Note: 
   I tried to round up all price estimates to the nearest dollar
... so prices may be bloated.  But remember, shipping for parts 
isn't included here.

-neviksti

=================================================================

Cartridge Reader/Writer

$10 - SNES cart connector (from MCM Electronics ... http://www.i-mcm.com/)
$9  - Atmel AT90S8535 microcontroller
$1  - 8Mhz crystal
$1  - Capacitors
        2x 47pF ceramic (or whatever value the crystal needs)
$2  - Octal latches
        2x 74HCT578
$2  - Parallel port connector
$1  - +5V regulator (Texas Instruments: UA78M05CKC)
$1  - Power plug recepticle
$6  - 9V(@ 500 mA) AC/DC wall adapter
$1  - Diode
$1  - Capacitors
        1x 47uF electrolytic
        1x 0.22uF ceramic
$1  - Resistors
        9x 10k Ohms (pull up/down resistors)
??  - Custom printed circuit board

So about $36 + PCB.
The PCB may cost about $30 ... but depends highly on how many people are interested.  
Note: you may already own an acceptable AC/DC wall adapter.
Oh, and if you don't already have one, you'll need a "DB25 Male->Female straight through
cable", your standard SCSI cable for a scanner or whatnot should do fine.


(optional parts)
??  - 40 pin dip socket (for Atmel)

if you want to include 21.477 MHz clock (for reading/writing some special chip carts)
$1  - 21.477Mhz crystal
$1  - capacitor
        2x 47pf ceramic (or whatever value the crystal needs)
$1  - Hex Unbuffered Inverter Gates (74HCU04)
$1  - resistors (for oscillator feedback loop)
        1x 1 MegaOhms
        1x 560 Ohms

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Flash Cart

$5 - 256kbit SRAM (quote from Jameco, product: 62256LP-70)
$4 - NV controller chip (Dallas Semiconductor: DS1210)
$2 - lithium battery holder + CR2032 battery
$1 - PLCC socket
$4 - programmable logic (Atmel: ATF1502AS-10JC ... 44pin PLCC) 
$1 - CIC chip (get from a cheap SNES game)
$1 - Single 2-Input Positive-NOR Gate (Texas Instruments: SN74AHCT1G02)
$1 - Single Bus Buffer Gate With 3-State Output  (Texas Instruments: SN74AHCT1G126)
$1 - capacitors
        1x 22uF cap (electrolytic)
        4x 0.22uF cap (ceramic - axial)
?? - custom printed circuit board (probably go with Advanced Circuits, http://www.4pcb.com/)
?? - flash chip(s)  (from AMD ... the following have compatible pinouts)
        Am29F080B-90SC (8Mbit 2Mx8)
        Am29F016D-90SC (16Mbit 2Mx8)
        Am29F032B-90SC (32Mbit 4Mx8)

So about $20 + PCB + FlashMem.
The PCB may cost about $30 ... but depends highly on how many people are interested.  
Flashmem is roughly 50 cents to $1/Mbit.


(optional parts)
?? - External cartridge connector (from GameGenie)
?? - Plastic cartridge shell (regular type, or GameGenie type)

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*back to snes page*