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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 32mA, 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 48-BSSOP (0.295", 7.50mm Width) |
| Supplier Device Package | 48-BSSOP (0.295", 7.50mm Width) |
The CD74FCT16244ATSM is a high-speed, non-inverting buffer from Harris Corporation, designed for 5V systems. It features four channels with 3-State outputs, providing excellent drive capability with 32mA source and 64mA sink current. Operating from 4.5V to 5.5V, this buffer is ideal for bus interfacing, memory driving, and signal buffering in industrial and telecom applications. Its 48-BSSOP package offers a compact solution for dense PCB layouts.
- High Drive Current (64mA Sink): Ensures reliable signal transmission over long bus lines and into capacitive loads, reducing signal degradation.
- 3-State Outputs: Allows multiple devices to share a common bus, preventing data collisions and enabling efficient multiplexing.
- Wide 4.5V to 5.5V Supply Range: Compatible with standard 5V logic, simplifying power supply design and ensuring interoperability.
- Non-Inverting Buffer: Preserves signal polarity, reducing design complexity and eliminating the need for additional inverters.
High-Speed Bus Interfacing
Use the CD74FCT16244ATSM to buffer address and data lines between a high-speed microprocessor and memory or peripheral devices. The 3-State outputs allow multiple devices to share the same bus without contention, while the high sink current (64mA) ensures signal integrity over long PCB traces.
Signal Buffering for Backplane Drivers
In telecom and networking equipment, this buffer can drive signals across a backplane. Its 4.5V to 5.5V supply range matches legacy 5V backplane logic, and the non-inverting function preserves signal polarity, simplifying system design.
Memory Address/Data Line Driving
When connecting a 5V memory array to a controller, this buffer provides the necessary fan-out and drive strength. The 32mA source capability can charge the parasitic capacitance of multiple memory chips, reducing access time and improving reliability.
Level Shifting for Mixed-Voltage Systems
Although designed for 5V, the TTL-compatible inputs allow interfacing with 3.3V logic outputs. This enables the buffer to act as a unidirectional level shifter, translating 3.3V signals to a full 5V output swing for downstream 5V-only peripherals.
Industrial Control I/O Expansion
In PLCs and industrial controllers, this buffer can drive indicator LEDs, relays, or optocouplers. The high sink current (64mA) is sufficient to drive multiple LEDs in parallel, while the 3-State feature allows the outputs to be tri-stated during system reset or diagnostics.
Test and Measurement Equipment
For automated test equipment (ATE), the CD74FCT16244ATSM can buffer stimulus signals to a device under test (DUT). The fast propagation delay and high drive current ensure accurate timing and voltage levels, critical for parametric testing.
- Q: What is the logic family of the CD74FCT16244ATSM?
- 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 non-inverting buffer with 4 channels, designed to strengthen and drive signals without changing their logic state.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing the outputs to be disabled (high-impedance) for bus-oriented applications.
- Q: What is the operating voltage range?
- A: The CD74FCT16244ATSM operates from 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What is the output current capability?
- A: It can source 32mA and sink 64mA, providing robust drive for capacitive loads and bus lines.
- Q: What package is available?
- A: It comes in a 48-BSSOP (0.295", 7.50mm Width) package, ideal for space-constrained designs.
CD74FCT16244ATSM.pdf
- Q: What is the logic family of the CD74FCT16244ATSM?
- 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 non-inverting buffer with 4 channels, designed to strengthen and drive signals without changing their logic state.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing the outputs to be disabled (high-impedance) for bus-oriented applications.
- Q: What is the operating voltage range?
- A: The CD74FCT16244ATSM operates from 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What is the output current capability?
- A: It can source 32mA and sink 64mA, providing robust drive for capacitive loads and bus lines.
- Q: What package is available?
- A: It comes in a 48-BSSOP (0.295", 7.50mm Width) package, ideal for space-constrained designs.