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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | 74FCT |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 32mA, 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-QSOP |
The CD74FCT245DTQM is a high-speed non-inverting transceiver from Harris Corporation's 74FCT family. It operates from a 4.75V to 5.25V supply, with 32mA source and 64mA sink current capability. This single-channel device features 3-State outputs for bus isolation. Packaged in a 20-SSOP, it is designed for bidirectional data transfer in 5V digital systems, offering robust performance for bus-oriented applications.
- Bidirectional Data Flow: Simplifies bus design by handling both transmit and receive in one package.
- High Sink Current (64mA): Ensures reliable data transfer on heavily loaded buses.
- 3-State Outputs: Prevents bus contention and allows multiple devices to share the same lines.
- Wide Temperature Range: Operates from -40°C to 85°C, suitable for industrial applications.
Bidirectional Bus Transceiver
Use the CD74FCT245DTQM to interface two 5V data buses in microprocessor systems. The direction control pin allows data flow in either direction, while 3-State outputs prevent bus contention.
Memory Data Bus Isolation
Isolate the CPU data bus from memory during read/write cycles. The transceiver's high sink current (64mA) ensures reliable data transfer even with multiple memory chips connected.
Level Shifting Between 5V Systems
While not a level shifter, this transceiver can buffer signals between two 5V subsystems, improving drive strength and reducing loading effects on the source.
Peripheral Interface Buffering
Connect external peripherals like ADCs or DACs to a microcontroller bus. The bidirectional capability simplifies board layout by allowing a single device for both read and write paths.
Industrial Sensor Data Acquisition
In industrial control systems, buffer sensor data lines to a central controller. The -40°C to 85°C range ensures operation in harsh factory environments.
Telecommunications Line Cards
Use in telecom equipment to buffer control and data lines between line interface modules and the main switch fabric, ensuring clean signal propagation.
- Q: What is the logic family of the CD74FCT245DTQM?
- A: It belongs to the 74FCT logic family, offering high-speed performance with low power consumption.
- Q: What function does this IC perform?
- A: It is a non-inverting transceiver, enabling bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel, which is a single bidirectional data path.
- Q: What is the output type?
- A: It features 3-State outputs, allowing the device to be disconnected from the bus when not active.
- Q: What is the voltage range?
- A: The supply voltage is 4.75V to 5.25V, compatible with standard 5V logic systems.
- Q: What is the current drive capability?
- A: It can source 32mA and sink 64mA, providing strong drive for bus lines.
CD74FCT245DTQM.pdf
- Q: What is the logic family of the CD74FCT245DTQM?
- A: It belongs to the 74FCT logic family, offering high-speed performance with low power consumption.
- Q: What function does this IC perform?
- A: It is a non-inverting transceiver, enabling bidirectional data flow between two buses.
- Q: How many channels does it have?
- A: It has 1 channel, which is a single bidirectional data path.
- Q: What is the output type?
- A: It features 3-State outputs, allowing the device to be disconnected from the bus when not active.
- Q: What is the voltage range?
- A: The supply voltage is 4.75V to 5.25V, compatible with standard 5V logic systems.
- Q: What is the current drive capability?
- A: It can source 32mA and sink 64mA, providing strong drive for bus lines.