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Click here for more information74LV123DB
Dual retriggerable monostable multivibrator with reset
74LV123是低压硅栅CMOS器件,与74HC123;74HCT123针脚和功能兼容。该器件是双可再触发单稳态多谐振荡器,输出脉冲宽度控制通过三种方法实现:
- 基本脉冲时间通过选择外部电阻(REXT)和电容(CEXT)进行编程。
- 一旦触发,基本输出脉冲宽度可通过再触发门控低电平有效边沿输入(nA)或高电平有效边沿输入(nB)进行扩展。重复这一过程,就可按需形成输出脉冲周期(nQ为高电平,nQ 为低电平)。
- 或者,输出延迟可通过输入nRD上的低电平沿随时终止,其还可抑制触发。
nA和nB输入中的施密特触发器操作使电路高度容许较慢的输入上升和下降时间。
Alternatives
Features and benefits
- 最适合低压应用:1.0 V至5.5 V
- 接受介于VCC = 2.7 V和VCC = 3.6 V之间的TTL输入电平
- VCC = 3.3 V且Tamb = 25 °C时的典型输出地弹:< 0.8 V
- VCC = 3.3 V且Tamb = 25 °C时的典型高电平输出电压(VOH)欠冲:> 2 V
- 从高电平有效或低电平有效输入触发的直流
- 针对占空系数高达100 %的极长脉冲可再触发
- 直接复位可终止输出脉冲
- 除复位输入外的所有输入上的施密特触发器动作
参数类型
型号 | Product status | Package name |
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74LV123DB | End of life | SSOP16 |
PCB Symbol, Footprint and 3D Model
Model Name | 描述 |
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封装
下表中的所有产品型号已停产。参见表 停产信息 了解更多信息。
型号 | 可订购的器件编号,(订购码(12NC)) | 状态 | 标示 | 封装 | 外形图 | 回流焊/波峰焊 | 包装 |
---|---|---|---|---|---|---|---|
74LV123DB | 74LV123DB,118 (935210260118) |
Withdrawn / End-of-life | LV123 |
SSOP16 (SOT338-1) |
SOT338-1 |
SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE |
Not available |
74LV123DB,112 (935210260112) |
Obsolete | LV123 | Not available |
文档 (7)
文件名称 | 标题 | 类型 | 日期 |
---|---|---|---|
74LV123 | Dual retriggerable monostable multivibrator with reset | Data sheet | 2024-01-15 |
Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
SSOP16_SOT338-1_mk | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Marcom graphics | 2017-01-28 |
SOT338-1 | plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm body | Package information | 2022-06-20 |
SSOP-TSSOP-VSO-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
lv | lv Spice model | SPICE model | 2013-05-07 |
SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
支持
如果您需要设计/技术支持,请告知我们并填写 应答表 我们会尽快回复您。
模型
文件名称 | 标题 | 类型 | 日期 |
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lv | lv Spice model | SPICE model | 2013-05-07 |
PCB Symbol, Footprint and 3D Model
Model Name | 描述 |
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How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.