PCA9517A vs TCA9517DR Comparison
Detailed side-by-side comparison of PCA9517A by NXP Semiconductors and TCA9517DR by Texas Instruments. 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 ✓ ActiveTexas Instruments
TCA9517DR - Level-Shifting I2C Bus Repeater | Texas Instruments
TCA9517DR ✓ ActiveSpecification Comparison
| Parameter | PCA9517A | TCA9517DR |
|---|---|---|
| Brand | NXP Semiconductors | Texas Instruments |
| Category | Bus Repeaters, Buffers & Extenders | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $0.53 |
| Function | Level-translating I2C-bus repeater (2-channel bidirectional buffer) | Level-translating I2C/SMBus bus buffer (repeater) |
| 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) | 2 (SDA and 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 | — |
| Package | SOIC-8 (SOP) | SOIC-8 (D), 3.90 mm width |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C |
| Maximum Data Rate | 400 kHz (per PCA9517 family specification) | 400 kHz (I2C Fast Mode) |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant (Green, no Sb/Br) |
| A-Side B Condition | B-side port must not connect to rise-time-accelerator devices (PCA9510-9516A, PCA9518) | — |
| VCCA Supply Range (A-side) | — | 0.9 V to 5.5 V |
| VCCB Supply Range (B-side) | — | 3.0 V to 5.5 V |
| 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) |
| MSL Level | — | MSL 1 (260C unlimited) |
| ESD Protection | — | [DATA_NEEDED: ESD rating per datasheet] |