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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74ACT |
| 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 | 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 (0.209", 5.30mm Width) |
| Supplier Device Package | 20-SOIC |
The MC74ACT240MR2 is an inverting buffer from onsemi, designed for 5V systems. It operates from 4.5V to 5.5V and delivers 24mA output current per channel. The 3-State outputs enable bus-oriented applications, while the 74ACT family provides TTL-compatible inputs. Housed in a 20-SOIC package, this buffer is ideal for inverting signal buffering, bus driving, and industrial control applications.
- High Output Drive (24mA): Ensures reliable signal integrity for heavy loads.
- 3-State Outputs: Enables safe bus sharing in multi-device systems.
- TTL-Compatible Inputs: Simplifies mixed-voltage interfacing.
- Inverting Function: Useful for active-low logic designs.
Inverting Bus Drivers for Microprocessor Systems
The 24mA output drive and 3-State capability make this buffer ideal for inverting address or data lines in microprocessor-based systems, ensuring reliable bus communication.
Signal Inversion in Industrial Control Panels
In PLC systems, this buffer inverts sensor signals to match controller logic levels, providing clean transitions and noise immunity.
Level Shifting with Inversion
The TTL-compatible inputs allow interfacing with 3.3V logic while operating at 5V, with the added benefit of signal inversion for active-low protocols.
Driving High-Capacitance Loads
With 24mA output current, this buffer can drive long cables or multiple inputs, making it suitable for backplane applications.
Memory Control Signal Buffering
For DRAM or SRAM interfaces, this buffer inverts and buffers read/write control signals, reducing timing skew and improving signal integrity.
Automotive Infotainment Systems
The -40°C to 85°C range makes it suitable for automotive cabin electronics, where temperature variations are common.
- Q: What is the logic family of the MC74ACT240MR2?
- A: It is from the 74ACT family, offering high-speed CMOS with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is an inverting buffer with 2 channels, providing signal inversion and buffering.
- Q: What is the output type?
- A: It has 3-State outputs, allowing connection to shared buses.
- Q: What is the voltage range?
- A: It operates from 4.5V to 5.5V, suitable for 5V systems.
- Q: What is the output current?
- A: It can source and sink 24mA, providing strong drive capability.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 85°C, suitable for industrial applications.
MC74ACT240MR2.pdf
- Q: What is the logic family of the MC74ACT240MR2?
- A: It is from the 74ACT family, offering high-speed CMOS with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is an inverting buffer with 2 channels, providing signal inversion and buffering.
- Q: What is the output type?
- A: It has 3-State outputs, allowing connection to shared buses.
- Q: What is the voltage range?
- A: It operates from 4.5V to 5.5V, suitable for 5V systems.
- Q: What is the output current?
- A: It can source and sink 24mA, providing strong drive capability.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 85°C, suitable for industrial applications.