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AMH74 vhdl code for 8-bit serial adder vhdl code for 8-bit parity checker vhdl code for 8-bit odd parity checker vhdl code for 8-bit BCD adder PS PS vhdl code for 4-bit magnitude comparator PS vhdl code for 8-bit parity checker using xor gate PS Not Available Abstract: No abstract text available Text: buffer.
List of 7400-series integrated circuits
There are several families of logic ICs numbered from 74xx00 onwards with letters xx in the middle of the number to indicate the type of circuitry, eg 74LS00 and 74HC The original family now obsolete had no letters, eg For each IC there is a diagram showing the pin arrangement and brief notes explain the function of the pins where necessary. For simplicity the family letters after the 74 are omitted in the diagrams below because the pin connections apply to all ICs with the same number. If you are using another reference please be aware that there is some variation in the terms used to describe pin functions, for example reset is also called clear. Some inputs are 'active low' which means they perform their function when low. Note that 74HC inputs cannot be reliably driven by 74LS outputs because the voltage ranges used for logic 0 are not quite compatible, use 74HCT instead.
74 Series Logic ICs
The following is a list of series digital logic integrated circuits. The original series integrated circuits were made by Texas Instruments with the prefix "SN" to create the name SN74xx. Due to the popularity of these parts, other manufacturers released pin-to-pin compatible logic devices which kept the sequence number as an aid to identification of compatible parts. However, different manufacturers use different prefixes or no prefix at all. Some TTL logic parts were made with an extended military-specification temperature range.