Is the Power Consumption of TTL Higher than CMOS and Why?

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SUMMARY

The discussion centers on the power consumption differences between Transistor-Transistor Logic (TTL) and Complementary Metal-Oxide-Semiconductor (CMOS) technologies. It is established that TTL consumes more power primarily due to its reliance on bipolar junction transistors (BJTs), which have higher static power consumption compared to CMOS's MOSFETs. The base-emitter diode drop in BJTs contributes significantly to this increased power usage. Additionally, the ON resistance of MOSFETs is generally lower than that of BJTs, further emphasizing the efficiency of CMOS technology.

PREREQUISITES
  • Understanding of Transistor-Transistor Logic (TTL)
  • Familiarity with Complementary Metal-Oxide-Semiconductor (CMOS) technology
  • Knowledge of bipolar junction transistors (BJTs)
  • Basic principles of MOSFET operation
NEXT STEPS
  • Research the power consumption characteristics of TTL versus CMOS technologies
  • Explore the impact of base-emitter diode drop in BJTs on power consumption
  • Investigate the ON resistance differences between MOSFETs and BJTs
  • Learn about the applications and advantages of CMOS in modern electronics
USEFUL FOR

Electrical engineers, electronics students, and professionals involved in circuit design and optimization who seek to understand the power efficiency of different logic families.

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Why does TTL consume more power than CMOS?
I googled but did not find any useful information.
I can think of the Base emitter diode drop as one cause. But are there other reasons why TTL consumes more power.
Can I compare the ON resistance of MOSFETs Vs BJTs?
 
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