Some common logic ICs
This article/section is a stub — probably a pile of half-sorted notes and is probably a first version, is not well-checked, so may have incorrect bits. (Feel free to ignore, or tell me) |
7400 series
Originally SN74xx (TI). Many were so basic an useful that other manufacturers created pin-compatibles of many of these.
The generic name is something like 74x where x refers to the many subfamilies that existed over time.
There are over thirty such subfamilies (depending on how you count), but we often see relatively few of them, e.g.
- 74 - TTL
- 74H - high speed
- 74LS - low power schottky
- 74HC - CMOS
- 74HCT - high speed CMOS TTL-compatible
Note that the recently produced variants are more likely to be CMOS or BiCMOS rather than classical TTL, but typically compatible.
For the types of function in the series, see https://en.wikipedia.org/wiki/List_of_7400-series_integrated_circuits but it's mostly things like gates (AND, OR, NAND, NOR), buffers, inverters, bus drivers, triggers, latches, shift registers, multiplexers, decimal or 7-segment encoders/decoders, counters, flip-flops, some (tiny) RAM, FIFO, and some more complex things like ADCs, basic modems, DRAM, ALUs controllers(verify)
For example,
74x04 hex inverter 74x14 hex schmitt inverter 74x595 8-bit shift registers, Serial-In, Parallel-Out, output latches, output enable 74x164 8-bit serial-in parallel-out (SIPO) shift register 74x165 8-bit parallel-in serial-out (PISO) shift register 74x166 parallel-load 8-bit shift register
See also:
4000 series
https://en.wikipedia.org/wiki/List_of_4000-series_integrated_circuits#Parts_list