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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | 54ACTQ |
| 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 | 24mA, 24mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-CFlatPack |
| Supplier Device Package | 20-CFP |
The 54ACTQ245WRQMLV is a non-inverting transceiver from National Semiconductor, part of the 54ACTQ logic family. It provides a single bidirectional channel with 3-state outputs, capable of sourcing and sinking 24mA. Operating from a 4.5V to 5.5V supply, it is designed for high-speed bus interfacing in military and aerospace systems. Housed in a 20-pin CFlatPack, it operates over the full military temperature range of -55°C to 125°C.
- Bidirectional Data Flow: Simplifies bus design by allowing data transfer in both directions with a single IC.
- 24mA Source/Sink Drive: Ensures reliable communication on heavily loaded buses, reducing signal degradation.
- 3-State Outputs: Enables bus sharing and isolation, critical for multiplexed and multi-master systems.
- TTL-Compatible Inputs: Allows direct interfacing with legacy TTL logic, simplifying system integration.
Bidirectional Bus Transceiver
Use the 54ACTQ245WRQMLV to interface between two bidirectional data buses. The 3-state outputs and direction control allow data flow in either direction without contention.
Memory Data Bus Isolation
Isolate the memory data bus from the CPU during read/write cycles. The transceiver provides the necessary buffering and direction control for efficient data transfer.
Level Shifting in Mixed-Voltage Systems
With TTL-compatible inputs and 5V operation, it can interface between 3.3V logic and 5V logic, ensuring proper signal levels in mixed-voltage designs.
High-Speed Data Acquisition
Buffer data from high-speed ADCs to a DSP or FPGA. The 24mA drive capability ensures signal integrity over short PCB traces.
Peripheral Component Interconnect
Drive and receive signals on a peripheral bus, such as a memory or I/O bus, in military-grade computing systems. The 3-state outputs allow for multiple peripherals.
Redundant System Architecture
In fault-tolerant systems, use the transceiver to switch between redundant data paths, ensuring continuous operation in case of a failure.
- Q: What is the logic family of the 54ACTQ245WRQMLV?
- A: It belongs to the 54ACTQ logic family, which is advanced CMOS with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with one (1) channel, allowing bidirectional data flow.
- Q: What type of output does it have?
- A: It features 3-state outputs for bus-oriented applications, enabling multiple devices to share a line.
- Q: What is the supply voltage range?
- A: It operates from a standard 5V supply, with a range of 4.5V to 5.5V.
- Q: What is the output current capability?
- A: It can source and sink 24mA of current, providing robust drive for bus lines.
- Q: What is the operating temperature range?
- A: It is specified for the military temperature range of -55°C to 125°C.
54ACTQ245WRQMLV.pdf
- Q: What is the logic family of the 54ACTQ245WRQMLV?
- A: It belongs to the 54ACTQ logic family, which is advanced CMOS with TTL-compatible inputs.
- Q: What is the function of this IC?
- A: It is a non-inverting transceiver with one (1) channel, allowing bidirectional data flow.
- Q: What type of output does it have?
- A: It features 3-state outputs for bus-oriented applications, enabling multiple devices to share a line.
- Q: What is the supply voltage range?
- A: It operates from a standard 5V supply, with a range of 4.5V to 5.5V.
- Q: What is the output current capability?
- A: It can source and sink 24mA of current, providing robust drive for bus lines.
- Q: What is the operating temperature range?
- A: It is specified for the military temperature range of -55°C to 125°C.