| Part Number | MC33978AEKR2 | MC33978AESR2 | 
|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | 
| Category | Interface - Specialized | Interface - Specialized | 
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| Product Status | Active | Active | 
| Applications | Multiple Switch Detection | Multiple Switch Detection | 
| Interface | SPI | SPI | 
| Voltage - Supply | 3V ~ 5.25V | 3V ~ 5.25V | 
| Package / Case | 32-SSOP (0.295", 7.50mm Width) Exposed Pad | 32-VFQFN Exposed Pad | 
| Supplier Device Package | 32-SOIC-EP | 32-QFN-EP (5x5) | 
| Mounting Type | Surface Mount | Surface Mount, Wettable Flank |