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ssc
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CMOS logic for the bus transceiver appears to have issues with ROM decode.

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Christopher RYU 2023-03-10 06:40:10 +09:00
parent 286b063f41
commit 2ef7327b4b
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@ -24,7 +24,7 @@ with what made the layout easier.
## Parts List
* A 74HCT245 octal bus transceiver (U1)
* A 74LS245 octal bus transceiver (non-TTL appears to have issues with the ROM address decode logic) (U1)
* A 28C256 EEPROM (U2)
* A 1.8432 MHz 5V oscillator (U3)
* A 22V10 GAL (any speed or variety should work) (U4)