说明：  AH8903是四位单芯片的微处理器，内部集成6.5k×16bits MASK ROM，188×4bits RAM，8级环形堆栈，5bits timer, 5bits base timer,专用的电阻/频率转换电路，可编程单端BUZZER输出，EL驱动和最大可驱动140点的LCD驱动器。高效低功耗，适用如万年历、计算器、LCD GAMES等带LCD显示的电子产品
(Ah8903 is a four bit single chip microprocessor, the internal integration of 6.5k * 16bits mask * 4bits ROM, 188 ram, 8 5bits timer, 5bits ring stack, base timer, special resistance / frequency conversion circuit, programmable single ended output buzzer, El driver and the maximum driving 140 point high efficiency and low power LCD drive. If applicable, calendar, calculator, electronic products such as LCD games with LCD display)