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| Part Number | MC33978AEK | MC33978AES | MC34978AEK | MC33978EK |
|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | Freescale Semiconductor |
| Product Status | Active | Active | 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 | 4.5V ~ 36V | 3V ~ 5.25V |
| Package / Case | 32-SSOP (0.295", 7.50mm Width) Exposed Pad | 32-VFQFN Exposed Pad | 32-SSOP (0.295", 7.50mm Width) Exposed Pad | 32-SSOP (0.295", 7.50mm Width) Exposed Pad |
| Supplier Device Package | 32-SOIC-EP | 32-QFN-EP (5x5) | 32-SOIC-EP | 32-SOIC-EP |
| Mounting Type | Surface Mount | Surface Mount, Wettable Flank | Surface Mount | Surface Mount |
