问题描述：
英语翻译
D.C.Characteristics
Notes:1.Under steady state( non-transient)conditions,IOL must be externally limited as follows:
Maximum IOL per p6rt pin:20mA
Maximum total IOL for all output pins:80mA
If IOL exceeds the test condition,VOL may exceed the related specificatiom.Pins are not guaranteed to sink current greater than the listed test conditions.
2.Minimum VCC for power Down is 2V.
D.C.Characteristics
Notes:1.Under steady state( non-transient)conditions,IOL must be externally limited as follows:
Maximum IOL per p6rt pin:20mA
Maximum total IOL for all output pins:80mA
If IOL exceeds the test condition,VOL may exceed the related specificatiom.Pins are not guaranteed to sink current greater than the listed test conditions.
2.Minimum VCC for power Down is 2V.
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