need the datasheet for a 7 segment display decoder

[MrDudeMan]

i can NOT find the datasheet for a 7 segment decoder. the part number is 74LS49 and it is made by NTE, not TI. usually i go to ti.com, search for the part number, and the datasheets are right there. NTE offers no such service (that i can find).

i searched google images and found 1, but its not in english and the pins are not correct. i have tested them and it isnt right.

i have looked absolutely everywhere on the internet that i can think of and i can not get my hands on a datasheet. if you can find it, ill be your best friend for 9-10 minutes. thats worth a lot in some countries.

thanks and godspeed to anyone looking for this datasheet.

edit for full part number: HD74LS49P

 

[deftron]

D-R-I-N-K

Y-O-U-R

O-V-A-L-T-I-N-E

 

[MrDudeMan]

Originally posted by: deftron
D-R-I-N-K

Y-O-U-R

O-V-A-L-T-I-N-E

i dont get it

 

[JW310]

will http://www.alldatasheet.com/datasheet-pdf/view/TI/74LS49.html work for you?

 

[MrDudeMan]

that didnt work either. the part number is HD74LS49P. sorry, i forgot that there were more numbers.

none of those chips were made by NTE. i just tested the pinouts from all 3 datasheets and non of them yielded working results.

 

[WW]

is that 9 or an 8?

http://documentation.renesas.com/eng/products/logic/rej03d0411_hd74ls48.pdf

I didn't see a 74ls49 on the renesas page....maybe it's obsolete for them, or generic so they don't publish one...maybe check again there I might have missed it

 

[MrDudeMan]

its a 9. ill type it again just to make sure...

model number exactly as printed on the chip:

HD74LS49P

14pin BCD 7 segment display driver

 

[WW]

http://www.renesas.com/avs/resource/japan/jpn/pdf/logic/jhd74ls49.pdf

weird..it's on the japanese page...probably doesn't help you too much

 

[MrDudeMan]

this is what ive been able to find out about the chip...

7 is ground, 14 is Vcc (typical)

pin 6 and 8-13 are outputs

1, 2, 4, and 5 seem to be inputs, but im not sure. i have no idea what 3 is and also no clue about the order of these inputs/outputs.

 

[WW]

http://www.alldatasheet.com/datasheet-pdf/view/HITACHI/HD74LS49.html

english version...14 pin...is that it? no P suffix...

 

[MrDudeMan]

Originally posted by: WW
http://www.renesas.com/avs/resource/japan/jpn/pdf/logic/jhd74ls49.pdf

weird..it's on the japanese page...probably doesn't help you too much

woah...i think thats it.

 

[MrDudeMan]

thanks for the help guys

 

[eLiu]

Originally posted by: Bigsm00th

Originally posted by: deftron
D-R-I-N-K

Y-O-U-R

O-V-A-L-T-I-N-E

i dont get it

Christmas Story or whatever that movie is called

 

[imthebadguy]

trying to hax0r it are we?

 

[MrDudeMan]

Originally posted by: imthebadguy
trying to hax0r it are we?

haxor what? that doesnt even make sense given the situation...im designing a digital clock...