74 series - Revision history

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The '''74 series''' are a pervasive family of [[transistor-transistor logic|TTL]] [[integrated circuit]]s. Originally created by [[Texas Instruments]], eventually all the major IC producers offered compatibly-numbered lines.

The original 74 series chips (which have numbers of the form '74xx') were joined over time by many other compatible families. '74H' used more power, but were faster; '74L' use less, and were slower. '74S' (using Schottky circuits) which were faster followed, along with '74LS' (low-power Schottky), not as fast as 74S, but using less power. Later '74AS' ('Advanced Schottky) and '74ALS' were added.

Originally offered in [[Dual Inline Package|DIP]] form, they are now available in [[surface mount]] form as well.

@@ Line 1: / Line 1: @@
-The '''74 series''' are a pervasive family of [[transistor-transistor logic|TTL]] [[integrated circuit]]s. Originally created by [[Texas Instruments]], eventually all the other major IC producers eventually offered compatibly-functional and -numbered TTL chip lines of their own (so that, say, a 7400 from Motorola was a pin-compatible replacement for the TI chip).
+The '''74 series''' are a pervasive family of [[transistor-transistor logic|TTL]] [[integrated circuit]]s. Originally created by [[Texas Instruments]], eventually all the other major IC producers eventually offered compatibly-functional and -numbered TTL chip lines of their own (so that, say, a 7400 from [[Motorola]] was a pin-compatible replacement for the TI chip).
 Originally offered in [[Dual Inline Package|DIP]] and 'flat pak' forms, they are now available in [[surface mount]] form as well.
@@ Line 5: / Line 5: @@
 ==Families==
-The original 74 series chips (which have numbers of the form '74xx') were joined over time by many other compatible families. '74H' used more power, but were faster; '74L' use less, and were slower. '74S' (using Schottky circuits) which were faster followed, along with '74LS' (low-power Schottky), not as fast as 74S, but using less power. Later '74AS' ('Advanced Schottky) and '74ALS' were added.
+The original 74 series chips (which have numbers of the form '74xx') were joined over time by many other compatible families. '74H' used more power, but were faster; '74L' use less, and were slower. '74S' (using [[Schottky]] circuits) which were faster followed, along with '74LS' (low-power Schottky), not as fast as 74S, but using less power. Later '74AS' ('Advanced Schottky) and '74ALS' were added.
-The following table gives typical propogation delay (in nsec) and power consumption (in mW):
+The following table gives typical propagation delay (in nsec) and power consumption (in mW):
 {| class="wikitable"
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 |}
-[[Category: Chips]]
+[[Category: Integrated Circuits]]

← Older revision		Revision as of 20:21, 18 December 2018
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	\|}		\|}

−	[[Category: ~~Technology‎~~]]	+	[[Category: Chips]]

← Older revision		Revision as of 18:22, 14 December 2018
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	\| ALS \|\| 4 \|\| 1		\| ALS \|\| 4 \|\| 1
	\|}		\|}
		+
		+	[[Category: Technology‎]]

← Older revision		Revision as of 12:50, 27 March 2018
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−	The '''74 series''' are a pervasive family of [[transistor-transistor logic\|TTL]] [[integrated circuit]]s. Originally created by [[Texas Instruments]], eventually all the other major IC producers eventually offered compatibly-functional and numbered TTL chip lines of their own (so that, say, a 7400 from Motorola was a pin-compatible replacement for the TI chip).	+	The '''74 series''' are a pervasive family of [[transistor-transistor logic\|TTL]] [[integrated circuit]]s. Originally created by [[Texas Instruments]], eventually all the other major IC producers eventually offered compatibly-functional and -numbered TTL chip lines of their own (so that, say, a 7400 from Motorola was a pin-compatible replacement for the TI chip).

	Originally offered in [[Dual Inline Package\|DIP]] and 'flat pak' forms, they are now available in [[surface mount]] form as well.		Originally offered in [[Dual Inline Package\|DIP]] and 'flat pak' forms, they are now available in [[surface mount]] form as well.

← Older revision		Revision as of 12:49, 27 March 2018
Line 1:		Line 1:
−	The '''74 series''' are a pervasive family of [[transistor-transistor logic\|TTL]] [[integrated circuit]]s. Originally created by [[Texas Instruments]], eventually all the major IC producers offered compatibly-numbered lines.	+	The '''74 series''' are a pervasive family of [[transistor-transistor logic\|TTL]] [[integrated circuit]]s. Originally created by [[Texas Instruments]], eventually all the other major IC producers eventually offered compatibly-functional and numbered TTL chip lines of their own (so that, say, a 7400 from Motorola was a pin-compatible replacement for the TI chip).

	Originally offered in [[Dual Inline Package\|DIP]] and 'flat pak' forms, they are now available in [[surface mount]] form as well.		Originally offered in [[Dual Inline Package\|DIP]] and 'flat pak' forms, they are now available in [[surface mount]] form as well.