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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-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC (0.295", 7.50mm Width) |
The CD74FCT2240ATM is a high-speed inverting buffer from Harris Corporation, designed for 5V digital systems. It features a single channel with 3-State outputs, providing excellent drive capability with 15mA source and 64mA sink current. Operating within a 4.75V to 5.25V supply range, this buffer is ideal for bus-oriented applications, signal conditioning, and driving capacitive loads. Its 20-SOIC package is suitable for space-constrained designs, while the -40°C to 85°C temperature range ensures reliable performance in industrial environments.
- High Sink Current (64mA): Drives heavy capacitive loads and long bus lines with fast edge rates, improving signal integrity.
- 3-State Outputs: Enables bus multiplexing and system isolation, preventing data contention.
- TTL-Compatible Inputs: Simplifies interfacing with standard 5V TTL logic families.
- Wide Temperature Range (-40°C to 85°C): Suitable for industrial and automotive applications.
Bus Line Driving
Use the CD74FCT2240ATM to drive high-capacitance bus lines in 5V digital systems. Its high sink current (64mA) ensures fast signal transitions and maintains signal integrity on long traces.
Memory Address Buffering
Buffer address lines from a CPU to multiple memory banks. The inverting function can be used to simplify PCB routing, while 3-State outputs allow for easy bank selection and isolation.
Signal Inversion and Level Restoration
Employ this buffer to invert logic signals and restore degraded voltage levels. The TTL-compatible inputs ensure reliable operation with legacy 5V logic.
Peripheral Interface Isolation
Isolate a microcontroller from peripheral devices. The 3-State outputs can be placed in high-impedance mode to disconnect the peripheral, preventing bus contention and reducing power consumption.
Industrial Control Logic
In industrial control panels, use this buffer to interface between a PLC's 5V logic and other subsystems. Its wide operating temperature range (-40°C to 85°C) ensures reliable operation in harsh environments.
Test Equipment and Instrumentation
Use the buffer in test fixtures to drive signals to multiple measurement points. The 3-State feature allows multiple test modules to share a common data bus without interference.
- Q: What is the logic family of the CD74FCT2240ATM?
- A: This device belongs to the FCT (Fast CMOS TTL) logic family, offering high-speed performance with TTL-compatible inputs and outputs.
- Q: What is the function of this IC?
- A: It is a single-channel inverting buffer with 3-State outputs, allowing for bus isolation and signal inversion.
- Q: What is the output type?
- A: The outputs are 3-State, enabling connection to shared data buses with high-impedance state control.
- Q: What is the operating voltage range?
- A: The recommended supply voltage range is 4.75V to 5.25V, making it suitable for standard 5V systems.
- Q: What is the package type?
- A: It is available in a 20-SOIC (0.295", 7.50mm Width) surface-mount package.
- Q: What are the output current capabilities?
- A: It can source 15mA and sink 64mA, providing robust drive for various loads.
CD74FCT2240ATM.pdf
- Q: What is the logic family of the CD74FCT2240ATM?
- A: This device belongs to the FCT (Fast CMOS TTL) logic family, offering high-speed performance with TTL-compatible inputs and outputs.
- Q: What is the function of this IC?
- A: It is a single-channel inverting buffer with 3-State outputs, allowing for bus isolation and signal inversion.
- Q: What is the output type?
- A: The outputs are 3-State, enabling connection to shared data buses with high-impedance state control.
- Q: What is the operating voltage range?
- A: The recommended supply voltage range is 4.75V to 5.25V, making it suitable for standard 5V systems.
- Q: What is the package type?
- A: It is available in a 20-SOIC (0.295", 7.50mm Width) surface-mount package.
- Q: What are the output current capabilities?
- A: It can source 15mA and sink 64mA, providing robust drive for various loads.