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Product Overview
The SN74AHCT125N is a quadruple bus buffer gate with 3-state outputs from Texas Instruments. It operates with a supply voltage range of 4.5V to 5.5V, making it ideal for 5V logic systems. The device features independent line drivers with 3-state outputs, which can be controlled by individual output enable inputs (OE). When OE is low, the output is enabled; when high, the output is in a high-impedance state. This allows for bus-oriented applications where multiple outputs can share a common bus line.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Input Voltage (VI) |
0V to 5.5V |
| Output Voltage (VO) |
0V to VCC |
| High-Level Output Current (IOH) |
-8 mA |
| Low-Level Output Current (IOL) |
8 mA |
| Propagation Delay (tpd) |
7.5 ns max at 5V, 50pF |
| Input Capacitance (Ci) |
4 pF typical |
| Operating Temperature |
-40°C to 125°C |
| Package |
14-PDIP |
Key Features
- Quadruple bus buffer gates with 3-state outputs
- Individual output enable controls for each gate
- Wide operating voltage range: 4.5V to 5.5V
- High drive capability: ±8 mA at 5V
- Low power consumption: ICC max 40 µA
- Inputs are TTL-voltage compatible
- ESD protection exceeds 2000V per MIL-STD-883
- Available in 14-PDIP package for through-hole mounting
Target Applications
- 5G base station control logic: buffering signals between FPGA and RF front-end modules
- Automotive dashboard display: driving data lines between MCU and LCD panel
- Industrial PLC: isolating and buffering sensor inputs to controller
- Consumer electronics: level shifting for memory interfaces in set-top boxes
- Telecommunications: line driving for backplane buses in routers
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74AHCT125N. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
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
SN74AHCT125N 是德州儀器推出的四路總線緩衝閘極,帶三態輸出。工作電源電壓範圍為 4.5V 至 5.5V,非常適合 5V 邏輯系統。該器件具有獨立線路驅動器,每個驅動器帶有三態輸出,可通過單獨的輸出使能輸入 (OE) 控制。當 OE 為低電平時,輸出使能;當 OE 為高電平時,輸出處於高阻抗狀態。這使得它適用於總線應用,其中多個輸出可以共享一條公共總線。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 輸入電壓 (VI) |
0V 至 5.5V |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸出電流 (IOH) |
-8 mA |
| 低電平輸出電流 (IOL) |
8 mA |
| 傳播延遲 (tpd) |
7.5 ns 最大值 (5V, 50pF) |
| 輸入電容 (Ci) |
4 pF 典型值 |
| 工作溫度 |
-40°C 至 125°C |
| 封裝 |
14-PDIP |
核心特性
- 四路總線緩衝閘極,帶三態輸出
- 每個閘極有獨立的輸出使能控制
- 寬工作電壓範圍:4.5V 至 5.5V
- 高驅動能力:±8 mA (5V)
- 低功耗:ICC 最大 40 µA
- 輸入與 TTL 電壓兼容
- ESD 保護超過 2000V (MIL-STD-883)
- 提供 14-PDIP 封裝,適合通孔安裝
典型應用場景
- 5G 基站控制邏輯:在 FPGA 與射頻前端模塊之間緩衝信號
- 汽車儀表板顯示:驅動 MCU 與 LCD 面板之間的數據線
- 工業 PLC:隔離和緩衝傳感器輸入至控制器
- 消費電子:機頂盒中存儲器接口的電平轉換
- 電信:路由器中背板總線的線路驅動
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74AHCT125N 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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