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SN74LS122的基本参数
  • 制造厂商:TI
  • 产品类别:逻辑和电压转换
  • 技术类目:专用逻辑 IC - 单稳多谐振荡器(单稳态)
  • 功能描述:可重触发单稳态多谐振荡器
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SN74LS122的产品详情:

These d-c triggered multivibrators feature output pulse-duration control by three methods. The basic pulse time is programmed by selection of external resistance and capacitance values (see typical application data). The '122 and 'LS122 have internal timing resistors that allow the circuits to be used with only an external capacitor, if so desired. Once triggered, the basic pulse duration may be extended by retriggering the gated low-level-active (A) or high-level-active (B) inputs, or be reduced by use of the overriding clear. Figure 1 illustrates pulse control by retriggering and early clear.

The 'LS122 and 'LS123 are provided enough Schmitt hysteresis to ensure jitter-free triggering from the B input with transition rates as slow as 0.1 millivolt per nanosecond.

The Rint is nominally 10 k for '122 and 'LS122.

SN74LS122的优势和特性:
  • D-C Triggered from Active-High or Active-Low Gated Logic Inputs
  • Retriggerable for Very Long Output Pulses, Up to 100% Duty Cycle
  • Overriding Clear Terminates Output Pulse
  • '122 and 'LS122 Have Internal Timing Resistors
SN74LS122的参数(英文):
  • Number of channels (#)
  • 2
  • Supply voltage (Min) (V)
  • 4.75
  • Supply voltage (Max) (V)
  • 5.25
  • Technology Family
  • LS
  • Input type
  • Bipolar
  • Output type
  • Push-Pull
  • ICC (uA)
  • 20000
  • IOL (Max) (mA)
  • 8
  • IOH (Max) (mA)
  • -0.4
  • Features
  • Standard speed (tpd > 50ns), Retriggerable
SN74LS122具体的完整产品型号参数及价格(美元):

SN74LS122的完整型号有:SN74LS122D、SN74LS122DR、SN74LS122N、SN74LS122NSR,以下是这些产品的关键参数及官网采购报价:

SN74LS122D,工作温度:0 to 70,封装:SOIC (D)-14,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74LS122D的批量USD价格:0.427(1000+)

SN74LS122DR,工作温度:0 to 70,封装:SOIC (D)-14,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74LS122DR的批量USD价格:0.356(1000+)

SN74LS122N,工作温度:0 to 70,封装:PDIP (N)-14,包装数量MPQ:25个,MSL 等级/回流焊峰值温度:N/A for Pkg Type,引脚镀层/焊球材料:NIPDAU,TI官网SN74LS122N的批量USD价格:0.409(1000+)

SN74LS122NSR,工作温度:0 to 70,封装:SO (NS)-14,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN74LS122NSR的批量USD价格:0.392(1000+)

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SN74LS122的评估套件:

14-24-LOGIC-EVM — 支持 14 到 24 引脚 PW、DB、D、DW、NS、DYY 和 DGV 封装的通用逻辑 EVM

该 EVM 设计用于支持采用 14 至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。

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