Specifications
| Type | Description |
|---|---|
| Part Number | SN74AXC2T245 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | RSW UQFN, 10-pin, 1.8 mm x 1.4 mm |
| Supply Voltage A Operating Range | 0.65 to 3.6 V |
| Supply Voltage B Operating Range | 0.65 to 3.6 V |
| Operating Free-Air Temperature | -40 to 125 °C |
| Maximum Data Rate | Up to 380 Mbps |
| Direction Control Inputs | DIR1 and DIR2 |
| Output Enable Function | OE high places all outputs in tri-state mode |
| VCC Isolation Threshold | 100 mV |
| Absolute Maximum Supply Voltage A | -0.5 to 4.2 V |
| Absolute Maximum Supply Voltage B | -0.5 to 4.2 V |
| Absolute Maximum Input Voltage | -0.5 to 4.2 V |
| Absolute Maximum High-Impedance Output Voltage | -0.5 to 4.2 V |
| Absolute Maximum Active Output Voltage, A Port | -0.5 to VCCA + 0.2 V |
| Absolute Maximum Active Output Voltage, B Port | -0.5 to VCCB + 0.2 V |
| Input Clamp Current | -50 mA |
| Output Clamp Current | -50 mA |
| Continuous Output Current | -50 to 50 mA |
| Continuous Current Through VCC or GND | -100 to 100 mA |
| Junction Temperature | 150 °C |
| Storage Temperature | -65 to 150 °C |
| ESD Human Body Model | ±8000 V |
| ESD Charged Device Model | ±1000 V |
| Junction-to-Ambient Thermal Resistance | 209.0 °C/W |
| Junction-to-Case Top Thermal Resistance | 129.1 °C/W |
| Junction-to-Board Thermal Resistance | 122.9 °C/W |
| Input Voltage | 0 to 3.6 V |
| Output Voltage Active State | 0 to VCCO V |
| Output Voltage Tri-State | 0 to 3.6 V |
| Input Transition Rate | 10 ns/V |
| High-Level Input Voltage | 0.70 x VCCI |
| High-Level Input Voltage | 0.65 x VCCI |
| High-Level Input Voltage | 1.6 V |
| High-Level Input Voltage | 2 V |
| Low-Level Input Voltage | 0.30 x VCCI |
| Low-Level Input Voltage | 0.35 x VCCI |
| Low-Level Input Voltage | 0.7 V |
| Low-Level Input Voltage | 0.8 V |
| Control Input Leakage Current | -0.5 to 0.5 µA, -1 to 1 µA |
| Data Input Leakage Current | -4 to 4 µA, -8 to 8 µA |
| Partial Power-Down Current | -4 to 4 µA, -8 to 8 µA |
| Tri-State Output Current | -4 to 4 µA, -8 to 8 µA |
| Combined Supply Current | 16 µA typ, 23 µA max |
| Control Input Capacitance | 3.0 pF typ |
| Data I/O Capacitance | 5.1 pF typ |
| Propagation Delay, A to B | 0.5 to 106 ns |
| Propagation Delay, B to A | 0.5 to 76 ns |
| Disable Time | 0.5 to 132 ns |
| Enable Time | 0.5 to 128 ns |
| Datasheet Status | request_only |
Product Overview
SN74AXC2T245 is a Texas Instruments 2-bit dual-supply bus transceiver for Signal_Chain interfaces using separate VCCA and VCCB supply domains. Both supply rails have recommended operating ranges of 0.65 to 3.6 V, and the recommended operating free-air temperature range is -40 to 125 °C.
Each channel has its own direction-control input, DIR1 and DIR2, referenced to VCCA. The OE input is also referenced to VCCA; driving OE high places all outputs in tri-state mode. If either VCC input falls below 100 mV, all I/O outputs are disabled and placed in a high-impedance state.
The device is supplied in an RSW UQFN, 10-pin, 1.8 mm x 1.4 mm package. Electrical limits include 0 to 3.6 V recommended input voltage, 0 to VCCO active-state output voltage, 0 to 3.6 V tri-state output voltage, and a 10 ns/V maximum input transition rate. It supports up to 380 Mbps when translating from 1.8 V to 3.3 V.
Key Features
- 2-bit dual-supply bus transceiver
- VCCA and VCCB operate from 0.65 to 3.6 V
- Supports up to 380 Mbps from 1.8 V to 3.3 V
- DIR1 and DIR2 provide per-channel direction control
- OE high places all outputs in tri-state mode
- 100 mV VCC isolation disables I/O outputs
- -40 to 125 °C operating free-air temperature
- 16 µA typical combined supply current
- RSW UQFN 10-pin, 1.8 mm x 1.4 mm package
Typical Applications
- Dual-supply logic translation
- Signal-chain interface level shifting
- Two-bit bus transceiver interfaces
- Tri-state controlled signal routing
- Mixed-voltage digital I/O links
- Power-down isolated I/O connections
Procurement Notes
When requesting a quote for SN74AXC2T245, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What supply voltage range does SN74AXC2T245 support?
SN74AXC2T245 supports recommended operating ranges of 0.65 to 3.6 V on both VCCA and VCCB. These dual supplies allow the 2-bit bus transceiver to operate between separate voltage domains within the stated datasheet conditions.
How are output states controlled on this device?
The device uses DIR1 and DIR2 as per-channel direction-control inputs referenced to VCCA. The OE input is also referenced to VCCA, and driving OE high places all outputs in tri-state mode.
What happens when a supply falls below 100 mV?
The VCC isolation function disables all I/O outputs and places them in a high-impedance state if either VCC input is below 100 mV. This condition applies to the supply-monitoring behavior described in the extracted datasheet facts.
What package is used for SN74AXC2T245?
SN74AXC2T245 is listed in an RSW UQFN, 10-pin package measuring 1.8 mm x 1.4 mm. The extracted thermal data for this package includes 209.0 °C/W junction-to-ambient thermal resistance.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 7, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.