| PartNumber | 74AC299MTR | 74AC299MTC | 74AC299MTCX |
| Description | Counter Shift Registers 8-Bit PIPO Shift Reg | Counter Shift Registers 8-Inp Shift/Stor Reg | IC SHIFT/REGISTER STORE 20TSSOP |
| Manufacturer | STMicroelectronics | ON Semiconductor | Fairchild Semiconductor |
| Product Category | Counter Shift Registers | Counter Shift Registers | Logic - Shift Registers |
| RoHS | Y | Y | - |
| Counting Sequence | Serial/Parallel to Serial/Parallel | Serial/Parallel to Serial/Parallel | - |
| Number of Circuits | 3 | 8 | - |
| Number of Bits | 8 bit | 8 bit | - |
| Package / Case | SOP-20 | TSSOP-20 | - |
| Logic Family | 74AC | 74AC | - |
| Logic Type | CMOS | CMOS | Shift Register |
| Number of Input Lines | 3 / | 8 / 8 | - |
| Output Type | 3-State | 3-State | Tri-State |
| Propagation Delay Time | 19.3 ns, 10.5 ns | 21.5 ns, 14.5 ns | - |
| Supply Voltage Max | 6 V | 6 V | - |
| Minimum Operating Temperature | 0 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 85 C | - |
| Packaging | Reel | Tube | Tape & Reel (TR) |
| Function | 8 Bit PIPO Shift Register with Asynchronous Clear | 8 Input Universal Shift/Storage Register | Universal |
| Series | 74AC299 | - | 74AC |
| Width | 7.6 mm | 4.4 mm | - |
| Brand | STMicroelectronics | ON Semiconductor / Fairchild | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Number of Output Lines | 10 | 8 | - |
| Operating Supply Voltage | 2 V to 6 V | 2 V to 6 V | - |
| Product Type | Counter Shift Registers | Counter Shift Registers | - |
| Factory Pack Quantity | 1000 | 73 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.009408 oz | 0.006737 oz | - |
| Package Case | - | - | 20-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 2 V ~ 6 V |
| Supplier Device Package | - | - | 20-TSSOP |
| Number of Elements | - | - | 1 |
| Number of Bits per Element | - | - | 8 |