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The MAX865 is a CMOS charge-pump DC-DC convert- er in an ultra-small µMAX package. It produces positive and negative outputs from a single positive input, and requires only four capacitors. The charge pump first doubles the input voltage, then inverts the doubled volt- age. This datasheet is subject to change without notice. THE PRODUCT DESCRIBED HERE IN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com ... 3、7404：六组反向器。 4、7400：四组与门。 5、74ls573：八位三状态输出d触发器。 6、uln2003：高耐压、大电流达林顿陈列，由七个硅npn达林顿管组成。 7、74ls244：3态8位缓冲器，一般用作总线驱动器，没有锁存的功能。 The MAX220–MAX249 are offered in 26 different packages with temperatures from 0 to +70°C up to -55°C to +125°C. See ordering information table at the end of the data sheet for all package and temperature options. The MAX705–MAX708/MAX813L microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components. DM7400 Quad 2-Input NAND Gates Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N14A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and 74123 Dual Retriggerable One-shot with Clear and Complementary Outputs DM74123 Dual Retriggerable One-Shot with Clear and Complementary Outputs. The is a dual retriggerable monostable multivibrator capable of generating output pulses from a few nano-seconds to extremely long duration to 100% duty cycle.