | Texas Instruments | Active | Compliant | In Stock | |
| CD4543BNSRG4 | Package: SOP | Max Supply Voltage: 18V | Min Supply Voltage: 3V | Number of Channels: 4 | Number of Outputs: 7 | Number of Bits: 7 | Logic Function: Demultiplexer, Decoder | Max Operating Temp: 125°C | SOP | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on CD4543BNSR map to package, grade, and reel options.
How to Choose the Right CD4543BNSR Signal Switches, Multiplexers and Decoders
Match the footprint first
Packages here: SOP. Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For CD4543BNSR, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "CD4543BNSR" — include the full suffix (e.g. G4). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for CD4543BNSR product family
Identity
Variant Parameters
Source CD4543BNSR with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 2 ordering variants from Texas Instruments. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the CD4543BNSR product family.