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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | 74ACTQ |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | Tri-State, Non-Inverted |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOP |
The 74ACTQ241SC is a dual-channel non-inverting buffer from National Semiconductor, designed for high-speed bus applications. Operating from 4.5V to 5.5V, it delivers 24mA output current per channel with Tri-State outputs for bus isolation. The 74ACTQ logic family combines low power consumption with high noise immunity. Its 20-SOIC package is ideal for space-constrained designs. Typical applications include memory buffering, peripheral drivers, and general-purpose logic interfacing in 5V systems.
- High Output Drive (24mA): Ensures reliable signal transmission to heavily loaded buses and long traces.
- Tri-State Outputs: Enables multiple devices to share a common bus without data corruption.
- Wide Temperature Range (-40°C to 85°C): Suitable for industrial and automotive environments.
- TTL-Compatible Inputs: Simplifies interfacing with legacy 5V TTL logic families.
Bus Interfacing for Microcontrollers
The Tri-State outputs allow multiple devices to share a common data bus without contention. The 24mA sink/source capability ensures reliable signal integrity over moderate trace lengths.
Signal Buffering for High-Capacitance Loads
When driving multiple inputs or long PCB traces, the 74ACTQ241SC provides the necessary drive strength (24mA) to maintain fast edge rates and reduce propagation delays.
Level Shifting in Mixed-Voltage Systems
With TTL-compatible inputs and 5V operation, this buffer can interface between 3.3V logic outputs and 5V peripherals, ensuring proper logic levels.
Memory Address/Data Line Driving
In memory subsystems, the non-inverting buffer with Tri-State control isolates the memory array from the processor bus, preventing loading effects and improving speed.
Industrial Control I/O Expansion
The wide operating temperature range (-40°C to 85°C) makes it suitable for industrial controllers requiring robust signal buffering in harsh environments.
Test Equipment and Instrumentation
For automated test equipment, the Tri-State feature enables multiplexing of test signals to multiple measurement points, simplifying channel expansion.
- Q: What is the logic family of the 74ACTQ241SC?
- A: The 74ACTQ241SC belongs to the 74ACTQ logic family, offering advanced CMOS performance with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a dual-channel, non-inverting buffer with Tri-State outputs, ideal for bus driving and signal buffering.
- Q: How many channels does it have?
- A: It features 2 channels, each providing independent buffering with Tri-State control.
- Q: What is the output type?
- A: The outputs are Tri-State (non-inverted), allowing connection to shared buses with high-impedance state.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What package is available?
- A: It comes in a 20-SOIC package (0.295", 7.50mm width), suitable for surface-mount applications.
74ACTQ241SC.pdf
- Q: What is the logic family of the 74ACTQ241SC?
- A: The 74ACTQ241SC belongs to the 74ACTQ logic family, offering advanced CMOS performance with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a dual-channel, non-inverting buffer with Tri-State outputs, ideal for bus driving and signal buffering.
- Q: How many channels does it have?
- A: It features 2 channels, each providing independent buffering with Tri-State control.
- Q: What is the output type?
- A: The outputs are Tri-State (non-inverted), allowing connection to shared buses with high-impedance state.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What package is available?
- A: It comes in a 20-SOIC package (0.295", 7.50mm width), suitable for surface-mount applications.