CD74HC125EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments CD74HC125 is a quad bus buffer and driver with active-low output enables in the HC CMOS logic family. Key specs: 2V to 6V supply, 50 pF load capacitance, 14-pin PDIP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC125EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad independent output enables (active-low) allow selective tri-stating of each buffer channel for flexible bus arbitration
- Wide 2V to 6V supply voltage range ensures compatibility across 3.3V and 5V CMOS and TTL logic systems
- Unidirectional bus driver with high output drive supports reliable signal transmission on capacitively loaded data buses
Applications
The CD74HC125EE4 is used as a bus interface buffer in microcontroller-based systems, memory interfaces, and data buses where tri-state control and signal buffering are required. Its active-low output enables allow multiple devices to share a common bus without contention in I2C expanders, address decoders, and peripheral interfaces. The 14-pin PDIP through-hole package suits prototyping and legacy board designs requiring easy manual assembly.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | DUMMY VAL |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T14 |
| 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 | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.16mA |
| Prop. Delay@Nom-Sup | 30ns |
| Propagation Delay (tpd) | 150ns |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC125EE4:
Frequently Asked Questions
What does the CD74HC125 do?
The CD74HC125 is a quad unidirectional bus buffer with individual active-low output enable controls per channel, allowing each buffer to be independently placed in a high-impedance tri-state or active output drive state for bus sharing applications.
What supply voltage range does the CD74HC125 support?
The CD74HC125 operates from a supply voltage of 2V to 6V, making it compatible with both 3.3V and 5V logic systems and enabling use in mixed-voltage digital designs without level-translation circuitry.
What package does the CD74HC125EE4 use?
The CD74HC125EE4 is available in a 14-pin PDIP (R-PDIP-T14) through-hole package, which is convenient for prototyping on breadboards and for PCB assemblies that require manually soldered components.
What are common applications for the CD74HC125?
Common applications include data bus buffering and isolation, signal fan-out driving, address decoding interfaces, microcontroller peripheral connections, and any design where tri-state control of multiple output lines is needed to prevent bus contention.
How does the CD74HC125 differ from the CD74HC126?
The CD74HC125 has active-low output enables, meaning a logic LOW on each OE pin activates the output, while the CD74HC126 has active-high output enables. The choice depends on which control signal polarity is more convenient in the target system.
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
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”