• ICU = ARMv5 946E (all models?) (Digic ?)
• DIGIC IV = Digging Into 'DIGIC 4' Image Processor (2)
• DIGIC5+ = Canon Digic 5+ (CH4-6501) - Chipworks. co-designed with TI
• MPU = Toshiba TX19A43 (manages I/O). See below
• FPGA. it seems 5d2 and 50d (FPGA config files mention in bootcode)
  • 5d2: K218cfg.bin written at 0xF8760000 in Flash. See CHDK forum
  • 50d: K261cfg.bin written at 0xF8760000
• AK4646 audio IC (on 550D, 50D, 60D, 5Dm2)
  • AK4636 audio IC (500d only)
  • AK4950 (650D). See Chipworks
• Texas Instruments TMS320DM36x Digital Media System-on-Chip (DMSoC) Video Processing Front End (VPFE) User's Guide (5dm2)
• Samsung NOR flash : K8P2815UQB-DI4B (on 7D)

• On 600D:
  • Audio chip: Oki ML26121A technical description
    • Oki becomes Lapis: www.lapis-semi.com
    • programming guide for NEC 78K0R/Kx3, which uses Oki ML2612 as audio codec
    • Datasheet (including register map): PEDL26121A_V208.pdf
  • 32bit microcontroller: Toshiba TMP19A43CDXBG. CD : Rom = 512kbytes, RAM=24kbytes
    • See CHDK thread about it. and Wiki page about HV30 hacking. See Tx19a
  • 1Gb E-die DDR2 SDRAM: Samsung K4T1G164QE
  • multi-function LCD segment driver: Rohm bu97930muv
  • PROGRAMMABLE 27-BIT DISPLAY SERIAL INTERFACE TRANSMITTER: Texas Instrument LVDS301
  • Real Time Clock (RTC) seems to be related to RICOH R2051 Series ( http://www.ricoh.com/LSI/product_rtc/2wire/r2051k/r2051k-e.pdf ). At least the commands/registers are similar.
• on 7D
  • Flash memory: Samsung K8P2815UQB / (unknown)
  • 3 x 1Gb E-die DDR2 SDRAM: Samsung K4T1G164QE
• on 50D (See photos)
  • Toshiba TMP19A43FDXBG. See 600d. FD : Rom/Flash = 512kbytes, RAM=24kbytes.
  • Flash memory: Samsung K8P3215ubq
  • DDR2 SDRAM: Elpida E1116AESE
  • FPGA Xilinx : 3s250e
  • LCD Driver: Sanyo LC75835
  • is there a MIPS JTag 20 pins interface bottom to the TMP19A microcontroller (which is MIPS32) ? like on the HV30
  • Low backup voltage serial interface real time clock Epson Rx-4571 NB http://www.datasheetpro.com/837729_download_R4571_datasheet.html
• 650D / T4i : See Chipworks
• WFT4:
  • Tx19a
  • Renesas m66596 USB controller

See also: Circuit boards photos