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| PartNumber | BU4021BF-E2 | BU4021BF-E21702 | BU4021BF |
| Description | Counter Shift Registers 8 BIT STATIC SHIFT REGULATOR | ||
| Manufacturer | ROHM Semiconductor | - | |
| Product Category | Counter Shift Registers | - | Logic - Shift Registers |
| RoHS | Y | - | - |
| Counting Sequence | Serial/Parallel to Parallel | - | - |
| Number of Circuits | 1 | - | - |
| Number of Bits | 8 bit | - | - |
| Logic Family | 4000B | - | - |
| Logic Type | CMOS | - | - |
| Number of Input Lines | 9 | - | - |
| Propagation Delay Time | 400 ns, 170 ns, 115 ns | - | - |
| Supply Voltage Max | 16 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Reel | - | - |
| Function | Shift Register | - | - |
| Series | BU4021B | - | - |
| Width | 4.4 mm | - | - |
| Brand | ROHM Semiconductor | - | - |
| Mounting Style | SMD/SMT | - | - |
| Number of Output Lines | 3 | - | - |
| Operating Supply Voltage | 3.3 V, 5 V, 9 V, 12 V, 15 V | - | - |
| Product Type | Counter Shift Registers | - | - |
| Factory Pack Quantity | 2500 | - | - |
| Subcategory | Logic ICs | - | - |
| Part # Aliases | BU4021BF | - | - |
| Unit Weight | 0.008536 oz | - | - |