Integrated Circuit Chips

There are several different types of chips used in NerdConsole.

Processor

• 65C02 CPU

RAM

System RAM in NerdConsole should operate at 55ns or faster.

• AS6C62256 32KB RAM
• AS6C4008 512KB RAM

ROM

Cartridge ROM in NerdConsole should operate at 150ns or faster.

• AT28C64 8KB ROM
• AT28C256 32KB ROM
• W27C512 64KB ROM
• SST39SF010 128KB ROM
• SST39SF020 256KB ROM
• SST39SF040 512KB ROM

Audio

• YM-3812 Audio
• YM-3014 DAC
• OPA2132 2x OpAmp
• NE5532 2x OpAmp

Logic

• 74HCT00 4x 2-Input NAND
• 74HCT08 4x 2-Input AND
• 74HCT14 6x Inverter
• 74HCT30 1x 8-Input NAND
• 74HCT32 4x 2-Input OR
• 74HCT139 2x 2 to 4 Line Decoder
• 74HCT238 1x 3 to 8 Line Decoder
• 74HCT240 8x Inverting Buffer
• 74HCT273 8x D-Type Flip-Flops

Clock

• Crystal Oscillator

Reset

• DS1813 Reset Manager