Texas Instruments SN74AHC240QPWRQ1
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.62 | $0.62 |
| 15+ | $0.60 | $9.00 |
| 25+ | $0.59 | $14.75 |
| 50+ | $0.55 | $27.50 |
| 100+ | $0.49 | $49.00 |
| N+ | $0.10 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74AHC |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 8mA, 8mA |
| Voltage - Supply | 2V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | Automotive |
| Qualification | AEC-Q100 |
| Mounting Type | Surface Mount |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 20-TSSOP |
| ROHS |
The SN74AHC240QPWRQ1 is a dual inverting buffer from Texas Instruments, part of the 74AHC logic family. It features 3-State outputs and operates over a wide 2V to 5.5V supply range, with 8mA output current per channel. Housed in a compact 20-TSSOP package, it is ideal for automotive and industrial applications requiring signal buffering, bus interfacing, and logic inversion.
- Wide 2V to 5.5V Supply Range: Ensures compatibility with both 3.3V and 5V logic systems, simplifying mixed-voltage designs.
- 3-State Outputs: Allows multiple devices to share a common bus without contention, improving system reliability.
- Automotive Qualified (Q1): AEC-Q100 qualified for use in harsh automotive environments, ensuring long-term durability.
- High-Speed 74AHC Family: Provides fast propagation delays, suitable for high-frequency signal routing.
Automotive ECU Signal Buffering
In automotive engine control units, the SN74AHC240QPWRQ1 buffers and inverts sensor signals, ensuring clean logic levels across the 2V to 5.5V range, even with voltage fluctuations. Its 3-State outputs prevent bus contention in multiplexed ECU architectures.
Industrial Control Bus Interfacing
For PLCs and industrial controllers, this buffer drives long backplane traces with 8mA sink/source capability. The inverting function simplifies logic design, while 3-State outputs allow multiple controllers to share a common data bus safely.
Level Shifting for Mixed-Voltage Systems
With a wide supply range, it can interface 3.3V microcontrollers to 5V peripherals. The inverting buffer provides necessary logic inversion while maintaining signal integrity, reducing the need for external level shifters.
Memory Address Line Driving
In memory subsystems, the 3-State outputs enable the buffer to be isolated when not in use, preventing loading on address lines. The high-speed 74AHC family ensures minimal propagation delay, critical for fast memory access times.
Test Equipment Signal Conditioning
In automated test equipment, this IC conditions signals from DUTs (devices under test). The inverting function and 3-State control allow for flexible signal routing and isolation, improving test accuracy and repeatability.
- Q: What is the logic family of the SN74AHC240QPWRQ1?
- A: It belongs to the 74AHC (Advanced High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a dual inverting buffer with 3-State outputs, ideal for bus driving.
- Q: How many channels does it have?
- A: It has 2 channels (each with 4 buffers, totaling 8 inverting buffers).
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to shared buses.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, making it compatible with 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-pin TSSOP package (4.40mm width).
- Q: What is the logic family of the SN74AHC240QPWRQ1?
- A: It belongs to the 74AHC (Advanced High-Speed CMOS) logic family.
- Q: What is the function of this IC?
- A: It is a dual inverting buffer with 3-State outputs, ideal for bus driving.
- Q: How many channels does it have?
- A: It has 2 channels (each with 4 buffers, totaling 8 inverting buffers).
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to shared buses.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, making it compatible with 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 20-pin TSSOP package (4.40mm width).

SN74AHC240QPWRQ1.pdf