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F24 Datasheet(PDF) 39 Page - Renesas Technology Corp |
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F24 Datasheet(HTML) 39 Page - Renesas Technology Corp |
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39 / 210 page  RL78/F23, F24 2. PIN FUNCTIONS R01DS0446EJ0120 Rev.1.20 Page 39 of 207 Dec 31, 2025 Table 2-3. List of RL78/F23 Pins Other than Port Pins (5/5) Pin Function I/O Function Pin Count 80-pin 64-pin 48-pin 32-pin EXCLK Input External clock input for main system clock √ √ √ √ EXCLKS Input External clock input for subsystem clock √ √ √ ⎯ X1 ⎯ Resonator connection for main system clock √ √ √ √ X2 ⎯ √ √ √ √ XT1 Note ⎯ Resonator connection for subsystem clock √ √ √ ⎯ XT2 Note ⎯ √ √ √ ⎯ RESET Input External reset input √ √ √ √ REGC ⎯ Regulator output stabilization capacitance connection for internal operation. Connect to VSS via the capacitor (0.47 to 1 μF). √ √ √ √ VDD ⎯ Positive power supply for the P33, P34, P80 to P87, P90 to P97, P121 to P124, P137, and RESET pins √ √ √ √ EVDD0 ⎯ Positive power supply for the pins that are not connected to VDD √ √ ⎯ ⎯ AVREFP Input A/D converter reference voltage (+ side) input √ √ √ √ AVREFM Input A/D converter reference voltage (- side) input √ √ √ √ VSS ⎯ Ground potential for the P33, P34, P80 to P87, P90 to P97, P121 to P124, P137, and RESET pins √ √ √ √ EVSS0 ⎯ Ground potential for the pins that are not connected to VSS √ √ ⎯ ⎯ TOOLRXD Input UART reception pin for the external device connection used during flash memory programming √ √ √ √ TOOLTXD Output UART transmission pin for the external device connection used during flash memory programming √ √ √ √ TOOL0 I/O Data input/output for flash memory programmer/debugger √ √ √ √ Note Do not use the XT1 and XT2 pin functions in grade-5 products. |
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