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The following is a list of 7400-series digital logic integrated circuits. In the mid-1960s, the original 7400-series integrated circuits were introduced by Texas Instruments with the prefix "SN" to create the name SN74xx.
The second line of numbers (7645) is a date code; this chip was manufactured in the 45th week of 1976. [2] The 7400 series is a popular logic family of transistor–transistor logic (TTL) integrated circuits (ICs). [3] In 1964, Texas Instruments introduced the SN5400 series of logic chips, in a ceramic semiconductor package.
The first letter of the model indicates the series, the second and the third model number indicates the number of cores (e.g. P5040 has four cores, T4240 has 24 cores) P series. P1 series, e500v2 cores: P1011, P1020; P2 series: e500v2 core P2020, e500mc cores P2040, P2041; P3 series, introduced in 2010, based on e500mc cores: P3041
The known serial numbers are: 1014, 1017, 1019, 1027, 1030, 1040, 1048, 1054. (The Russian museum and the Ohio collection rifles serial numbers are unknown.) [ citation needed ] In April 2017, serial number 1048 was acquired at auction in excellent condition by the Polish Ministry of National Defence for $69,000. [ 4 ]
The numbers in brackets give the figures for a four-regiment brigade, as opposed to the standard three-regiment one. The figures for the regiments are given after the actual mobilisation report of September 1, 1939, of the 25th Greater Polish Uhlans Regiment .
Non-discrete code assignments in accordance with FAA Order JO 7110.65, 5-2. US: Also for use in oceanic airspace unless another code is assigned by ATC. [3] 0500, 0600, 0700 US: External ARTCC subsets. (Blocks of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 1000 Canada
The view and element placement of the popular chip 7400. The chip contains four logical elements AND-NOT (NAND). The two additional contacts supply power (+5 V) and connect the ground.
It also could be noted that various subsets of 7400 were made by Bulgaria, Czechoslovakia, East Germany, Hungary and Poland. --192.28.65.210 14:45, 13 August 2010 (UTC) This is very interesting, the problem is finding (hopefully English-language) sources to cite for it. --Wtshymanski 15:38, 13 August 2010 (UTC)