Bluetooth® low energy microcontrollers for smart connectivity, with the lowest level of current consumption in the industry. Compact module with built-in 32 MHz crystal resonator for RF chip and antenna (already certified) is also available.

Low Power Technology (3.0V / MCU part: STOP ):
RF transmitter active: 4.3 mA (TYP.)
RF receiver active: 3.5 mA (TYP.)
On-Chip RF Transceiver:
Bluetooth v4.2 Specification (Low Energy Single mode)
2.4 GHz ISM Band, GFSK modulation, TDMA/TDD Frequency Hopping (included AES encryption circuit)
Adaptivity, exclusively for use in operation as a slave device
Single ended RF interface
16-bit RL78-S2 CPU Core
Main Flash Memory:
128 KB / 192KB / 256 KB (Block size: 1 KB)
On-chip single voltage flash memory with protection from block erase/writing
Self-programming with secure boot swap function and flash shield window function
RAM:
12 KB / 16KB / 20 KB size
Supports operands or instructions
Back-up retention in all modes