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RL78/G14

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The following page content corresponds to the products marketed in Japan.
If you do not live in Japan, please

Product Overview:

RL78/G14 Group microcontrollers employ the RL78 core which realizes high processing performance while delivering the lowest power consumption in their class, and have enhanced computing power and peripheral functions suitable for motor control and other applications.
In addition to a high-precision (±1%) on-chip oscillator enabling 32 MHz CPU operation and other standard on-chip functions from the RL78/G13, the RL78/G14 microcontrollers have multiply and divide and multiply-accumulate instructions capable of faster processing than the RL78/G13, and functions from the R8C Family with proven track records, such as timers RD/RG/RJ, data transfer controller, and event link controller, helping to lower the total cost of building a system and contributing to more compact size and lower power consumption.
In addition, abundant functions for supporting functional safety, such as an A/D converter testing function, are also on-chip.
With 30 to 100-pin packages, these products are suitable for inverter motor control, home appliances, mobile devices, healthcare devices, and other consumer electronics, office equipment, industrial equipment, and so on.

Pin Count / Memory Size Lineup:

map_rl78g14

Block Diagram:

Block Diagram image

Key Features:

Functions 30/32/36 pins 44 pins 44 pins 48 pins(*) 52/64 pins(*) 80/100 pins(*)
Code Flash ROM(KB) 16 to 128 16 to 192 16 to 256 16 to 512 32 to 512 96 to 512
Data Flash (KB) ROM 96 KB or more 8
ROM 64 KB or less 4 (No applicable products)
RAM (KB) 2.5 to 16 2.5 to 20 2.5 to 24 2.5 to 48 4 to 48 12 to 48
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 16 MHz (VDD=2.4 to 5.5 V), 1 to 8 MHz (VDD = 1.8 to 5.5 V), 1 to 4 MHz (VDD = 1.6 to 5.5 V)
High-speed on-chip oscillator clock (fIH) 1 to 32 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),1 to 4 MHz (VDD=1.6 to 5.5 V)
* Only Timer RD can be operated at 48, 64 MHz(fHOCO)
Subsystem Clock - XT1 (crystal) oscillation, external subsystem clock input (EXCLKS) 32.768 kHz
Low-speed on-chip oscillator clock 15 kHz
I/O port Total 26/28/32 36 40 44 48/58 74/92
CMOS I/O 21/22/26 28 31 34 38/48 64/82
CMOS input 3/3/3 5 5 5 5 5
CMOS output - - - 1 1 1
N-ch open drain I/O (6 V tolerance) 2/3/3 3 4 4 4 4
Timer 16-bit TAU 4 channels, PWM output x 3 8 channels, PWM output x 6
Timer RJ 1 channel
Timer RD 2 channels, PWM output x 6
Timer RG 1 channel, PWM output 1
Real-time clock (RTC) 1 channel
RTC output (1 Hz) - 1 channel ( fSUB = 32.768 kHz)
12-bit interval timer 1 channel
Watchdog timer 1 channel
Clock output/buzzer output 2 channels
Serial Interface CSI:1ch/UART:1ch/simplified I2C:1ch 2/2/1 1 1 1 1/- -
CSI:2ch/UART:1 ch/simplified I2C:2 ch -/-/1 1 1 1 1/2 3
CSI:1 ch/UART(supporting LIN-bus):1 ch /simplified I2C:1 ch 1 1 1 - - -
CSI:2 ch/UART(supporting LIN-bus):1 ch /simplified I2C:2 ch - - - 1 1 1
I2C 1 channel 2 channels
8/10-bit resolution A/D converter 8 channels 9 channels 10 channels 12 channels 17/20 channels
8-bit D/A converter (ROM 96 KB or more) 1/2/2 channels 2 channels
Comparators (ROM 96 KB or more) 2 channels (Supported window function)
Data transfer control (DTC) ROM 96 KB or more 30 sources 31 sources 32 sources 32/33 sources 39 sources
ROM 64 KB or less 28 sources 29 sources 30 sources 30/31 sources (No applicable products)
Event link controller (ELC)) Event input ROM 96 KB or more 21 22 26
ROM 64 KB or less 19 20 (No applicable products)
Event trigger output ROM 96 KB or more 8/9/9 9 9
ROM 64 KB or less 7 7 (No applicable products)
External interrupt pins 6 10 13 15/19 20
Multiplier/divider/multiply-accumulator Multiple instruction, divide instruction and multiply-accumulator instruction are supported
Safety Function WDT, TRAP instruction, flash memory CRC operations, RAM parity error detection, invalid memory access detection, frequency detection, RAM guarding, SFR guarding, A/D converter testing, I/O port output signal level detection function
On-chip debug Provided (Supported trace function with ROM 96 KB or more products)
Power-on-reset circuit Power-on-reset: 1.51 V, Power-down-reset: 1.50 V
Voltage detector 1.63 to 4.06 V (14 stages)
Power supply voltage VDD = 1.6 to 5.5 V (TA = -40 to +85 ℃)
VDD = 2.4 to 5.5 V (TA = -40 to +105 ℃)
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)

(*)ROM 384 KB/RAM 32 KB products and ROM 512 KB/RAM 48 KB products are under development.

Key Applications:

  • Consumer Electronics, Industrial

Product Lineup:


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