Part #: 74121. Download. File Size: 670Kbytes. Page: 15 Pages. Description: MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS. Manufacturer: Texas Instruments.

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production.

TI 的 SN74121 是一款 具有施密特触发输入的单稳多频振荡器。 查找参数、订购和质量信息.

TI’s SN74121 is a Monostable multivibrator with Schmitt-trigger inputs. Find parameters, ordering and quality information.

单稳态触发器74121在使用时，有两种不同的连接方法。 芯片的10、11引脚之间接定时电容，若采用电解电容时，则电容的正极端接10脚。 根据输出脉冲宽度的要求，定时电阻可以采用芯片内部的电阻或者外界电阻。

SN74121N由TI (德州仪器)设计生产，立创商城现货销售，正品保证，参考价格￥25.7712，封装为DIP-14。 商城还提供SN74121N专业中文资料、详细参数、引脚图、PCB焊盘图，典型应用图，Datasheet数据手册等资料查询和免费下载。 参数：逻辑类型：单稳态；工作电压：4.75V~5.25V；通道数：2；传播延迟 (tpd)：45ns；灌电流 (IOL)：16mA；拉电流 (IOH)：400uA；系列：7400；工作温度：0℃~+70℃。

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production.

Description: MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS. Manufacturer: Texas Instruments.

54121/74121 单稳态触发器（有施密特触发器） 简要说明： 54/74121为具有施密特触发器输入的单稳态触发器，其主要电特性的典型值如下： 型号 输出脉冲范围 PD CT54121/CT74121 40ns->28s 90mW 正触发输入端（B）采用了施密特触发器，因此，有较高的抗 扰度，典型值为1.2V。

SN74121N – Monostable Multivibrator 45 ns 14-PDIP from Texas Instruments. Pricing and Availability on millions of electronic components from Digi-Key Electronics.