TCA9517DGKR vs PCA9517A Comparison
Detailed side-by-side comparison of TCA9517DGKR 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.
NXP Semiconductors
PCA9517A - Level-Translating I2C-Bus Repeater | NXP Semiconductors
PCA9517A ✓ ActiveSpecification Comparison
| Parameter | TCA9517DGKR | 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) | $0.65 | $0.00 |
| Function | Level-translating I2C/SMBus buffer, repeater | Level-translating I2C-bus repeater (2-channel bidirectional buffer) |
| Channels | 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 | — |
| Enable Pin | Yes (EN) | — |
| Powered-Off High Impedance | Yes (I2C pins high-Z when supply off) | — |
| Response Time | 110 ns (typical, per TCA9517 family data) | — |
| Package | 8-VSSOP (DGK), 3.00 mm width | SOIC-8 (SOP) |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | 1 (260C unlimited) | — |
| RoHS Status | Compliant | [DATA_NEEDED: RoHS status] |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Quiescent Current | [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) |