SN74LS299 通用移位/存储寄存器
These Schottky TTL eight-bit universal registers feature multiplexed inputs/outputs to achieve full eight-bit data handling in a single 20-pin package. Two function-select inputs and two output-control inputs can be used to choose the modes of operation listed in the function table.
Synchronous parallel loading is accomplished by taking both function-select lines, S0 and S1, high. This places the three-state outputs in a high-impedance state, which permits data that is applied on the input/output lines to be clocked into the register. Reading out of the register can be accomplished while the outputs are enabled in any mode. A direct overriding input is provided to clear the register whether the outputs are enabled or off
| SN74LS299 | |
| Technology Family | LS |
| Rating | Catalog |
SN74LS299 特性
- Multiplexed Inputs/Outputs Provide Improved Bit Density
- Four Modes of Operations:
- Hold (Store)
- Shift Left
- Shift Right
- Load Data
- Operates with Outputs Enabled or at High Z
- 3-State Outputs Drive Bus Lines Directly
- Can Be Cascaded for N-Bit Word Lengths
- SN54LS323 and SN74LS323 Are Similar But Have Synchronous Clear
- Applications:
- Stacked or Push-Down Registers Buffer Storage, and Accumulator Registers
SN74LS299 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74LS299DW | ACTIVE | 0 to 70 | 3.20 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS299DWE4 | ACTIVE | 0 to 70 | 3.20 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS299DWG4 | ACTIVE | 0 to 70 | 3.20 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LS299N | ACTIVE | 0 to 70 | 2.90 | 1ku | PDIP (N) | 20 | 20 | TUBE | |
| SN74LS299NE4 | ACTIVE | 0 to 70 | 2.90 | 1ku | PDIP (N) | 20 | 20 | TUBE |
SN74LS299 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 |
| SN74LS299DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS299DW | SN74LS299DW |
| SN74LS299DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS299DWE4 | SN74LS299DWE4 |
| SN74LS299DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS299DWG4 | SN74LS299DWG4 |
| SN74LS299N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS299N | SN74LS299N |
| SN74LS299N3 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS299NE3 | SN74LS299N3 |
| SN74LS299NE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS299NE4 | SN74LS299NE4 |
SN74LS299 应用技术支持与电子电路设计开发资源下载
- SN74LS299 数据资料 dataSheet 下载.PDF
- TI 德州仪器触发器/锁存器/寄存器产品选型与价格 . xls
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
- TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
- Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
- CMOS Power Consumption and CPD Calculation (PDF 89 KB)
- Designing With Logic (PDF 186 KB)
- Live Insertion (PDF 150 KB)
- Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
- Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)
