SN74LS273 具有清零功能的八路 D 类触发器
These monolithic, positive-edge-triggered flip-flops utilize TTL circuitry to implement D-type flip-flop logic with a direct clear input.
Information at the D inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a particular voltage level and is not directly related to the transition time of the positive-going pulse. When the clock input is at either the high or low level, the D input signal has no effect at the output.
These flip-flops are guaranteed to respond to clock frequencies ranging form 0 to 30 megahertz while maximum clock frequency is typically 40 megahertz. Typical power dissipation is 39 milliwatts per flip-flop for the '273 and 10 milliwatts for the 'LS273
| SN74LS273 | |
| Voltage Nodes(V) | 5 |
| Rating | Catalog |
SN74LS273 特性
- Contains Eight Flip-Flops With Single-Rail Outputs
- Buffered Clock and Direct Clear Inputs
- Individual Data Input to Each Flip-Flop
- Applications Include:
- Buffer/Storage Registers
- Shift Registers
- Pattern Generators
SN74LS273 芯片订购指南
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74LS273DBLE | OBSOLETE | -40 to 85 | SSOP (DB) | 20 | |||
| SN74LS273DBR | ACTIVE | -40 to 85 | 0.40 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74LS273DBRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74LS273DW | ACTIVE | -40 to 85 | 0.43 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS273DWE4 | ACTIVE | -40 to 85 | 0.43 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS273DWG4 | ACTIVE | -40 to 85 | 0.43 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS273DWR | ACTIVE | -40 to 85 | 0.36 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74LS273DWRE4 | ACTIVE | -40 to 85 | 0.36 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74LS273DWRG4 | ACTIVE | -40 to 85 | 0.36 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74LS273N | ACTIVE | -40 to 85 | 0.40 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN74LS273NE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN74LS273NSR | ACTIVE | -40 to 85 | 0.40 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74LS273NSRE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74LS273NSRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74LS273PW | ACTIVE | -40 to 85 | 0.43 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74LS273PWE4 | ACTIVE | -40 to 85 | 0.43 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74LS273PWG4 | ACTIVE | -40 to 85 | 0.43 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74LS273PWLE | OBSOLETE | -40 to 85 | TSSOP (PW) | 20 | |||
| SN74LS273PWR | ACTIVE | -40 to 85 | 0.36 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R | |
| SN74LS273PWRE4 | ACTIVE | -40 to 85 | 0.36 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R | |
| SN74LS273PWRG4 | ACTIVE | -40 to 85 | 0.36 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R |
SN74LS273 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| SN74LS273DBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DBR | SN74LS273DBR |
| SN74LS273DBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DBRG4 | SN74LS273DBRG4 |
| SN74LS273DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DW | SN74LS273DW |
| SN74LS273DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DWE4 | SN74LS273DWE4 |
| SN74LS273DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DWG4 | SN74LS273DWG4 |
| SN74LS273DWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DWR | SN74LS273DWR |
| SN74LS273DWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DWRE4 | SN74LS273DWRE4 |
| SN74LS273DWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273DWRG4 | SN74LS273DWRG4 |
| SN74LS273N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS273N | SN74LS273N |
| SN74LS273NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS273NE4 | SN74LS273NE4 |
| SN74LS273NSR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273NSR | SN74LS273NSR |
| SN74LS273NSRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273NSRE4 | SN74LS273NSRE4 |
| SN74LS273NSRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273NSRG4 | SN74LS273NSRG4 |
| SN74LS273PW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273PW | SN74LS273PW |
| SN74LS273PWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273PWE4 | SN74LS273PWE4 |
| SN74LS273PWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273PWG4 | SN74LS273PWG4 |
| SN74LS273PWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273PWR | SN74LS273PWR |
| SN74LS273PWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273PWRE4 | SN74LS273PWRE4 |
| SN74LS273PWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS273PWRG4 | SN74LS273PWRG4 |
SN74LS273 应用技术支持与电子电路设计开发资源下载
- SN74LS273 数据资料 dataSheet 下载.PDF
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