SN74AXC4T774-Q1
- AEC-Q100 qualified for automotive applications
- Fully configurable dual-rail design allows each port to operate with a power supply range from 0.65V to 3.6V
- Operating temperature from –40°C to +125°C
- Independent direction control pins to allow configurable up and down translation
- Glitch-free power supply sequencing
- Up to 310Mbps support when translating from 1.8V to 3.3V
- VCC Isolation Feature:
- If either VCC input is below 100mV, all I/Os outputs are disabled and become high-impedance
- Ioff supports partial-power-down mode operation
- Compatible with AVC family level shifters
- Latch-up performance exceeds 100mA per JESD 78, Class II
- ESD protection exceeds JEDEC JS-001
- 8000-V Human-Body Model
- 1000-V Charged-Device Model
The SN74AXC4T774-Q1 is a four-bit non-inverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65V to 3.6V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65V to 3.6V. Additionally the SN74AXC4T774-Q1 is compatible with a single-supply system.
The SN74AXC4T774-Q1 device is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control inputs (DIRx). The output-enable input (OE) is used to disable the outputs so the buses are effectively isolated. The SN74AXC4T774-Q1 device is designed so the control pins (DIRx and OE) are referenced to VCCA.
To put the level shifter I/Os in the high-impedance state during power up or power down, tie the OE pin to VCCA through a pullup resistor.
This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry is designed so that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.
The VCC isolation feature is designed so that if either VCCA or VCCB is less than 100mV, both I/O ports are set to the high-impedance state by disabling their outputs.
Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | SN74AXC4T774-Q1 Automotive 4-Bit Dual-Supply Bus Transceiver with Independent Direction, Configurable-Voltage Translation, and Tri-State Outputs datasheet (Rev. E) | PDF | HTML | 2024/1/29 | ||
| 應用說明 | Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators | PDF | HTML | 2024/10/2 | |||
| 應用說明 | Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators | PDF | HTML | 2024/7/12 | |||
| 應用說明 | Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) | PDF | HTML | 2024/7/3 | |||
| 功能安全資訊 | SN74AXC4T774-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2024/3/27 | |||
| 應用說明 | Translate Voltages for SPI (Rev. A) | PDF | HTML | 2021/8/4 |
設計與開發
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14-24-NL-LOGIC-EVM — 適用於 14 針腳至 24 針腳無引線封裝的邏輯產品通用評估模組
14-24-NL-LOGIC-EVM 是一款靈活的評估模組 (EVM)，設計用於支援任何具有 14 針腳至 24 針腳 BQA、BQB、RGY、RSV、RJW 或 RHL 封裝的邏輯或轉換裝置。
SN74AXC4T774EVM — 方向控制雙向轉換裝置，可支援 SPI、JTAG、UART 介面的 EVM
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| UQFN (RSV) | 16 | Ultra Librarian |
| WQFN (BQB) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |