SN74BCT125AN Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
SN74BCT125AN is a quadruple bus buffer gate with 3-state outputs from Texas Instruments, featuring 64mA output current, 50pF load capacitance, and BCT logic family in a DIP-14 package. From $2.83 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN74BCT125AN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.8250(MOQ 85)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74BCT125AN?
- Quadruple bus buffer with independent 3-state output control via active-low enable pins
- High-output drive current of 64mA (IOL) supports heavy bus loads in backplane and board-level designs
- BCT/FBT logic family ensures TTL-compatible inputs with CMOS-speed performance
- Standard DIP-14 through-hole package simplifies prototyping and legacy board replacement
- Wide operating range and 50pF load capacitance tolerance for robust signal integrity
What is SN74BCT125AN used for?
The SN74BCT125AN is widely used in data bus buffering and signal isolation applications such as microprocessor address/data buses, memory interface circuits, and industrial control backplanes. Its 3-state outputs enable multiple devices to share a common bus without contention. The through-hole DIP-14 package makes it ideal for prototyping, repair of legacy equipment, and cost-sensitive embedded systems requiring reliable unidirectional bus driving.
What are the specifications of SN74BCT125AN?
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | BCT/FBT |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.064A |
| 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) | 49mA |
| Prop. Delay@Nom-Sup | 7.7ns |
| Propagation Delay (tpd) | 7.7ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| 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) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Where can I find the SN74BCT125AN datasheet?
SN74BCT125AN Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74BCT125AN?
Compatible alternatives and drop-in replacements for SN74BCT125AN:
Frequently Asked Questions
What is the output drive current of the SN74BCT125AN?
The SN74BCT125AN provides a maximum low-level output current (IOL) of 64mA (0.064A), making it suitable for driving heavy capacitive loads up to 50pF on data and address buses in industrial and embedded systems.
How does the 3-state output control work on the SN74BCT125AN?
Each of the four buffer channels on the SN74BCT125AN has an independent active-low enable (OE) pin. When the enable pin is driven high, the output enters a high-impedance (3-state) condition, allowing multiple devices to share the same bus line without signal contention.
What logic family does the SN74BCT125AN belong to and what are its compatibility characteristics?
The SN74BCT125AN belongs to the BCT (BiCMOS Technology) logic family, which combines TTL-compatible input thresholds with CMOS output structure. It is fully compatible with standard 74-series TTL devices and interfaces well with both 3.3V CMOS and 5V TTL logic levels.
What package does the SN74BCT125AN come in and are there SMD alternatives?
The SN74BCT125AN is packaged in a 14-pin DIP (Dual In-Line Package) through-hole format, which is suitable for breadboarding and legacy PCB designs. For surface-mount applications, Texas Instruments offers the SN74BCT125AD (SOIC-14) and SN74BCT125APWR (TSSOP-14) as pin-compatible SMD alternatives.
What are typical application areas for the SN74BCT125AN?
The SN74BCT125AN is commonly used in microprocessor bus buffering, memory interface circuits, industrial control backplanes, communication equipment, and embedded system designs where unidirectional signal buffering with bus-sharing capability is required.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 85+ | $3.5400 | $300.90 |
| 250+ | $3.1400 | $785.00 |
| 1000+ | $3.0125 | $3012.50 |
| 2500+ | $2.9900 | $7475.00 |
| 10000+ | $2.8250 | $28250.00 |
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