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Product Overview
The CD74AC540M from Texas Instruments is a high-speed octal inverter/buffer with 3-state outputs. It is designed for 1.5V to 5.5V VCC operation and features balanced propagation delays and high noise immunity. The device is ideal for driving bus lines or buffering memory address registers. Its 3-state outputs allow connection to a common bus, making it suitable for multiplexed data transmission.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
1.5V to 5.5V |
| Input Voltage (VI) |
0V to VCC |
| Output Voltage (VO) |
0V to VCC |
| High-Level Output Current (IOH) |
-24 mA at 3V, -50 mA at 5V |
| Low-Level Output Current (IOL) |
24 mA at 3V, 50 mA at 5V |
| Propagation Delay (tpd) |
6.5 ns typical at 5V |
| Input Capacitance |
10 pF |
| Operating Temperature |
-55°C to +125°C |
| Package |
20-SOIC |
Key Features
- 8 inverting buffers with 3-state outputs
- Wide operating voltage range: 1.5V to 5.5V
- High drive capability: ±24 mA at 3V, ±50 mA at 5V
- Low power consumption: 80 µA max ICC
- Balanced propagation delays
- High noise immunity: VNIH = 0.7 × VCC, VNIL = 0.3 × VCC
- Inputs accept voltages up to 5.5V regardless of VCC
- ESD protection exceeds 2000V per MIL-STD-883
Target Applications
- 5G base station control logic
- Automotive dashboard display drivers
- Industrial PLC I/O modules
- Memory address buffering in servers
- Bus interface for FPGA/CPLD
- Portable battery-powered devices
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
CD74AC540M. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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testing samples and urgent shortage components.
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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
CD74AC540M 是德州儀器的高速八路反相緩衝器/驅動器,具有三態輸出。它設計用於 1.5V 至 5.5V 的 VCC 操作,具有平衡的傳播延遲和高噪聲抗擾度。該器件非常適合驅動總線線路或緩衝存儲器地址寄存器。其三態輸出允許連接到公共總線,適用於多路復用數據傳輸。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
1.5V 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) |
3V 時 -24 mA,5V 時 -50 mA |
| 低電平輸出電流 (IOL) |
3V 時 24 mA,5V 時 50 mA |
| 傳播延遲 (tpd) |
5V 時典型值 6.5 ns |
| 輸入電容 |
10 pF |
| 工作溫度 |
-55°C 至 +125°C |
| 封裝 |
20-SOIC |
核心特性
- 8 路反相緩衝器,帶三態輸出
- 寬工作電壓範圍:1.5V 至 5.5V
- 高驅動能力:3V 時 ±24 mA,5V 時 ±50 mA
- 低功耗:最大 ICC 80 µA
- 平衡的傳播延遲
- 高噪聲抗擾度:VNIH = 0.7 × VCC,VNIL = 0.3 × VCC
- 輸入可接受高達 5.5V 的電壓,與 VCC 無關
- ESD 保護超過 2000V(符合 MIL-STD-883)
典型應用場景
- 5G 基站控制邏輯
- 汽車儀表盤顯示驅動
- 工業 PLC I/O 模塊
- 服務器中的存儲器地址緩衝
- FPGA/CPLD 的總線接口
- 便攜式電池供電設備
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