Description
RL78/I1A microcontrollers realize PWM output of a minimum 0.98 ns resolution using 64 MHz timer operation and dithering function, supporting fine dimming and toning. Through cooperation between the PWM timer and comparator/external interrupt input, PFC control and protection functions can be realized by hardware. Low consumption current of 3.3 mA during LED and power supply control and 0.23 µA when waiting for UART (DALI) communication allows the power consumption of the system to be reduced. DALI/DMX512 lighting communication and Power Management Bus (PMBus) and System Management Bus (SMBus) power communication are supported. These microcontrollers can be used in LED lighting equipment and digital power supplies.
- Ultra-Low Power Technology
- 2.7 V to 5.5 V operation from a single supply
- Stop (RAM retained): 0.23 µA, (LVD enabled): 0.31µA
- 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
