KEZA128 DC特性

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Symbol Descriptions Min Typical 1 Max Unit
— Operating voltage — 2.7 — 5.5 V
V OH Output
high
voltage
All I/O pins, except PTA2
and PTA3, standard-drive
strength
5 V, I load = –5 mA V DD – 0.8 — — V
3 V, I load = –2.5 mA V DD – 0.8 — — V
High current drive pins,
high-drive strength 2
5 V, I load = –20 mA V DD – 0.8 — — V
3 V, I load = –10 mA V DD – 0.8 — — V
I OHT Output
high
current
Max total I OH for all ports 5 V — — –100 mA
3 V — — –60
V OL Output
low
voltage
All I/O pins, standard-drive
strength
5 V, I load = 5 mA — — 0.8 V
3 V, I load = 2.5 mA — — 0.8 V
High current drive pins,
high-drive strength 2
5 V, I load =20 mA — — 0.8 V
3 V, I load = 10 mA — — 0.8 V

请教下 I load =20 mA和I load = –20 mA的负号代表什么？

最佳答案

I/O作为输入/输出时，电流方向。

• Splore.Liu
• 发表于2018-09-30
• 详细答案>>

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Splore.Liu

I/O作为输入/输出时，电流方向。