| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.00 | $0.00 |
| 15+ | $0.00 | $0.00 |
| 25+ | $0.00 | $0.00 |
| 50+ | $0.00 | $0.00 |
| 100+ | $0.00 | $0.00 |
| N+ | $0.00 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74HCT |
| Packaging | Bulk | |
| 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 | 6mA, 6mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 20-TSSOP |
The MC74HCT240ADT1R2 is an octal inverting buffer/line driver from onsemi's 74HCT family. It features eight inverting buffers arranged in two groups of four, each with independent 3-state output enable controls. Operating from 4.5V to 5.5V, it is fully TTL-compatible, making it a direct replacement for TTL buffers in legacy systems. Each output can drive up to 6mA, suitable for driving buses and multiple loads. The 3-state outputs allow for bus sharing and isolation. Housed in a compact 20-TSSOP package, it is ideal for bus interfacing, signal inversion, and level shifting in computer, industrial, and communication systems.
- TTL-Compatible Inputs: Directly interfaces with 5V TTL logic, simplifying system integration.
- Octal (8-Channel) Buffering: Provides eight inverting buffers in a single package, saving board space.
- 3-State Outputs: Enables bus sharing and prevents signal contention in multi-device systems.
- Compact TSSOP Package: Ideal for space-constrained PCB designs.
- Wide Temperature Range (-55°C to 125°C): Suitable for automotive and industrial applications.
TTL-Compatible Bus Interfacing
The 74HCT family is designed to be pin-compatible with TTL logic, making the MC74HCT240ADT1R2 an ideal drop-in replacement in legacy TTL systems while offering CMOS advantages.
Inverting Line Driving
With 8 inverting buffers, this IC can drive long transmission lines with inverted signals, providing the necessary drive strength and noise immunity for reliable communication.
Memory Address/Data Buffering
In microprocessor systems, this buffer can be used to isolate and drive address or data buses, with 3-state outputs preventing bus contention during memory access.
Level Shifting from 5V to 3.3V
When powered at 5V, the inputs are TTL-compatible, allowing it to accept 3.3V logic signals and output 5V levels, useful for interfacing 3.3V microcontrollers with 5V peripherals.
Industrial Control Signal Conditioning
In industrial environments, this buffer can invert and condition control signals, providing clean, strong outputs for driving relays, solenoids, or other actuators.
High-Density PCB Design
The compact TSSOP package saves board space, making it ideal for high-density designs where multiple buffer channels are needed in a small area.
- Q: What is the logic family of the MC74HCT240ADT1R2?
- A: It belongs to the 74HCT (High-Speed CMOS with TTL Compatibility) logic family, designed to be drop-in compatible with TTL logic.
- Q: What is the function of this IC?
- A: It is an octal inverting buffer/line driver with 3-state outputs, used for signal inversion and buffering.
- Q: How many channels does it have?
- A: It has 2 channels, each containing 4 inverting buffers, providing a total of 8 inverting buffer circuits.
- Q: What is the output type?
- A: The outputs are 3-State, allowing them to be disabled (high-impedance) for bus sharing and multiplexing.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for 5V TTL-compatible systems.
- Q: What package is available?
- A: It comes in a 20-pin TSSOP package (0.173" width, 4.40mm), suitable for compact surface-mount designs.
MC74HCT240ADT1R2.pdf
- Q: What is the logic family of the MC74HCT240ADT1R2?
- A: It belongs to the 74HCT (High-Speed CMOS with TTL Compatibility) logic family, designed to be drop-in compatible with TTL logic.
- Q: What is the function of this IC?
- A: It is an octal inverting buffer/line driver with 3-state outputs, used for signal inversion and buffering.
- Q: How many channels does it have?
- A: It has 2 channels, each containing 4 inverting buffers, providing a total of 8 inverting buffer circuits.
- Q: What is the output type?
- A: The outputs are 3-State, allowing them to be disabled (high-impedance) for bus sharing and multiplexing.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for 5V TTL-compatible systems.
- Q: What package is available?
- A: It comes in a 20-pin TSSOP package (0.173" width, 4.40mm), suitable for compact surface-mount designs.