SN54LVTH162244-SP
QML-V, 16-channel 2.7V to 3.6V buffers with bus-hold, TTL-compatible CMOS inputs and 3-state outputs
SN54LVTH162244-SP
- Members of the Texas Instruments Widebus™ Family
- Output Ports Have Equivalent 22-
Series Resistors, So No External Resistors Are Required - Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
- Support Unregulated Battery Operation Down to 2.7 V
- Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
- Ioff and Power-Up 3-State Support Hot Insertion
- Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
- Distributed VCC and GND Pins Minimize High-Speed Switching Noise
- Flow-Through Architecture Optimizes PCB Layout
- Latch-Up Performance Exceeds 500 mA Per JESD 17
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
Widebus is a trademark of Texas Instruments.
The 'LVTH162244 devices are 16-bit buffers and line drivers designed for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. These devices provide true outputs and symmetrical active-low output-enable (OE) inputs.
The outputs, which are designed to source or sink up to 12 mA, include equivalent 22- series resistors to reduce overshoot and undershoot.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
When VCC is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE 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.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
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 | SN54LVTH162244; SN74LVTH162244 datasheet (Rev. N) | 2006/11/1 | |||
| * | SMD | SN54LVTH162244-SP SMD 5962-96809 | 2016/7/8 | |||
| 選擇指南 | TI Space Products (Rev. L) | 2026/3/27 | ||||
| Application brief | DLA Approved Optimizations for QML Products (Rev. C) | PDF | HTML | 2025/6/17 | |||
| 應用說明 | Heavy Ion Orbital Environment Single-Event Effects Estimations (Rev. B) | PDF | HTML | 2025/6/10 | |||
| 更多文件說明 | TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. B) | 2025/2/20 | ||||
| 應用說明 | Single-Event Effects Confidence Interval Calculations (Rev. A) | PDF | HTML | 2022/10/19 |
設計與開發
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