[参考译文] SN74LV123A：脉冲持续时间与计算不匹配

嗨，Hans，

您的计算是正确的-您预计将从真实设备获得1us 脉冲。 我看到你正在使用模拟。 您是否已阅读模拟模型注释？

我猜测您正在使用我们网站上提供的 PSpice 模型。 其中包括以下注释：

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* Notes: 
* 1. The MODEL IS INTENDED FOR 5V OPERATION AND REFLECTS THE PULSE DURATION 
*    AS SHOWN IN FIGURE 6 OF THE DATA SHEET.
* 2. THE MODEL MAY NOT MEET THE OTHER DEVICE PARAMETERS. 
* 3. THIS MODEL IS INTENDED FOR USE IN CADENCE V16.2 AND ABOVE WITH 
*    AUTOCONVERGE ENABLED. IF AUTOCONVERGE IS NOT USED, THE SIMULATION 
*    WILL LIKELY HAVE CONVERGENCE ERRORS.
* 4. THE VALUES OF R_EXT AND C_EXT IN THE SCHEMATIC MUST BE ENTERED AS 
*    PARAMETERS VIA THE PARAMS STATEMENT IN THE .SUBCKT LINE BELOW. 
*    IF THIS IS NOT DONE, THE MODEL WILL GIVE INCORRECT RESULTS.
* 
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