The simplest, non-trivial logic gate that satisfies rule 1 is the logic gate composed of a single NFET (to pull the output down) and a single PFET (to pull the output up). This arrangement was already described in Figure 2.6. However, the configuration of Figure 2.6(e) violates rule 2 and the configuration of Figure 2.6(d) violates rule 3.

2020年5月19日 · Field-effect transistors of the MOS (Metal-Oxide-Semiconductor) variety, or MOSFETs, are the semiconductor of choice for common high voltage and high current, voltage-driven switching applications. They have become much more popular than their current-driven predecessor, the BJT (Bipolar Junction Transistor).

2013年1月5日 · Depending on the MOSFETs used (specifically their threshold voltage), this problem might be solvable, but in practice the standard solution is much easier despite the extra stage. This is why earlier logic families used NAND gates instead of AND gates - they eliminated the inverter stage and inverted the logic levels for the second stage.

Use pFETs to pass logic 1. Use nFETs to pass logic 0. Construct the nFET network using only nFETs and the pFET network using only pFETs. If the output is 1, the pFET network connects nFET network disconnects and the output. If the output is 0, the nFET network connects pFET network disconnects and the output. pFETs are ON when the inputs are 0.

FETs have three terminals: source, gate, and drain. FETs control the current by the application of a voltage to the gate, which in turn alters the conductivity between the drain and source. FETs are also known as unipolar transistors since they involve single-carrier-type operation.

2023年4月14日 · By controlling the gate to source voltage, PMOS and NMOS transistor can be used as a switch. And they can be used to design a logic gate. CMOS logic uses both NMOS and PMOS transistors. The PMOS transistors are used as pull-up network and NMOS transistors are used as pull-down network.

In this blog post, we will explore four essential logic gates: NOT, NAND, NOR, and XOR. We'll also discuss their importance as universal gates and demonstrate how to construct AND, OR, and XOR gates using them.

2007年4月26日 · 因為 2-input logic, 以 NAND, NOR gate 作出來的 area 最小 若只要 AND, OR, 就加 inverter

2024年6月6日 · AOI (and-or-invert) and OAI (or-and-invert) gates are two basic configurations that can be realized using CMOS logic. The CMOS realization of these two types of gates is shown below. Note that the two gates are dual to each other.

或门（OR gate），又称或电路、逻辑和电路。 如果几个条件中，只要有一个条件得到满足，某事件就会发生，这种关系叫做“或”逻辑关系。 具有“或”逻辑关系的电路叫做或门。 或门有多个输入端，一个输出端，只要输入中有一个为高电平时（逻辑“1”），输出就为高电平（逻辑“1”）；只有当所有的输入全为低电平（逻辑“0”）时，输出才为低电平（逻辑“0”）。 或门是实现逻辑加的电路,又称逻辑和电路,简称或门。 此电路有两个以上输入端,一个输出端。 只要有一个或几个输入端是 …