MAX3221E
- ESD protection for RS-232 pins
- ±15kV Human-body model (HBM)
- ±8kV (IEC 61000-4-2, Contact discharge)
- ±15kV (IEC 61000-4-2, Air-gap discharge)
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards
- Operates with 3V to 5.5V VCC supply
- Operates up to 250kbit/s
- One driver and one receiver
- Low standby current: 1µA typical
- Accepts 5V logic input with 3.3V supply
- Auto-power-down feature automatically disables drivers for power savings
- Alternative high-speed device (1Mbit/s)
- SN75C3221E and SN65C3221E
The MAX3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC 61000-4-2 ESD protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. These devices operate at data signaling rates up to 250kbit/s and a maximum of 30V/µs driver output slew rate.
Flexible control options for power management are available. Auto-power down disables driver and charge pump when the receiver is disconnected or the remote driver is power down. The drivers can be manually enabled or disabled. INVALID output goes low when receiver input is unconnected or power off.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | MAX3221E 3V to 5.5V Single-Channel RS-232 Line Driver and Receiver With ±15kV IEC ESD Protection datasheet (Rev. E) | PDF | HTML | 2024/12/10 |
設計與開發
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TIDEP0036 — 使用 TMS320C6657 實作高效率 OPUS 轉碼器解決方案的參考設計
TIDEP0036 參考設計提供可在 TMS320C6657 裝置上輕鬆執行的 TI 最佳化 Opus 編碼器/解碼器範例。由於 Opus 支援多種位元率、訊框大小及取樣率（這些全都具有低延遲），因此適用於語音通訊、網路音訊，甚至高性能音訊處理應用。 此設計還特別強調在 DSP 上實作 Opus 編解碼器，相較於通用處理器（例如 ARM）所達成的效能提升。 根據在通用處理器上執行的代碼最佳化程度，在 C66x TI DSP 核心上實作 Opus 編解碼器的性能是實作 ARM CORTEX A-15 的 3 倍。TMS320C66x DSP 同時支援音訊和視訊編解碼器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23-THN (DYY) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | Ultra Librarian |
| SSOP (DB) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。