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is there any integrated circuit HEX to 7 segment decoder for a common anode 7 SEG display that generates codes to display hex digits from 0 to F as shown in the photo. Thanksenter image description here

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  • \$\begingroup\$ Yes. You should be able to find it by searching. \$\endgroup\$ – mkeith May 8 '18 at 3:18
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    \$\begingroup\$ I may have spoken too soon. There used to be such, but I believe they are now all discontinued. \$\endgroup\$ – mkeith May 8 '18 at 3:24
  • \$\begingroup\$ Do you need this for board repair? ...new design? ...just because you have these LED displays? The answers may be different for each. \$\endgroup\$ – Jack Creasey May 8 '18 at 4:44
  • \$\begingroup\$ There used to be a TIL311 which displayed hex format, but it has long been deprecated from the market. If you find any they cost ten times the original cost. \$\endgroup\$ – user105652 May 8 '18 at 4:54
  • \$\begingroup\$ use microcontroller. Demux the pins to drive all displays together. \$\endgroup\$ – Mitu Raj May 8 '18 at 6:15
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Not aware of any standard 74xx chip solution. My recommendation is to use a low-end microcontroller that has at least 11 GPIO pins. The hex to 7-segment conversion can be done with a lookup table (array) and a few lines of code.

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  • \$\begingroup\$ I'am using PIC16F84A which contains 13 pins and i have a 6 digit multiplexed 7 SEG display which need 6 pins to select digits, so it remains just 7 pins. I tried 74xx series but their problem they display digits 6 and 9 in a different format not like i want as mentioned in the photo . \$\endgroup\$ – Samir Fassak May 8 '18 at 14:58
  • \$\begingroup\$ If your display is LCD, you could AY0438 segment drivers. Their input is serial (SPI) which would free up i/o pins on the MCU. \$\endgroup\$ – AlmostDone May 8 '18 at 18:07
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besides the microcontroller suggested by AlmostDone you can use a small EEPROM with (at least) 4 address pins and 7 data pins.

You can tie any unused address pins to ground.

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  • \$\begingroup\$ I'am using PIC16F84A which contains 13 pins and i have a 6 digit multiplexed 7 SEG display which need 6 pins to select digits, so it remains just 7 pins. I tried 74xx series but their problem they display digits 6 and 9 in a different format not like i want as mentioned in the photo \$\endgroup\$ – Samir Fassak May 8 '18 at 14:59

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