SN74ALS259 八路可寻址锁存器
These 8-bit addressable latches are designed for general-purpose storage applications in digital systems. Specific uses include working registers, serial-holding registers, and active-high decoders or demultiplexers. They are multifunctional devices capable of storing single-line data in eight addressable latches and being a 1-of-8 decoder or demultiplexer with active-high outputs.
Four distinct modes of operation are selectable by controlling the clear (
) and enable (G\) inputs as shown in the function table. In the addressable-latch mode, data at the data-in terminal is written into the addressed latch. The addressed latch follows the data input with all unaddressed latches remaining in their previous states
| SN74ALS259 | |
| Voltage Nodes(V) | 5 |
| Vcc range(V) | 4.5 to 5.5 |
| Input Level | TTL |
| Output Level | TTL |
| Output Drive(mA) | -0.4/8 |
| Output | 2S |
| No. of Bits | 8 |
| th(ns) | 0 |
| tpd max(ns) | 19 |
| tsu(ns) | 15 |
| Rating | Catalog |
| Technology Family | ALS |
SN74ALS259 特性
- 8-Bit Parallel-Out Storage Register Performs Serial-to-Parallel Conversion With Storage
- Asynchronous Parallel Clear
- Active-High Decoder
- Enable/Disable Input Simplifies Expansion
- Expandable for n-Bit Applications
- Four Distinct Functional Modes
- Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs
SN74ALS259 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 |
| SN74ALS259D | ACTIVE | 0 to 70 | 2.70 | 1ku | SOIC (D) | 16 | 40 | TUBE | ALS259 |
| SN74ALS259DE4 | ACTIVE | 0 to 70 | 2.70 | 1ku | SOIC (D) | 16 | 40 | TUBE | ALS259 |
| SN74ALS259DG4 | ACTIVE | 0 to 70 | 2.70 | 1ku | SOIC (D) | 16 | 40 | TUBE | ALS259 |
| SN74ALS259DR | ACTIVE | 0 to 70 | 2.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | ALS259 |
| SN74ALS259DRE4 | ACTIVE | 0 to 70 | 2.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | ALS259 |
| SN74ALS259DRG4 | ACTIVE | 0 to 70 | 2.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | ALS259 |
| SN74ALS259N | ACTIVE | 0 to 70 | 2.45 | 1ku | PDIP (N) | 16 | 25 | TUBE | SN74ALS259N |
| SN74ALS259NE4 | ACTIVE | 0 to 70 | 2.45 | 1ku | PDIP (N) | 16 | 25 | TUBE | SN74ALS259N |
SN74ALS259 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 |
| SN74ALS259D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS259D | SN74ALS259D |
| SN74ALS259DE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS259DE4 | SN74ALS259DE4 |
| SN74ALS259DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS259DG4 | SN74ALS259DG4 |
| SN74ALS259DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS259DR | SN74ALS259DR |
| SN74ALS259DRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS259DRE4 | SN74ALS259DRE4 |
| SN74ALS259DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74ALS259DRG4 | SN74ALS259DRG4 |
| SN74ALS259N | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74ALS259N | SN74ALS259N |
| SN74ALS259NE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | SN74ALS259NE4 | SN74ALS259NE4 |
SN74ALS259 应用技术支持与电子电路设计开发资源下载
- SN74ALS259 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)
