RENESAS R5F11TLEDFB#10

True low-power platform featuring an independent power supply RTC, hardware AES, 32-bit multiply-accumulate unit, operating voltage range of 1.9 V to 5.5 V, flash memory from 64 KB to 256 KB, designed specifically for energy meter applications.

• Target application: energy meters
• Ultra-low power technology: single supply voltage VDD range 1.7 V to 5.5 V, supports HALT mode, STOP mode, SNOOZE mode
• RL78 CPU core: CISC architecture with 3-stage pipeline, minimum instruction execution time switchable from high speed to ultra-low speed, supports 16-bit multiplication, 16-bit multiply-accumulate, and 32-bit division, 1 MB address space, 4 general-purpose register banks, on-chip RAM 6 KB to 16 KB
• Code flash: capacity 64 KB to 256 KB, block size 1 KB, supports block erase/rewrite prohibition, on-chip debug function, self-programming
• Data flash: capacity 2 KB, supports background operation, typical endurance 1,000,000 erase/write cycles, rewrite voltage VDD = 1.9 V to 5.5 V
• PLL clock: selectable 32 MHz
• High-speed on-chip oscillator: selectable 1 MHz to 24 MHz, selectable 24 MHz, 12 MHz, 6 MHz, or 3 MHz when used as ΔΣ ADC clock, high accuracy ±1.0%, with on-chip high-speed oscillator clock frequency correction
• Medium-speed on-chip oscillator: selectable 4 MHz, 2 MHz, or 1 MHz
• Operating ambient temperature: TA = -40°C to +85°C
• Power management and reset: on-chip power-on reset circuit, on-chip RTC power-on reset circuit, on-chip voltage detector
• Voltage detection circuit: detects voltage on VDD, VBAT, VRTC, and EXLVD pins
• Data transfer controller: supports normal mode, repeat mode, block mode; triggered by interrupt sources; chain transfer capability
• Event link controller: links 22 types of event signals to specified peripheral functions
• On-chip 32-bit multiplier and multiply-accumulator: supports 32-bit × 32-bit = 64-bit, and 32-bit × 32-bit + 64-bit = 64-bit operations
• Serial interfaces: simplified SPI, UART, UART, UART/IrDA, simplified I²C, I²C
• Timers: 16-bit timer, 12-bit interval timer, 8-bit interval timer, independent power supply RTC, watchdog timer, oscillation stop detection circuit
• LCD controller/driver: switchable internal voltage boost, capacitor split, and external resistor voltage divider methods; segment signal outputs 19 to 42; common signal outputs 4
• ADC: 24-bit ΔΣ ADC, 8/10-bit resolution ADC, internal reference voltage and temperature sensor
• I/O ports: 35 to 68, configurable as N-channel open-drain, TTL input buffer, and on-chip pull-up resistor; supports different voltage level interfaces; on-chip clock output/buzzer output controller and on-chip key interrupt
• AES circuit: supports GCM/ECB/CBC cipher operation modes, encryption key length 128/192/256 bits
• Other: on-chip BCD correction circuit, on-chip battery backup function