TCA9517DR vs PCA9508D,118 Comparison
Detailed side-by-side comparison of TCA9517DR by Texas Instruments and PCA9508D,118 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
PCA9508D,118 - Hot-Swap I2C Level Translating Repeater | NXP
PCA9508D,118 ✓ ActiveSpecification Comparison
| Parameter | TCA9517DR | PCA9508D,118 |
|---|---|---|
| Brand | Texas Instruments | NXP Semiconductors |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.53 | $0.72 |
| Function | Level-translating I2C/SMBus bus buffer (repeater) | Hot-swappable level translating I2C-bus repeater / buffer |
| Number of Channels | 2 (SDA and 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) | — |
| 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 | SO-8 (SOP, 3.90 mm, SOT96-1, MS-012) |
| 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) | — |
| ESD Protection | [DATA_NEEDED: ESD rating per datasheet] | — |
| Channels | — | 1 channel (SDA/SCL pair, bidirectional) |
| A-side (Low) Voltage Range | — | 0.9 V to VCC(A) max [DATA_NEEDED: A-side maximum voltage] |
| B-side (High) Voltage Range | — | 2.7 V to 5.5 V |
| Maximum Bus Frequency | — | 400 kHz (I2C fast mode) |
| Supported Buses | — | I2C-bus, SMBus |
| Voltage Offset | — | Zero static voltage offset |
| Hot-Swap Support | — | Yes (drivers enabled only when bus idle, VCC(A) > 0.8 V, VCC(B) > 2.5 V) |
| Enable Pin | — | Yes (EN, system controlled) |
| Technology | — | CMOS |
| Pins | — | 8 |
| Supply Current | — | [DATA_NEEDED: supply current] |
| Packaging Suffix | — | 118 = Tape & Reel |