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RL78-I1A Datasheet, PDF (1/107 Pages) Renesas Technology Corp – Ultra-Low Power Technology
Datasheet
RL78/I1A
RENESAS MCU
R01DS0171EJ0310
Rev.3.10
Oct 31, 2016
True Low Power Platform, High Resolution PWM and Rich Analog, 2.7 V to 5.5 V operation, 32 to 64 Kbyte Flash,
for Inverter Control, Digital Power Control and Lighting Control Applications
1. OUTLINE
1.1 Features
Ultra-Low Power Technology
 2.7 V to 5.5 V operation from a single supply
 Stop (RAM retained): 0.23 µA, (LVD enabled): 0.31
µA
 Halt (RTC + LVD): 0.60 µA
 Operating: 156.25 µA/MHz
16-bit RL78 CPU Core
 Delivers 41 DMIPS at maximum operating frequency
of 32 MHz
 Instruction Execution: 86% of instructions can be
executed in 1 to 2 clock cycles
 CISC Architecture (Harvard) with 3-stage pipeline
 Multiply Signed & Unsigned: 16 x 16 to 32-bit result in
1 clock cycle
 MAC: 16 x 16 to 32-bit result in 2 clock cycles
 16-bit barrel shifter for shift & rotate in 1 clock cycle
 1-wire on-chip debug function
Main Flash Memory
 Density: 32 KB to 64 KB
 Block size: 1 KB
 On-chip single voltage flash memory with protection
from block erase/writing
 Self-programming with secure boot swap function
and flash shield window function
Data Flash Memory
 Data Flash with background operation
 Data flash size: 4 KB
 Erase Cycles: 1 Million (typ.)
 Erase/programming voltage: 2.7 V to 5.5 V
RAM
 2 KB to 4 KB size options
 Supports operands or instructions
 Back-up retention in all modes
High-speed On-chip Oscillator
 32 MHz with +/ 1% accuracy over voltage (2.7 V to
5.5 V) and temperature (20 °C to 85 °C)
 Pre-configured settings: 32 MHz, 24 MHz, 16 MHz,
12 MHz, 8 MHz, 6 MHz, 4 MHz, 3 MHz, 2 MHz & 1
MHz
Reset and Supply Management
 Power-on reset (POR) monitor/generator
 Low voltage detection (LVD) with 6 setting options
(Interrupt and/or reset function)
Data Memory Access (DMA) Controller
 Up to 2 fully programmable channels
 Transfer unit: 8- or 16-bit
16-bit timers KB0 to KB2, and KC0 for PWM output
16-bit timers KB0 to KB2: maximum 6 outputs (3 ch  2)
 Smooth start function, dithering function, forced output
stop function (unsyncronized with comparator or
external interrupt) enables OverVoltageProtection,
OverCurrentProtection and Peak current control, and
single/interleave PFC function
 Average resolution < 1 nsec output, 64 MHz (when
using PLL) + dithering option
16-bit timer KC0 (3 ch)
 PWM output gating function by interlocking with 16-
bit timers KB0, KB1, and KB2
Extended-Function Timers
 Multi-function 16-bit timers: Up to 8 channels
 Real-time clock (RTC): 1 channel (full calendar and
alarm function with watch correction function)
 Interval Timer: 12-bit, 1 channel
 15 kHz watchdog timer : 1 channel (window function)
Multiple Communication Interfaces
 Up to 1 x I2C multi-master (SMBus/PMBus support)
 Up to 1 x CSI/SPI (7-, 8-bit)
 Up to 3 x UART (7-, 8-, 9-bit),
DALI Support 1ch(8-, 16-, 17-, 24-bit, Master and
Slave)
 Up to 1 x LIN
Rich Analog
 ADC: Up to 11 channels, 8/10-bit resolution, 2.125 µs
conversion time
 Supports 2.7 V
 Internal voltage reference (1.45 V)
 Comparator: High response time 70 ns(typ.), Up to 6
channels, Internal DAC 3ch 8 bit resolution, window
comparator mode
 PGA (x4 to x32):6 input
 On-chip temperature sensor
Safety Features (IEC or UL 60730 compliance)
 Flash memory CRC calculation
 RAM parity error check
 RAM/SFR write protection
 Illegal memory access detection
 Clock stop/ frequency detection
 ADC self-test
General Purpose I/O
 5V tolerant, high-current (up to 8.5 mA per pin)
 Open-Drain, Internal Pull-up support
R01DS0171EJ0310 Rev.3.10
Oct 31, 2016
Page 1 of 105