U3
MOS 6532 (Atari part CO10750)
RAM/IO
DIP-40
RAM-I/O-Timer
Used on 1 board
Open a board to see where this part sits on it.
About this component
The RIOT supplies all 128 bytes of the 2600's work RAM, reads the joysticks and console switches through its two 8-bit ports, and provides the programmable timer games use to time the vertical blanking period. A faulty RIOT typically shows as crashes, garbage or unresponsive controls.
What it does on this board
Provides the 128 bytes of RAM, I/O ports and a timer.
Pinout & readings
No pinout or reference readings yet — these show what each pin does and what a healthy part should measure.