High speed operation.
Here are the propagation delays for these gatesa) ECL = 2nsb) TTL = 1.5-33ns depending on the type of TTL. Conventional TTL is 9ns, Advanced Schottky TTL is 1.5nsc) RTL = 25nsd) CMOS = 5-20ns depending on if it is conventional CMOS, TTL pin compatible CMOS, high speed TPC CMOS or TTL compatible CMOSSo the fastest would be the Advanced Schottky TTL (74ASxx) at 1.5ns but the choice simply said TTL which I would interpret as Conventional TTL (74xx/54xx) which would have a propagation delay at 9ns.So the winner is ... (a) ECL which has a propagation delay at 2ns.
The main advantage of ECL over TTL is speed.
§ Low-power TTL (L), which traded switching speed (33ns) for a reduction in power consumption (1 mW) (now essentially replaced by CMOS logic)§ High-speed TTL (H), with faster switching than standard TTL (6ns) but significantly higher power dissipation (22 mW)§ Schottky TTL (S), introduced in 1969, which used Schottky diode clamps at gate inputs to prevent charge storage and improve switching time. These gates operated more quickly (3ns) but had higher power dissipation (19 mW)§ Low-power Schottky TTL (LS)- used the higher resistance values of low-power TTL and the Schottky diodes to provide a good combination of speed (9.5ns) and reduced power consumption (2 mW), and PDP of about 20 pJ. Probably the most common type of TTL, these were used as glue logic in microcomputers, essentially replacing the former H, L, and S sub-families.§ Fast (F) and Advanced-Schottky (AS) variants of LS from Fairchild and TI, respectively, circa 1985, with "Miller-killer" circuits to speed up the low-to-high transition. These families achieved PDPs of 10 pJ and 4 pJ, respectively, the lowest of all the TTL families.§ Low-voltage TTL (LVTTL) for 3.3-volt power supplies and memory interfacing.
Alexander Schottky was born in 1969.
Alexander Schottky is 180 cm.
Friedrich Schottky was born on July 24, 1851.
Friedrich Schottky was born on July 24, 1851.
whis is Endurance mors or ttl
TTL is faster than diode-transistor logic, and does both amplification and logical operations. While they are rather obsolete for most modern designs, they are good for simple and specialized products. So if you need a simple design that other people may need to modify later, then TTL circuits might be more feasible than using a microprocessor. TTL circuits are simple, well-documented, and well-understood. TTL circuits are also good for using for teaching purposes.
Walter H. Schottky was born on July 23, 1886.
Friedrich Schottky died on August 12, 1935 at the age of 84.
Walter H. Schottky was born on July 23, 1886.