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pcfans
February 1st, 2014, 04:37 AM
A Intel i4040 board, but a lot of question, please tell me, thanks.



This is an Intel 4040 board, I can recognize 3 Intel chips:

1: Intel i4040 cpu

2: Intel 4289 chipset for memory controller

3: Intel 4201 clock generator.




Please tell me other chips is for? And their functions? :

motorola: MC14013BCP chip

motorola: MC14023BCP chip

motorola: MC14028BAL chip

Philips: 4049BP chip (chip mark is too blur)



This board is old, I think is no later than year 1983. Is this a full function computing board?


Thanks a lot.

17068

inakito
February 3rd, 2014, 10:36 AM
Please, might you post a link to a higher res picture? I can barely see the chips!:-(



A Intel i4040 board, but a lot of question, please tell me, thanks.



This is an Intel 4040 board, I can recognize 3 Intel chips:

1: Intel i4040 cpu

2: Intel 4289 chipset for memory controller

3: Intel 4201 clock generator.




Please tell me other chips is for? And their functions? :

motorola: MC14013BCP chip

motorola: MC14023BCP chip

motorola: MC14028BAL chip

Philips: 4049BP chip (chip mark is too blur)



This board is old, I think is no later than year 1983. Is this a full function computing board?


Thanks a lot.

17068

Dwight Elvey
February 3rd, 2014, 04:16 PM
If you had some RAM and ROM connected to the connector,
it could be functional. Without that it is just a CPU board with
no instructions.
Dwight

daver2
February 5th, 2014, 10:43 AM
Typing the "other chip" numbers into google (ignoring the suffix letters) gives you the full data sheet on these chips popping up within the first few hits. They are pretty much support chips.

As Dwight has already stated - no ROM or RAM means it won't do much when you power it up. If you download all the data sheets and trace out the schematic you should be able to work out which of the connector pins do what. You may then be able to add a small amount of static RAM and an EPROM. Of course, you will have to find a 4040 cross-assembler. There are a few 4004 cross-assemblers available for the PC and (as the 4040 is an extended instruction set version of the 4004) you could use one of these to write yourself a small monitor program to enter, list and execute hexadecimal code within the 4 bit micro.

You just have to think what would you use for I/O? A serial UART or a simple matrix keyboard and seven-segment displays like a Sinclair MK14?

This sounds like an interesting project to resurrect an Intel 4040 card (assuming the main chaps work).

Good luck,

Dave

forjack842
February 5th, 2014, 11:39 AM
motorola: MC14013BCP chip is the same as a CD4013 cmos D flip flop

motorola: MC14023BCP chip s the same as a CD 4023B Triple 3-Input NAND Gate

motorola: MC14028BAL chip is the same as a CD4028 BCD-to-Decimal decoder 1 from 10

pcfans
February 7th, 2014, 10:58 PM
Thanks for information all above.

It seems like a Calculator board.

Dwight Elvey
February 11th, 2014, 03:53 PM
I think it is more likely out of an old DVM.
It doesn't look like the typical calculator circuit.
It would be more dense and compact.
Dwight