SN74AHC1G125DCKR-P Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments SN74AHC1G125DCKR-P is a single-channel tri-state bus buffer with active-low output enable, operating from 2V to 5.5V supply and offering high-speed AHC logic performance. It is designed for signal buffering and bus isolation in mixed-voltage systems. Available in a compact 5-pin SOT-23 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- SN74AHC1G125DCKR-P Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single tri-state buffer with active-low output enable, enabling precise bus isolation and signal gating in multi-master bus architectures
- Wide supply voltage range of 2V to 5.5V ensuring compatibility with both 3.3V and 5V logic systems without level translation
- AHC logic family offering high-speed switching performance with low power consumption compared to older HC/HCT families
- Ultra-compact 5-pin SOT-23 package ideal for space-critical designs in portable consumer electronics and embedded systems
Applications
The SN74AHC1G125DCKR-P is commonly used in microcontroller and FPGA designs to buffer and isolate digital signals on shared data buses, preventing bus contention in systems with multiple drivers. It is also employed in level-compatible signal gating for SPI, I2C, and GPIO lines where tri-state control is needed to selectively enable or disable data paths. Additionally, the device finds use in battery-powered wearables and IoT nodes where its low quiescent current and small SOT-23 footprint are critical design constraints.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the supply voltage range of the SN74AHC1G125DCKR-P?
The SN74AHC1G125DCKR-P operates over a supply voltage range of 2V to 5.5V, making it compatible with both 3.3V and 5V logic systems and suitable for mixed-voltage board designs without requiring additional level shifters.
How does the tri-state output enable work on the SN74AHC1G125DCKR-P?
The SN74AHC1G125DCKR-P features an active-low output enable (OE#) pin; when OE# is driven low, the output passes the input signal, and when OE# is driven high, the output enters a high-impedance tri-state condition, effectively disconnecting it from the bus.
What package does the SN74AHC1G125DCKR-P come in?
The SN74AHC1G125DCKR-P is packaged in a 5-pin SOT-23 (SC-70 compatible) surface-mount package, one of the smallest available for logic devices, making it suitable for space-constrained portable and wearable applications.
What is the logic family of the SN74AHC1G125DCKR-P?
This device belongs to the AHC (Advanced High-Speed CMOS) logic family, which provides faster propagation delays and lower power consumption than standard HC logic while maintaining full compatibility with 2V to 5.5V CMOS and TTL input levels.
What are typical applications for the SN74AHC1G125DCKR-P?
Typical applications include data bus buffering and isolation in microcontroller systems, SPI and I2C bus expansion, GPIO signal gating in embedded designs, and output enable control in mixed-voltage digital systems such as IoT nodes, wearables, and portable instruments.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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