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Product Overview
The UCC5638FQPTR from Texas Instruments is a 9-line SCSI (Small Computer System Interface) active terminator designed for high-performance data bus termination. Housed in a compact 48-pin LQFP (7x7 mm) package, it provides precise impedance matching and signal integrity for SCSI parallel interfaces. This device integrates nine termination channels with 110-ohm output impedance, compliant with SCSI-1, SCSI-2, and Ultra SCSI standards. It operates over a wide supply voltage range of 4.0V to 5.5V and features low output capacitance (typically 6 pF) to minimize signal distortion. The UCC5638FQPTR is ideal for applications requiring reliable bus termination in high-speed digital systems.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Lines |
9 |
| Output Impedance |
110 Ω (typical) |
| Supply Voltage (VCC) |
4.0V to 5.5V |
| Output Capacitance |
6 pF (typical) |
| Operating Temperature |
0°C to +70°C |
| Package |
48-LQFP (7x7 mm) |
| SCSI Standards |
SCSI-1, SCSI-2, Ultra SCSI |
| Power Dissipation |
1.1 W (max) |
Key Features
- 9-line active termination for SCSI buses
- 110-Ω output impedance for impedance matching
- Low output capacitance (6 pF) for high-speed signals
- Wide supply voltage range: 4.0V to 5.5V
- Compact 48-pin LQFP package (7x7 mm)
- Compliant with SCSI-1, SCSI-2, and Ultra SCSI
- Thermal shutdown protection
- Low power consumption in disconnect mode
Target Applications
- SCSI bus termination in server motherboards (e.g., Dell PowerEdge R740)
- Storage area network (SAN) controllers
- RAID controller cards (e.g., LSI MegaRAID 9560)
- High-performance computing clusters
- Industrial data acquisition systems
- Test and measurement equipment (e.g., oscilloscope front-end)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
UCC5638FQPTR. 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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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
UCC5638FQPTR 是德州儀器(TI)推出的 9 線 SCSI(小型計算機系統接口)有源終端器,採用緊湊的 48 引腳 LQFP(7x7 mm)封裝。該器件為 SCSI 並行接口提供精確的阻抗匹配和信號完整性,集成九個終端通道,輸出阻抗為 110 歐姆,符合 SCSI-1、SCSI-2 和 Ultra SCSI 標準。它支持 4.0V 至 5.5V 的寬電源電壓範圍,並具有低輸出電容(典型值 6 pF),以最小化信號失真。UCC5638FQPTR 適用於需要可靠總線終端的高速數字系統。
詳細技術參數
| 參數 |
數值 |
| 線路數量 |
9 |
| 輸出阻抗 |
110 Ω(典型值) |
| 電源電壓(VCC) |
4.0V 至 5.5V |
| 輸出電容 |
6 pF(典型值) |
| 工作溫度 |
0°C 至 +70°C |
| 封裝 |
48-LQFP(7x7 mm) |
| SCSI 標準 |
SCSI-1、SCSI-2、Ultra SCSI |
| 功耗 |
1.1 W(最大值) |
核心特性
- 9 線有源終端,用於 SCSI 總線
- 110 Ω 輸出阻抗,實現阻抗匹配
- 低輸出電容(6 pF),適用於高速信號
- 寬電源電壓範圍:4.0V 至 5.5V
- 緊湊的 48 引腳 LQFP 封裝(7x7 mm)
- 符合 SCSI-1、SCSI-2 和 Ultra SCSI 標準
- 熱關斷保護
- 斷開模式下低功耗
典型應用場景
- 服務器主板中的 SCSI 總線終端(例如 Dell PowerEdge R740)
- 存儲區域網絡(SAN)控制器
- RAID 控制器卡(例如 LSI MegaRAID 9560)
- 高性能計算集群
- 工業數據採集系統
- 測試與測量設備(例如示波器前端)
環球供應鏈與批發合作夥伴方案
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