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Datasheets

ICU 32KB EEPROM in R and RP : https://www.rohm.com/products/memory/serial-eeprom/standard/spi-bus/br25g256fvt-3-product

MPU (Digic3,4,+4): TMP19A43CDXBG
MPU EEPROM 2KB in R and RP : BR25L160FV-WE2 https://media.digikey.com/pdf/Data%20Sheets/Rohm%20PDFs/BR25Lxxx-W%20Series.pdf
MPU (Digic8,X) : TMPM440FEXBG JP only, no eng version https://www.e-nexty.com/product_files/download?lc_code=ja&maker_code=TOS&product_file_id=4598752&product_id=3268005&product_part_number=TMPM440FEXBG&search_log_id=2766235. https://toshiba.semicon-storage.com/eu/semiconductor/product/microcontrollers/tx04-series/detail.TMPM440FEXBG.html#documents. TMPM440 Group https://device.report/m/093bffbdd00dee5f233f40d79cde8e4f56e2528414134a3383128448e31f1a79.pdf. 32bits, 768kb flash rom. 80kb RAM (56+8+16).

2 memory chips in R6 : Micron D9WRB https://www.micron.com/products/dram/lpdram/part-catalog/mt53e256m32d2ds-053-wt. 200 balls, LPDDR4, 8Gb
Digic X : on R6, marking are 8CK103CR3, CH4-7063, 2007W36
on R6 = Dialog 9213 C6, 1952 ECAB: likely https://www.renesas.com/sg/en/document/dst/da9213-da9214-and-da9215-datasheet. Auto Grade Multi-Phase 5A/Phase Buck Converter. Close to multiple capacitors.
R6 : 2 times TPH8R903NL https://www.mouser.com/datasheet/2/408/TPH8R903NL_datasheet_en_20140218-1915982.pdf

FZC connector: 8 pin, 0.4 mm pitch, black, 2 row solder pads. Non-ZIF connector type for FFC/FPC. https://www.jst-mfg.com/product/pdf/eng/eFZC.pdf Remark: FZC and FZA FFC/FPC are almost identical.
FZA connector: 8 pin, 0.4 mm pitch, black, single row solder pads. Flat orientation. Non-ZIF connector type for FFC/FPC found in R6. https://www.jst-mfg.com/product/pdf/eng/eFZA.pdf FZC and FZA FFC/FPC are almost identical.
SUR connector: various pin number, 0.8 mm pitch, white. Single row solder pads. Two orientations: Flat/parallel to PCB or “standing”.* https://www.jst-mfg.com/product/pdf/eng/eSUR.pdf
XSR connector: 6 pins, 0.6 mm pitch, white. Single row solder pads. Flat/parallel orientation only. https://www.jst-mfg.com/product/pdf/eng/eXSR.pdf

* In Canon cameras only “top entry” SUR exists. If yoo ever come across a white flat/side entry UART connector: That is an XSR connector with different pitch!