CD4043BEG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD4043BEG4 is a quad 3-state NOR SR latch by Texas Instruments, integrating 4 independent set-reset flip-flops with tri-state outputs in a standard 16-pin DIP package. It operates from a wide 3 V to 18 V supply range. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD4043BEG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD4043BEG4?
- Quad NOR SR latch with 4 independent set-reset cells enables compact multi-channel state storage in a single 16-pin DIP device
- 3-state output control allows direct bus sharing across multiple latches without external multiplexers, simplifying parallel data bus designs
- Wide 3 V to 18 V supply range provides compatibility with both legacy 5 V TTL systems and modern 3.3 V CMOS logic families
- CMOS technology delivers low quiescent current consumption suitable for battery-backed latch applications in industrial control and instrumentation
What is CD4043BEG4 used for?
The CD4043BEG4 is used as a compact multi-channel SR latch in microprocessor bus interfaces, keyboard encoders, and industrial I/O expansion boards where 4 independent memory cells with tri-state outputs are needed on a shared data bus. Its wide supply voltage tolerance from 3 V to 18 V makes it compatible with both 5 V TTL legacy systems and 3.3 V CMOS logic families in mixed-voltage designs. The 16-pin DIP package also suits breadboard prototyping and educational development platforms where through-hole assembly is preferred.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the CD4043BEG4 datasheet?
CD4043BEG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD4043BEG4?
Compatible alternatives and drop-in replacements for CD4043BEG4:
R-S Latch, 4000/14000/40000 Series, 4-Func, High Level Triggered, 4-Bit, True Output, CMOS, PDIP16
R-S Latch, 4000/14000/40000 Series, 4-Func, High Level Triggered, 4-Bit, True Output, CMOS, CDIP16
Frequently Asked Questions
How does CD4043BEG4 fit into digital control circuits?
It provides 4 independent set-reset latch functions with 3-state outputs, useful when a control board needs retained logic states and bus sharing.
Which supply range should designers verify before using this latch?
Designers should confirm the logic rails stay within the documented 3 V to 18 V operating range across startup, tolerance, and field conditions.
How should procurement compare alternates for this Texas Instruments latch?
Match the quad NOR SR latch function, 3-state output behavior, and standard 16-pin DIP package before approving any substitute on a BOM.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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