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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 | 1 |
| Number of Bits per Element | 8 |
| 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-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 20-TSSOP |
| ROHS |  |
The MM74HCT541MTC from Fairchild Semiconductor is an 8-bit non-inverting buffer designed for 5V systems. Operating from 4.5V to 5.5V, it provides 3-State outputs with a 7.2mA drive capability. Its TTL-compatible inputs make it an excellent choice for interfacing between TTL and CMOS logic families. The 20-pin TSSOP package is ideal for space-constrained applications requiring high-density mounting.
- TTL-Compatible Inputs: Allows direct replacement of TTL buffers in existing designs, simplifying upgrades.
- 3-State Outputs: Enables bus sharing and prevents bus contention in multi-device systems.
- Standard 5V Operation: Compatible with legacy 5V logic and power supplies, reducing design complexity.
- Compact TSSOP Package: Saves board space while providing full 8-bit buffering capability.
TTL-to-CMOS Interfacing
The MM74HCT541 is specifically designed with TTL-compatible inputs, making it perfect for interfacing legacy TTL logic with CMOS devices. It ensures reliable logic level conversion without additional components.
Microprocessor Bus Buffering
In 5V microprocessor systems, this buffer can isolate the CPU from heavy bus loads. The 3-State outputs allow the CPU to release the bus when not in use, preventing data corruption.
Driving Peripheral Devices
With 7.2mA output drive, this buffer can directly drive multiple TTL inputs, LEDs, or small relays. This reduces the need for external driver ICs and simplifies the overall design.
Memory Address/Data Line Buffering
For SRAM or EPROM interfacing, this buffer can strengthen address and data signals, ensuring reliable read/write operations even with long PCB traces and multiple memory chips.
Industrial Sensor Signal Conditioning
In industrial control systems, this buffer can condition signals from sensors and switches, providing clean, noise-immune logic levels to the controller while protecting it from external interference.
- Q: What is the logic family of the MM74HCT541MTC?
- A: It belongs to the 74HCT (High-Speed CMOS with TTL-compatible inputs) family, allowing direct interfacing with TTL logic.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 1 channel (8 bits), designed to drive high-capacitance loads or buses.
- Q: What type of output does it have?
- A: It features 3-State outputs, enabling connection to shared buses with multiple devices.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for standard 5V TTL systems.
- Q: What is the output current capability?
- A: It can source or sink 7.2mA per output, suitable for driving LEDs and other moderate loads.
- Q: What package is available?
- A: It comes in a 20-pin TSSOP (Thin Shrink Small Outline Package) with a 4.40mm width.
MM74HCT541MTC.pdf
- Q: What is the logic family of the MM74HCT541MTC?
- A: It belongs to the 74HCT (High-Speed CMOS with TTL-compatible inputs) family, allowing direct interfacing with TTL logic.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 1 channel (8 bits), designed to drive high-capacitance loads or buses.
- Q: What type of output does it have?
- A: It features 3-State outputs, enabling connection to shared buses with multiple devices.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for standard 5V TTL systems.
- Q: What is the output current capability?
- A: It can source or sink 7.2mA per output, suitable for driving LEDs and other moderate loads.
- Q: What package is available?
- A: It comes in a 20-pin TSSOP (Thin Shrink Small Outline Package) with a 4.40mm width.