SN74AVC4T245QWRGYRQ1 - Automotive 4-Bit Level Shifter | TI
MPN: SN74AVC4T245QWRGYRQ1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.25 | $1.25 |
| 10 | $1.12 | $11.20 |
| 100 | $0.95 | $95.00 |
| 500 | $0.82 | $410.00 |
| 1,000 | $0.74 | $740.00 |
Drop-in alternatives for SN74AVC4T245QWRGYRQ1 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:
SN74AVC4T245RGYR
β Drop-Inπ Reference alternative (not in catalog)
SN74AVC4T245QRGYRQ1
β Drop-Inπ Reference alternative (not in catalog)
SN74AVC4T245QWRGYRQ1 Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 |
| Number of Circuits | 2 |
| Voltage - VCCA | 1.2 V to 3.6 V |
| Voltage - VCCB | 1.2 V to 3.6 V |
| Output Type | 3-State |
| Data Rate | 380 Mbps |
| Propagation Delay | 2.1 ns (typical) |
| Input/Output Voltage | 1.2 V to 3.6 V |
| Operating Temperature | -40Β°C to +125Β°C |
| Package | 16-VQFN (4x3.5) |
| Mounting Type | Surface Mount |
| Automotive Grade | AEC-Q100 |
| RoHS Status | Compliant |
| Supply Current | [DATA_NEEDED: Supply current] |
| ESD Protection | [DATA_NEEDED: ESD rating] |
SN74AVC4T245QWRGYRQ1 Pin Configuration
| Pin 1 | 1A1 β Data input/output for channel 1, port A |
| Pin 2 | 1A2 β Data input/output for channel 2, port A |
| Pin 3 | GND β Ground |
| Pin 4 | 1B1 β Data input/output for channel 1, port B |
| Pin 5 | 1B2 β Data input/output for channel 2, port B |
| Pin 6 | VCCB β Supply voltage for port B |
| Pin 7 | 2B1 β Data input/output for channel 1, port B (second section) |
| Pin 8 | 2B2 β Data input/output for channel 2, port B (second section) |
| Pin 9 | GND β Ground |
| Pin 10 | 2A1 β Data input/output for channel 1, port A (second section) |
| Pin 11 | 2A2 β Data input/output for channel 2, port A (second section) |
| Pin 12 | 2OE β Output enable for second section (active low) |
| Pin 13 | 2DIR β Direction control for second section |
| Pin 14 | 1DIR β Direction control for first section |
| Pin 15 | 1OE β Output enable for first section (active low) |
| Pin 16 | VCCA β Supply voltage for port A |
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
SN74AVC4T245QWRGYRQ1 is suitable for 6 applications: Automotive Body Control Module, Infotainment System, ADAS Sensor Interface, Industrial Automation, Portable Electronics, Test and Measurement Equipment.
Automotive Body Control Module
The SN74AVC4T245QWRGYRQ1 is ideal for automotive body control modules (BCMs) where it interfaces between a 1.8 V or 2.5 V microcontroller and 3.3 V or 5 V sensors, actuators, and communication buses. Its AEC-Q100 qualification ensures reliable operation over the -40Β°C to +125Β°C temperature range, and its 380 Mbps data rate supports high-speed SPI and UART interfaces. The dual-supply design allows seamless level translation between different voltage domains, while the 3-state outputs enable bus isolation during power-down, preventing backflow current and protecting the MCU. In BCMs, it is used for door lock control, window lift, and lighting systems, where robust level shifting is critical for signal integrity.
Recommended
Infotainment System
In infotainment systems, the SN74AVC4T245QWRGYRQ1 translates voltage levels between the application processor (1.8 V) and peripheral devices such as displays, touch controllers, and audio codecs (3.3 V). Its high data rate of 380 Mbps supports MIPI, SPI, and I2C interfaces, ensuring fast and reliable data transfer. The low propagation delay of 2.1 ns minimizes signal skew, which is essential for high-speed serial communication. The device's 3-state outputs allow multiple peripherals to share a common bus without contention, and the Ioff circuitry protects the system during partial power-down, a common scenario in automotive infotainment with multiple power domains. This makes it a robust choice for modern connected car systems.
Recommended
ADAS Sensor Interface
Advanced driver-assistance systems (ADAS) rely on the SN74AVC4T245QWRGYRQ1 to interface between radar, lidar, and camera sensors operating at 1.8 V and the central processing unit at 3.3 V. The device's automotive qualification and wide temperature range ensure reliable operation in harsh environments. Its 380 Mbps data rate accommodates high-bandwidth sensor data streams, while the dual-supply design allows independent voltage scaling for different sensor domains. The 3-state outputs enable efficient bus sharing among multiple sensors, and the Ioff circuitry prevents backflow current during system shutdown, protecting sensitive sensor electronics. This level shifter is critical for maintaining signal integrity in ADAS applications where data accuracy is paramount.
Recommended
Industrial Automation
In industrial automation, the SN74AVC4T245QWRGYRQ1 is used to interface between 1.8 V or 2.5 V microcontrollers and 3.3 V or 5 V field devices, such as sensors, actuators, and PLCs. Its wide supply voltage range and high-speed capability make it suitable for various industrial protocols, including SPI, I2C, and UART. The device's robust ESD protection and wide temperature range ensure reliable operation in factory environments. The 3-state outputs allow multiple devices to share a common bus, and the Ioff circuitry provides protection during power-down, which is common in modular industrial systems. This level shifter simplifies PCB design by eliminating the need for discrete level-shifting circuits, reducing component count and board space.
Recommended
Portable Electronics
The SN74AVC4T245QWRGYRQ1 is suitable for portable electronics, such as smartphones, tablets, and wearables, where it translates voltage levels between low-power processors (1.2 V) and peripherals (1.8 V or 3.3 V). Its small 16-VQFN package saves board space, and its low power consumption extends battery life. The device supports high-speed interfaces like SPI and I2C, enabling fast data transfer between the processor and memory, sensors, or displays. The 3-state outputs allow power-efficient bus management, and the Ioff circuitry prevents battery drain during shutdown. This level shifter is ideal for space-constrained designs where efficiency and reliability are key.
Recommended
Test and Measurement Equipment
In test and measurement equipment, the SN74AVC4T245QWRGYRQ1 is used to interface between different logic levels in data acquisition systems, oscilloscopes, and signal generators. Its high data rate and low propagation delay ensure accurate signal transmission, while the dual-supply design allows flexible voltage scaling for various test setups. The 3-state outputs enable multiple instruments to share a common bus, and the Ioff circuitry protects the device during power-down, which is important in modular test systems. The device's wide temperature range and robust ESD protection make it suitable for demanding laboratory environments. This level shifter simplifies the design of multi-voltage test systems, reducing complexity and improving reliability.
Recommended
Recommended Products Summary
Engineering reference data for SN74AVC4T245QWRGYRQ1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN74AVC4T245RGYR | SN74AVC4T245PWR | SN74AVC4T245BQBR | 74AVC4T245BQ |
|---|---|---|---|---|---|
| Package | 16-VQFN (4x3.5) | 16-VQFN (4x3.5) - same | 16-TSSOP | 16-WQFN (2.5x3.5) | 16-DHVQFN |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Nexperia |
| Automotive Grade | Yes (AEC-Q100) | No | No | No | No |
| Data Rate | 380 Mbps | 380 Mbps | 380 Mbps | 380 Mbps | 380 Mbps |
| Supply Voltage Range | 1.2 V to 3.6 V | 1.2 V to 3.6 V | 1.2 V to 3.6 V | 1.2 V to 3.6 V | 1.2 V to 3.6 V |
| Propagation Delay | 2.1 ns (typical) | 2.1 ns (typical) | 2.1 ns (typical) | 2.1 ns (typical) | [DATA_NEEDED] |
| Operating Temperature | -40Β°C to +125Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +125Β°C |
| Output Type | 3-State | 3-State | 3-State | 3-State | 3-State |
Key Differentiators
- Automotive AEC-Q100 qualification (vs SN74AVC4T245RGYR)
- Compact VQFN package (vs SN74AVC4T245PWR)
- High-speed 380 Mbps data rate (vs 74AVC4T245BQ)
Design Notes
Ensure VCCA and VCCB are properly decoupled with 0.1 Β΅F ceramic capacitors placed as close as possible to the respective pins. Additionally, a 10 Β΅F bulk capacitor on each supply rail is recommended to handle transient currents during switching. The control pins (DIR, OE) are referenced to VCCA, so they must be driven by the VCCA domain to avoid undefined states.
For high-speed operation up to 380 Mbps, keep trace lengths short and matched between the A and B ports to minimize skew. Use a solid ground plane beneath the device to reduce inductance and improve signal integrity. The exposed thermal pad on the VQFN package should be soldered to the PCB ground plane for optimal thermal performance.
Do not apply voltage to the I/O pins when the corresponding supply (VCCA or VCCB) is off, as this can cause latch-up or damage. The Ioff circuitry protects against backflow, but it is not a substitute for proper power sequencing. Ensure that the direction control (DIR) and output enable (OE) signals are stable before data transmission to prevent bus contention.
Compliance Information
AEC-Q100 qualified for automotive applications. RoHS and REACH compliant per TI product page.
