SN74LVC125ADIn StockTexas Instruments
SN74LVC125AD is a quadruple bus buffer gate with 3-state outputs from Texas Instruments LVC family, featuring 1.65V-5.5V operation, 24mA output drive, and 50pF load capacitance. From $0.3563, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN74LVC125AD Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3563(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quadruple 3-state bus buffer with active-low output enable for flexible bus isolation
- Wide supply voltage range: 1.65V to 5.5V for mixed-voltage system compatibility
- High output drive: 24mA sink/source current for driving heavy bus loads
- LVC family low-voltage CMOS with TTL-compatible inputs and fast propagation delays
- Available in compact 14-pin SOIC (Small Outline) package for space-constrained designs
Applications
The SN74LVC125AD is widely used in microcontroller and microprocessor bus expansion systems where multiple peripherals share a common data or address bus. Its 3-state outputs make it ideal for bidirectional bus arbitration in embedded systems, FPGAs, and DSP boards. It is also commonly applied in level-shifting and signal buffering between 3.3V and 5V logic domains in industrial control, communication, and consumer electronics designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | LVC/LCX/Z |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| 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 | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 6ns |
| Propagation Delay (tpd) | 13.8ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| 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 |
| ## SN74LVC125AD Alternates Showing results | Image |
| 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 SN74LVC125AD:
Bus Driver, LVC/LCX/Z Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, LVC/LCX/Z Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, LVC/LCX/Z Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, LVC/LCX/Z Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, LVC/LCX/Z Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, LVC/LCX/Z Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Frequently Asked Questions
What is the supply voltage range of the SN74LVC125AD?
The SN74LVC125AD operates over a wide supply voltage range of 1.65V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This flexibility allows it to interface between different voltage domains in mixed-supply designs.
How many buffer channels does the SN74LVC125AD have and how are they enabled?
The SN74LVC125AD contains four independent bus buffer channels, each with its own active-low output enable (OE) pin. When OE is low, the output follows the input; when OE is high, the output enters a high-impedance (3-state) condition, allowing the pin to be disconnected from the bus.
What is the maximum output current of the SN74LVC125AD?
The SN74LVC125AD supports a maximum output low current (I_OL) of 24mA, enabling it to drive bus lines with up to 50pF load capacitance. This makes it suitable for buffering data and address buses in embedded and communication systems.
What package is the SN74LVC125AD available in?
The SN74LVC125AD is housed in a 14-pin Small Outline Integrated Circuit (SOIC) package, which is suitable for surface-mount assembly. The compact package is ideal for PCB designs where board space is limited.
Can the SN74LVC125AD be used as a logic level shifter between 3.3V and 5V?
Yes, the SN74LVC125AD features TTL-compatible inputs and can accept 5V input signals while operating from a 3.3V supply, making it effective for unidirectional level shifting from 5V to 3.3V logic systems in mixed-voltage designs.
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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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