Gates that are commonly available across most small footprint families are 00, 02, 04, 08, 14, 32, 86, 125, 126.
Trenton Anvil S Cross Reference List Series Digital LogicThe following is a list of 7400-series digital logic integrated circuits.
Due to the popularity of these parts, other manufacturers released pin-to-pin compatible logic devices and kept the 7400 sequence number as an aid to identification of compatible parts. ![]() Most recent 7400 series parts are fabricated in CMOS or BiCMOS technology rather than TTL. Surface mount parts with a single gate (often in a 5-pin or 6-pin package) are prefixed with 741G instead of 74. Conversely, the 4000-series has borrowed from the 7400 series - such as the CD40193 and CD40161 being pin-for-pin functional replacements for 74C193 and 74C161. Some CMOS parts such as 74HCT74 for High-speed CMOS with TTL-compatible input thresholds are functionally similar to the TTL part. The generic descriptive feature of these alphabetic characters was diluted by various companies participating in the market at its peak, and are not always consistent especially with more recent offerings. The National Semiconductor trademarks of the words FAST 3 and FACT. Some 7416xxx parts, however, do not have a direct counterpart from the standard 74xxx range but deliver new functionality instead, which needs making use of the 7416xxx series higher pin count. For more details, refer primarily to the Texas Instruments documentation mentioned in the References section. For part numbers in the following tables, x is the logic family. The lower part numbers were established in the 1960s and 1970s, then higher part numbers were added incrementally over decades. IC manufacturers continue to make a core subset of this group, but many of these part numbers are considered obsolete and no longer manufactured. Older discontinued parts may be available from a limited number of sellers as new old stock (NOS), though some are much harder to find. Trenton Anvil S Cross Reference List Drivers Or BuffersOutputs with higher output currents are often called drivers or buffers. Since about 1996, 7 there has been an ongoing trend towards one two three logic gates per chip. 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. The right digits, after the 1G2G3G, typically has the same functional features as older legacy chips, except for the multifunctional chips and 4-digit chip numbers which are unique to these newer families. The x in the part number is a place holder for the logic family name. The previously stated prefixes of SN- and MC- are used to denote manufacturers, Texas Instruments and ON Semiconductor respectively. The LVC family is very popular in small footprints because it supports the most common logic voltages of 1.8V, 3.3V, 5V, its inputs are 5V tolerant when the device is powered at a lower voltage, and an output drive of 24 mA.
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