TCA9517DGKR vs PCA9517ADMR2G 对比
详细并排对比 TCA9517DGKR 出自 Texas Instruments 和 PCA9517ADMR2G 出自 onsemi。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 | TCA9517DGKR | PCA9517ADMR2G |
|---|---|---|
| 品牌 | Texas Instruments | onsemi |
| 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） | $0.65 | $0.62 |
| 功能 | Level-translating I2C/SMBus buffer, repeater | Level-Translating I2C-Bus Repeater / Buffer (ReDriver) |
| 通道数 | 2 (bidirectional SDA, SCL) | — |
| Circuits | 1 | — |
| Maximum Operating Frequency | 400 kHz (Fast-mode I2C) | — |
| VCCA Supply Range | 0.9 V to 5.5 V | — |
| VCCB Supply Range | 2.7 V to 5.5 V | — |
| Supply Restriction | VCCA <= VCCB | — |
| 使能引脚 | Yes (EN) | Yes (EN, active control) |
| Powered-Off High Impedance | Yes (I2C pins high-Z when supply off) | — |
| Response Time | 110 ns (typical, per TCA9517 family data) | — |
| 封装 | 8-VSSOP (DGK), 3.00 mm width | MSOP-8 (DM) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 (260C unlimited) | [DATA_NEEDED: MSL rating] |
| RoHS 状态 | Compliant | RoHS3 Compliant |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40C to +85C [DATA_NEEDED: confirm from datasheet] |
| 静态电流 | [DATA_NEEDED: quiescent current] | — |
| Number of Channels | — | 2 (bidirectional) |
| Low-Voltage Side Range (VCC1) | — | 0.9 V to 3.0 V [DATA_NEEDED: exact upper limit] |
| High-Voltage Side Range (VCC2) | — | 2.7 V to 5.5 V |
| Supported Buses | — | I2C-bus, SMBus |
| Data Rate Support | — | Standard and Fast mode [DATA_NEEDED: maximum kHz] |
| Capacitance Isolation | — | Yes (buffers both bus segments) |
| Rise-Time Accelerator | — | Yes (keeper on high-voltage side) |
| 输出类型 | — | Open-drain (wired-AND) |
| Prefix Suffix Code | — | R2G (Tape and Reel, 2.5 k units) |