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Product Overview
The SN74LS38245DBR is a high-performance 8-bit bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between two data buses. It features 3-state outputs, non-inverting logic, and operates from a single 5V supply. The device is ideal for memory interfacing, data communication, and bus-oriented systems requiring high drive capability and low power consumption.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.75V to 5.25V |
| Input Voltage Range |
0V to 5.5V |
| Output Current (IOL/IOH) |
24mA / -15mA |
| Propagation Delay (tpd) |
12 ns (max) |
| Operating Temperature |
0°C to 70°C |
| Package |
SSOP (DB), 20 pins |
| Logic Family |
LS |
| Number of Bits |
8 |
| Output Type |
3-State |
Key Features
- Bidirectional bus transceiver with non-inverting outputs
- 3-state outputs for bus-oriented applications
- High drive capability: 24mA sink, 15mA source
- Low power consumption: typical ICC of 54mA
- Wide operating voltage range: 4.75V to 5.25V
- Input hysteresis for improved noise margin
- Compatible with TTL logic levels
- Available in SSOP-20 package for space-saving designs
Target Applications
- 5G base station control boards for data bus isolation
- Automotive dashboard display modules for signal buffering
- Industrial PLC systems for parallel data transfer
- Memory interfacing in embedded systems (e.g., SRAM/ROM)
- Telecommunications equipment for backplane communication
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LS38245DBR. 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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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
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
SN74LS38245DBR 是德州儀器推出的一款高性能8位總線收發器,專為雙向異步數據總線通信設計。它採用三態輸出、同相邏輯,並在單一5V電源下工作。該器件非常適合需要高驅動能力和低功耗的存儲器接口、數據通信及總線系統。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.75V 至 5.25V |
| 輸入電壓範圍 |
0V 至 5.5V |
| 輸出電流 (IOL/IOH) |
24mA / -15mA |
| 傳播延遲 (tpd) |
12 ns (最大值) |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
SSOP (DB), 20 引腳 |
| 邏輯系列 |
LS |
| 位數 |
8 |
| 輸出類型 |
三態 |
核心特性
- 雙向總線收發器,同相輸出
- 三態輸出,適用於總線應用
- 高驅動能力:24mA 灌電流,15mA 拉電流
- 低功耗:典型 ICC 為 54mA
- 寬工作電壓範圍:4.75V 至 5.25V
- 輸入遲滯,改善噪聲容限
- 兼容 TTL 邏輯電平
- 採用 SSOP-20 封裝,節省空間
典型應用場景
- 5G 基站控制板,用於數據總線隔離
- 汽車儀表盤顯示模塊,用於信號緩衝
- 工業 PLC 系統,用於並行數據傳輸
- 嵌入式系統中的存儲器接口(如 SRAM/ROM)
- 電信設備中的背板通信
環球供應鏈與批發合作夥伴方案
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我們的核心優勢包括:
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