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.


RL78/G1D microcontrollers support Bluetooth® low energy and realized the lowest level of current consumption in the industry at 4.3 mA RF transmission current (0 dBm output) and 3.5 mA RF receiving current. Since circuit elements necessary for connecting an antenna are built in, not only does this simplify circuit design for the antenna connection, but it also helps reduce the cost of the end product because external parts are not needed. The software stack also supports wireless updating of software, helping to make maintenance of user software more efficient.

The RL78/G1D module contains the RL78/G1D, a 32 MHz crystal resonator for RF chip, and an antenna, all in a compact (8.95 x 13.35 x 1.7 mm) module. Moreover, the module inherits the functional pins of the RL78/G1D, so not only can you use it for modem configuration, but you can also leverage the strengths of the microcontroller for embedded configuration. The module has obtained Radio Law (Japan, FCC, IC, and CE) and Bluetooth SIG certification.

Product Status: Mass Production
Family: RL78
Series: RL78/G1x
Group: RL78/G1D


Program memory
256 KB Flash memory
20 KB
Data Flash
8 KB
CPU (Bit, Clock, DMA, External Bus etc)
RL78 (16-bit)
Max. Frequency
32 MHz
Sub-Clock (32.768 kHz)
On-chip Oscillator Freq.
High-Speed: 32, 24, 16, 12, 8, 4, 1MHz
Low-speed: 15kHz
Real-Time Clock (RTC)
Power-On Reset
Low Voltage Detection
DMA Remarks
DMAC x 4 ch
External Interrupt Pins
I/O Ports
8-bit Timers
8 ch
16-bit Timers
8 ch
Watchdog Timers
1 ch
Other Timers
12-bit Interval Timer x 1 ch
PWM Output
A/D Converters
10-bit x 8 ch
4 ch
2 ch
3 ch
Operating Conditions
Operating Voltage
1.6 to 3.6 V
Operating Temperature
-25 to 75 ℃ (Ambient Temperature)
Bluetooth Low Energy,
Module is included Crystal for RF and Antenna.
Size is 8.95x13.35x1.7mm.
RY7011A0000DZ00#001:2,500 pcs/Reel
RY7011A0000DZ00#002:100 pcs/Reel

You can find an explanation of orderable part numbers here.


Resources for Software and Hardware

Title Description
My Renesas Create a My Renesas account to use our tool download services, receive e-newsletter/update notifications, and take advantage of our other services.
e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
Forum A forum and community site to share technical information, questions and opinions with others who use Renesas products.


Software Design Support

Title Description
e² studio This integrated development environment (IDE) is based on the popular combination of the open-source Eclipse IDE and its CDT plug-in that enables C/C++ language development.
CS+ This integrated development environment (IDE) can be used for coding, assembly, compiling, and simulation. CS+ is also included with starter kits.
E2 emulator Lite This entry-level on-chip debugging emulator provides functionality equivalent to that of the E1 emulator at a low price.
E2 emulator This on-chip debugging emulator has advanced features that improve the efficiency of development. In addition to the basic functions from debugging to flash programming, this emulator supports hot plug-in and external triggers as standard items. This emulator also helps to reduce development time by downloading at high speeds (compared to the E1 emulator) and the ability to work in combination with various solutions such as the tuning of current drawn by systems under development.
E1 emulator This on-chip debugging emulator is a standard model which provides basic debugging functions (production is to be discontinued at the end of December 2019).


Hardware Design Support

Title Description
Oscillation circuit characteristics The resonators for which the operation is verified and their oscillator constants are shown below.
You can filter the sample codes and application notes that are displayed using the below filters.

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