cmos circuit design

[jidan]

I want to know the basic information about cmos circuit design

1)what type of elements are used in cmos circuit
I know only n mos and p mos transistor

2)how element are interconnected in cmos circuit

3) when we design c mos circuit layout what basic should I know (layout design rule)

thanks for every help

 

[crutschow]

1) You answered you own question.

2) It depends upon what type CMOS circuit it is (NAND, NOR, Flip-Flop, Counter, etc.)

3) Keep all connections at short as possible.
Have a good circuit ground (preferably a ground plane if it's high speed CMOS).
Decouple all ICs between V+ and ground with a 0.1uF ceramic cap.
Connect all unused inputs to ground.

 

[jidan]

1) You answered you own question.

2) It depends upon what type CMOS circuit it is (NAND, NOR, Flip-Flop, Counter, etc.)

3) Keep all connections at short as possible.
Have a good circuit ground (preferably a ground plane if it's high speed CMOS).
Decouple all ICs between V+ and ground with a 0.1uF ceramic cap.
Connect all unused inputs to ground.

1)we can use only transistor or may be like capacitor resistor
2) in analog circuit we interconnect component throw al wire how does component interconnect in cmos circuit

 

[audioguru]

The datasheet of an IC shows its schematic. The schematic shows component interconnects.

 

[kubeek]

i guess he probably means chip-level design

 

[crutschow]

1)we can use only transistor or may be like capacitor resistor
2) in analog circuit we interconnect component throw al wire how does component interconnect in cmos circuit

1) For digital CMOS only transistors are used. In analog CMOS, resistors and capacitors may be used on-chip.

2) The on-chip connections are typically aluminum but I believe some high speed digital circuits use some type of copper to minimize resistance.

 

[jidan]

The datasheet of an IC shows its schematic. The schematic shows component interconnects.

I googled AND gate Cmos IC and saw datasheet CD4073B, MC74VHC1GT08 but I didn't understood how the component are interconnected with each other

 

[kubeek]

well, lets have a look - which part of this datasheet dont you understand? https://www.ti.com/lit/ds/schs057c/schs057c.pdf

 

[audioguru]

Why don't you have a teacher and text book to teach you this stuff?

 

[jidan]

thanks crustchow for detail explain thank you to all for giving time

 

[jidan]

Why don't you have a teacher and text book to teach you this stuff?

because i have lot of teacher like you that teach me very basic things whenever I confused I ask the question and someone give the answer