NA555 NA555、NE555、SA555、SE555

These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low

NA555 NE555 SA555
Frequency (Max) (MHz)   0.5     0.5    
VCC (Min) (V) 4.5     4.5     4.5    
VCC (Max) (V) 16     16     16    
Operating Temperature Range (C) -40 to 105     0 to 70     -40 to 85    
Pin/Package 8PDIP, 8SOIC     8PDIP, 8SO, 8SOIC, 8TSSOP 8PDIP, 8SOIC    
Approx. Price (US$) 0.10 | 1ku     0.10 | 1ku     0.11 | 1ku    
NA555 特性
NA555 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
NA555D ACTIVE -40 to 85 0.12 | 1ku SOIC (D) | 8 75 | TUBE  
NA555DG4 ACTIVE -40 to 85 0.12 | 1ku SOIC (D) | 8 75 | TUBE  
NA555DR ACTIVE -40 to 85 0.10 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
NA555DRG4 ACTIVE -40 to 85 0.10 | 1ku SOIC (D) | 8 2500  
NA555P ACTIVE -40 to 85 0.12 | 1ku PDIP (P) | 8 50 | TUBE  
NA555PE4 ACTIVE -40 to 85 0.12 | 1ku PDIP (P) | 8 50 | TUBE  
NA555 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
NA555D Green (RoHS & no Sb/Br)   CU NIPDAU   Level-1-260C-UNLIM NA555D NA555D
NA555DG4 Green (RoHS & no Sb/Br)   CU NIPDAU   Level-1-260C-UNLIM NA555DG4 NA555DG4
NA555DR Green (RoHS & no Sb/Br)   CU NIPDAU   Level-1-260C-UNLIM NA555DR NA555DR
NA555DRG4 Green (RoHS & no Sb/Br)   CU NIPDAU   Level-1-260C-UNLIM NA555DRG4 NA555DRG4
NA555P Pb-Free (RoHS)   CU NIPDAU   N/A for Pkg Type NA555P NA555P
NA555PE4 Pb-Free (RoHS)   CU NIPDAU   N/A for Pkg Type NA555PE4 NA555PE4
NA555 应用技术支持与电子电路设计开发资源下载
  1. NA555 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器Timers产品选型与价格 . xls
  3. 简化的 LDO PSRR 测量 (zhca089.HTM, 8 KB)