SN74AVC4T245PWR - 4-Bit Dual-Supply Bus Transceiver | TI
MPN: SN74AVC4T245PWR β 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 SN74AVC4T245PWR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN74AVC4T245PW
β Drop-Inπ Reference alternative (not in catalog)
SN74AVC4T245PWTG4
β Drop-Inπ Reference alternative (not in catalog)
SN74LVC4T245PWR
β Drop-Inπ Reference alternative (not in catalog)
74AVC4T245PW,112
β Drop-Inπ Reference alternative (not in catalog)
SN74AVCH4T245PWR
β Drop-Inπ Reference alternative (not in catalog)
SN74AVC4T245PWR Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 |
| Number of Elements | 2 |
| Bits per Element | 2 |
| Supply Voltage - VCCA | 0.8 V to 3.6 V |
| Supply Voltage - VCCB | 0.8 V to 3.6 V |
| Output Type | 3-State |
| Propagation Delay Time | 2.5 ns (typical) |
| Maximum Data Rate | 380 Mbps |
| Input/Output Voltage | 0.8 V to 3.6 V |
| Operating Temperature Range | -40Β°C to +85Β°C |
| Package Type | TSSOP-16 (PW) |
| Mounting Style | Surface Mount |
| RoHS | Compliant |
| Ioff Protection | Yes |
| ESD Protection | [DATA_NEEDED: ESD rating] |
SN74AVC4T245PWR Pin Configuration
| Pin 1 | 1DIR β Direction control for section 1, referenced to VCCA |
| Pin 2 | 1A1 β Data input/output for section 1, channel 1 |
| Pin 3 | 1A2 β Data input/output for section 1, channel 2 |
| Pin 4 | GND β Ground |
| Pin 5 | 2A1 β Data input/output for section 2, channel 1 |
| Pin 6 | 2A2 β Data input/output for section 2, channel 2 |
| Pin 7 | 2DIR β Direction control for section 2, referenced to VCCA |
| Pin 8 | GND β Ground |
| Pin 9 | 2OE β Output enable for section 2, active low, referenced to VCCA |
| Pin 10 | 2B2 β Data input/output for section 2, channel 2 |
| Pin 11 | 2B1 β Data input/output for section 2, channel 1 |
| Pin 12 | VCCB β Supply voltage for B-side |
| Pin 13 | 1B2 β Data input/output for section 1, channel 2 |
| Pin 14 | 1B1 β Data input/output for section 1, channel 1 |
| Pin 15 | 1OE β Output enable for section 1, active low, referenced to VCCA |
| Pin 16 | VCCA β Supply voltage for A-side and control pins |
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
SN74AVC4T245PWR is suitable for 6 applications: Mixed-Voltage System Interfacing, FPGA and ASIC Level Shifting, Portable Electronics, Industrial Control Systems, Automotive Electronics, IoT and Smart Home Devices.
Mixed-Voltage System Interfacing
The SN74AVC4T245PWR enables seamless communication between components operating at different supply voltages, such as 1.8V microcontrollers and 3.3V peripherals. Its dual-supply architecture with VCCA and VCCB ranging from 0.8V to 3.6V ensures reliable level translation. The device supports bidirectional data flow with direction control, making it ideal for SPI, UART, and GPIO interfaces. Its high-speed capability up to 380 Mbps minimizes signal delay, and the 3-state outputs allow bus sharing in multi-device systems.
Recommended
FPGA and ASIC Level Shifting
FPGAs and ASICs often operate at lower core voltages (e.g., 1.2V) while interfacing with 3.3V peripherals. The SN74AVC4T245PWR provides a compact 4-bit solution for translating between these domains. Its low propagation delay of 2.5ns preserves signal integrity in high-speed designs. The device's Ioff protection prevents backflow during power-down, which is critical in multi-rail systems. The TSSOP-16 package fits well in dense PCB layouts typical of FPGA boards.
Recommended
Portable Electronics
In battery-powered devices, multiple voltage domains are common, such as 1.8V logic and 3.3V sensors. The SN74AVC4T245PWR's wide supply range (0.8V to 3.6V) and low static power consumption make it suitable for power-sensitive applications. Its partial-power-down capability with Ioff ensures safe operation when subsystems are shut down to save energy. The small TSSOP-16 package is ideal for space-constrained designs like wearables and IoT devices.
Recommended
Industrial Control Systems
Industrial equipment often integrates sensors, controllers, and communication interfaces operating at different voltage levels. The SN74AVC4T245PWR provides reliable level translation for fieldbus interfaces, PLC I/O, and motor control signals. Its wide operating temperature range (-40Β°C to +85Β°C) ensures performance in harsh environments. The 3-state outputs allow multiple devices to share a bus, simplifying wiring and reducing component count. The device's robust ESD protection enhances reliability in industrial settings.
Recommended
Automotive Electronics
Automotive systems use multiple voltage domains, from 1.8V MCU cores to 3.3V or 5V sensors and actuators. The SN74AVC4T245PWR supports level shifting for CAN, LIN, and other automotive protocols. Its wide supply range and Ioff protection are essential for battery and ignition systems where power can be interrupted. The device's compact package and high-speed performance meet the demands of modern vehicle electronics, including infotainment and ADAS modules.
Recommended
IoT and Smart Home Devices
IoT devices often combine low-power microcontrollers with various sensors and wireless modules operating at different voltages. The SN74AVC4T245PWR enables efficient level translation between 1.8V logic and 3.3V peripherals, ensuring reliable communication. Its low quiescent current and partial-power-down support extend battery life in battery-operated sensors. The small package and high-speed capability make it ideal for compact smart home modules, such as smart switches and environmental monitors.
Recommended
Recommended Products Summary
Engineering reference data for SN74AVC4T245PWR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74AVC4T245PW | SN74AVC4T245RSVR | SN74LVC4T245PWR | 74AVC4T245PW,112 |
|---|---|---|---|---|---|
| Package | TSSOP-16 (PW) | TSSOP-16 (PW) | UQFN-16 (RSV) | TSSOP-16 (PW) | TSSOP-16 (PW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Supply Voltage Range | 0.8V to 3.6V | 0.8V to 3.6V | 0.8V to 3.6V | 1.65V to 5.5V | 0.8V to 3.6V |
| Maximum Data Rate | 380 Mbps | 380 Mbps | 380 Mbps | 420 Mbps | 380 Mbps |
| Propagation Delay | 2.5 ns | 2.5 ns | 2.5 ns | 3.5 ns | 2.5 ns |
| Ioff Protection | Yes | Yes | Yes | Yes | Yes |
| 5V Tolerant I/O | No | No | No | Yes | No |
| Operating Temperature Range | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C |
Key Differentiators
- Wide supply voltage range down to 0.8V (vs SN74LVC4T245PWR)
- Faster propagation delay (vs SN74LVC4T245PWR)
- Same-brand drop-in compatibility (vs 74AVC4T245PW,112)
Design Notes
Ensure both VCCA and VCCB are powered and within their specified ranges (0.8V to 3.6V). The control pins (DIR, OE) are referenced to VCCA, so their logic levels must be compatible with VCCA. Use 0.1uF decoupling capacitors close to each supply pin to minimize noise and ensure stable operation.
Place the SN74AVC4T245PWR close to the voltage domain boundary to minimize trace lengths and reduce signal integrity issues. Use controlled impedance traces for high-speed signals. Ensure adequate ground plane continuity beneath the device to reduce loop inductance and EMI.
Avoid bus contention by ensuring direction control (DIR) is set correctly before enabling outputs. The OE pins are active low; leave them high to disable outputs during power-up. Also, do not exceed the absolute maximum ratings for VCCA and VCCB, as this can damage the device.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 not applicable for this standard logic device.
