| PartNumber | HEC4021BT,118 | HEC4021BTT,112 | HEC4021BT,112 |
| Description | Counter Shift Registers Programmable Array Logic | Counter Shift Registers 8BIT STATIC SR | Counter Shift Registers 8BIT STATIC SR |
| Manufacturer | Nexperia | NXP Semiconductors | NXP Semiconductors |
| Product Category | Counter Shift Registers | Logic - Shift Registers | Logic - Shift Registers |
| RoHS | Y | - | - |
| Package / Case | SO-16 | - | - |
| Packaging | Reel | Tube Alternate Packaging | Tube Alternate Packaging |
| Brand | Nexperia | - | - |
| Mounting Style | SMD/SMT | - | - |
| Product Type | Counter Shift Registers | - | - |
| Factory Pack Quantity | 2500 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.007079 oz | - | - |
| Series | - | 4000B | 4000B |
| Package Case | - | 16-TSSOP (0.173", 4.40mm Width) | 16-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | - | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | - | Surface Mount | Surface Mount |
| Output Type | - | Push-Pull | Push-Pull |
| Function | - | Parallel or Serial to Serial | Parallel or Serial to Serial |
| Voltage Supply | - | 3 V ~ 15 V | 3 V ~ 15 V |
| Supplier Device Package | - | 16-TSSOP | 16-SO |
| Number of Elements | - | 1 | 1 |
| Logic Type | - | Shift Register | Shift Register |
| Number of Bits per Element | - | 8 | 8 |