True Low Power Platform (as low as 46 uA/MHz), 2.0 to 5.5V Operation, 1 to 4 Kbyte Flash for General Purpose Applications Ultra-Low Power Technology • 2.0 to 5.5 V operation from a single supply Extended-Function Timers • Multi-function 16-bit timers: Up to 4 channels • Interval timer: 12-bit, 1 channel (only for 16-pin product) • 15 kHz watchdog timer: 1 channel • Instruction execution: 78 % of instructions can be executed in 1 to 2 clock cycles • CISC architecture (Harvard) with 3-stage pipeline • Multiply: 8 x 8 to 16-bit result in 2 clock cycles • 16-bit barrel shifter for shift & rotate in 2 clock cycle • 1-wire on-chip debug function Main Flash Memory • Flash memory rewritable voltage: 4.5 to 5.5 V • 128 to 512 Byte size options • Supports operands or instructions • Back-up retention in all modes High-speed On-chip Oscillator • 20 MHz with +1-2 % accuracy over voltage (2.0 to Rich Analog • Internal reference voltage (0.815 V (typ.)) • Comparator: 1 channel (only for 16-pin product) Safety Features • Detects execution of illegal instruction • Detects watchdog timer program loop • Open-drain, internal pull-up support External Interrupt • External interrupt input: Up to 4 Operating Ambient Temperature Reset and Supply Management Package Type and Pin Count • Selectable power-on reset (SPOR) generator • SSOP: 10 and 16 pin with 4 setting options Multiple Communication Interfaces • 1 x l2C multi-master (only for 16-pin product)

Under development The functions mounted depend on the product. See 1.6 Outline of Functions.

1.2 List of Part Numbers Figure 1-1. Part Number, Memory Size, and Package of RL78/G10 Part No. R 5 F 1 0 Y 1 6 A S P #V0 Packaging style #V0: Tray #X0: Embossed Tape #30: Tray #50: Embossed Tape Package type: SP: 10-pin, LSSOP, 0.65 mm pitch 16-pin, SSOP, 0.65 mm pitch A: Consumer applications, operating ambient temperature : -40 °C to 85 °C RL78/G10 group: 10Y Memory type: F: Flash memory Renesas semiconductor product Table 1-1. List of Ordering Part Numbers Pin count Part Number Note 16-pin plastic SSOP (4.4 5.0 mm, 0.65 mm pitch) Under development Caution The part number represents the number...

• 10-pin plastic LSSOP (4.4 x 3.6 mm, 0.65 mm pitch) Remarks 1. For pin identification, see 1.4 Pin Identification. 2. Functions in parentheses in the above figure can be assigned via settings in the peripheral I/O redirection register (PIOR). See Figure 4-6 Format of Peripheral I/O Redirection Register (PIOR) in the • 16-pin plastic SSOP (4.4 x 5.0 mm, 0.65 mm pitch) Remarks 1. For pin identification, see 1.4 Pin Identification. 2. Functions in parentheses in the above figure can be assigned via settings in the peripheral I/O redirection <R> register (PIOR). See Figure 4-6 Format of Peripheral...

: Analog Input : External Interrupt Input : Programmable Clock Output/ Buzzer Output : External Clock Input : Crystal Oscillator : Comparator Input : Comparator Output : Comparator Reference Input : Receive Data : Serial Clock Input/Output : Serial Clock Output : Serial Data Input/Output : Serial Data Input : Serial Data Output : Timer Input : Timer Output : Data Input/Output for Tool : Transmit Data : Power Supply

1.5 Block Diagram 1.5.1 10-pin products Buzzer/clock output control Interrupt control On-chip debugger Clock generator + Reset generator Selectable power-onreset Low-speed on-chip oscillator 15 kHz Watchdog timer Low-speed on-chip oscillator High-speed on-chip oscillator 1.25 to 20 MHz

Buzzer/clock output control Clock generator + Reset generator On-chip debugger Watchdog timer Low-speed on-chip oscillator Low-speed on-chip oscillator 15 kHz Interrupt control High-speed on-chip oscillator 1.25 to 20 MHz

1.6 Outline of Functions This outline describes the function at the time when Peripheral I/O redirection register (PIOR) is set to 00H. Item Code flash memory High-speed system X1, X2 (crystal/ceramic) oscillation, external main system clock input (EXCLK): 1 to 20 MHz: VDD = 2.7 to 5.5 V 1 to 5 MHz: VDD = 2.0 to 5.5 V High-speed on-chip oscillator clock Low-speed on-chip oscillator clock General-purpose register Minimum instruction execution Data transfer (8 bits) Adder and subtractor/logical operation (8 bits) Multiplication (8 bits 8 bits) Rotate, barrel shift, and bit manipulation (set, reset,...

On-chip debug function Operating ambient temperature Power supply voltage The number of outputs varies, depending on the setting of channels in use and the number of the master The illegal instruction is generated when instruction code FFH is executed. Reset by the illegal instruction (see 6.9.4 Operation as multiple PWM output function in the RL78/G10 User’s Manual). execution not issued by emulation with the on-chip debug emulator. 3. Use this product within the voltage range from 2.25 to 5.5 V because the detection voltage (VSPOR) of the selectable power-on-reset (SPOR) circuit should also...

Cautions 1. The RL78 microcontrollers have an on-chip debug function, which is provided for development and evaluation. Do not use the on-chip debug function in products designated for mass production, because the guaranteed number of rewritable times of the flash memory may be exceeded when this function is used, and product reliability therefore cannot be guaranteed. Renesas Electronics is not liable for problems occurring when the on-chip debug function is used. 2. The pins mounted depend on the product. Refer to 2.1 Port Functions and 2.2.1 Functions for each product in the RL78/G10 User’s...

2.1 Absolute Maximum Ratings (TA = 25C) Parameter Supply Voltage Output current, high Output Voltage Input Voltage Operating ambient temperature Storage temperature Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded. Remarks 1. Unless specified otherwise, the characteristics of alternate-function...