SN74HC125DRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74HC125DRG4 is a quad bus buffer and line driver from Texas Instruments with 3-state outputs, featuring four independent non-inverting buffer channels each controlled by an active-low output enable pin. Operating from 2V to 6V supply using High-Speed CMOS (HC) technology, it provides 6 mA sink current in a 14-pin SOIC package on tape and reel. Ideal for bus isolation, signal driving, and data bus interfacing applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN74HC125DRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad non-inverting 3-state buffer with four independently controlled output enable pins
- High-Speed CMOS (HC) family operating from 2V to 6V for 3.3V and 5V systems
- 6 mA output sink current with 50 pF load capacitance for reliable bus driving
- Active-low output enable per channel for flexible tri-state bus management
- 14-pin SOIC package on tape and reel for automated SMT assembly
- RoHS compliant with JESD-609 code e4 lead-free termination
Applications
The SN74HC125DRG4 is widely used in microprocessor data bus isolation, memory bus interfaces, and board-to-board signal driving where individual channel tri-state control is needed. It is also applied in embedded systems, PLC I/O expansion modules, and communication backplane designs requiring reliable high-speed CMOS bus buffering.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.006A |
| Number of Bits | 1 |
| Number of Functions | 4 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 30ns |
| Propagation Delay (tpd) | 190ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HC125DRG4:
Bus Driver, HC/UH Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Frequently Asked Questions
How many channels does the SN74HC125DRG4 have and how are they controlled?
The SN74HC125DRG4 contains four independent non-inverting buffer channels. Each channel has its own active-low output enable (OE) pin, allowing individual channel control. When OE is high, the output enters a high-impedance (tri-state) condition, effectively disconnecting the channel from the bus.
What supply voltage range does the SN74HC125DRG4 support?
The SN74HC125DRG4 operates from a supply voltage range of 2V to 6V, making it compatible with both 3.3V and 5V CMOS logic systems. The High-Speed CMOS (HC) family also provides good output drive strength and propagation speed across this voltage range.
What is the output drive current of the SN74HC125DRG4?
The SN74HC125DRG4 provides an output sink current (IOL) of 6 mA at the nominal supply voltage. With a rated load capacitance of 50 pF, it can reliably drive standard TTL and CMOS bus loads in digital systems and backplane interconnects.
What package and suffix does the SN74HC125DRG4 come in?
The SN74HC125DRG4 is housed in a 14-pin SOIC (Small Outline IC, JEDEC R-PDSO-G14) in tape and reel format (indicated by the R suffix). The DG4 suffix confirms it is a Green, RoHS-compliant, lead-free device meeting JESD-609 code e4 requirements.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
Why Buy from FindMyChip
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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”