Overview
The SN74AVC4T774RSVR from Texas Instruments is a 4-bit dual-supply bus transceiver designed for universal low-voltage bi-directional translation between various voltage nodes. This device operates with two separate configurable power-supply rails, allowing each port to function over a wide voltage range from 1.1V to 3.6V. It is optimized for asynchronous communication between data buses and supports partial power-down mode operation. The SN74AVC4T774RSVR is particularly useful in applications requiring voltage-level shifting and tri-state outputs, making it versatile for a range of electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCCA, VCCB) | 1.1 to 3.6 | V |
| Input Voltage Range | -0.5 to 4.6 | V |
| Operating Temperature Range | -40 to 85 | °C |
| ESD Protection | ±8000V (Human-body model), 250V (Machine model), ±1500V (Charged-device model) | V |
| Data Rates | 380Mbps (1.8V to 3.3V), 200Mbps (<1.8V to 3.3V), 200Mbps (translate to 2.5V or 1.8V), 150Mbps (translate to 1.5V), 100Mbps (translate to 1.2V) | Mbps |
| Package Type | UQFN (RSV), 16 pins | |
| Package Size | 2.6mm × 1.8mm | mm |
Key Features
- Each channel has an independent DIR control input.
- Control inputs VIH/VIL levels are referenced to VCCA voltage.
- Fully configurable dual-rail design allows each port to operate over the full 1.1V to 3.6V power-supply range.
- I/Os are 4.6V tolerant.
- Ioff supports partial power-down-mode operation.
- High data rates: 380Mbps (1.8V to 3.3V translation), 200Mbps (<1.8V to 3.3V translation), etc.
- Latch-up performance exceeds 100 mA per JESD 78, class II.
- ESD protection exceeds ±8000V Human-body model, 250V Machine model, and ±1500V Charged-device model.
Applications
- Personal electronic devices.
- Industrial applications.
- Enterprise systems.
- Telecommunications equipment.
Q & A
- What is the voltage range for the supply voltages VCCA and VCCB?
The supply voltages VCCA and VCCB can range from 1.1V to 3.6V.
- What are the typical data rates for the SN74AVC4T774RSVR?
The typical data rates include 380Mbps (1.8V to 3.3V translation), 200Mbps (<1.8V to 3.3V translation), and others depending on the voltage translation.
- What is the operating temperature range for this device?
The operating temperature range is from -40°C to 85°C.
- What kind of ESD protection does the SN74AVC4T774RSVR offer?
The device offers ESD protection exceeding ±8000V Human-body model, 250V Machine model, and ±1500V Charged-device model.
- How many pins does the UQFN (RSV) package have?
The UQFN (RSV) package has 16 pins.
- What is the package size of the UQFN (RSV) package?
The package size is 2.6mm × 1.8mm.
- Does the SN74AVC4T774RSVR support partial power-down mode operation?
Yes, it supports partial power-down mode operation using Ioff circuitry.
- What is the significance of the DIR control input in the SN74AVC4T774RSVR?
Each channel has an independent DIR control input that determines the direction of data transmission between the A and B ports.
- Why is it important to keep the control inputs from floating?
Keeping the control inputs from floating is crucial to prevent excess ICC and ICCZ currents and to minimize leakage current.
- In what types of applications is the SN74AVC4T774RSVR commonly used?
The device is commonly used in personal electronic devices, industrial applications, enterprise systems, and telecommunications equipment.
