Datasheet
R01DS0244EJ0220
Rev. 2.20
RL78/I1D
RENESAS MCU
Feb 20, 2017
1. OUTLINE
1.1
Features
Ultra-low power consumption technology
Data transfer controller (DTC)
• Transfer modes: Normal transfer mode, repeat transfer
mode, block transfer mode
• VDD = 1.6 V to 3.6 V
• HALT mode
• Activation sources: Activated by interrupt sources.
• Chain transfer function
• STOP mode
• SNOOZE mode
Event link controller (ELC)
RL78 CPU core
• Event signals of 20 types can be linked to the specified
peripheral function.
• CISC architecture with 3-stage pipeline
• Minimum instruction execution time: Can be changed
from high speed (0.04167 μs: @ 24 MHz operation with
high-speed on-chip oscillator) to ultra-low speed (66.6
μs: @ 15 kHz operation with low-speed on-chip
oscillator clock)
Serial interfaces
• CSI: 2 channels
• UART: 1 channel
• Multiply/divide/multiply & accumulate instructions are
supported.
• I2C/simplified I2C: 2 channels
• Address space: 1 MB
• General-purpose registers: (8-bit register × 8) × 4 banks
• On-chip RAM: 0.7 to 3 KB
Timers
• 16-bit timer: 4 channels
• 12-bit interval timer: 1 channel
• 8-bit interval timer: 4 channels
Code flash memory
• Code flash memory: 8 to 32 KB
• Block size: 1 KB
• Prohibition of block erase and rewriting (security
function)
• On-chip debug function
• Real-time clock: 1 channel (calendar for 99 years, alarm
function, and clock correction function)
• Watchdog timer: 1 channel
A/D converter
• 8/12-bit resolution A/D converter (VDD = 1.6 to 3.6 V)
• Analog input: 6 to 17 channels
• Internal reference voltage (1.45 V) and temperature
sensor
• Self-programming (with boot swap function/flash shield
window function)
Data flash memory
• Data flash memory: 2 KB
Comparator
• 2 channels
• Operating modes: Comparator high-speed mode,
comparator low-speed mode, window mode
• Back ground operation (BGO): Instructions can be
executed from the program memory while rewriting the
data flash memory.
• Number of rewrites: 1,000,000 times (TYP.)
• Voltage of rewrites: VDD = 1.8 to 3.6 V
Operational amplifier
• 4 channels
High-speed on-chip oscillator
• Select from 24 MHz, 16 MHz, 12 MHz, 8 MHz, 6 MHz, 4
MHz, 3 MHz, 2 MHz, and 1 MHz
I/O ports
• High accuracy: ±1.0% (VDD = 1.8 to 3.6 V, TA = -20 to
+85°C)
• I/O port: 14 to 42 (N-ch open drain I/O [withstand
voltage of 6 V]: 4, N-ch open drain I/O [VDD withstand
voltage]: 3 to 7)
• Can be set to N-ch open drain, TTL input buffer, and on-
chip pull-up resistor
• Different potential interface: Can connect to a 1.8/2.5 V
device
• On-chip key interrupt function
• On-chip clock output/buzzer output controller
Others
Middle-speed on-chip oscillator
• Selectable from 4 MHz, 2 MHz, and 1 MHz.
Operating ambient temperature
• TA = -40 to +105°C (G: Industrial applications)
Power management and reset function
• On-chip BCD (binary-coded decimal) correction circuit
• On-chip data operation circuit
• On-chip power-on-reset (POR) circuit
• On-chip voltage detector (LVD) (Select interrupt and
reset from 12 levels)
Remark The functions mounted depend on the
product. See 1.6 Outline of Functions.
R01DS0244EJ0220 Rev. 2.20
Feb 20, 2017
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