R01UH0575EJ0120 Rev. 1.20 Page 1 of 920
Dec 22, 2016
RL78/G1H
RENESAS MCU
CHAPTER 1 OUTLINE
RL78/G1H is a microcontroller equipped with the low-power-consumption RF transceiver compatible with the SubGHz-
band wireless communication. The wireless communication in the SubGHz band is best for the smart meter
communication part, HEMS controller, wireless sensor network, etc.
1.1 Features
Ultra-low power consumption technology
• Standby function of MCU: HALT mode, STOP mode, SNOOZE mode
• Standby function of RF unit: DLE mode, SLEEP mode
• RF operation transmission current: 21 mA (TYP.) (RF; 100 kbps, 2FSK, +10 dBm, 3.0 V/
at STOP mode of MCU)
: 36 mA (TYP.) (RF; 100 kbps, 2FSK, +13 dBm, 3.0 V/
at STOP mode of MCU)
• RF operation reception current: 6.9 mA (TYP.) (RF; 100 kbps, 2FSK, 3.0 V/at STOP mode of MCU)
• RF operation SLEEP mode (POWER_DOWN mode) current:
0.1 μA (TYP.) (3.0 V/at STOP mode of MCU)
RL78 CPU core
• CISC architecture with 3-stage pipeline
• Minimum instruction execution time: Can be changed from high speed (0.03125 μs: @ 32 MHz operation with high-
speed on-chip oscillator) to ultra-low speed (30.5 μs: @ 32.768 kHz operation with subsystem clock)
• Address space: 1 MB
• General-purpose registers: (8-bit register × 8) × 4 banks
• On-chip RAM: 24 to 48 KB
On-chip RF transceiver
• IEEE802.15.4g standard specification SubGHz-band transceiver
• RF frequency range: 863 to 928 MHz
• Modulation method: 2FSK/GFSK, 4FSK/GFSK
• Data rate: 2FSK/GFSK 10 to 300 kbps, 4FSK/GFSK 200/400 kbps
• Forward error correction (FEC) function
Code flash memory
• Code flash memory: 256 to 512 KB
• Block size: 1 KB
• Prohibition of block erase and rewriting (security function)
• On-chip debug function
• Self-programming (with boot swap function/flash shield window function)
R01UH0575EJ0120
Rev. 1.20
Dec 22, 2016
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