SN74LS279A 四类 /S-/R 锁存器
The ’279 offers 4 basic S\-R\ flip-flop latches in one 16-pin, 300-mil package. Under conventional operation, the S\-R\ inputs are normally held high. When the S\ input is pulsed low, the Q output will be set high. When R\ is pulsed low, the Q output will be reset low. Normally, the S\-R\ inputs should not be taken low simultaneously. The Q output will be unpredictable in this condition.
| SN74LS279A | |
| Voltage Nodes(V) | 5 |
| Vcc range(V) | 4.75 to 5.25 |
| Input Level | TTL |
| Output Level | TTL |
| Output Drive(mA) | -0.4/8 |
| Output | 2S |
| No. of Bits | 4 |
| tpd max(ns) | 22 |
| Rating | Catalog |
| Technology Family | LS |
SN74LS279A 特性
- Package Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
- Dependable Texas Instruments Quality and Reliability
SN74LS279A 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 |
| SN74LS279AD | ACTIVE | 0 to 70 | 2.70 | 1ku | SOIC (D) | 16 | 40 | TUBE | LS279A |
| SN74LS279ADE4 | ACTIVE | 0 to 70 | 2.70 | 1ku | SOIC (D) | 16 | 40 | TUBE | LS279A |
| SN74LS279ADG4 | ACTIVE | 0 to 70 | 2.70 | 1ku | SOIC (D) | 16 | 40 | TUBE | LS279A |
| SN74LS279ADR | ACTIVE | 0 to 70 | 2.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | LS279A |
| SN74LS279ADRE4 | ACTIVE | 0 to 70 | 2.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | LS279A |
| SN74LS279ADRG4 | ACTIVE | 0 to 70 | 2.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | LS279A |
| SN74LS279AN | ACTIVE | 0 to 70 | 2.45 | 1ku | PDIP (N) | 16 | 25 | TUBE | SN74LS279AN |
| SN74LS279ANE4 | ACTIVE | 0 to 70 | 2.45 | 1ku | PDIP (N) | 16 | 25 | TUBE | SN74LS279AN |
SN74LS279A 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 |
| SN74LS279AD | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS279AD | SN74LS279AD |
| SN74LS279ADE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS279ADE4 | SN74LS279ADE4 |
| SN74LS279ADG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS279ADG4 | SN74LS279ADG4 |
| SN74LS279ADR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS279ADR | SN74LS279ADR |
| SN74LS279ADRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS279ADRE4 | SN74LS279ADRE4 |
| SN74LS279ADRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LS279ADRG4 | SN74LS279ADRG4 |
| SN74LS279AN | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS279AN | SN74LS279AN |
| SN74LS279ANE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74LS279ANE4 | SN74LS279ANE4 |
SN74LS279A 应用技术支持与电子电路设计开发资源下载
- SN74LS279A 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)