Need a datasheet for 24 pin China/Hong Kong IC(?): MB15024GF

T&E Engineer

I have a Display RGB LED module from China that uses·many SPI type chips that I am guessing·are similar to·the 74HC595 but more complex. I have been able to reverse engineer some pins on the chip with a meter and continuity beeper as follows:

1. GND
2. Data
3. Clock
4. Latch
5. LED 1 (+ or -)?
6. LED 1 (+ or -)?
7. LED·2 (+ or -)?
8. LED·2 (+ or -)?
9. LED·3 (+ or -)?
10. LED·3 (+ or -)?
11. LED·4 (+ or -)?
12. LED·4 (+ or -)?

13. LED·5 (+ or -)?
14. LED·5 (+ or -)?
15. LED·6 (+ or -)?
16. LED·6 (+ or -)?
17. LED·7 (+ or -)?
18. LED·7 (+ or -)?
19. LED·8 (+ or -)?
20. LED·8 (+ or -)?
21. OE
22. ? (runs out to a resistor and not sure after that)
23. ? (can't trace where this goes to)
24. VCC (+5vdc)

These signals are coming out from 74HC245D buffer ICs.

I tried doing a Google search and got an email to request a datasheet - just to find out that the email timed out after a couple days searching with an undeliverable request.

Has anyone heard of this MB15024 IC or GF variant? It is a surface mount part not quite a DIP (perhaps SOIC). (Not fully up to speed on surface mount variants yet).

PS: I did not check the LED x (+ or -) to see which is the anode and the cathode yet.

Thanks.

T&E Engineer

I believe it may also be listed as MB15024GP. I requested information from icpart@icpart.com where I saw the chinese listed part but haven't gotten a reply.

Other ideas or comments?

T&E Engineer

Well I found out that the MB15024GF is actually a MBI5024GF. The 1 was an I. God I hate that..agh. I don't believe I have seen 3 letter identifiers on ICs so....

Anyway, I can only get a chinese version of the datasheet online. But it seems to be equivalent to the Toshiba TB62726 (which runs at 3.3vdc) and the MBI5024GF runs at 5vdc.

Problem solved.