Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

16
Pass Transistor Logic EMT 251

Transcript of Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Page 1: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Pass Transistor Logic

EMT 251

Page 2: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Pass Transistor LogicIn

puts Switch

Network

OutOut

A

B

B

B

Page 3: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Pass Transistor Logic

Gate is static – a low-impedance path exists to both supply rails under all circumstances

NMOS transistors only No static power consumption Ratioless (W/L) Bidirectional (versus undirectional)

Page 4: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Complementary Pass Transistor Logic (CPL)

Dual-rail form of pass transistor logic Avoids need for ratioed feedback Optional cross-coupling for rail-to-rail

swing

Page 5: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Example: AND/NAND gate

Page 6: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Example: OR/NOR gate

Page 7: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Example : XOR/XNOR gate

Page 8: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Cascaded Technique

Wrong!!

Correct!!

Page 9: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Draw a CMOS circuit based on this logic equation. Use a minimum number of transistors.

Page 10: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Transmission Gate Logic

EMT 251

Page 11: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Transmission Gate Logic (TG)

Most widely used solution Use both NMOS and PMOS in parallel Can be used for logic circuit implementation Full swing bidirectional switch controlled by the

gate signal (strong ‘0’ and ‘1’)

P

N

A(Vin ) B (Vout )

s

s

A (Vin ) B (Vout )

s

s

Page 12: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

The MOS transistor pass gate

1 1

0 passes a good 0

1

0 0

01

passes a bad 1

passes a bad 0 passes a good 1

nMOS

pMOS Near Short CCT Resistance small

Page 13: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

TG as a Tristate Buffer

B=A(or Z when S=0)

s

A

A(Vin) S Tn Tp B (Vout)0 0 off off Z (high impedance state (blocks logic flow))

0 1 on off 0 (nMOS passes strong 0, pMOS off when Vout<Vthp)

1 0 off off Z (high impedance state (blocks logic flow))

1 1 off on 1 (pMOS passes strong 1, nMOS off when Vout>Vdd-Vthn )

In steady state

Page 14: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Example : OR gate

Page 15: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Example : AND gate

Page 16: Pass Transistor Logic EMT 251. Pass Transistor Logic I n p u t s Switch Network Out A B B B.

Example : XOR gate


transistor–transistor logic TTL - Course Materials | Check …coursematerials.chamberlainradio.com/courses/wp-cont… ·  · 2015-05-11speed to resistor–transistor logic (RTL)

transistor–transistor logic TTL - Course Materials | Check …coursematerials.chamberlainradio.com/courses/wp-cont… ·  · 2015-05-11speed to resistor–transistor logic (RTL)

Unit 3 Combinational MOS Logic Circuitsgn.dronacharya.info/ECEDept/Downloads/QuestionPapers/7th_Sem/VLSI-DESIGN/UNIT-3/...Ratioed Logic Pass Transistor/Transmission Gate Logic Dynamic

Unit 3 Combinational MOS Logic Circuitsgn.dronacharya.info/ECEDept/Downloads/QuestionPapers/7th_Sem/VLSI-DESIGN/UNIT-3/...Ratioed Logic Pass Transistor/Transmission Gate Logic Dynamic

Diode & Transistor Logic Gates

Diode & Transistor Logic Gates

Top-Down Pass-Transistor Logic Design - Solid-State Circuits, … · 2004. 3. 1. · Title: Top-Down Pass-Transistor Logic Design - Solid-State Circuits, IEEE Journ al of Author:

Top-Down Pass-Transistor Logic Design - Solid-State Circuits, … · 2004. 3. 1. · Title: Top-Down Pass-Transistor Logic Design - Solid-State Circuits, IEEE Journ al of Author:

PerformanceAnalysisofHighSpeedHybridCMOSFullAdder ...ble operation at low voltage with arbitrary transistor sizes. The pass-transistor logic (PTL) is a better way to imple- ment circuits

PerformanceAnalysisofHighSpeedHybridCMOSFullAdder ...ble operation at low voltage with arbitrary transistor sizes. The pass-transistor logic (PTL) is a better way to imple- ment circuits

Pass Transistor Logic.pdf

Pass Transistor Logic.pdf

High Performance Logic Style with Constant Delay ... · traditional static and pass transistor CMOS logic ... domino (NORA domino) [3], zipper ... trendy logic style in high-performance

High Performance Logic Style with Constant Delay ... · traditional static and pass transistor CMOS logic ... domino (NORA domino) [3], zipper ... trendy logic style in high-performance

Pseudo NMOS Logic Pass-Transistor Logicmtoledo/4207/S2011/C10_11.pdf · Pseudo NMOS Logic Pass-Transistor Logic INEL 4207 - Spring 2011. Figure 15.1 (a) The pseudo-NMOS logic inverter.

Pseudo NMOS Logic Pass-Transistor Logicmtoledo/4207/S2011/C10_11.pdf · Pseudo NMOS Logic Pass-Transistor Logic INEL 4207 - Spring 2011. Figure 15.1 (a) The pseudo-NMOS logic inverter.

Pass Transistor Logic

Pass Transistor Logic

Pass-transistor Logic

Pass-transistor Logic

TRANSISTOR-TRANSISTOR LOGIC

TRANSISTOR-TRANSISTOR LOGIC

Complex Logic Gates Pass Transistor Logic Improved Switch ...

Complex Logic Gates Pass Transistor Logic Improved Switch ...

Transistor-Transistor Logic and BiCMOS

Transistor-Transistor Logic and BiCMOS

VLSI Design Pass Transistor LogicPass Transistor Logicstaff.iium.edu.my/zahirulalam/za/media/courses/ece4121/ECE 4121... · VLSI Design Pass Transistor LogicPass Transistor Logic

VLSI Design Pass Transistor LogicPass Transistor Logicstaff.iium.edu.my/zahirulalam/za/media/courses/ece4121/ECE 4121... · VLSI Design Pass Transistor LogicPass Transistor Logic

NMOS Pass Transistor - tu-sofia.bg · 1 Transmission Gate Logic Circuits Adapted from CMOS Logic Circuit Design by John P. Uyemura, 2002 2 NMOS Pass Transistor Vmax=VDD VTn

NMOS Pass Transistor - tu-sofia.bg · 1 Transmission Gate Logic Circuits Adapted from CMOS Logic Circuit Design by John P. Uyemura, 2002 2 NMOS Pass Transistor Vmax=VDD VTn

LOGIC FAMILY - anandgharu.files.wordpress.com · (Resistor Transistor Logic), TTL (Transistor Transistor Logic), DTL (Diode Transistor Logic), ... Another advantage of totem-pole

LOGIC FAMILY - anandgharu.files.wordpress.com · (Resistor Transistor Logic), TTL (Transistor Transistor Logic), DTL (Diode Transistor Logic), ... Another advantage of totem-pole

TTL: Transistor-Transistor-Logic Topics

TTL: Transistor-Transistor-Logic Topics

1. Digital cmos.2 10/15 Figure 10.1 Digital IC technologies and logic-circuit families. Digital IC Technologies CMOS & Pass Transistor Logic dominate.

1. Digital cmos.2 10/15 Figure 10.1 Digital IC technologies and logic-circuit families. Digital IC Technologies CMOS & Pass Transistor Logic dominate.

Pass transistor adiabatic logic for low power VLSI design

Pass transistor adiabatic logic for low power VLSI design

Pass Transistor Logic Improved Switch-Level Model ...class.ece.iastate.edu/ee330/lectures/EE 330 Lect 6 Fall 2018.pdf · Pass Transistor Logic Y A xB Requires only 1 transistor (and

Pass Transistor Logic Improved Switch-Level Model ...class.ece.iastate.edu/ee330/lectures/EE 330 Lect 6 Fall 2018.pdf · Pass Transistor Logic Y A xB Requires only 1 transistor (and