PCF8574DW vs PCA8574D-T 比較
詳細並排比較 PCF8574DW 由 Texas Instruments 與 PCA8574D-T 由 NXP Semiconductors. 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 | PCF8574DW | PCA8574D-T |
|---|---|---|
| 品牌 | Texas Instruments | NXP Semiconductors |
| 類別 | Interface ICs | Interface ICs |
| 生命週期狀態 | 啟用中 | 停產終止 |
| 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 | — |
| 介面 | I2C two-line bidirectional bus | I2C-bus (2-line: SCL, SDA) |
| Port Architecture | Quasi-bidirectional I/O | — |
| Interrupt Output | Open-drain | Yes (open-drain INT) |
| Standby Current | 10 µA maximum | — |
| 封裝 | 16-SOIC | SO16 (SOIC-16) |
| 腳位數 | 16 pins | — |
| 安裝類型 | Surface mount | Surface Mount |
| Application Category | I/O expander | — |
| Bus | I2C/SMBus | — |
| Port Names | P0 through P7 | — |
| Manufacturer | Texas Instruments | — |
| Compliance Information | [DATA_NEEDED: RoHS status] | — |
| 工作溫度 | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| 功能 | — | Remote 8-bit I/O expander for I2C-bus with interrupt |
| Number of I/O | — | 8 (quasi-bidirectional) |
| I2C Bus Speed | — | 400 kHz (Fast-mode) |
| Address Pins | — | 3 (A0, A1, A2) |
| Max Devices per Bus (PCA8574/74A) | — | 16 (up to 128 I/Os) |
| Supply Voltage Range | — | [DATA_NEEDED: supply voltage range] |
| 輸出類型 | — | Quasi-bidirectional, latched |
| Packaging | — | Tape and Reel (-T suffix) |
| RoHS 狀態 | — | unknown |
| MSL 等級 | — | [DATA_NEEDED: moisture sensitivity level] |
| 生命週期狀態 | — | End of Life (per NXP product page) |