CMOS integrated logic gate circuit

TTL gate circuits with other functions
1. Open collector NAND gate (OC gate)
1. Working principle of OC gate 2.
Application of OC gate
2. AND/NOR gate
3. Three-state output gate (TSL gate)
1. Working principle of three-state output gate
2. Application of three-state output gate

3.3.4 TTL digital integrated circuit series
1. CT54 series and CT74 series
2. Subseries of TTL integrated logic gate circuits
3. Comparison of performance of various series of TTL integrated logic gate circuits

3.3.5 Precautions for using TTL integrated logic gates
1. Elimination of power supply voltage and power supply interference
2. Connection of output terminals
3. Processing of idle input terminals
4. Issues to be noted in circuit installation, wiring and welding
5. Issues to be noted in debugging

Homework: P87 3.4

§2-5 MOS gate circuit
CMOS is widely used, simple in process, strong in anti-interference ability, high in integration, low in power consumption, low in price High 5V Low 0V IG (control electrode)

1. MOS Inverter

1. MOS tube switching characteristics

⑴、NMOS

⑤. Large output range (up to the sky and down to the ground) VOH=VDD, VOL=0V

1. NAND gate: driver tube in series, load tube in parallel (picture omitted)

②Single and double throw control switch

3.3.4 TTL digital integrated circuit series

400 series (ordinary CMOS tpd about 45nS power consumption <5mw>
such as code 4001 for four 2-input NOR gates
4069 for six inverters
4016 for six bidirectional switches
High-speed CMOS 74HC series (can replace TTL circuits) tpd 1mw

3.3.5 Notes on the use of TTL integrated logic gates

1. Elimination of power supply voltage and power supply interference
2. Connection of output terminals
3. Treatment of idle input terminals
4. Issues to be noted in circuit installation, wiring and welding
5. Issues to be noted in debugging