rc2014-ym2149
electrified
KiCad schematics and gerbers for a YM sound card for the RC2014. See it in action here: https://www.youtube.com/watch?v=-iLwi9FagFE
Components (15)
| Reference | Value | Description |
|---|---|---|
| U1,U2 | 74HCT138 | Decoder 3 to 8 active low outputs |
| U3 | 74HCT00 | quad 2-input NAND gate |
| U4 | 74HCT74 | Dual D Flip-flop, Set & Reset |
| U5 | YM2149 | Software-Controlled Sound Generator, DIP-40 |
| C1-C5 | 0.1uF | Unpolarized capacitor |
| C6,C7 | 4.7uF | Unpolarized capacitor |
| CON1 | SJ1-3523N | Audio Jack, 3 Poles (Stereo / TRS), Switched TR Poles (Normalling) |
| J2 | IO Out | Generic connector, double row, 02x09, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| JP6 | BASE ADDRESS | Generic connector, double row, 02x09, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| JP7 | YM 1/2 CLK | Jumper, 2-pole, closed/bridged |
| P1 | RC2014 BUS | Generic connector, single row, 01x39, script generated (kicad-library-utils/schlib/autogen/connector/) |
| R1-R3 | 3K | Resistor, small symbol |
| R4,R5 | 1K | Resistor, small symbol |
| R6,R7 | 1K6 | Resistor, small symbol |
| X1 | CXO_DIP8 | Crystal Clock Oscillator, DIP8-style metal package |