SN74AVC2T245RSWR - Dual-Bit Level Shifter | Texas Instruments
MPN: SN74AVC2T245RSWR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.72 | $7.20 |
| 100 | $0.58 | $58.00 |
| 500 | $0.49 | $245.00 |
| 1,000 | $0.42 | $420.00 |
Drop-in alternatives for SN74AVC2T245RSWR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SN74AXC2T245RSWR
✅ Drop-In📋 Reference alternative (not in catalog)
SN74AVC2T245RSWR Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Number of Bits per Channel | 1 |
| Supply Voltage (VCCA) | 1.2 V to 3.6 V |
| Supply Voltage (VCCB) | 1.2 V to 3.6 V |
| Output Type | 3-State |
| Propagation Delay Time | 2.4 ns (typical) |
| Output Current | 12 mA |
| Input/Output Voltage Range | 0 V to 3.6 V |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | UQFN (RSW) 10-pin, 1.8mm x 1.4mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| MSL Level | 1 |
| Quiescent Current | 20 uA (typical) |
| Direction Control | Independent per channel (DIR1, DIR2) |
SN74AVC2T245RSWR Pin Configuration
| Pin 1 | VCCA — Power supply for A-side |
| Pin 2 | 1A — Data I/O for channel 1, A-side |
| Pin 3 | 2A — Data I/O for channel 2, A-side |
| Pin 4 | GND — Ground |
| Pin 5 | DIR1 — Direction control for channel 1 |
| Pin 6 | DIR2 — Direction control for channel 2 |
| Pin 7 | 2B — Data I/O for channel 2, B-side |
| Pin 8 | 1B — Data I/O for channel 1, B-side |
| Pin 9 | VCCB — Power supply for B-side |
| Pin 10 | OE — Output enable (active low) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SN74AVC2T245RSWR is suitable for 6 applications: I2C Level Shifting, SPI Level Shifting, UART Level Shifting, GPIO Level Shifting, Industrial Control, Consumer Electronics.
I2C Level Shifting
The SN74AVC2T245RSWR is ideal for bidirectional I2C level shifting between different voltage domains, such as 1.8V and 3.3V. Its dual-supply architecture allows seamless translation of SDA and SCL lines. The device's high-speed performance (2.4 ns propagation delay) ensures minimal signal distortion, and its 3-state outputs prevent bus contention. For I2C applications, consider using the TXS0102 for automatic direction sensing, but the SN74AVC2T245RSWR provides explicit direction control for more predictable operation.
Recommended
SPI Level Shifting
The SN74AVC2T245RSWR can be used to level shift SPI signals between a 3.3V microcontroller and 1.8V peripherals. Its independent direction control per channel allows separate handling of MOSI, MISO, SCK, and CS lines. The device supports high-speed SPI up to 380 Mbps, making it suitable for high-throughput applications. The 3-state outputs enable multiple devices to share the bus without conflict. For SPI applications, the SN74AVC2T245RSWR provides a simple and reliable solution.
Recommended
UART Level Shifting
The SN74AVC2T245RSWR is well-suited for UART level shifting between different voltage domains, such as 3.3V and 1.8V. Its bidirectional capability allows both TX and RX lines to be translated with a single device. The device's low propagation delay (2.4 ns) ensures reliable communication at standard UART baud rates. The VCC isolation feature places outputs in high-impedance state when either supply is off, preventing backflow current. This makes it ideal for battery-powered devices where power sequencing is critical.
Recommended
GPIO Level Shifting
The SN74AVC2T245RSWR is perfect for level shifting GPIO signals between a 3.3V processor and 1.8V sensors or peripherals. Its two channels can handle two independent GPIO lines, and the direction control pins allow each channel to be configured for input or output. The device's wide supply range (1.2V to 3.6V) makes it flexible for various voltage combinations. The small UQFN package (1.8mm x 1.4mm) saves board space, making it ideal for compact designs.
Recommended
Industrial Control
In industrial control systems, the SN74AVC2T245RSWR is used to interface between different logic levels in PLCs, motor drives, and sensors. Its robust design operates over -40°C to +85°C, suitable for harsh environments. The device's 3-state outputs allow bus sharing in multi-drop configurations. The VCC isolation feature ensures safe power-down sequences. For industrial applications, the SN74AVC2T245RSWR provides reliable level translation with minimal power consumption.
Recommended
Consumer Electronics
The SN74AVC2T245RSWR is widely used in consumer electronics for level shifting between application processors and peripherals like cameras, displays, and memory cards. Its low power consumption (20 uA quiescent current) extends battery life in portable devices. The small package is ideal for smartphones, wearables, and tablets. The device supports high-speed data rates, making it suitable for multimedia interfaces. For consumer applications, the SN74AVC2T245RSWR offers a compact and efficient solution.
Recommended
Recommended Products Summary
Engineering reference data for SN74AVC2T245RSWR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74AXC2T245RSWR | SN74AVC4T245PWR | TXS0102DCUR |
|---|---|---|---|---|
| Package | UQFN (RSW) 10-pin | UQFN (RSW) 10-pin | TSSOP-16 | VSSOP-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 2 | 2 | 4 | 2 |
| Supply Voltage Range | 1.2V to 3.6V | 0.65V to 3.6V | 1.2V to 3.6V | 1.65V to 3.6V |
| Propagation Delay | 2.4 ns | 2.1 ns | 2.4 ns | 4.6 ns |
| Output Drive | 12 mA | 12 mA | 12 mA | 10 mA |
| Direction Control | Independent per channel | Independent per channel | Independent per channel | Auto-direction sensing |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
Key Differentiators
- Wider voltage range in drop-in replacement (vs SN74AVC2T245RSWR)
- Smaller package than 4-channel alternatives (vs SN74AVC4T245PWR)
- Independent direction control per channel (vs TXS0102DCUR)
Design Notes
Ensure both VCCA and VCCB are powered within their specified ranges (1.2V to 3.6V). The device has a VCC isolation feature that places outputs in high-impedance state if either supply is at GND, preventing backflow current. Use 0.1uF decoupling capacitors close to each supply pin to minimize noise.
The UQFN package has a 0.5mm pitch, requiring careful PCB layout. Use micro-vias or via-in-pad for thermal and electrical connectivity. Keep traces short to minimize parasitic inductance. Follow the recommended land pattern in the datasheet for optimal solder joint reliability.
Do not leave direction control pins (DIR1, DIR2) floating; tie them to VCCA or GND as needed. The OE pin is active low; connect to GND for normal operation. Avoid bus contention by ensuring only one driver is active at a time. For unused channels, tie inputs to GND or VCC to prevent floating inputs.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified.
