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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 15mA, 64mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 20-SSOP (0.154", 3.90mm Width) |
The CD74FCT541ATQM from Harris Corporation is a high-speed inverting buffer designed for 5V digital systems. Operating within a 4.75V to 5.25V supply range, it provides a single channel with 3-State output, capable of sinking or sourcing up to 64mA. This makes it ideal for bus interfacing, signal buffering, and driving high-capacitance loads in computing, industrial, and communication equipment. Its compact 20-SSOP package is suitable for space-constrained designs.
- High Drive Capability (64mA): Can drive heavy loads and long traces, improving signal integrity in complex systems.
- 3-State Output: Enables bus multiplexing and isolation, preventing data contention on shared lines.
- Fast 74FCT Technology: Ensures minimal propagation delay, critical for high-speed data paths.
- Wide Temperature Range (-40°C to 85°C): Suitable for industrial environments with varying thermal conditions.
Bus Interfacing and Isolation
Use the CD74FCT541ATQM to buffer address or data lines between a microcontroller and memory or peripherals. The 3-State output allows the buffer to be disconnected from the bus, preventing contention and enabling multiple devices to share the same lines.
Signal Inversion and Level Restoration
In digital systems, this inverting buffer can restore signal integrity by providing a clean, inverted copy of a weak or noisy signal. Its high-speed 74FCT technology ensures minimal propagation delay, critical for timing-sensitive applications.
Driving High-Capacitance Loads
The buffer can drive loads up to 64mA, making it suitable for driving multiple inputs or long PCB traces with high capacitance. This reduces signal degradation and ensures reliable communication between distant components.
Memory Address Decoding
In memory systems, the inverting buffer can be used to generate active-low chip select signals. By inverting the address lines, it simplifies the logic required for memory bank selection.
Test and Measurement Equipment
In automated test equipment, this buffer can isolate the device under test (DUT) from the measurement circuitry. The 3-State control allows the test system to connect or disconnect the DUT without physical switching.
Industrial Control Inputs
For industrial sensors with open-collector outputs, this buffer can invert and buffer the signal to a clean logic level for a PLC or microcontroller input, providing isolation and signal conditioning.
- Q: What is the logic family of the CD74FCT541ATQM?
- A: This device belongs to the 74FCT logic family, known for high speed and low power consumption.
- Q: What is the function of this IC?
- A: It is a Buffer with Inverting output, providing signal inversion and buffering for digital circuits.
- Q: How many channels does it have?
- A: It features 1 channel, suitable for single-line buffering applications.
- Q: What is the output type?
- A: The output is 3-State, allowing for connection to shared buses with high-impedance control.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, making it compatible with standard 5V systems.
- Q: What package is available?
- A: It comes in a 20-SSOP (0.154", 3.90mm Width) package.
CD74FCT541ATQM.pdf
- Q: What is the logic family of the CD74FCT541ATQM?
- A: This device belongs to the 74FCT logic family, known for high speed and low power consumption.
- Q: What is the function of this IC?
- A: It is a Buffer with Inverting output, providing signal inversion and buffering for digital circuits.
- Q: How many channels does it have?
- A: It features 1 channel, suitable for single-line buffering applications.
- Q: What is the output type?
- A: The output is 3-State, allowing for connection to shared buses with high-impedance control.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, making it compatible with standard 5V systems.
- Q: What package is available?
- A: It comes in a 20-SSOP (0.154", 3.90mm Width) package.