TCA9517DR vs PCA9517A Comparison
Detailed side-by-side comparison of TCA9517DR by Texas Instruments and PCA9517A by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
TCA9517DR - Level-Shifting I2C Bus Repeater | Texas Instruments
TCA9517DR ✓ ActiveNXP Semiconductors
PCA9517A - Level-Translating I2C-Bus Repeater | NXP Semiconductors
PCA9517A ✓ ActiveSpecification Comparison
| Parameter | TCA9517DR | PCA9517A |
|---|---|---|
| Brand | Texas Instruments | NXP Semiconductors |
| Category | Interface ICs | Bus Repeaters, Buffers & Extenders |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.53 | $0.00 |
| Function | 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) | — |
| Package | SOIC-8 (D), 3.90 mm width | SOIC-8 (SOP) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C | [DATA_NEEDED: operating temperature range] |
| MSL Level | MSL 1 (260C unlimited) | — |
| RoHS Status | 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) |