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, IC卡時鐘實測數(shù)值 ______________________________________________________________________ VCC__/
_____________________________________________________________________ VPP___/ t12 :<---------------->: :__________________: RST_____/: \_______________________________________________ : : : t10 t11 : t15 t16 :<---->: :<---->: t14 :<---->: :<---->: : ____ : :<---->: :______: : : _______ CLK_____________:/ 1 \:______:______:/ 2 \:______:/ 3 \_______ : : : t13 : t17 :<---->: :<---->: _____________________________ :______________ :______________ ___ I/O___//////////////////////////////\:_______1______X-X_______2_______X-X___
5us <= t10 10us <= t14 <= 100us Clock low after RST 5us <= t11 10us <= t15 <= 50us Clock High 50us <= t12 ........ Reset High 10us <= t16 <= 100us Clock Low t13 <= 10us Propagation delay t17 <= 10us Propagation delay |