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Some xxx parts, however, do not have a direct counterpart from the standard 74xxx range but deliver new functionality instead, which needs making use of the xxx series’ higher pin count.
Conversely, the series has “borrowed” from the series – such as the CD and CD being pin-for-pin functional replacements for 74C and 74C This page was last edited on 27 November dagasheet, at PLA 12 inputs, 32 terms, 6 outputs.
series IC datasheets
Surface mount parts with a single gate often in a 5-pin or 6-pin package are prefixed datasneet G instead of Parts in this section have a pin count of 14 pins or more. In other projects Wikimedia Commons. All chips in this section have two gates, noted by the “2G” in the part numbers. Now logic can be placed where it is physically needed on a board, instead of running long signal traces to a full-size logic chip that has many of the same gate.
All chips in the following sections are available 4 to 12 pin surface mount packages.
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74LS76P, 74LS78, 74LS795
The original series integrated circuits were made by Texas Instruments with the prefix “SN” to create the name SN74xx. AND-gated positive edge triggered J-K flip-flopasynchronous preset and clear. The following is a list of series digital logic integrated circuits. Retrieved July 27, For more details, refer primarily to the Texas Instruments documentation mentioned in the References section.
The lower part numbers were established in the s and s, then higher part numbers were added incrementally over decades. Articles lacking datazheet citations from June All articles lacking in-text citations.
June Datqsheet how and when to remove this template message. As board designs have migrated away from 74lw78 amounts of logic chips, so has the need datasyeet many of the same gate in one package. Older discontinued parts may be available from a limited number of sellers as new old stock NOSthough some are much harder to find. Not all functions are available in all families. The “x” in the part number is a place holder for the logic family name. A few alphabetic characters to designate a specific logic subfamily may immediately follow the 74 or 54 in the part number, e.
This article includes a list of referencesbut its sources remain unclear because it has insufficient inline citations. List of books about series integrated circuits. Another extension to the series is the xxx variant, representing mostly the bit wide counterpart of otherwise 8-bit-wide “base” chips with the same three ending digits.
Some manufacturers released some series equivalent CMOS circuits with a 74 datasheer, for example the 74HC was a replacement for the with slightly different electrical characteristics different power supply voltage ratings, higher frequency capabilities, lower “on” resistances in analog switches, etc. However, different manufacturers will use different prefixes or no prefix at all. PLA 12 inputs, 50 terms, 6 outputs.
Some TTL logic parts were made with an extended military-specification temperature range. Retrieved from ” https: All chips in this section have three gates, noted by the “3G” in the part numbers.
All chips in this section have one gate, noted by the “1G” in the part numbers. In a few instances, such as the andthe same suffix in different families do not have completely equivalent logic functions.
Archived PDF from the original on July 9, Some of the manufacturers that make these smaller IC chips are: A short-lived 64 prefix on Texas Instruments parts indicated an industrial temperature range; this prefix had been dropped from the TI literature by IC manufacturers continue to make a core subset of this group, but many of these part numbers are considered obsolete and no longer manufactured.
See List of series integrated circuits.
74LS76P, 74LS78, 74LS795
Due to the popularity of these parts, other manufacturers have released pin-to-pin compatible devices which kept the sequence number as an aid to identification of compatible parts. From Wikipedia, the free encyclopedia. Digital electronics Electronic design Electronics lists Integrated circuits.