PCA9557D vs PCF8574DW 比較
詳細並排比較 PCA9557D 由 Texas Instruments 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。
Texas Instruments
PCA9557D - 8-Bit I2C/SMBus I/O Expander with Reset | TI (Tape & Reel)
PCA9557D ✗ 停產規格比較
| 參數 | PCA9557D | PCF8574DW |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 類別 | Interface ICs | Interface ICs |
| 生命週期狀態 | 停產終止 | 啟用中 |
| Number of I/O Bits | 8 | — |
| 介面 | I2C, SMBus | I2C two-line bidirectional bus |
| Bus Frequency (Max) | 400 kHz | — |
| Supply Voltage (VCC) | 2.3 V to 5.5 V | — |
| 工作溫度 | -40 C to +85 C | [DATA_NEEDED: operating temperature range] |
| Standby Current (Max) | 1 uA | — |
| Output Drive Current per Bit | [DATA_NEEDED: per-bit source/sink mA rating] | — |
| I/O Voltage Tolerance | 5.5 V tolerant | — |
| Reset Input | Active-low hardware RESET + software reset (general call) | — |
| Interrupt Output (INT) | Yes, open-drain | — |
| Slave Address Pins | A0, A1, A2 (3 pins, 8 addresses within family) | — |
| 封裝 | 16-SOIC (DR, 7.5 mil pitch) | 16-SOIC |
| 安裝類型 | Surface Mount | Surface mount |
| MSL 等級 | 1 (unlimited floor life) | — |
| RoHS 狀態 | Compliant | — |
| Lead-Free | Yes | — |
| Configuration Registers | Input/output direction registers, polarity inversion | — |
| 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 |
| Interrupt Output | — | Open-drain |
| 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] |