Sega Dreamcast Components
IC BD KATANA MAIN VA1 837-13778

VA1 171-7965C (-X1, -X2, -X3)

IC1XX

• IC101: Main CPU: SH4
• IC102: 64Mb SDRAM
• IC103: 64Mb SDRAM
• IC104: Series Voltage Regulator: PQ07VZ1H2Z
• IC105: TC7W241FU or SN74AHC2G241H DCT TI
• IC106: CMOS Voltage Regulator RN5RG25A

IC106 NOTE:
For IC201:315-6201/315-6225, IC106:313-5612
IC106 NOTE:
For IC201:315-6226, IC106:313-5553

IC2XX

• IC201: Holly Graphics Engine: 315-6201, 315-6225, 315-6226, 315-6226-X1
• IC202: 16Mb SDRAM
• IC203: 16Mb SDRAM
• IC204: 16Mb SDRAM
• IC205: 16Mb SDRAM
• IC206: Power-on Reset: RN5VD27A

IC3XX

• IC301: AICA Sound Processor 315-6119, 315-6232
• IC302: 16Mb SDRAM
• IC303: DAC: PCM1725
• IC304: NJM2100M
• IC305: Clock Generator: W129A

IC4XX

• IC401: RGB Encoder: BU1426KS

IC5XX

• IC501: Boot ROM: MPR-21931

Power Supply

• Switching power supply control: FA5317