TCA9517DR vs PCA9517A 对比
详细并排对比 TCA9517DR 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 | TCA9517DR | 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） | $0.53 | $0.00 |
| 功能 | Level-translating I2C/SMBus bus buffer (repeater) | Level-translating I2C-bus repeater (2-channel bidirectional buffer) |
| Number of Channels | 2 (SDA and SCL) | 2 (SDA, 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) | 400 kHz (per PCA9517 family specification) |
| 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 | SOIC-8 (SOP) |
| 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) | [DATA_NEEDED: RoHS status] |
| ESD Protection | [DATA_NEEDED: ESD rating per datasheet] | — |
| 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 |
| 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 |
| A-Side B Condition | — | B-side port must not connect to rise-time-accelerator devices (PCA9510-9516A, PCA9518) |