Compact, low power, high function general-purpose microcontrollers ideal for sub-microcontrollers

 

RL78/G12 microcontrollers balance the industry's lowest level of consumption current (CPU: 63 μA/MHz, standby (STOP): 230 nA) and a high performance of 32.4 DMIPS (24 MHz). They have an on-chip oscillator, data flash, A/D converter, and more. Built-in safety features (function that detects illegal operation of hardware) enable support for the household appliance safety standard (IEC/UL 60730). With a 20 to 30-pin compact package lineup, these microcontrollers are perfect for sub-microcontrollers of small appliances and consumer and industrial equipment.

 

Key Features:

ITEM RL78/G12
Pin Count
20 pins 24 pins 30 pins
CPU Core RL78 core
Prpgram Flash (KB) 2 to 16 4 to 16  
Data Flash (KB) 2
(R5F1026x)
2
(R5F1027x)
2
(R5F102Ax)
SRAM (B)  256 to 1.5 K 512 to 1.5 K 512 to 2 K
Main System Clock High-speed system clock(fMX) X1 (crystal/ceramic) oscillation, external main system clock input (EXCLK): 1 to 20 MHz (VDD = 2.7 to 5.5 V), 1 to 8 MHz (VDD = 1.8 to 5.5 V)
High-speed on-chip oscillator clock (fIH) 1 to 24 MHz (VDD = 2.7 to 5.5 V), 1 to 16 MHz (VDD = 2.4 to 5.5 V), 1 to 8 MHz (VDD = 1.8 to 5.5 V)
Low-speed on-chip oscillator clock   15 kHz (VDD = 1.8 to 5.5 V
I/O port Total 18 22 26
CMOS I/O 12 (N-ch O.D. output: 4) 16 (N-ch O.D. output: 5) 21 (N-ch O.D. output: 9)
CMOS input 4 5 9
N-ch open drain I/O (6 V tolerance) 2
Timer 16-bit (TAU) 4 8
12-bit interval timer 1
Watchdog timer 1
Timer output 4(PWM output:3) 8(PWM output:3)
Serial Interface CSI:1 ch/
UART:1 ch
0 to 1 Unit
CSI:2 ch/simplified I²C:2 ch/UART:1 ch 0 to 1 Unit -
CSI:1 ch/simplified I2C:1 ch/UART:1 ch - 3 Unit
I²C bus 1 channels
8/10-bit resolution A/D converter 11 channels 8 channels
Clock/Buzzer output 1 2
Power-on reset on
DMA 0 to 2 channels
External interrupt pins 10 14 6
Multiplier/divider/multiply-accumulator Multiplication/Division multiply library support (unit operations)
Safety Function RAM parity error detection
Invalid memory access detection
Frequency detection
A/D converter testing
CRC calculation(General purpose)
RAM guarding
SFR guarding
R5F1026x R5F1027x R5F102Ax
On-chip debug on
Power supply voltage VDD=1.8 to 5.5V
Operating ambient temperature TA = - 40 to + 85 ℃ (A-version for consumer applications and D-version for industrial applications)
TA = - 40 to + 105 ℃(G-version for industrial applications)

※ When I use data flash, an exclusive library (approximately 8.1 K byte) is necessary.

Pin Count / Memory Size Lineup:

Program Flash
SRAM

512KB
32KB
              *3*4 *3*4 *3*4 *3*4 *3*4 *3*4 *3*4 *3*4 *3*4 *3*4 *3*4 *3*4
384KB
24KB
              *4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4 *4
256KB
20KB
              *2 *2 *2 *2 *2 *2 *2 *2 *2 *2 *2 *2*4
192KB
16KB
            *4
128KB
12KB
       
96KB
8KB
       
64KB
4KB
*1 *1 *1 *1 *1 *1 *1 *1 *1 *1 *1 *1 *1 *1          
48KB
3KB
         
32KB
2KB
         
16KB
2KB
                 
16KB
1.5KB
                                 
12KB
1KB
                               
8KB
768B
                               
4KB
512B
                               
2KB
256B
                                   
Pins
Package
20
LSSOP
24
HWQFN
25
WFLGA
30
LSSOP
32
HWQFN
36
WFLGA
40
HWQFN
44
LQFP
48
LFQFP
48
HWQFN
52
LQFP
64
LQFP
64
LFQFP
64
VFBGA
80
LQFP
80
LFQFP
100
LQFP
100
LFQFP
128
LFQFP
  • RL78/G12
  • RL78/G13
  • *1 : 3KB available when the self-programing function is used.
  • *2 : 19KB available when the self-programing function is used.
  • *3 : 31KB available when the self-programing function is used.
  • *4 : -40 to 105℃ products do not exist.

 

Block Diagram:

您可以在此处找到可订购器件号的说明.

 

软件和硬件支持信息

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常见问题 常见问题和有用的发展提示。
论坛 论坛和社区站点,可与使用瑞萨产品的其他人共享技术信息,问题和意见。

 

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
Characteristics data Information on observed values. Please use this as reference data when developing your set.
Oscillation circuit characteristics The resonators for which the operation is verified and their oscillator constants are shown below.
您可以使用下方的筛选器来筛选样例程序和应用手册。

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