NAND gate S-R enabled latch

Chapter 7.4 NAND gate S-R enabled latch

Lessons In Electric Circuits Volume VI – Experiments Book
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Summary of Contents

Lessons In Electric Circuits Volume VI – Experiments Book

  • 7.4. NAND GATE S-R ENABLED LATCH3417.4NAND gate S-R enabled latchPARTS AND MATERIALS• 4011 quad NAND gate (Radio Shack catalog # 276-2411)• Eight-position DIP switch (Radio Shack catalog # 275-1301)• Ten-segment bargraph LED (Radio Shack catalog # 276-081)• One 6 volt battery• Three 10 kΩ resistors• Two 470 Ω resistorsCaution! The 4011 IC is CMOS, and therefore sensitive to static electricity!CROSS-REFERENCESLessons In Electric Circuits, Volume 4, chapter 3: ”Logic Gates”Lessons In Electric Circuits, Volume 4, chapter 10: ”Multivibrators”LEARNING OBJECTIVES• Principle and function of an enabled latch circuitSCHEMATIC DIAGRAM6 V10kΩ470ΩSet Enable Reset10kΩQQ1/4 40111/4 40111/4 40111/4 4011(power connections to gates notshown for simplicity)ILLUSTRATION