Toshiba TD3472AP Replacement ???

[guizmo1967]

Hello,

I search and search and could not find the datasheet for this IC !!!

What I understand it's a JK Flip Flop IC. From the schematic the pinout is:

1- Not connected
2- R
3- ground
4- J (tied to ground with 3 and 5)
5- ground
6- Q(bar)
7- Vss
8- Q
9- +5V
10- +5V
11- K (tied to +5V with 9 and 10)
12- C
13- S
14- Vdd

What is pin2 (R), pin13 (S), pin12 (C) ???

Is it (R)eset, (S)et and (C)lock ???

Thank you for your help !!

[truclacicr]

Re: Toshiba TD3472AP Replacement ???

2 = CLR (clear)
13 = PR (preset)
12 = CK (clock)

https://cdn.badcaps-static.com/pdfs/...10897416d6.pdf (IC11, page 14)

The chip appears to have the same pinout as a 7472.

https://cdn.badcaps-static.com/pdfs/...42accdc4e4.pdf
https://www.datasheetarchive.com/dat...&term=TD3472AP

[guizmo1967]

Re: Toshiba TD3472AP Replacement ???

Looks like the SN5472/SN7472 are the exact replacement for the TD3472AP !!!

Thank you very much for your information truclacicr