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Product Overview
The SN74ALVCH162721DLR from Texas Instruments is a 20-bit D-type flip-flop with 3-state outputs, designed for low-voltage (2.3V to 3.6V) operation. It features edge-triggered clocking, bus-hold circuitry, and supports partial power-down (Ioff) to prevent backflow current. Housed in a 56-pin SSOP package, it is ideal for high-speed data storage and bus interface applications.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Bits |
20 |
| Supply Voltage (VCC) |
2.3V to 3.6V |
| Input Voltage (VI) |
0V to 5.5V |
| Output Voltage (VO) |
0V to 3.6V |
| High-Level Output Current (IOH) |
-24 mA |
| Low-Level Output Current (IOL) |
24 mA |
| Propagation Delay (tpd) |
4.5 ns max at 3.3V |
| Input Capacitance (Ci) |
4 pF typ |
| Operating Temperature |
-40°C to 85°C |
| Package |
56-SSOP (DLR) |
Key Features
- 20-bit D-type flip-flop with 3-state outputs
- Edge-triggered clocking with clock enable (CLKEN)
- Bus-hold on data inputs eliminates need for pull-up/pull-down resistors
- Partial power-down (Ioff) supports live insertion
- Outputs can be placed in high-impedance state via OE
- ESD protection exceeds JESD 22 (2000-V HBM, 1000-V CDM)
- Latch-up performance exceeds 250 mA per JESD 78
Target Applications
- 5G base station control logic and data buffering
- Automotive dashboard display interface
- Industrial PLC I/O modules
- Telecommunications line cards
- Server memory address register
- Portable electronics with low-power requirements
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74ALVCH162721DLR. Our core advantages include:
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with full quality assurance and traceability.
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be authentic with strict quality control.
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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
SN74ALVCH162721DLR 是德州儀器 (TI) 的一款 20 位 D 型觸發器,帶三態輸出,專為低電壓 (2.3V 至 3.6V) 操作設計。它具有邊沿觸發時鐘、總線保持電路,並支持部分斷電 (Ioff) 以防止反向電流。採用 56 引腳 SSOP 封裝,適用於高速數據存儲和總線接口應用。
詳細技術參數
| 參數 |
數值 |
| 位數 |
20 |
| 電源電壓 (VCC) |
2.3V 至 3.6V |
| 輸入電壓 (VI) |
0V 至 5.5V |
| 輸出電壓 (VO) |
0V 至 3.6V |
| 高電平輸出電流 (IOH) |
-24 mA |
| 低電平輸出電流 (IOL) |
24 mA |
| 傳播延遲 (tpd) |
3.3V 時最大 4.5 ns |
| 輸入電容 (Ci) |
典型 4 pF |
| 工作溫度 |
-40°C 至 85°C |
| 封裝 |
56-SSOP (DLR) |
核心特性
- 20 位 D 型觸發器,帶三態輸出
- 邊沿觸發時鐘,帶時鐘使能 (CLKEN)
- 數據輸入上的總線保持,無需上拉/下拉電阻
- 部分斷電 (Ioff) 支持帶電插拔
- 通過 OE 可將輸出置為高阻抗狀態
- ESD 保護超過 JESD 22 (2000-V HBM, 1000-V CDM)
- 閂鎖性能超過 250 mA (JESD 78)
典型應用場景
- 5G 基站控制邏輯和數據緩衝
- 汽車儀表盤顯示接口
- 工業 PLC I/O 模塊
- 電信線路卡
- 服務器內存地址寄存器
- 低功耗便攜電子設備
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