| PartNumber | 74ACT299PC | 74ACT299MTCX | 74ACT299MTC |
| Description | Counter Shift Registers 8-Inp Shift/Stor Reg | Counter Shift Registers 8-Inp Shift/Stor Reg | Counter Shift Registers 8-Inp Shift/Stor Reg |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Counter Shift Registers | Counter Shift Registers | Counter Shift Registers |
| RoHS | Y | Y | Y |
| Counting Sequence | Serial/Parallel to Serial/Parallel | Serial/Parallel to Serial/Parallel | Serial/Parallel to Serial/Parallel |
| Number of Circuits | 8 | 8 | 8 |
| Number of Bits | 8 bit | 8 bit | 8 bit |
| Package / Case | PDIP-20 | TSSOP-20 | TSSOP-20 |
| Logic Family | 74ACT | 74ACT | 74ACT |
| Logic Type | CMOS | CMOS | CMOS |
| Number of Input Lines | 2 / 3 | 2 / 3 | 2 / 3 |
| Output Type | 3-State | 3-State | 3-State |
| Propagation Delay Time | 13.5 ns | 13.5 ns | 13.5 ns |
| Supply Voltage Max | 5 V | 5 V | 5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Reel | Tube |
| Function | Register | 8 Input Universal Shift/Storage Register | 8 Input Universal Shift/Storage Register |
| Width | 7.11 mm | 4.4 mm | 4.4 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Mounting Style | Through Hole | SMD/SMT | SMD/SMT |
| Number of Output Lines | 3 | 3 | 3 |
| Operating Supply Voltage | 2 V to 6 V | 2 V to 6 V | 2 V to 6 V |
| Product Type | Counter Shift Registers | Counter Shift Registers | Counter Shift Registers |
| Factory Pack Quantity | 18 | 2500 | 73 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.079719 oz | 0.006737 oz | 0.006737 oz |
| Part # Aliases | - | 74ACT299MTCX_NL | - |