TCA9555PWR vs PCA9555DWR 对比
详细并排对比 TCA9555PWR 出自 Texas Instruments 和 PCA9555DWR 出自 Texas Instruments。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
规格对比
| 参数 | TCA9555PWR | PCA9555DWR |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 分类 | Interface ICs | Interface ICs |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | — | 有库存 |
| 单价（USD） | — | $2.46 |
| 功能 | 16-bit I2C/SMBus I/O expander | — |
| Number of I/O | 16 | — |
| 接口 | I2C, SMBus | — |
| 最大时钟频率 | 400 kHz (TI) / 1 MHz (UMW second-source) | — |
| I2C Address Pins | 3 (A0, A1, A2) - up to 8 devices per bus | — |
| Interrupt Output | Yes, active-low open-drain INT | Active-low, open-drain |
| Configuration Registers | Yes (direction, polarity, mask) | Input/output, polarity and port configuration |
| Weak Pull-up Resistors | Programmable per port | — |
| Supply Voltage (VCC) | 1.65 V to 5.5 V | — |
| Output Current per Bit | -25 mA to +25 mA (sink/source) | — |
| I/O Voltage Tolerance | 5 V tolerant | — |
| 工作温度 | -40 C to +85 C | — |
| 封装 | 24-pin TSSOP (PW) | 24-pin SOIC (DW) |
| 安装类型 | Surface Mount | Surface mount |
| MSL 等级 | 1 (260 C, unlimited floor life per JEDEC J-STD-020) | — |
| RoHS 状态 | Compliant | [DATA_NEEDED: RoHS status] |
| REACH | Compliant | — |
| Device Type | — | 16-bit I2C/SMBus I/O expander |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| I/O Port Count | — | 16 bits |
| Port Organization | — | 2 x 8-bit ports |
| Bus Interface | — | I2C/SMBus |
| Maximum Bus Frequency | — | 400 kHz |
| Weak Pull-up Registers | — | Configurable |
| Output Drive | — | Push-pull outputs |
| 工作温度范围 | — | -40°C to +85°C |
| Package Type | — | SOIC |
| 引脚数量 | — | 24 pins |
| Low Standby Current | — | 1 µA maximum |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |