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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74LVC |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 4 |
| Number of Bits per Element | 1 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 14-SO |
The SN74LVC126ANS from Texas Instruments is a quad non-inverting buffer with 3-State outputs, part of the 74LVC logic family. It is designed for low-voltage, high-speed operation, with a supply range of 1.65V to 3.6V. Each of the four channels can drive up to 24mA, making it suitable for bus-oriented applications. The 3-State outputs allow for connection to shared data buses with high-impedance control. Housed in a 14-pin SOIC package, this buffer is ideal for interfacing microcontrollers with memory, peripherals, or other logic in 3.3V and lower-voltage systems.
- Optimized for 3.3V Systems: Operates from 1.65V to 3.6V, ensuring compatibility with modern low-voltage microcontrollers and DSPs.
- 24mA Output Drive: Provides sufficient current to drive multiple loads or long traces, maintaining signal integrity.
- 3-State Outputs: Enables bus sharing and isolation, preventing data contention in multi-device systems.
- Low Power Consumption: The 74LVC family is known for its low static and dynamic power, making it suitable for power-sensitive designs.
Microcontroller to Peripheral Buffering
The SN74LVC126ANS can buffer address or data lines from a 3.3V microcontroller to multiple peripherals. Its 3-State outputs allow the microcontroller to isolate itself from the bus when not actively communicating, preventing signal conflicts.
Memory Address Line Driving
In systems with multiple memory chips, this buffer can drive the address lines to each chip. The 24mA output drive ensures fast and reliable signal propagation, even with the capacitive load of multiple memory devices.
Bus Isolation in Multi-Board Systems
When connecting multiple PCBs in a system, the 3-State outputs can be used to isolate a board from the backplane bus. This allows for hot-swapping or powering down individual boards without affecting the rest of the system.
Level Shifting for 1.8V to 3.3V Interfaces
With a supply range of 1.65V to 3.6V, this buffer can be used to shift signals from a 1.8V logic device to a 3.3V system. The inputs are tolerant to 3.6V, ensuring safe operation.
Industrial Control Signal Distribution
In industrial controllers, this buffer can distribute control signals from a central processor to multiple actuator drivers or sensor interfaces, ensuring clean and strong signals over longer PCB traces.
Test Equipment and Instrumentation
In test equipment, the 3-State outputs allow for connecting multiple test points to a shared measurement bus. The buffer provides isolation and prevents loading of the device under test.
- Q: What is the logic family of the SN74LVC126ANS?
- A: It belongs to the 74LVC (Low-Voltage CMOS) family, offering low power and high speed.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 4 independent buffer channels.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for high, low, or high-impedance states.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, optimized for 3.3V and lower-voltage systems.
- Q: What package is available?
- A: It comes in a 14-pin SOIC package (5.30mm width).
SN74LVC126ANS.pdf
- Q: What is the logic family of the SN74LVC126ANS?
- A: It belongs to the 74LVC (Low-Voltage CMOS) family, offering low power and high speed.
- Q: What is the function of this IC?
- A: It is a quad (4-channel) non-inverting buffer with 3-State outputs.
- Q: How many channels does it have?
- A: It has 4 independent buffer channels.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for high, low, or high-impedance states.
- Q: What is the operating voltage range?
- A: It operates from 1.65V to 3.6V, optimized for 3.3V and lower-voltage systems.
- Q: What package is available?
- A: It comes in a 14-pin SOIC package (5.30mm width).