Texas Instruments SN74AHC126PWR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.25 | $0.25 |
| 15+ | $0.24 | $3.60 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.22 | $11.00 |
| 100+ | $0.20 | $20.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74AHC |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | 8mA, 8mA |
| Voltage - Supply | 2V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 14-TSSOP |
The SN74AHC126PWR from Texas Instruments is a quad non-inverting buffer featuring 3-state outputs. Operating from 2V to 5.5V, it provides excellent compatibility with both 3.3V and 5V systems. Each of its 4 channels can source or sink 8mA, making it suitable for driving logic inputs and light loads. The 14-pin TSSOP package is compact and ideal for space-constrained applications. This buffer is commonly used in bus interfacing, signal buffering, and level shifting across industrial and consumer electronics.
- 3-State Outputs: Enables bus sharing and prevents bus contention, enhancing system reliability.
- Wide 2V to 5.5V Supply Range: Compatible with both 3.3V and 5V logic, simplifying mixed-voltage design.
- High-Speed 74AHC Family: Provides fast propagation delays, suitable for high-frequency signal paths.
- Low Power Consumption: CMOS technology ensures minimal static power dissipation, ideal for battery-powered devices.
- Compact TSSOP-14 Package: Saves PCB space while providing 4 channels of buffering.
Bus Interfacing and Isolation
The 3-state outputs allow the SN74AHC126PWR to be used in bus-oriented systems, where multiple devices share a common data line. The output enable pins provide controlled access to the bus.
Signal Buffering for Microcontrollers
This buffer can strengthen weak microcontroller signals, ensuring clean and reliable transmission to peripheral devices over longer PCB traces.
Level Shifting Between 3.3V and 5V
With a supply range of 2V to 5.5V, it can be used to shift signals between 3.3V and 5V logic levels, enabling communication between different voltage domains.
Driving Multiple Loads
Each of the 4 outputs can source or sink 8mA, allowing the buffer to drive multiple logic gates or low-current LEDs simultaneously.
Industrial Control Logic
In industrial control panels, this buffer can condition and distribute control signals to various modules, improving signal integrity and noise immunity.
Memory Address Buffering
The 3-state outputs are ideal for buffering address or data lines in memory systems, preventing bus contention during read/write operations.
- Q: What logic family does the SN74AHC126PWR belong to?
- A: It is part of the 74AHC (Advanced High-Speed CMOS) family, offering high speed with low power consumption.
- Q: What is the function of this device?
- A: It is a quad (4-channel) non-inverting buffer with 3-state outputs, allowing the outputs to be disabled for bus sharing.
- Q: What is the output type?
- A: The outputs are 3-state, meaning they can be high, low, or high-impedance (Hi-Z) when disabled via the output enable pins.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, making it compatible with 3.3V and 5V logic systems.
- Q: What is the package type?
- A: It is available in a 14-pin TSSOP package with a width of 4.40mm, suitable for compact surface-mount designs.
- Q: What is the output current capability?
- A: Each output can source or sink 8mA, suitable for driving standard logic inputs and light loads.
- Q: What logic family does the SN74AHC126PWR belong to?
- A: It is part of the 74AHC (Advanced High-Speed CMOS) family, offering high speed with low power consumption.
- Q: What is the function of this device?
- A: It is a quad (4-channel) non-inverting buffer with 3-state outputs, allowing the outputs to be disabled for bus sharing.
- Q: What is the output type?
- A: The outputs are 3-state, meaning they can be high, low, or high-impedance (Hi-Z) when disabled via the output enable pins.
- Q: What is the operating voltage range?
- A: It operates from 2V to 5.5V, making it compatible with 3.3V and 5V logic systems.
- Q: What is the package type?
- A: It is available in a 14-pin TSSOP package with a width of 4.40mm, suitable for compact surface-mount designs.
- Q: What is the output current capability?
- A: Each output can source or sink 8mA, suitable for driving standard logic inputs and light loads.

SN74AHC126PWR.pdf