SN74LXC1T45
- Fully configurable dual-rail design allows each port to operate from 1.1 V to 5.5 V
- Robust, glitch-free power supply sequencing
- Up to 420-Mbps support for 3.3 V to 5.0 V
- Schmitt-trigger inputs allow for slow or noisy inputs
- I/O’s with integrated dynamic pull-down resistors help reduce external component count
- Control inputs with integrated static pull-down resistors allow for floating control inputs
- High drive strength (up to 32 mA at 5 V)
- Low power consumption
- 3-µA maximum (25°C)
- 6-µA maximum (–40°C to 125°C)
- VCC isolation and Vcc disconnect
(Ioff-float) feature
- If either VCC supply is < 100 mV or disconnected, all I/O’s get pulled-down and then become high-impedance
- Ioff supports partial-power-down mode operation
- Compatible with LVC family level shifters
- Control logic (DIR and OE) are referenced to VCCA
- Operating temperature from –40°C to +125°C
- Latch-up performance exceeds 100 mA per JESD 78, class II
- ESD protection exceeds JESD 22
- 4000-V human-body model
- 1000-V charged-device model
The SN74LXC1T45 is a 1-bit, dual-supply noninverting bidirectional voltage level translation device. The I/O pin A and control pin (DIR) are referenced to VCCA logic levels, and the I/O pin B are referenced to VCCB logic levels. The A pin is able to accept I/O voltages ranging from 1.1 V to 5.5 V, while the B pin can accept I/O voltages from 1.1 V to 5.5 V. A high on DIR allows data transmission from A to B and a low on DIR allows data transmission from B to A. See Device Functional Modes for a summary of the operation of the control logic.
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 | SN74LXC1T45 Single-Bit Dual-Supply Bus Transceiver With Configurable Level Shifting datasheet (Rev. A) | PDF | HTML | 2021/12/10 | ||
| 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 | |||
| Application brief | Enabling Power-Efficient FPGA Designs With Level Translation | PDF | HTML | 2024/4/30 | |||
| Product overview | Enabling System on Module Industrial PC Connectivity With Level Translation | PDF | HTML | 2023/4/3 | |||
| Application brief | Enabling Next Generation Processors, FPGA, and ASSP with Voltage Level Translat | PDF | HTML | 2023/1/17 | |||
| Application brief | Enabling LED and LCD Indicators in Modern System Designs | PDF | HTML | 2022/8/1 |
設計與開發
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AVCLVCDIRCNTRL-EVM — 適用於方向控制雙向轉換裝置、支援 AVC 和 LVC 的通用 EVM
通用 EVM 的設計可支援一、二、四、八通道 LVC 及 AVC 方向控制的轉換裝置。此外也支援相同通道數量的匯流排保留與汽車 -Q1 裝置。AVC 是低電壓轉換裝置，具較低驅動強度 12mA。LVC 是較高的電壓轉換裝置，範圍從 1.65 到 5.5V 且具較高驅動強度 32mA。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| USON (DRY) | 6 | Ultra Librarian |
| SOT-SC70 (DCK) | 6 | Ultra Librarian |
| SOT-23 (DBV) | 6 | Ultra Librarian |
| X2SON (DTQ) | 6 | Ultra Librarian |