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| Product attributes | Property Value |
| Manufacturer | Fairchild Semiconductor |
| Product Series | 74HCT |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 7.2mA, 7.2mA |
| 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-SOIC |
| ROHS |  |
The MM74HCT244WM is an octal buffer from Fairchild Semiconductor, designed for 5V digital systems. Operating in the 74HCT logic family, it provides non-inverting buffering with 3-state outputs. With a supply range of 4.5V to 5.5V and a drive capability of 7.2mA, it effectively drives capacitive loads. The 20-SOIC package is suitable for through-hole or surface-mount assembly. This buffer is ideal for memory addressing, LED driving, and industrial control applications.
- Octal Buffering in One Package: Reduces component count and PCB area, simplifying layout.
- 3-State Outputs: Enables bus sharing and isolation, enhancing system flexibility.
- TTL-Compatible Inputs: Directly interfaces with 5V TTL logic, reducing design complexity.
- Wide Operating Temperature: Reliable from -40°C to 85°C for industrial use.
Microcontroller Output Buffering
Buffer output signals from a microcontroller to drive multiple loads. The 7.2mA drive current ensures adequate fan-out for peripheral devices.
LED Array Driving
Drive LED arrays in display panels. The 3-state outputs allow individual segment control while maintaining signal integrity.
Memory Address Buffering
Buffer address lines between a CPU and memory banks. The non-inverting buffer preserves address polarity, reducing logic errors.
Industrial Control Outputs
Drive relays and actuators in industrial control systems. The wide temperature range ensures reliable operation in factory floors.
Bus Isolation
Isolate a processor from a noisy external bus. The 3-state outputs can disconnect the processor when not in use, protecting it from transients.
Test Point Multiplexing
Route multiple test signals to a single measurement point. The 3-state feature allows selecting one signal at a time.
- Q: What is the logic family of the MM74HCT244WM?
- A: It belongs to the 74HCT logic family, offering TTL-compatible inputs at 5V operation.
- Q: What is the function of this IC?
- A: It is a non-inverting octal buffer with 3-state outputs, designed for signal buffering and driving.
- Q: How many channels does it have?
- A: It has 2 channels, each with 4 bits, totaling 8 buffer lines.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses.
- Q: What is the operating voltage?
- A: It operates from 4.5V to 5.5V, suitable for 5V logic systems.
- Q: What package is available?
- A: It comes in a 20-SOIC package with a 7.50mm width.
MM74HCT244WM.pdf
- Q: What is the logic family of the MM74HCT244WM?
- A: It belongs to the 74HCT logic family, offering TTL-compatible inputs at 5V operation.
- Q: What is the function of this IC?
- A: It is a non-inverting octal buffer with 3-state outputs, designed for signal buffering and driving.
- Q: How many channels does it have?
- A: It has 2 channels, each with 4 bits, totaling 8 buffer lines.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses.
- Q: What is the operating voltage?
- A: It operates from 4.5V to 5.5V, suitable for 5V logic systems.
- Q: What package is available?
- A: It comes in a 20-SOIC package with a 7.50mm width.