Atari 130XE 320K Upgrade v3.0.kicad_pcb
author: Waynetho
2 layer board of 1.07 x 2.14 inches (27.1 x 54.4 mm)
Uploaded:
October 04, 2026
Shared:
October 21, 2026
Total Price:
$11.40
Requires one SN74LS158DR and one SN74LS32 (both narrow-body), one 33 ohm 1206 resistor, one 40 pin strip of turned machined pin header strip, cut into two 20 pin strips, one single-pin horizontal header for RA8 (J2), and one 40 pin socket.
Socket the PIA chip (6520) and right row of ramchips. Run a wire between all pin-1 pins on the right row of ram sockets and attach header plug (Dupont connector) for RA8 connection on module. Install 256k ramchips in sockets. Install module underneath PIA and attach RA8 wire from RAM socket pin-1. That’s it.
Requires one SN74LS158DR and one SN74LS32 (both narrow-body), one 33 ohm 1206 resistor, one 40 pin strip of turned machined pin header strip, cut into two 20 pin strips, one single-pin horizontal header for RA8 (J2), and one 40 pin socket.
Socket the PIA chip (6520) and right row of ramchips. Run a wire between all pin-1 pins on the right row of ram sockets and attach header plug (Dupont connector) for RA8 connection on module. Install 256k ramchips in sockets. Install module underneath PIA and attach RA8 wire from RAM socket pin-1. That’s it.
