PCF8574AN vs PCF8574PWR 比較
詳細並排比較 PCF8574AN 由 Texas Instruments 與 PCF8574PWR 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 | PCF8574AN | PCF8574PWR |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 類別 | Interface ICs | Interface ICs |
| 生命週期狀態 | 啟用中 | 啟用中 |
| Device Type | [DATA_NEEDED: device type] | — |
| I/O Direction | [DATA_NEEDED: I/O direction] | — |
| Number of I/O Lines | [DATA_NEEDED: number of I/O lines] | — |
| 介面類型 | [DATA_NEEDED: interface type] | — |
| Operating Supply Voltage Range | [DATA_NEEDED: operating supply voltage range] | — |
| Input Logic Voltage Levels | [DATA_NEEDED: input logic voltage levels] | — |
| Output Logic Voltage Levels | [DATA_NEEDED: output logic voltage levels] | — |
| Output Drive Current | [DATA_NEEDED: output drive current] | — |
| Output Sink Current | [DATA_NEEDED: output sink current] | — |
| Maximum Serial Clock Frequency | [DATA_NEEDED: maximum serial clock frequency] | — |
| Address Range | [DATA_NEEDED: address range] | — |
| 靜態電流 | [DATA_NEEDED: quiescent current] | — |
| 工作溫度範圍 | [DATA_NEEDED: operating temperature range] | — |
| 封裝 | [DATA_NEEDED: package designation] | 20-pin TSSOP (PW) |
| 腳位數 | [DATA_NEEDED: pin count] | — |
| 安裝類型 | [DATA_NEEDED: mounting type] | Surface Mount |
| RoHS 狀態 | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| Lead-Free Status | [DATA_NEEDED: lead-free status] | — |
| 功能 | — | I/O Expander |
| Number of I/O | — | 8 |
| 介面 | — | I2C (SMBus compatible) |
| Clock Frequency (Max) | — | 100 kHz |
| I2C Address Base | — | 0x20 (PCF8574A: 0x38) |
| Supply Voltage (VCC) | — | 2.5 V to 6 V |
| Supply Current (Standby) | — | 2.5 uA typical |
| Interrupt Output | — | Yes (active-low INT) |
| Hardware Address Pins | — | 3 (A0, A1, A2) |
| Max Devices on Bus | — | 8 (16 combined with PCF8574A) |
| Output Drive (Source/Sink) | — | 25 mA / 25 mA per I/O |
| I/O Type | — | Quasi-bidirectional (no direction register) |
| 工作溫度 | — | -40 C to +85 C |
| MSL 等級 | — | 1 (unlimited floor life) |