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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 6 |
| Number of Bits per Element | 1 |
| Input Type | - |
| Output Type | - |
| Current - Output High, Low | 3mA, 36mA |
| Voltage - Supply | 3V ~ 18V |
| Operating Temperature | -55°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 16-CDIP (0.300", 7.62mm) |
| Supplier Device Package | 16-CDIP (0.300", 7.62mm) |
The CD4009UBF is a hex inverting buffer from the CD4000 CMOS logic family. It features six independent buffer circuits capable of operating across a wide 3V to 18V supply range. With a robust output current capability of 3mA (source) and 36mA (sink), it is well-suited for driving high-capacitance loads and interfacing between different voltage domains. Its extended temperature range of -55°C to 125°C makes it a reliable choice for industrial and automotive applications. The device is housed in a 16-pin CDIP package, offering a durable solution for demanding environments.
- Wide 3V to 18V Supply Range: Enables use in both 5V and 12V systems, reducing the need for multiple logic families.
- High Sink Current (36mA): Can directly drive LEDs, relays, or other low-power loads without external transistors.
- Extended Temperature Range (-55°C to 125°C): Suitable for military, aerospace, and automotive applications where reliability is critical.
- Standard CMOS Outputs: Provides full rail-to-rail output swing, ensuring maximum noise margin in high-impedance circuits.
High-Voltage Logic Buffering
With a 3V to 18V range, the CD4009UBF can buffer signals in systems using 5V, 12V, or 15V logic rails, making it ideal for industrial control panels and legacy equipment.
Driving High-Capacitance Loads
As a buffer, it provides high current gain (3mA source, 36mA sink) to drive long PCB traces, cables, or multiple gate inputs without significant signal degradation.
CMOS-to-PMIC Interfacing
Its inverting action can be used to generate complementary control signals for power management ICs, ensuring proper enable/disable sequencing in battery-powered devices.
Oscillator Circuits
The inverting buffers can be configured as gain elements in crystal or RC oscillator circuits, providing robust oscillation for microcontroller clock generation.
Automotive Sensor Conditioning
Operating from -55°C to 125°C, it can buffer and invert sensor signals in harsh automotive environments, such as engine control modules.
Level Shifting (High-to-Low)
When powered from a lower rail, it can accept higher-voltage input signals (up to VDD) and output a clean, lower-voltage logic level, simplifying mixed-voltage designs.
- Q: What is the logic family of the CD4009UBF?
- A: The CD4009UBF belongs to the CD4000 series, a classic CMOS logic family.
- Q: What is the function of this IC?
- A: It is a hex (6-channel) inverting buffer, designed to drive high-capacitance loads.
- Q: How many channels does it have?
- A: It features 6 independent buffer channels.
- Q: What is the output type?
- A: The outputs are standard push-pull CMOS, not 3-State or open-drain.
- Q: What is the operating voltage range?
- A: It operates over a wide 3V to 18V supply voltage range.
- Q: What package is available?
- A: It is offered in a 16-pin CDIP (0.300", 7.62mm) ceramic dual-inline package.
CD4009UBF.pdf
- Q: What is the logic family of the CD4009UBF?
- A: The CD4009UBF belongs to the CD4000 series, a classic CMOS logic family.
- Q: What is the function of this IC?
- A: It is a hex (6-channel) inverting buffer, designed to drive high-capacitance loads.
- Q: How many channels does it have?
- A: It features 6 independent buffer channels.
- Q: What is the output type?
- A: The outputs are standard push-pull CMOS, not 3-State or open-drain.
- Q: What is the operating voltage range?
- A: It operates over a wide 3V to 18V supply voltage range.
- Q: What package is available?
- A: It is offered in a 16-pin CDIP (0.300", 7.62mm) ceramic dual-inline package.