start of psxchips.txt
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Last modified 08/13/97
Special thanks go out to Dan Boris and Jim Shaw the information they've given
me.
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Today at work I took apart a Playstation and made an inventory of all of the
IC's in it.  I don't know if this is of any use, but anyway, here it is.

Maxon   08/11/97
gpw0341@omega.uta.edu

Mfg'd by : Sony
Markings : CXD8561BQ
Package  : 208 pins.
Purpose  : either the CPU or GPU.  don't know yet.  need to research.
Notes    : This is probably an LSI/SGI/MIPS chip Sony has remarked.

Mfg'd by : Sony
Markings : CXD8606Q
           L9B0057
           WJ92537
           NNI 9722
Package  : 208 pins.
Purpose  : either the CPU or GPU.  again, I need to research it.
Notes    : This is probably an LSI/SGI/MIPS chip Sony has remarked.

Mfg'd by : NEC
Markings : 424805AL-A60
           9718NV065
Package  : 28 pins.
Purpose  : 512x8 fast page 60ns DRAM.  this is the psx main RAM.
Notes    : There are four of these in the psx.  Thanks to Jim Shaw for
           verifying my hunch that these are 60ns memory used in psx.

Mfg'd by : NEC
Markings : D4818QGF-A12
           -S
           9712L9525
Package  : 100 pins.
Purpose  : 12ns RAM.  Probably the video memory.
Notes    : Thanks to Jim Shaw for verifying that this is 12ns RAM.

Mfg'd by : Sony
Markings : 2030
Package  : 32 pin DIP.
Purpose  : the ROM?  it looked like a ROM chip to me.

Mfg'd by : Sony
Markings : CXD2925Q
           721R16F
Package  : 100 pins.
Purpose  : ?

Mfg'd by : Sony
Markings : CXD2545Q
           HW71963X
Package  : 100 pins.
Purpose  : ?

Mfg'd by : Sony
Markings : CXD1815Q
           722P48E
Package  : 100 pins.
Purpose  : ?

Mfg'd by : Motorola
Markings : MC141658FT
           JBC97201
Package  : 64 pins.
Purpose  : This could be a peripheral driver array.
Nots     : Thanks to Jim Shaw for the hint on this chip.

Mfg'd by : AKM
Markings : AK4309AVM
           1A719N
Package  : 24 pin DIP.
Purpose  : 16bit stereo delta sigma DAC for Multimedia (part of the SPU)
Notes    : Thanks to Jim Shaw for giving me the info on this chip.

Mfg'd by : SEC
Markings : SEC Korea 719
           KM62V256CLT6E-10L
           PWD024XD
Package  : 22 pin DIP.
Purpose  : ?

Mfg'd by : Fujitsu
Markings : 814260-70
           9720 F42
           PJ
Purpose  : 256Kx16 Fast Page DRAM 70ns.  this is the SPU's memory.
Notes    : Thanks to Dan Boris for setting me straight on this chip.

The following IC's were located on the underside of the main PCB.

Mfg'd by : Sony
Markings : CXA1645M
           722K00V
Purpose  : RGB Encoder-RGB analog to composite.
Notes    : Thanks to Jim Shaw for setting straight on this one.

Mfg'd by : ?
Markings : BA6392FP
           723 121
Purpose  : probably a something not very important.

Mfg'd by : ?
Markings : C2030
           SC430930PB
           SSA19721A
Purpose : probably something not very important.

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end of psxchips.txt