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Product Overview
The SN74ACT240PWR is a high-performance octal buffer and line driver from Texas Instruments, designed with 3-state outputs for bus-oriented applications. It features inverting outputs and operates from a 4.5V to 5.5V supply voltage. Housed in a compact 20-pin TSSOP package, this device is ideal for driving capacitive loads or low-impedance lines in digital systems. The ACT240 offers improved speed and drive capability compared to standard 74AC240 devices, making it suitable for high-speed data transmission and memory address driving.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Input Voltage (VI) |
0V to VCC |
| Output Voltage (VO) |
0V to VCC |
| High-Level Output Current (IOH) |
-24 mA |
| Low-Level Output Current (IOL) |
24 mA |
| Propagation Delay (tpd) |
6.5 ns max at 5V, 50pF |
| Input Capacitance (Ci) |
4.5 pF typ |
| Operating Temperature |
-40°C to 85°C |
| Package |
20-TSSOP |
Key Features
- Octal inverting buffer/line driver with 3-state outputs
- Wide operating voltage range: 4.5V to 5.5V
- High drive capability: ±24 mA at 5V
- Fast propagation delay: 6.5 ns max at 5V, 50pF
- Low power consumption: ICC 80 µA max
- Inputs accept voltages up to 5.5V
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
- Available in 20-pin TSSOP package for space-constrained designs
Target Applications
- 5G base station control logic: driving address/data buses between FPGAs and memory modules
- Automotive dashboard display: buffering signals from MCU to LCD driver
- Industrial PLC: interfacing between microcontrollers and high-current relays
- Telecommunications: line driving for backplane buses in routers and switches
- Medical imaging: signal conditioning for data acquisition systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74ACT240PWR. 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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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
SN74ACT240PWR 是德州儀器推出的一款高性能八路緩衝器和線路驅動器,具有三態輸出,適用於總線導向應用。該器件採用反相輸出,工作電源電壓範圍為 4.5V 至 5.5V。採用緊湊的 20 引腳 TSSOP 封裝,非常適合在數字系統中驅動電容性負載或低阻抗線路。與標準 74AC240 器件相比,ACT240 提供了更高的速度和驅動能力,適用於高速數據傳輸和存儲器地址驅動。
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 VCC |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸出電流 (IOH) |
-24 mA |
| 低電平輸出電流 (IOL) |
24 mA |
| 傳播延遲 (tpd) |
6.5 ns 最大值 (5V, 50pF) |
| 輸入電容 (Ci) |
4.5 pF 典型值 |
| 工作溫度 |
-40°C 至 85°C |
| 封裝 |
20-TSSOP |
核心特性
- 八路反相緩衝器/線路驅動器,帶三態輸出
- 寬工作電壓範圍:4.5V 至 5.5V
- 高驅動能力:±24 mA (5V)
- 快速傳播延遲:6.5 ns 最大值 (5V, 50pF)
- 低功耗:ICC 80 µA 最大值
- 輸入可接受高達 5.5V 的電壓
- ESD 保護超過 2000V (MIL-STD-883, Method 3015)
- 採用 20 引腳 TSSOP 封裝,節省空間
典型應用場景
- 5G 基站控制邏輯:驅動 FPGA 與存儲器模塊之間的地址/數據總線
- 汽車儀表盤顯示:將 MCU 信號緩衝至 LCD 驅動器
- 工業 PLC:微控制器與大電流繼電器之間的接口
- 電信設備:路由器與交換機中背板總線的線路驅動
- 醫療成像:數據採集系統的信號調理
環球供應鏈與批發合作夥伴方案
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