Texas Instruments SN74ALVC244DW
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.08 | $1.08 |
| 15+ | $1.05 | $15.75 |
| 25+ | $1.03 | $25.75 |
| 50+ | $0.97 | $48.50 |
| 100+ | $0.86 | $86.00 |
| N+ | $0.17 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74ALVC |
| Packaging | Marketplace | Tube |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
| ROHS |  |
The SN74ALVC244DW from Texas Instruments is a high-performance octal buffer designed for low-voltage, high-speed systems. Operating from 1.65V to 3.6V, it provides 24mA of output drive, making it suitable for bus-oriented applications. The 3-State outputs allow for connection to shared data lines, while the non-inverting configuration preserves signal integrity. Housed in a 20-pin SOIC package, this buffer is ideal for memory interfacing, level shifting, and general-purpose signal buffering in 1.8V, 2.5V, and 3.3V digital systems.
- Wide 1.65V to 3.6V Supply Range: Compatible with 1.8V, 2.5V, and 3.3V logic, simplifying mixed-voltage design.
- High 24mA Output Drive: Ensures reliable signal transmission over long traces and into multiple loads.
- 3-State Outputs: Enables bus sharing and prevents contention in multiplexed architectures.
- Industry-Standard 74ALVC Family: Guarantees low propagation delay and high-speed operation for modern processors.
High-Speed Bus Interfacing
Use the SN74ALVC244DW to buffer address and data lines between a low-voltage FPGA (1.8V/2.5V) and a 3.3V memory controller. The 3-State outputs prevent bus contention during idle cycles, and the 24mA sink/source capability ensures signal integrity at high clock rates.
Signal Buffering for Mixed-Voltage Systems
In systems with 1.8V and 3.3V logic domains, this buffer provides a clean interface. Its wide 1.65V to 3.6V supply range allows it to operate on either rail, while the non-inverting path preserves signal polarity for control signals like RESET or CLOCK ENABLE.
Driving High-Capacitance Loads
When a microcontroller needs to drive multiple inputs (e.g., 8 peripheral chips), the ALVC244's 24mA output current can handle the combined capacitance without significant delay. This reduces the need for external discrete buffers.
Level Shifting for SPI and I2C Buses
For SPI buses operating at 3.3V connected to 1.8V sensors, the SN74ALVC244DW can act as a unidirectional level shifter. The 3-State outputs allow multiple sensors to share the bus, with the output enable pin controlling access.
Memory Address Latching and Buffering
In embedded systems with SRAM or Flash, this buffer isolates the CPU address bus from the memory array. The 3-State feature is critical during memory read/write cycles to avoid data corruption.
Industrial Control Logic Isolation
In PLCs or industrial controllers, this buffer can drive long PCB traces or backplane connections. The -40°C to 85°C temperature range ensures reliable operation in harsh factory environments.
- Q: What is the logic family of the SN74ALVC244DW?
- A: It belongs to the 74ALVC family, designed for low-voltage, high-speed operation.
- Q: What is the function of this IC?
- A: It is a dual 4-bit non-inverting buffer with 3-State outputs, ideal for bus driving.
- Q: How many channels does it have?
- A: It features 2 channels, each handling 4 bits, for a total of 8 buffer circuits.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses with high-impedance control.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, making it compatible with 1.8V, 2.5V, and 3.3V systems.
- Q: What package is available?
- A: It comes in a 20-pin SOIC (DW) package with a 7.50mm width.
SN74ALVC244DW.pdf
- Q: What is the logic family of the SN74ALVC244DW?
- A: It belongs to the 74ALVC family, designed for low-voltage, high-speed operation.
- Q: What is the function of this IC?
- A: It is a dual 4-bit non-inverting buffer with 3-State outputs, ideal for bus driving.
- Q: How many channels does it have?
- A: It features 2 channels, each handling 4 bits, for a total of 8 buffer circuits.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses with high-impedance control.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, making it compatible with 1.8V, 2.5V, and 3.3V systems.
- Q: What package is available?
- A: It comes in a 20-pin SOIC (DW) package with a 7.50mm width.
