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Product Overview
The SN74HC157APWR is a high-speed CMOS quad 2-input multiplexer from Texas Instruments. It selects one of two 4-bit data sources (A or B) based on the state of the select input (S). The device features a common output enable (OE) input that, when high, forces all outputs to a low state. Operating from 2V to 6V, it is ideal for battery-powered and industrial applications. The 16-TSSOP package offers a compact footprint for space-constrained designs.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 6V |
| Input Voltage (VI) |
0V to VCC |
| Output Voltage (VO) |
0V to VCC |
| High-Level Input Voltage (VIH) |
3.15V (min) at VCC=4.5V |
| Low-Level Input Voltage (VIL) |
0.9V (max) at VCC=4.5V |
| High-Level Output Current (IOH) |
-4mA (max) at VCC=4.5V |
| Low-Level Output Current (IOL) |
4mA (max) at VCC=4.5V |
| Propagation Delay (tpd) |
15ns (typ) at VCC=4.5V, CL=50pF |
| Operating Temperature |
-40°C to +85°C |
| Package |
16-TSSOP |
Key Features
- Quad 2-input multiplexer with common select and enable
- Wide operating voltage range: 2V to 6V
- High noise immunity: VNIH = VNIL = 28% of VCC
- Low power consumption: ICC = 4µA (max) at TA=25°C
- Balanced propagation delays: tPLH ≈ tPHL
- Inputs accept voltages up to 6V regardless of VCC
- Outputs can drive up to 10 LSTTL loads
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
Target Applications
- Data routing in 5G base station control boards
- Signal selection in automotive dashboard displays
- Multiplexing sensor inputs in industrial PLCs
- Address decoding in memory modules
- Function selection in portable medical devices
Global Supply Chain & Wholesale Solutions
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SN74HC157APWR. Our core advantages include:
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environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
SN74HC157APWR 是德州儀器推出的高速 CMOS 四路 2 選 1 多路復用器。它根據選擇輸入 (S) 的狀態,從兩組 4 位數據源 (A 或 B) 中選擇一組。器件具有公共輸出使能 (OE) 輸入,當 OE 為高電平時,所有輸出被強制為低電平。工作電壓範圍為 2V 至 6V,非常適合電池供電和工業應用。16-TSSOP 封裝為空間受限的設計提供了緊湊的解決方案。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 6V |
| 輸入電壓 (VI) |
0V 至 VCC |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸入電壓 (VIH) |
3.15V (最小值) 在 VCC=4.5V 時 |
| 低電平輸入電壓 (VIL) |
0.9V (最大值) 在 VCC=4.5V 時 |
| 高電平輸出電流 (IOH) |
-4mA (最大值) 在 VCC=4.5V 時 |
| 低電平輸出電流 (IOL) |
4mA (最大值) 在 VCC=4.5V 時 |
| 傳播延遲 (tpd) |
15ns (典型值) 在 VCC=4.5V, CL=50pF 時 |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
16-TSSOP |
核心特性
- 四路 2 選 1 多路復用器,帶公共選擇和使能
- 寬工作電壓範圍:2V 至 6V
- 高抗噪聲能力:VNIH = VNIL = 28% VCC
- 低功耗:ICC = 4µA (最大值) 在 TA=25°C 時
- 平衡的傳播延遲:tPLH ≈ tPHL
- 輸入可接受高達 6V 的電壓,與 VCC 無關
- 輸出可驅動多達 10 個 LSTTL 負載
- ESD 保護超過 2000V,符合 MIL-STD-883 方法 3015
典型應用場景
- 5G 基站控制板中的數據路由
- 汽車儀表盤顯示中的信號選擇
- 工業 PLC 中的傳感器輸入多路復用
- 存儲器模塊中的地址解碼
- 便攜式醫療設備中的功能選擇
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