User:Sbmeirow/Sandbox

This is a Wikipedia user page.
This is not an encyclopedia article or the talk page for an encyclopedia article. If you find this page on any site other than Wikipedia, you are viewing a mirror site. Be aware that the page may be outdated and that the user in whose space this page is located may have no personal affiliation with any site other than Wikipedia. The original page is located at https://en.wikipedia.org/wiki/User:Sbmeirow/Sandbox.

This is not a Wikipedia article: It is an individual user's rough notes page, and may be incomplete and/or unreliable.

ICs[edit]

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

Manufacturer	Part Number	Production	Description	0	1	2	3	4	5	6	7	8	9	A	B	C	D	E	F	Output	Datasheet
TI	SN74LS47	Active	BCD Decoder																	Active-Low, OC	^[1]
TI	SN74LS247	Active	BCD Decoder																	Active-Low, OC	^[2]
Motorola	MC14495-1	Discontinued	Hex Decoder, Latch																	Active-High, OE	^[3]
RCA	CD4026B	Active (TI)	BCD Counter, Up																	Active-High, PP	^[4]

Template	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?	?

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.^[5]
Motorola Semiconductor Components Group was spun into ON Semiconductor in 1999.^[6]
National Semiconductor was sold to Texas Instruments in 2011.^[7]

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.

References[edit]

^ "SN74LS47 / SN74LS48 / SN74LS49 Datasheet". Texas Instruments. July 2021. Archived (PDF) from the original on August 1, 2021.
^ "SN74LS247 / SN74LS248 Datasheet". Texas Instruments. July 2021. Archived (PDF) from the original on August 1, 2021.
^ "MC14495-1 Datasheet from CMOS / NMOS Special Functions Databook". Motorola. 1988.
^ "CD4026B / CD4033B Datasheet". Texas Instruments. December 2020. Archived (PDF) from the original on August 1, 2021.
^ "Renesas and Intersil Announce Final Regulatory Approval for Renesas' Acquisition of Intersil". Renesas Electronics. February 22, 2017. Archived from the original on June 13, 2020.
^ "Former Motorola group emerges as ON Semiconductor". EE Times. August 5, 1999. Archived from the original on June 8, 2020.
^ "Texas Instruments completes acquisition of National Semiconductor". Texas Instruments. September 23, 2011. Archived from the original on May 22, 2020.

[TI_SN74LS47_Datasheet-1] "SN74LS47 / SN74LS48 / SN74LS49 Datasheet". Texas Instruments. July 2021. Archived (PDF) from the original on August 1, 2021.

[TI_SN74LS247_Datasheet-2] "SN74LS247 / SN74LS248 Datasheet". Texas Instruments. July 2021. Archived (PDF) from the original on August 1, 2021.

[Motorola_MC14495-1_Datasheet-3] "MC14495-1 Datasheet from CMOS / NMOS Special Functions Databook". Motorola. 1988.

[TI_CD4026B_Datasheet-4] "CD4026B / CD4033B Datasheet". Texas Instruments. December 2020. Archived (PDF) from the original on August 1, 2021.

[5] "Renesas and Intersil Announce Final Regulatory Approval for Renesas' Acquisition of Intersil". Renesas Electronics. February 22, 2017. Archived from the original on June 13, 2020.

[6] "Former Motorola group emerges as ON Semiconductor". EE Times. August 5, 1999. Archived from the original on June 8, 2020.

[7] "Texas Instruments completes acquisition of National Semiconductor". Texas Instruments. September 23, 2011. Archived from the original on May 22, 2020.

[1]

[2]

[3]

[4]

[5]

[6]

[7]