Low power consumption, high function general-purpose microcontrollers suitable for motor control as well as industrial and metering applications
RL78/G14 microcontrollers balance the industry's lowest level of consumption current (CPU: 66 μA/MHz, standby (STOP): 240 nA) and a high calculation performance of 51.2 DMIPS (32 MHz). The built-in high-function timer supports three-phase motor control using three-phase complementary PWM output. They have an on-chip oscillator, data flash, A/D and D/A converters, comparator, 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 broad 30 to 100-pin lineup and up to 512 KB on-chip flash memory, these microcontrollers can be used in a wide variety of applications such as motor control and consumer and industrial equipment.
Main Solutions
Key Features:
| ITEM | RL78/G14 | |||||||
|---|---|---|---|---|---|---|---|---|
| Pin Count | 30/32/36 pins | 44 pins | 44 pins | 48 pins | 52/64 pins | 80/100 pins | ||
| Program Flash (KB) | 16 to 128 | 16 to 192 | 16 to 256 | 16 to 512 | 32 to 512 (52-pin: Up to 256 KB) |
96 to 512 | ||
| Data Flash (KB) | ROM 96 KB or more | 8 | ||||||
| ROM 64 KB or less | 4 | (No applicable products) | ||||||
| SRAM (KB) | 2.5 to 16 | 2.5 to 20 | 2.5 to 24 | 2.5 to 48 | 4 to 48 (52-pin: Up to 24 KB) |
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) |
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| 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) |
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| 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 ℃) |
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| 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) |
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Pin Count / Memory Size Lineup:
Program Flash
SRAM
- *1 : 4.5KB available when the self-programing function is used.
- *2 : 23KB available when the self-programing function is used.
- *3 : 47KB available when the self-programing function is used.
- *4 : 64pin-LQFP(14×14)products do not exist.
Block Diagram:
| 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 |
|---|---|
| Web Simulator | RL78/G14 Web Simulator supporting initial evaluation for development now available |
| CS+ | An integrated development environment that can be used for coding, assembling/compiling, and simulation. (Also included with Renesas Starter Kits.) |
| e2 studio | Renesas eclipse embedded studio, known as e² studio, is a complete development and debug environment based on the popular Eclipse CDT project. |
| E1 | A standard Renesas on-chip debugging emulator that enables users to carry out ample debugging for real development at low cost. (Also included with starter kits.) |
| Renesas Starter Kit | All the development tools you need for MCU evaluation and getting started. Also recommended for training. |
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. |
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