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SN74AHCT373RKSR TI Latches | 20-VQFN (2.5x4.5) | 8-bit D-type, 3-state
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Product Overview
The SN74AHCT373RKSR is an octal D-type transparent latch with 3-state outputs from Texas Instruments. It operates with a wide supply voltage range of 4.5V to 5.5V, making it suitable for 5V logic systems. The device features eight latches with non-inverting outputs, controlled by a latch enable (LE) and output enable (OE) inputs. When LE is high, the outputs follow the data inputs; when LE goes low, the data is latched. The 3-state outputs allow connection to bus-oriented systems. Housed in a compact 20-VQFN (2.5x4.5mm) package, it is ideal for space-constrained applications.
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 Input Voltage (VIH) | 2V (min) |
| Low-Level Input Voltage (VIL) | 0.8V (max) |
| High-Level Output Current (IOH) | -8mA |
| Low-Level Output Current (IOL) | 8mA |
| Propagation Delay (tpd) | 8.5ns (max) at 5V, 50pF |
| Operating Temperature | -40°C to 125°C |
| Package | 20-VQFN (2.5x4.5mm) |
Key Features
- 8-bit D-type transparent latch with 3-state outputs
- Wide operating voltage: 4.5V to 5.5V
- High drive capability: ±8mA at 5V
- Fast propagation delay: 8.5ns max
- Low power consumption: ICC max 40μA
- Inputs are TTL-voltage compatible
- 3-state outputs for bus-oriented applications
- Industrial temperature range: -40°C to 125°C
- Small footprint: 20-VQFN (2.5x4.5mm)
Target Applications
The SN74AHCT373RKSR is ideal for a variety of applications requiring data latching and bus interfacing. Specific examples include:
- 5G base station control logic for data buffering and address latching
- Automotive dashboard displays for latching display data from microcontroller
- Industrial PLCs for I/O expansion and data storage
- Networking equipment (routers, switches) for temporary data holding
- Medical devices (patient monitors) for data acquisition and control
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74AHCT373RKSR. Our core advantages include:
- 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
- In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
- HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
- Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
- 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.
- 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
- RoHS Compliant: All electronic components comply with international environmental and safety standards.
- Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.
產品概述
SN74AHCT373RKSR 是德州儀器（TI）生產的八路 D 型透明鎖存器，帶三態輸出。它支持 4.5V 至 5.5V 的寬電源電壓範圍，適用於 5V 邏輯系統。該器件包含八個具有同相輸出的鎖存器，由鎖存使能（LE）和輸出使能（OE）輸入控制。當 LE 為高電平時，輸出跟隨數據輸入；當 LE 變為低電平時，數據被鎖存。三態輸出便於連接總線系統。採用緊湊的 20-VQFN（2.5x4.5mm）封裝，適合空間受限的應用。
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 |
| 高電平輸入電壓（VIH） | 2V（最小值） |
| 低電平輸入電壓（VIL） | 0.8V（最大值） |
| 高電平輸出電流（IOH） | -8mA |
| 低電平輸出電流（IOL） | 8mA |
| 傳播延遲（tpd） | 8.5ns（最大值，5V，50pF） |
| 工作溫度 | -40°C 至 125°C |
| 封裝 | 20-VQFN（2.5x4.5mm） |
核心特性
- 八路 D 型透明鎖存器，帶三態輸出
- 寬工作電壓：4.5V 至 5.5V
- 高驅動能力：±8mA（5V）
- 快速傳播延遲：最大 8.5ns
- 低功耗：ICC 最大 40μA
- 輸入與 TTL 電壓兼容
- 三態輸出，適用於總線應用
- 工業溫度範圍：-40°C 至 125°C
- 小尺寸：20-VQFN（2.5x4.5mm）
典型應用場景
SN74AHCT373RKSR 適用於需要數據鎖存和總線接口的多種應用。具體實例包括：
- 5G 基站控制邏輯中的數據緩衝和地址鎖存
- 汽車儀表板顯示器，用於鎖存來自微控制器的顯示數據
- 工業 PLC 的 I/O 擴展和數據存儲
- 網絡設備（路由器、交換機）的臨時數據保持
- 醫療設備（病人監護儀）的數據採集和控制
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