SN74AVC126PW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments SN74AVC126PW is a quad single-bit bus buffer/line driver from the AVC logic family with active-high output enables, 1.65 V to 3.6 V supply, and 12 mA output sink current. Available in a 14-pin TSSOP package for high-speed level shifting and bus buffering.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74AVC126PW 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
What are the key features of SN74AVC126PW?
- Quad unidirectional bus buffer with individual active-high output enables for independent channel control
- AVC logic family supporting 1.65 V to 3.6 V supply operation with sub-nanosecond propagation delays
- 12 mA output sink current at 15 pF load capacitance enabling reliable drive of high-capacitance bus lines
- 14-pin TSSOP package minimizing board space in dense multi-rail logic interface designs
What is SN74AVC126PW used for?
The SN74AVC126PW is used in mixed-voltage logic interfaces where signals from a 3.3 V processor must be buffered and driven onto a 1.8 V or 2.5 V bus without level inversion. Its four independent enable-controlled channels make it suitable for I/O expansion, multiplexed bus arbitration, and signal isolation in FPGAs, microcontroller development boards, and communication interface cards.
What are the specifications of SN74AVC126PW?
| YTEOL | 0 |
| Control Type | ENABLE HIGH |
| Count Direction | UNIDIRECTIONAL |
| Family | AVC |
| JESD-30 Code | R-PDSO-G14 |
| Load Capacitance (CL) | 15pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.012A |
| 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 | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.04mA |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.4V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74AVC126PW datasheet?
SN74AVC126PW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74AVC126PW?
Compatible alternatives and drop-in replacements for SN74AVC126PW:
Frequently Asked Questions
What supply voltage range does the SN74AVC126PW support, and how does it fit mixed-voltage designs?
The SN74AVC126PW operates from 1.65 V to 3.6 V, making it compatible with 1.8 V, 2.5 V, and 3.3 V logic families. In a mixed-voltage system where a 3.3 V microcontroller communicates with a 1.8 V FPGA, the AVC126 can buffer the 3.3 V signals onto the 1.8 V bus without discrete level-shift resistors, simplifying the interface and reducing propagation delay.
How do the independent active-high output enables on SN74AVC126PW benefit bus multiplexing designs?
Each of the 4 channels in the SN74AVC126PW has its own active-high OE pin, allowing a designer to selectively enable or tristate individual data lines. This supports bus multiplexing schemes where different sources time-share a common bus, with each source's driver disabled when not transmitting to prevent bus contention — a key requirement in SPI or parallel data bus architectures with 4 or more peripherals.
For a high-speed serial interface, what is the typical propagation delay of SN74AVC126PW at 3.3 V?
The AVC logic family is designed for sub-nanosecond propagation delays at 3.3 V, with typical tpd values in the range of 0.7 ns to 1.5 ns at 3.3 V supply and 15 pF load. This ultra-low latency makes the SN74AVC126PW suitable for buffering high-speed signals in PCIe, DDR memory interfaces, and LVTTL bus applications operating at 200 MHz and above.
How does SN74AVC126PW compare to SN74LVC126A for a 3.3 V to 1.8 V interface?
Both devices offer quad bus buffering with active-high enables, but the AVC family (1.65 V to 3.6 V) is optimized for lower supply voltages and achieves faster propagation delays than the LVC family (1.65 V to 5.5 V). For a dedicated 3.3 V to 1.8 V interface requiring minimum latency, the SN74AVC126PW is the preferred choice; the SN74LVC126A is better when 5 V tolerance or a wider supply range is needed.
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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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