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关于输入低电平电压最大0.5V的疑惑

Other Parts Discussed in Thread: CC2541

大家好,CC2541手册上说:

DC CHARACTERISTICS
TA = 25°C, VDD = 3 V
PARAMETER                       MAX    UNIT
Logic-0 input voltage          0.5     V
Logic-1 input voltage          2.4     V

那是不是用8050三极管隔离输入的话,无法得到可靠的0电平喽?????因为Vce在饱和导通时电压有0.6V