User:Sbmeirow/Sandbox

ICs
Temporary work for table at https://en.wikipedia.org/wiki/Seven-segment_display#Decoder_ICs


 * Table notes


 * For the "0" to "F" columns,
 * each 4-bit input is shown as its 7-segment decoded output.


 * For the "Output" column,
 * Active-High means a high occurs when a segment is on, where as Active-Low means a low occurs when a segment is on.
 * PP means Push-Pull output driver, OC means Open-Collector output driver, OE means Open-Emitter output driver, CC means Constant Current output driver.


 * For the "Manufacturer" column,
 * TODO: RCA --> (Harris --> Intersil) --> Renesas -- Intersil was sold to Renesas Electronics in 2017.
 * Motorola Semiconductor Components Group was spun into ON Semiconductor in 1999.
 * National Semiconductor was sold to Texas Instruments in 2011.


 * TODO


 * Finish manufacturer historical list.


 * Maybe describe outputs. Output for 0 / 2 / 3 / 4 / 5 / 8 are the same for all ICs. MC14558B has a different output for 1.  TC5022 has a different output for 7.  Output for 6 & 9 vary across the ICs.