ICs
Temporary work for table at https://www.search.com.vn/wiki/en/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
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