PCA8574D,518 vs PCF8574DW 比較
詳細並排比較 PCA8574D,518 由 NXP Semiconductors 與 PCF8574DW 由 Texas Instruments. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
規格比較
| 參數 | PCA8574D,518 | PCF8574DW |
|---|---|---|
| 品牌 | NXP Semiconductors | Texas Instruments |
| 類別 | Interface ICs | Interface ICs |
| 生命週期狀態 | 停產終止 | 啟用中 |
| 功能 | Remote 8-bit I/O expander for I2C-bus with interrupt | — |
| Number of I/O | 8 (quasi-bidirectional) | — |
| 介面 | I2C (2-wire, SCL/SDA) | I2C two-line bidirectional bus |
| Clock Frequency | 400 kHz | — |
| 供應電壓 | 2.3 V to 5.5 V | — |
| Hardware Address Pins | 3 (A0, A1, A2) | — |
| Interrupt Output | Yes, open-drain active-low | Open-drain |
| Port Type | Quasi-bidirectional, independently assignable | — |
| Max Devices per Bus | 8 (16 with PCA8574A variant) | — |
| 封裝 | 16-SOIC (SO16, 7.50 mm width) | 16-SOIC |
| 安裝類型 | Surface Mount | Surface mount |
| Packaging | Tape & Reel | — |
| 生命週期狀態 | End of Life (per NXP product page) | — |
| RoHS 狀態 | Compliant | — |
| 工作溫度 | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Product Type | — | 8-bit I2C I/O expander |
| Number of I/O Ports | — | 8 |
| I2C Maximum Clock Frequency | — | 100 kHz |
| Operating Supply Range | — | 2.5 V to 6 V VCC |
| Product-Page Supply Range | — | 2.5 V to 5.5 V |
| Port Architecture | — | Quasi-bidirectional I/O |
| Standby Current | — | 10 µA maximum |
| 腳位數 | — | 16 pins |
| Application Category | — | I/O expander |
| Bus | — | I2C/SMBus |
| Port Names | — | P0 through P7 |
| Manufacturer | — | Texas Instruments |
| Compliance Information | — | [DATA_NEEDED: RoHS status] |