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DETECT-IT RL78/I1D detector boards kit 5.2.6 Kit User Manual Battery place holder: Each board is equipped with a CR123 battery holder. There is a reverse polarity protection (P-channel MOSFET). Be careful when placing the battery to pay attention to the polarity. Only one battery CR123 is provided into the kit for the 4 boards. Caution: Battery should never be installed when using E1 power supply or external power supply via CN02/CN01 5.2.7 Microcontroller RL78/I1D The Renesas 48-pin RL78/I1D MCU is the main element of the demonstrator board. The reference used in this demonstrator is the biggest component of the family RL78/I1D. It is a 48 pin QFP package with 32kB Flash and 3kB RAM embedded. The part number is: R5F117GCGFB. The 48-pin RL78/I1D MCU has 4 channels of operational amplifier, 2 channels of comparators, and a total of 41 I/O lines (including digital and analog interfaces) 4 headers of 12-pin each that bring out most of the MCU I/O pins. Pins for access to device port: all pins of the RL78/I1D MCU are connected to: Table Description of connector of CO detector UM-YDETECT-IT-RL78 V1.30 Page 28 of 59