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

Pass Transistor LogicIn

puts Switch

Network

OutOut

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)

Complementary Pass Transistor Logic (CPL)

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

Example: AND/NAND gate

Example: OR/NOR gate

Example : XOR/XNOR gate

Cascaded Technique

Wrong!!

Correct!!

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

Transmission Gate Logic

EMT 251

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’)

A(Vin ) B (Vout )

A (Vin ) B (Vout )

The MOS transistor pass gate

0 passes a good 0

passes a bad 1

passes a bad 0 passes a good 1

pMOS Near Short CCT Resistance small

TG as a Tristate Buffer

B=A(or Z when S=0)

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

Example : OR gate

Example : AND gate

Example : XOR gate

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

Documents

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

Transistor-Transistor Logic and BiCMOS

TTL: Transistor-Transistor-Logic Topicswakerly.org/DDPP/DDPP4student/Supplementary_sections/TTL.pdf · Transistor-Transistor-Logic Topics TTL–1 ... Current spikes can show up as

Slide Set 3 Pass Transistor Logic / Transmission …courses.ece.ubc.ca/479/handouts/s3_1up.pdfSlide Set 3, Slide 1 Slide Set 3 Pass Transistor Logic / Transmission Gates Steve Wilton

Impact of Pass-Transistor Logic (PTL) on Power, Delay and Area

TTL: Transistor-Transistor-Logic Topics · 2017. 9. 21. · Transistor-Transistor-Logic Topics TTL–6 Supplementary material to accompany Digital Design Principles and Practices,

Automated Design for Current-Mode Pass-Transistor Logic · PDF fileAutomated Design for Current-Mode Pass-Transistor Logic Blocks Matthew David Pierson Electrical Engineering and Computer

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

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

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

"Pass-Transistor Logic: Transmission Gate XOR"mhanis/ece637/lecture11.pdf · 1 Pass-Transistor Logic. EE141 2 ... Use very low threshold values for NMOS pass transistors, ... NMOS

Digital Design - sanjayvidhyadharan.in Materils for Digital... · Diode Transistor Logic : 1959 Resistor Transistor Logic : 1961 Transistor Transistor Logic : 1963 Discrete IC Emitter-coupled

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:

Pass Transistor Logic.pdf

TTL: Transistor Transistor Logic

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

Topic 11 - Pass Transistor Logic

Pass Transistor Logic. Agenda Introduction VLSI Design methodologies Review of MOS Transistor Theory Inverter – Nucleus of Digital Integrated.

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.

TTL(Transistor 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