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RL78/G1A
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Product Overview:
RL78/G1A Group microcontrollers employ the RL78 core which realizes high processing performance while delivering the lowest power consumption in their class, and have an enhanced A/D conversion circuit.
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/G1A microcontrollers have a built-in A/D conversion circuit with 12-bit precision accuracy enabling fine-grained control and support up to 28 channels of analog input, allowing them to be used for a wide range of system control applications, for example sensor systems.
In addition, abundant functions for supporting functional safety, such as an A/D converter testing function, are also on-chip.
With ultra-small packages such as 25-pin LGA (3 x 3 mm) and 64-pin BGA (4 x 4 mm) ideal for compact devices, these products are suitable for devices having a sensor, such as industrial equipment, office equipment, and home appliances, mobile devices, healthcare devices, and other consumer electronics.
Pin Count / Memory Size Lineup:
Block Diagram:
Key Features:
Operating voltage: VDD = 1.6 to 3.6 V
Max. frequency: 32 MHz
ROM capacities: 16 KB to 64 KB flash memory
RAM capacities: 2 KB to 4 KB
Data flash: 4 KB
Pin count and Packages: 25-pin LGA, 32-pin QFN, 48-pin QFP, QFN, 64-pin QFP, BGA
Minimum instruction execution time can be changed from high speed (0.03125 µs: @ 32 MHz operation with highspeed system clock) to ultra low-speed (61 µs: @ 32.768 kHz operation with subsystem clock)
General-purpose register: 8 bits x 32 registers (8 bits x 8 registers x 4 banks)
On-chip internal high-speed oscillation clock
- Select from 32 MHz (TYP.), 24 MHz (TYP.), 16 MHz (TYP.), 12 MHz (TYP.), 8MHz (TYP.), 4 MHz (TYP.), and 1 MHz (TYP.)
On-chip single-power-supply flash memory (with prohibition of chip erase/block erase/writing function)
Self-programming (with boot swap function/flash shield window function)
On-chip debug function
On-chip power-on-clear (POR) circuit and low-voltage detector (LVD)
On-chip watchdog timer (operable with the on-chip internal low-speed oscillation clock)
On-chip multiplier/divider/multiply-accumulator
- 16 bits x 16 bits = 32 bits（signed）
- 32 bits / 32 bits = 32 bits（unsigned）
- 16 bitsx 16 bits + 32 bits = 32 bits (signed/unsigned)
On-chip key interrupt function
On-chip clock output/buzzer output controller
On-chip BCD adjustment
I/O ports: 19 to 56 (N-ch open drain: 2 to 4)
Timer
- 16-bit timer: 8 channels
- Watchdog timer: 1 channel
- Realtime counter: 1 channel
- Interval timer: 1 channel
Serial interface
- CSI
- UART (LIN-bus supported)
- I2C/simplified I2C
Stanby function
- HALT
- STOP
- SNOOZE
Different potential interface: Can connect to a 2.5 V device when operating at 3.0 V to 3.6 V
8/12-bit resolution A/D converter: 13 to 28 channels
Operating ambient temperature: TA = -40 to +85°C
Key Applications:
- Consumer Electronics, Industrial
Product Lineup:
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