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| Product attributes | Property Value |
| Manufacturer | IDT, Integrated Device Technology Inc |
| Product Series | 74LVC |
| 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 | 2.7V ~ 3.6V |
| 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 |
| ROHS |  |
The 74LVC245AQG is a low-voltage CMOS octal transceiver designed for bidirectional asynchronous communication between data buses. Operating from 2.7V to 3.6V, it provides high-speed signal transmission with 24mA output drive capability. The 3-State outputs and direction control make it ideal for bus-oriented systems, memory interfacing, and level translation in 3.3V environments. Packaged in a compact 20-pin SSOP, this transceiver is a reliable choice for modern digital designs.
- Low-Voltage Operation (2.7V to 3.6V): Optimized for 3.3V systems, reducing power consumption in portable applications.
- High Drive Current (24mA): Ensures robust signal integrity when driving capacitive loads or multiple inputs.
- Bidirectional Capability: Simplifies bus design by allowing data flow in both directions with a single IC.
- 3-State Outputs: Facilitates bus multiplexing and prevents data contention in shared-line architectures.
Bidirectional Bus Transceivers
The 74LVC245AQG is designed for bidirectional data flow between two buses. The direction control pin (DIR) determines the data flow direction, while the output enable (OE) pin can place the outputs in a high-impedance state for bus isolation.
Level Shifting in Mixed-Voltage Systems
Operating at 3.3V, this transceiver can interface between 3.3V microcontrollers and 2.5V or 1.8V peripherals. The 3.3V supply ensures proper logic levels for both sides when the input thresholds are compatible.
Memory Interface Buffering
In systems with external memory, the 74LVC245AQG can buffer the address and data lines, providing the necessary drive current (24mA) to handle the capacitive load of memory modules and maintain signal integrity.
Data Acquisition Systems
For multi-channel data acquisition, this transceiver can route data from multiple sensors to a single ADC input. The 3-State outputs allow multiple sources to share a common data line without conflict.
Telecommunications Line Cards
In telecom equipment, the 74LVC245AQG can be used to interface between the backplane bus and individual line card circuits. Its low-voltage operation reduces power consumption in dense, high-speed systems.
Portable Electronics
With a supply range of 2.7V to 3.6V, this transceiver is perfect for battery-powered devices. It enables efficient data transfer between the main processor and peripheral modules while conserving power.
- Q: What is the logic family of the 74LVC245AQG?
- A: It belongs to the 74LVC (Low-Voltage CMOS) logic family.
- Q: What is the function of this IC?
- A: It is an octal (8-bit) non-inverting transceiver, allowing bidirectional data flow.
- Q: How many channels does it have?
- A: It has 8 channels, but the technical data specifies '1' as a simplified channel count for the transceiver function.
- Q: What is the output type?
- A: The outputs are 3-State, enabling bidirectional bus communication.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 3.6V, ideal for low-voltage 3.3V systems.
- Q: What package is available?
- A: It is offered in a 20-pin SSOP package (3.90mm width).
74LVC245AQG.pdf
- Q: What is the logic family of the 74LVC245AQG?
- A: It belongs to the 74LVC (Low-Voltage CMOS) logic family.
- Q: What is the function of this IC?
- A: It is an octal (8-bit) non-inverting transceiver, allowing bidirectional data flow.
- Q: How many channels does it have?
- A: It has 8 channels, but the technical data specifies '1' as a simplified channel count for the transceiver function.
- Q: What is the output type?
- A: The outputs are 3-State, enabling bidirectional bus communication.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 3.6V, ideal for low-voltage 3.3V systems.
- Q: What package is available?
- A: It is offered in a 20-pin SSOP package (3.90mm width).