| PartNumber | CD4045BPWG4 | CD4045BPW | CD4045BPWE4 |
| Description | Counter ICs CMOS 21-St Counter | IC COUNTER 21-STAGE 16-TSSOP | IC COUNTER 21-STAGE 16-TSSOP |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Counter ICs | Logic - Counters, Dividers | Logic - Counters, Dividers |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TSSOP-16 | - | - |
| Logic Family | CMOS | - | - |
| Number of Bits | 21 | - | - |
| Operating Supply Voltage | 3 V to 18 V | - | - |
| Packaging | Tube | Tube | Tube |
| Brand | Texas Instruments | - | - |
| Product Type | Counter ICs | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Counter ICs | - | - |
| Unit Weight | 0.006102 oz | - | - |
| Series | - | 4000B | 4000B |
| Package Case | - | 16-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | - | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | - | Surface Mount | Surface Mount |
| Direction | - | Up | Up |
| Voltage Supply | - | 3 V ~ 18 V | 3 V ~ 18 V |
| Supplier Device Package | - | 16-TSSOP | 16-TSSOP |
| Number of Elements | - | 1 | 1 |
| Logic Type | - | Binary Counter | Binary Counter |
| Number of Bits per Element | - | 12 | 12 |
| Reset | - | - | - |
| Timing | - | - | - |
| Count Rate | - | 12MHz | 12MHz |
| Trigger Type | - | Negative Edge | Negative Edge |