文档预览： 1 7 1 2 6 13 10 9 15 11 12 14 3 5 4 A B C D LT RBI BI/RBO OA OB OC OD OE OF OG 7447 N U2 A1 ADC VIN VREF-VREF+ SOC OE EOC D0 D1 D2 D3 D4 D5 D6 D7 U1 SEVEN_SEG_COM_K ABCDEFG Com CHAPTER 9-Part 3: DIGITAL ... 点击下载

文档预览： 54LS160/74LS160 LSTTL 型同步十进制计数器 (直接清零) 特点用于快速计数的内部超前进位 用于 n 位级联的进位输出 同步可编程序 有置数控制线 二极管箝位输入 ... 点击下载

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文档预览： 加法计数器74LS160可逆计数器74LS190计数器应用级联法置数法移位寄存器型计数器环形计数器扭环形计数器脉冲波的产生和整形脉冲参数脉冲周期T... 点击下载

文档预览： 51 Figure 9--44 A divide-by-40,000 counter using 74HC161 4-bit binary counters. Note that each of the parallel data inputs is shown in binary order (the right ... 59 Figure 9--52 Logic diagram of typical divide-by-60 counter using 74LS160A ... 点击下载

文档预览： Objectives Understand the operation and characteristics of synchronous and asynchronous counters. Construct counters with MOD numbers less than 2N. Identify IEEE/ANSI symbols used in IC counters and registers. Construct both up and down ... 点击下载

文档预览： 52 Figure 9--44 A divide-by-40,000 counter using 74HC161 4-bit binary counters. Note that each of the parallel data inputs is shown in binary order (the right ... 60 Figure 9--52 Logic diagram of typical divide-by-60 counter using 74LS160A ... 点击下载

文档预览： SERIE 74LS00: MOSFETS: SERIE 74HC00: J-FETs: PUT/UJT: DIP-16 DIP-16 DIP-16 DIP-14 DIP-20 74LS195 74LS221 74LS240 74LS241 74LS244 74LS245 74LS247 74LS251 74LS257 74LS259 74LS266 74LS273 DIP-16 DIP-20 DIP-20 DIP-16 DIP-16 ... 点击下载

文档预览： All rights reserved.1. 非同步式计数器的运作例题9-1 如图9-5所示为一个4...All rights reserved.2. 同步式计数器的运作Figure A--26 The 74LS160 ... 点击下载

文档预览： 1CP Q0 Q1 Q2 Q3 CS1 S2 74LS160CP D0 D1 D2 D3 LD RDFA BC DVCCVCC 4A 4B 4Y 3A 3B 3Y1A 1B 1Y 2A 2B 2Y 地... 点击下载