MH7202F - H8/539F

[GTODesign]

It seems like a losing battle to find a datasheet for the MH7202F.

I've got conflicting opinions from people on the similarity of these 2 chips. I spoke to someone today who has probed the
basic communication interface between the MUT II and a MH7202F and verified the basic pin outs appear to be the same.

Has anyone compared the H8/539F chip to the one fitted in the later Evo's?

[NeverLies]

Just get a look here and you will be sure that this is the main chip

http://kaele.com/~kashima/car/evo/

[cboles]

Here's what I know about the EVO ECU's I have seen

EVO 7: SH7052
EVO 8: SH7052
EVO 9: SH7055

EVO 8 ACD: MH7203FA

[GTODesign]

Thanks for that, so assuming our Japanese friend to be correct we have...
ISP Ver.2 Dir. F-ZTAT MPU
Pin # SIGNAL SIGNAL Pin #
1 GND → GND 1
2 GND →
3 RxD ← TxD 2
4 TxD → RxD 3
5 RESET → RESET 4
6 VCC ← +5V 5
7 VPP → VPP 6
8 MD2 → MD2 7
9 GND → GND 8
10 GND →

[NeverLies]

Here's what I know about the EVO ECU's I have seen

EVO 7: SH7052
EVO 8: SH7052
EVO 9: SH7055

EVO 8 ACD: MH7203FA

What is ACD Colby ?

[GTODesign]

Active Centre Diff?

[cboles]

Yes. I'm referring to the seperate controller for the active center diff.