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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 8 |
| 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-TFSOP (0.240", 6.10mm Width) |
| Supplier Device Package | 48-TFSOP (0.240", 6.10mm Width) |
The CD74FCT16245ATMT is a high-performance 16-bit non-inverting transceiver from Harris Corporation's FCT logic family. Operating from a 4.5V to 5.5V supply, it provides bidirectional data transfer with 3-State outputs for bus-oriented applications. With a robust output current capability of 32mA source and 64mA sink, it can drive heavily loaded buses and long transmission lines. The device is available in a compact 48-pin TFSOP package and operates over an industrial temperature range of -40°C to +85°C. Its fast propagation delays and low power consumption make it ideal for memory interfacing, backplane communication, and general-purpose data buffering in 5V digital systems.
- High Output Drive (64mA Sink): Ensures signal integrity on long or heavily loaded buses, reducing the need for additional buffer ICs.
- Industrial Temperature Range (-40°C to +85°C): Suitable for automotive and industrial environments where temperature extremes are common.
- 3-State Outputs: Allows multiple devices to share a common data bus without contention, simplifying system design.
- FCT Logic Family Speed: Provides fast propagation delays (typically < 5ns), enabling high-frequency operation in performance-critical paths.
High-Density Bus Interfacing
In systems with wide data buses (16-bit or more), the CD74FCT16245ATMT provides a single-chip solution for bidirectional communication. Its 3-State outputs allow multiple devices to share the same bus lines without electrical conflicts, simplifying PCB layout and reducing component count.
Memory Data Buffering
When connecting a high-speed microprocessor to SRAM or DRAM, this transceiver buffers the address and data lines. The high drive capability (64mA sink) ensures signal integrity over longer PCB traces, reducing the need for additional buffer stages.
Level Shifting in Mixed-Voltage Systems
Although designed for 5V operation, the TTL-compatible inputs allow interfacing with 3.3V logic devices that have 5V-tolerant outputs. This enables communication between legacy 5V peripherals and newer 3.3V microcontrollers in industrial control panels.
Backplane Communication in Telecom Equipment
In telecom racks, multiple line cards communicate over a shared backplane. The FCT family's fast propagation delay and controlled output edges minimize crosstalk and ringing, ensuring reliable data transfer at high clock rates.
Automotive ECU Sensor Signal Conditioning
In automotive engine control units, this transceiver can buffer sensor signals (e.g., crankshaft position) to the main processor. The wide -40°C to +85°C temperature range ensures reliable operation under extreme under-hood conditions.
Industrial PLC I/O Expansion
Programmable Logic Controllers (PLCs) often need to drive multiple I/O modules. This buffer/transceiver can fan out control signals to several modules, providing the necessary current (32mA source) to drive optocouplers or relay drivers without additional components.
- Q: What is the logic family of the CD74FCT16245ATMT?
- 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 16-bit (dual 8-bit) non-inverting transceiver, designed for bidirectional asynchronous communication between two data buses.
- Q: How many channels does it have?
- A: It features 2 channels, each handling 8 bits, for a total of 16 bits of data transfer.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to a shared bus without contention when disabled.
- Q: What is the operating voltage range?
- A: The recommended supply voltage range is 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What package is available?
- A: It is offered in a 48-pin TFSOP (Thin Fine-pitch Small Outline Package) with a 6.10mm body width.
CD74FCT16245ATMT.pdf
- Q: What is the logic family of the CD74FCT16245ATMT?
- 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 16-bit (dual 8-bit) non-inverting transceiver, designed for bidirectional asynchronous communication between two data buses.
- Q: How many channels does it have?
- A: It features 2 channels, each handling 8 bits, for a total of 16 bits of data transfer.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for connection to a shared bus without contention when disabled.
- Q: What is the operating voltage range?
- A: The recommended supply voltage range is 4.5V to 5.5V, making it suitable for standard 5V systems.
- Q: What package is available?
- A: It is offered in a 48-pin TFSOP (Thin Fine-pitch Small Outline Package) with a 6.10mm body width.