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| Part Number | MC33978ES | MC34978ES | MC33978AES | MC33978EK |
|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | Freescale Semiconductor |
| Product Status | Obsolete | Obsolete | Active | Active |
| Applications | Multiple Switch Detection | Multiple Switch Detection | Multiple Switch Detection | Multiple Switch Detection |
| Interface | SPI | - | SPI | SPI |
| Voltage - Supply | 3V ~ 5.25V | 3V ~ 5.25V | 3V ~ 5.25V | 3V ~ 5.25V |
| Package / Case | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-SSOP (0.295", 7.50mm Width) Exposed Pad |
| Supplier Device Package | 32-QFN-EP (5x5) | 32-QFN-EP (5x5) | 32-QFN-EP (5x5) | 32-SOIC-EP |
| Mounting Type | Surface Mount, Wettable Flank | Surface Mount, Wettable Flank | Surface Mount, Wettable Flank | Surface Mount |
