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Product Overview
The SN74ABT18502PM from Texas Instruments is a high-performance 8-bit universal bus transceiver designed for bidirectional asynchronous communication between data buses. It features two 8-bit input/output ports (A and B) and control pins (OEAB, CEAB, LEAB, OEBA, CEBA, LEBA) that allow flexible data flow direction and storage. Operating from a 3.3V supply, it supports mixed-voltage systems with 5V-tolerant inputs. The device is housed in a 64-pin LQFP (10x10 mm) package, ideal for space-constrained applications requiring high-speed data transfer and low power consumption.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
3.3V ± 0.3V |
| Input Voltage Range |
0V to 5.5V (5V-tolerant) |
| Output Voltage Range |
0V to VCC |
| Propagation Delay (tpd) |
4.1 ns typical at 3.3V |
| Output Drive Current |
±32 mA |
| Operating Temperature |
-40°C to +85°C |
| Package |
64-LQFP (10x10 mm) |
| Logic Family |
ABT |
| Number of Bits |
8 |
| ESD Protection |
2000V HBM |
Key Features
- Bidirectional bus transceiver with storage capability
- 8-bit wide data path
- 3.3V operation with 5V-tolerant inputs
- High drive capability: ±32 mA
- Low propagation delay: 4.1 ns typical
- Power-up 3-state outputs to prevent bus contention
- Flow-through pinout for easy PCB layout
- ESD protection exceeds 2000V HBM
Target Applications
- 5G base station control boards (e.g., data bus isolation in remote radio units)
- Automotive dashboard display modules (e.g., instrument cluster communication)
- Industrial PLC I/O modules (e.g., backplane data transfer)
- Telecommunications switching equipment (e.g., line card interfaces)
- Medical imaging systems (e.g., data acquisition boards)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74ABT18502PM. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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orders confirmed before 4 PM are shipped the same day.
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BOM Kitting & Sampling Services: Specialized sourcing for
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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
SN74ABT18502PM 是德州儀器(TI)推出的一款高性能8位通用匯流排收發器,專為雙向非同步數據匯流排通信設計。它具有兩個8位輸入/輸出埠(A和B)以及控制引腳(OEAB、CEAB、LEAB、OEBA、CEBA、LEBA),可靈活控制數據流向和存儲。器件工作在3.3V電源下,輸入可承受5V電壓,支援混合電壓系統。採用64引腳LQFP(10x10 mm)封裝,適合需要高速數據傳輸和低功耗的空間受限應用。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
3.3V ± 0.3V |
| 輸入電壓範圍 |
0V 至 5.5V(5V容忍) |
| 輸出電壓範圍 |
0V 至 VCC |
| 傳播延遲 (tpd) |
典型值 4.1 ns @ 3.3V |
| 輸出驅動電流 |
±32 mA |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
64-LQFP (10x10 mm) |
| 邏輯系列 |
ABT |
| 位數 |
8 |
| ESD 保護 |
2000V HBM |
核心特性
- 雙向匯流排收發器,帶存儲功能
- 8位寬數據路徑
- 3.3V 工作,5V 容忍輸入
- 高驅動能力:±32 mA
- 低傳播延遲:典型值 4.1 ns
- 上電三態輸出,防止匯流排競爭
- 流暢引腳排列,便於 PCB 佈局
- ESD 保護超過 2000V HBM
典型應用場景
- 5G 基站控制板(例如,遠端射頻單元中的數據匯流排隔離)
- 汽車儀表板顯示模組(例如,儀表組通信)
- 工業 PLC I/O 模組(例如,背板數據傳輸)
- 電信交換設備(例如,線路卡介面)
- 醫療影像系統(例如,數據採集板)
環球供應鏈與批發合作夥伴方案
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