including segment signal output pins 包括段信号输出的针脚
The latch can hold 8 bits of information, and these 8 bits are represented on the output pins.
闭锁可以保持8个比特的信息，这8个比特在输出管脚得以显示。
An activity frame represents current activity and allows adding activity parameters by using input or output pins.
活动框架代表了当前的状态，并通过使用输入和输出针脚来允许添加活动参数。
Additional daughterboards can be added if necessary through five general-purpose I/O pins and four high-current output pins.
必要时，还可以通过 5 个通用 I/O 插脚和 4 个高电流输出插脚增加更多的子板。
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