SN74ALVC164245
- Member of the Texas Instruments Widebus™ Family
- Maximum tpd of 5.8 ns at 3.3 V
- ±24-mA Output Drive at 3.3 V
- Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
- Latch-Up Performance Exceeds 250 mA Per JESD 17
- APPLICATIONS
- Electronic Points of Sale
- Printers and Other Peripherals
- Motor Drives
- Wireless and Telecom Infrastructures
- Wearable Health and Fitness Devices
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This 16-bit (dual-octal) noninverting bus transceiver contains two separate supply rails. B port has VCCB, which is set to operate at 3.3 V and 5 V. A port has VCCA, which is set to operate at 2.5 V and 3.3 V. This allows for translation from a 2.5-V to a 3.3-V environment, and vice versa, or from a 3.3-V to a 5-V environment, and vice versa.
The SN74ALVC164245 is designed for asynchronous communication between data buses. The control circuitry (1DIR, 2DIR, 1OE, and 2OE) is powered by VCCA.
To ensure the high-impedance state during power up or power down, the output-enable (OE) input should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | SN74ALVC164245 16-Bit 2.5-V to 3.3-V or 3.3-V to 5-V Level-Shifting Transceiver With 3-State Outputs 数据表 (Rev. Q) | PDF | HTML | 2016-9-27 | ||
| 应用手册 | 原理图检查清单 - 使用自动双向转换器进行设计的指南 | PDF | HTML | 英语版 | PDF | HTML | 2024-12-3 | |
| 应用手册 | 原理图检查清单 - 使用固定或方向控制转换器进行设计的指南 | PDF | HTML | 英语版 | PDF | HTML | 2024-10-3 | |
| 应用手册 | Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) | PDF | HTML | 2024-7-3 | |||
| 选择指南 | Voltage Translation Buying Guide (Rev. A) | 2021-4-15 |
设计与开发
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SSOP (DL) | 48 | Ultra Librarian |
| TSSOP (DGG) | 48 | Ultra Librarian |