RENESAS R5F1026AASP#55 microcontroller microcontroller converter

1. OUTLINE 

1.1 Features 

Ultra-low power consumption technology 

? VDD = single power supply voltage of 1.8 to 5.5 V which 

can operate at a low voltage 

? HALT mode 

? STOP mode 

? SNOOZE mode 

RL78 CPU core 

? CISC architecture with 3-stage pipeline 

? Minimum instruction execution time: Can be changed 

from high speed (0.04167 ?s: @ 24 MHz operation with 

high-speed on-chip oscillator) to ultra-low speed (1 ?s: 

@ 1 MHz operation) 

? Address space: 1 MB 

? General-purpose registers: (8-bit register x 8) x 4 banks 

? On-chip RAM: 256 B to 2 KB 

Code flash memory 

? Code flash memory: 2 to 16 KB 

? Block size: 1 KB 

? Prohibition of block erase and rewriting (security 

function) 

? On-chip debug function 

? Self-programming (with flash shield window function)

Data flash memory Note

? Data flash memory: 2 KB 

? Back ground operation (BGO): Instructions are 

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 5.5 V 

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 

? High accuracy: +/- 1.0 % (VDD = 1.8 to 5.5 V, TA = -20 

to +85 °C) 

Operating ambient temperature 

? TA = -40 to +85 °C (A: Consumer applications, D: 

Industrial applications) 

? TA = -40 to +105 °C (G: Industrial applications) Note 

Power management and reset function 

? On-chip power-on-reset (POR) circuit 

? On-chip voltage detector (LVD) (Select interrupt and 

reset from 12 levels) 

DMA (Direct Memory Access) controller Note

? 2 channels 

? Number of clocks during transfer between 8/16-bit SFR 

and internal RAM: 2 clocks 

Multiplier and divider/multiply-accumulator 

? 16 bits x 16 bits = 32 bits (Unsigned or signed) 

? 32 bits x 32 bits = 32 bits (Unsigned) 

? 16 bits x 16 bits + 32 bits = 32 bits (Unsigned or 

signed) 

Serial interface 

? CSI : 1 to 3 channels 

? UART : 1 to 3 channels 

? Simplified I2C communication : 0 to 3 channels 

? I2C communication : 1 channel 

Timer 

? 16-bit timer : 4 to 8 channels 

? 12-bit interval timer : 1 channel 

? Watchdog timer : 1 channel (operable with the 

dedicated low-speed on-chip 

oscillator) 

A/D converter 

? 8/10-bit resolution A/D converter (VDD = 1.8 to 5.5 V) 

? 8 to 11 channels, internal reference voltage (1.45 V), 

and temperature sensor Note

I/O port 

? I/O port: 18 to 26 

(N-ch open drain I/O [withstand voltage of 6 V]: 2, 

N-ch open drain I/O [VDD withstand voltage]: 4 to 9) 

? Can be set to N-ch open drain, TTL input buffer, and 

on-chip pull-up resistor 

? Different potential interface: Can connect to a 1.8/2.5/3 

V device 

? On-chip key interrupt function 

? On-chip clock output/buzzer output controller 

Others 

? On-chip BCD (binary-coded decimal) correction circuit 

Note Can be selected only in HS (high-speed main) 

mode. 

Remark The functions mounted depend on the product. 

See 1.7 Outline of Functions.