CD4043BE-NG Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD4043BE-NG is a quad 3-state NOR R/S latch from Texas Instruments built in CMOS 4000-series logic. It features four independent set-reset latches with 3-state outputs controlled by a common enable pin, operating over a wide 3 V to 18 V supply range. Packaged in a 16-pin PDIP for easy through-hole prototyping and industrial use.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD4043BE-NG Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD4043BE-NG?
- Quad NOR R/S latch with 3-state outputs enable multi-device bus sharing from a single common enable pin
- Wide 3 V to 18 V CMOS supply voltage range supports both low-voltage and high-voltage logic systems
- Low quiescent power consumption characteristic of the CMOS 4000-series family reduces heat dissipation in battery-powered designs
- 16-pin PDIP package is compatible with standard breadboards and through-hole PCB assembly
What is CD4043BE-NG used for?
The CD4043BE-NG is commonly used in data storage and bus interface circuits where multiple latches must drive a shared bus line under 3-state output control. It is also applied in keyboard scanning circuits, memory address decoding, and flag/status register implementations in microcontroller-based industrial control systems. Its wide supply voltage range makes it versatile for battery-operated portable equipment and industrial automation controllers operating up to 18 V.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the CD4043BE-NG datasheet?
CD4043BE-NG Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD4043BE-NG?
Compatible alternatives and drop-in replacements for CD4043BE-NG:
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
What type of latch is implemented in the CD4043BE-NG?
The CD4043BE-NG contains four independent NOR-based R/S (Reset/Set) latches. In a NOR R/S latch, the output is set to HIGH when the Set input is asserted HIGH, and reset to LOW when the Reset input is HIGH. When both inputs are LOW, the latch retains its previous state, making it suitable for one-bit memory storage in sequential digital logic designs.
How do the 3-state outputs of the CD4043BE-NG work?
The CD4043BE-NG features a common 3-state output enable pin shared across all four latches. When the enable is asserted, all four outputs reflect their stored latch state. When the enable is deasserted, all outputs enter a high-impedance (floating) state, allowing multiple CD4043BE-NG devices to be connected to the same bus without signal contention.
What is the operating supply voltage range of the CD4043BE-NG?
The CD4043BE-NG operates over a wide supply voltage range of 3 V to 18 V, which is standard for the CMOS 4000-series logic family. This broad range allows the device to interface with low-voltage 3.3 V or 5 V microcontroller systems as well as higher-voltage industrial logic running at 12 V or 15 V without requiring additional level translation.
What package does the CD4043BE-NG use and what does the BE-NG suffix mean?
The CD4043BE-NG is housed in a 16-pin Plastic Dual In-line Package (PDIP). The 'BE' suffix indicates the standard plastic DIP package version, while 'NG' typically refers to a specific production or environmental compliance designation from Texas Instruments. The PDIP package is compatible with standard 0.1-inch pitch breadboards and through-hole PCB footprints.
What are the most common applications for the CD4043BE-NG?
The CD4043BE-NG is used in digital systems requiring shared-bus latch arrays, such as status register implementations, flag storage in microcontroller systems, and keyboard or switch matrix scanning. Its 3-state outputs are particularly valuable in bus-oriented architectures where multiple peripheral devices share a common data or control bus, and the wide voltage range extends its use into industrial and automotive control systems.
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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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