PCA9555DW vs TCA9555PWR 对比
详细并排对比 PCA9555DW 出自 Texas Instruments 和 TCA9555PWR 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 | PCA9555DW | TCA9555PWR |
|---|---|---|
| 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 | 有库存 |
| 单价（USD） | $0.00 | $0.79 |
| 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 | — |
| Interrupt Output | Active-low, open-drain | Yes, active-low open-drain INT |
| Weak Pull-up Registers | Configurable | — |
| Configuration Registers | Input/output, polarity and port configuration | Yes (direction, polarity, mask) |
| Output Drive | Push-pull outputs | — |
| 工作温度范围 | -40°C to +85°C | — |
| 封装 | 24-pin SOIC (DW) | 24-pin TSSOP (PW) |
| Package Type | SOIC | — |
| 引脚数量 | 24 pins | — |
| 安装类型 | Surface mount | Surface Mount |
| Low Standby Current | 1 µA maximum | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| AEC-Q100 Qualification | [DATA_NEEDED: AEC-Q100 qualification] | — |
| 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 |
| 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 |
| MSL 等级 | — | 1 (260 C, unlimited floor life per JEDEC J-STD-020) |
| REACH | — | Compliant |