TCA9517DGKR vs PCA9517A 对比
详细并排对比 TCA9517DGKR 出自 Texas Instruments 和 PCA9517A 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。
NXP Semiconductors
PCA9517A - Level-Translating I2C-Bus Repeater | NXP Semiconductors
PCA9517A ✓ 量产中规格对比
| 参数 | TCA9517DGKR | PCA9517A |
|---|---|---|
| 品牌 | Texas Instruments | NXP Semiconductors |
| 分类 | Interface ICs | Bus Repeaters, Buffers & Extenders |
| 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 | $0.00 |
| 功能 | Level-translating I2C/SMBus buffer, repeater | Level-translating I2C-bus repeater (2-channel bidirectional buffer) |
| 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) | — |
| 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 | SOIC-8 (SOP) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 (260C unlimited) | — |
| RoHS 状态 | Compliant | [DATA_NEEDED: RoHS status] |
| 工作温度 | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| 静态电流 | [DATA_NEEDED: quiescent current] | — |
| A-Side Supply Voltage (VCC(A)) | — | 0.9 V (min operating) to 5.5 V |
| B-Side Supply Voltage (VCC(B)) | — | 2.7 V to 5.5 V |
| Level Translation Range | — | 0.9 V to 5.5 V (A-side) to 2.7 V to 5.5 V (B-side) |
| Bus Interface | — | I2C-bus and SMBus compatible |
| Number of Channels | — | 2 (SDA, SCL) |
| Enable Input | — | EN, active-high repeater-enable |
| Power-Up Driver Enable Thresholds | — | Drivers enabled only when VCC(A) > 0.8 V and VCC(B) > 2.5 V |
| I/O Configuration | — | Open-drain (standard I2C) |
| Process Technology | — | CMOS |
| Maximum Data Rate | — | 400 kHz (per PCA9517 family specification) |
| A-Side B Condition | — | B-side port must not connect to rise-time-accelerator devices (PCA9510-9516A, PCA9518) |