Overview
The SN74AVC20T245DGGR is a 20-bit dual-supply bus transceiver produced by Texas Instruments. This noninverting bus transceiver is designed to operate with two separate configurable power-supply rails, allowing for universal low-voltage bidirectional translation between various voltage nodes (1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V). It is optimized for asynchronous communication between data buses and features configurable voltage translation and 3-state outputs. The device is packaged in a 56-pin TSSOP (Thin Shrink Small Outline Package) and is suitable for a wide range of applications requiring voltage level translation and data bus communication.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 56-TSSOP (0.240", 6.10mm Width) |
| Pins | 56 |
| Operating Temperature Range (°C) | -40 to 85 |
| Voltage - VCCA | 1.2 V to 3.6 V |
| Voltage - VCCB | 1.2 V to 3.6 V |
| Data Rate | Up to 380 Mbps (depending on voltage translation) |
| Output Type | Tri-State, Non-Inverted |
| ESD Protection | 8000-V Human-Body Model, 200-V Machine Model, 1000-V Charged-Device Model |
| Latch-Up Performance | Exceeds 100 mA per JESD 78, Class II |
| Mounting Type | Surface Mount |
Key Features
- Control Inputs VCCA Levels are Referenced to VCCA Voltage
- VCC Isolation Feature - If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State
- Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
- Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
- Ioff Supports Partial-Power-Down Mode Operation
- I/Os Are 4.6-V Tolerant
- High Data Rates: Up to 380 Mbps Depending on Voltage Translation
- ESD Protection Exceeds JESD 22 Standards
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
Applications
The SN74AVC20T245DGGR is suitable for a variety of applications that require voltage level translation and data bus communication. These include:
- Embedded Systems: For communication between different voltage domains within an embedded system.
- Industrial Control Systems: To ensure reliable data transmission across different voltage levels.
- Consumer Electronics: In devices that require interfacing between different voltage levels, such as in smartphones, tablets, and other portable electronics.
- Automotive Systems: For reliable data communication in automotive systems where different voltage levels are used.
- Medical Devices: To ensure accurate and reliable data transmission in medical devices that operate at different voltage levels.
Q & A
- What is the SN74AVC20T245DGGR used for?
The SN74AVC20T245DGGR is a 20-bit dual-supply bus transceiver used for bidirectional voltage level translation and data bus communication between different voltage domains.
- What are the operating voltage ranges for VCCA and VCCB?
Both VCCA and VCCB can operate over a range of 1.2 V to 3.6 V.
- What is the maximum data rate supported by the SN74AVC20T245DGGR?
The maximum data rate supported is up to 380 Mbps, depending on the voltage translation.
- What type of output does the SN74AVC20T245DGGR have?
The output type is tri-state, non-inverted.
- Does the SN74AVC20T245DGGR support partial-power-down mode?
- What is the ESD protection level of the SN74AVC20T245DGGR?
The ESD protection exceeds JESD 22 standards, with 8000-V Human-Body Model, 200-V Machine Model, and 1000-V Charged-Device Model.
- What is the latch-up performance of the SN74AVC20T245DGGR?
The latch-up performance exceeds 100 mA per JESD 78, Class II.
- What is the package type and pin count of the SN74AVC20T245DGGR?
The package type is 56-TSSOP (Thin Shrink Small Outline Package) with 56 pins.
- What is the operating temperature range of the SN74AVC20T245DGGR?
The operating temperature range is -40°C to 85°C.
- Is the SN74AVC20T245DGGR RoHS compliant?
