Overview
The SN74AVC4T774PW is a 4-bit noninverting bus transceiver produced by Texas Instruments. This device is designed for asynchronous communication between data buses and features configurable voltage-level shifting and tri-state outputs. It operates with two separate power-supply rails, VCCA and VCCB, each of which can accept any supply voltage from 1.1V to 3.6V. This allows for universal low-voltage bi-directional translation between various voltage nodes such as 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The device is optimized for operation with VCCA/VCCB set at 1.4V to 3.6V and is operational down to 1.2V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (PW) | - |
| Pins | 16 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage (VCCA, VCCB) | 1.1 to 3.6 | V |
| Input Voltage Range | -0.5 to 4.6 | V |
| High-Level Input Voltage (VIH) | VCCI × 0.7 (min) | V |
| Low-Level Input Voltage (VIL) | VCCI × 0.3 (max) | V |
| Data Rates | 380 Mbps (1.8V to 3.3V), 200 Mbps (<1.8V to 3.3V), 200 Mbps (to 2.5V or 1.8V), 150 Mbps (to 1.5V), 100 Mbps (to 1.2V) | Mbps |
| ESD Protection | ±8000V Human-body model, 250V Machine model, ±1500V Charged-device model | V |
| Latch-up Performance | Exceeds 100 mA (JESD 78, class II) | mA |
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: 380 Mbps (1.8V to 3.3V), 200 Mbps (<1.8V to 3.3V), etc.
- Latch-up performance exceeds 100 mA (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 SN74AVC4T774PW used for?
The SN74AVC4T774PW is used for asynchronous communication between data buses and provides configurable voltage-level shifting and tri-state outputs.
- What are the operating voltage ranges for VCCA and VCCB?
VCCA and VCCB can accept any supply voltage from 1.1V to 3.6V.
- What are the typical data rates supported by the SN74AVC4T774PW?
The device supports data rates of 380 Mbps (1.8V to 3.3V), 200 Mbps (<1.8V to 3.3V), 200 Mbps (to 2.5V or 1.8V), 150 Mbps (to 1.5V), and 100 Mbps (to 1.2V).
- What is the ESD protection level of the SN74AVC4T774PW?
The device has ESD protection exceeding ±8000V Human-body model, 250V Machine model, and ±1500V Charged-device model.
- How does the device handle partial power-down mode?
The device supports partial power-down mode operation through its Ioff circuitry, which disables the outputs to prevent damaging current backflow.
- What are the key applications of the SN74AVC4T774PW?
The device is used in personal electronic devices, industrial applications, enterprise systems, and telecommunications equipment.
- What is the package type and pin count of the SN74AVC4T774PW?
The device is available in a 16-pin TSSOP (PW) package.
- What is the operating temperature range of the SN74AVC4T774PW?
The operating temperature range is from -40°C to 85°C.
- How are the control inputs referenced in the SN74AVC4T774PW?
The control inputs VIH/VIL levels are referenced to VCCA voltage.
- What is the latch-up performance of the SN74AVC4T774PW?
The latch-up performance exceeds 100 mA (JESD 78, class II).
