TCA9517DR vs PCA9508D,118 对比
详细并排对比 TCA9517DR 出自 Texas Instruments 和 PCA9508D,118 出自 NXP Semiconductors。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 | TCA9517DR | PCA9508D,118 |
|---|---|---|
| 品牌 | Texas Instruments | NXP Semiconductors |
| 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） | $0.53 | $0.72 |
| 功能 | Level-translating I2C/SMBus bus buffer (repeater) | Hot-swappable level translating I2C-bus repeater / buffer |
| Number of Channels | 2 (SDA and SCL) | — |
| VCCA Supply Range (A-side) | 0.9 V to 5.5 V | — |
| VCCB Supply Range (B-side) | 3.0 V to 5.5 V | — |
| Maximum Data Rate | 400 kHz (I2C Fast Mode) | — |
| Propagation Delay | 230 ns (max) | — |
| A-side Input Low Level | 0.3 x VCCA | — |
| Powered-Off High Impedance | Yes, on all pins | — |
| Direction Control | Not required (fully bidirectional) | — |
| 封装 | SOIC-8 (D), 3.90 mm width | SO-8 (SOP, 3.90 mm, SOT96-1, MS-012) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C | [DATA_NEEDED: operating temperature range] |
| MSL 等级 | MSL 1 (260C unlimited) | — |
| RoHS 状态 | Compliant (Green, no Sb/Br) | — |
| ESD Protection | [DATA_NEEDED: ESD rating per datasheet] | — |
| 通道数 | — | 1 channel (SDA/SCL pair, bidirectional) |
| A-side (Low) Voltage Range | — | 0.9 V to VCC(A) max [DATA_NEEDED: A-side maximum voltage] |
| B-side (High) Voltage Range | — | 2.7 V to 5.5 V |
| Maximum Bus Frequency | — | 400 kHz (I2C fast mode) |
| Supported Buses | — | I2C-bus, SMBus |
| Voltage Offset | — | Zero static voltage offset |
| Hot-Swap Support | — | Yes (drivers enabled only when bus idle, VCC(A) > 0.8 V, VCC(B) > 2.5 V) |
| 使能引脚 | — | Yes (EN, system controlled) |
| Technology | — | CMOS |
| Pins | — | 8 |
| 电源电流 | — | [DATA_NEEDED: supply current] |
| Packaging Suffix | — | 118 = Tape & Reel |