Part Number:SN74ALS244C
Qiuli Guo:
TI STORE购买的 SN74HC11N有相同问题
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Kailyn Chen:
您好,如果是estore购买的,是没问题的,您看下这篇FAQ:关于针脚为什么看起来是被氧化了:
Roughened leadframes are an improvement to the older leadframe technology and provide improved solder adhesion.
这是工艺上的一种提高,有助于提高焊接的粘附度。
https://e2e.ti.com/support/logic-group/logic/f/logic-forum/718449/faq-why-do-the-leadframes-look-strongly-oxidized-or-corroded