【文章內(nèi)容簡介】
state conditions (nontransient), the following must be observed: TQFP and MLF Package: 1] The sum of all IOH, for all ports, should not exceed 400 mA. 2] The sum of all IOH, for ports A0 A7, G2, C3 C7 should not exceed 300 mA. 3] The sum of all IOH, for ports C0 C2, G0 G1, D0 D7, XTAL2 should not exceed 150 mA. 4] The sum of all IOH, for ports B0 B7, G3 G4, E0 E7 should not exceed 150 mA. 5] The sum of all IOH, for ports F0 F7, should not exceed 200 mA. If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current greater than the listed test condition. 此段大家自己讀,主要是說