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SN74AHC165PWR TI Shift Register | 16-TSSOP | 8-bit, Parallel-to-Serial
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Product Overview
The SN74AHC165PWR from Texas Instruments is an 8-bit parallel-load shift register that operates with a wide supply voltage range of 2 V to 5.5 V. It features asynchronous parallel load and synchronous serial shift capabilities, making it ideal for expanding digital inputs in microcontroller-based systems. The device is housed in a compact 16-TSSOP package, suitable for space-constrained applications.
Detailed Technical Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VCC) | 2 V to 5.5 V |
| Input Voltage (VI) | 0 V to 5.5 V |
| Output Voltage (VO) | 0 V to VCC |
| High-Level Input Voltage (VIH) | 0.7 × VCC (min) |
| Low-Level Input Voltage (VIL) | 0.3 × VCC (max) |
| High-Level Output Current (IOH) | -8 mA (max) |
| Low-Level Output Current (IOL) | 8 mA (max) |
| Propagation Delay (tpd) | 10.5 ns (max at 5 V) |
| Operating Temperature | -40°C to 125°C |
| Package | 16-TSSOP |
Key Features
- 8-bit parallel-to-serial shift register with asynchronous parallel load
- Wide operating voltage range: 2 V to 5.5 V
- High-speed operation: tpd = 10.5 ns max at 5 V
- Low power consumption: ICC = 4 µA max
- Inputs accept up to 5.5 V regardless of supply voltage
- Outputs can drive up to 8 mA at VCC = 5 V
- Operating temperature range: -40°C to 125°C
- Package: 16-TSSOP (4.4 mm × 5 mm)
Target Applications
- 5G base station control boards for expanding digital inputs
- Automotive dashboard displays for reading switch states
- Industrial PLCs for parallel-to-serial data conversion
- Consumer electronics like smart home hubs for GPIO expansion
- Medical devices such as patient monitors for sensor data acquisition
Global Supply Chain & Wholesale Solutions
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- RoHS Compliant: All electronic components comply with international environmental and safety standards.
- Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.
產品概述
SN74AHC165PWR 是德州儀器（TI）生產的8位並行加載移位寄存器，工作電壓範圍為2 V至5.5 V。它具有異步並行加載和同步串行移位功能，非常適合在微控制器系統中擴展數字輸入。該器件採用緊湊的16-TSSOP封裝，適用於空間受限的應用。
詳細技術參數
| 參數 | 數值 |
|---|---|
| 電源電壓 (VCC) | 2 V 至 5.5 V |
| 輸入電壓 (VI) | 0 V 至 5.5 V |
| 輸出電壓 (VO) | 0 V 至 VCC |
| 高電平輸入電壓 (VIH) | 0.7 × VCC（最小值） |
| 低電平輸入電壓 (VIL) | 0.3 × VCC（最大值） |
| 高電平輸出電流 (IOH) | -8 mA（最大值） |
| 低電平輸出電流 (IOL) | 8 mA（最大值） |
| 傳播延遲 (tpd) | 10.5 ns（最大值，5 V時） |
| 工作溫度 | -40°C 至 125°C |
| 封裝 | 16-TSSOP |
核心特性
- 8位並行轉串行移位寄存器，帶異步並行加載
- 寬工作電壓範圍：2 V 至 5.5 V
- 高速操作：tpd = 10.5 ns（最大值，5 V時）
- 低功耗：ICC = 4 µA（最大值）
- 輸入可接受高達5.5 V電壓，與電源電壓無關
- 輸出可驅動8 mA（VCC = 5 V時）
- 工作溫度範圍：-40°C 至 125°C
- 封裝：16-TSSOP（4.4 mm × 5 mm）
典型應用場景
- 5G基站控制板，用於擴展數字輸入
- 汽車儀表盤顯示，用於讀取開關狀態
- 工業PLC，用於並行轉串行數據轉換
- 消費電子產品如智能家居中樞，用於GPIO擴展
- 醫療設備如病人監護儀，用於傳感器數據採集
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