Low power MCUs RL78/I1D from Renesas

Renesas Electronics' New Microcontroller RL78/I1D Consume very low power when operating at 1 MHz. The RL78/I1D functions are optimized for detectors that sense minute variations in the output of sensors used to monitor for smoke, gas, and motion or vibrations. The functions such as the data transfer controller (DTC), event link controller (ELC), and data operation circuit (DOC) and long-interval timers all done without the need of CPU, which has resulted in low-power consumption by approximately 30 percent. RL78/I1D consumes a operating current level much lower than that of competing products, and it wakes up from the stop-mode state very quickly, claims Renesas. Key Features of RL78/I1D Group of MCUs as explained by Renesas : (1) Innovative snooze mode functions enabling data processing and transfer without CPU intervention The data transfer controller (DTC) or event link controller (ELC) can be used to activate sensors, activate operational amplifiers to amplify sensor signals, and transfer A/D conversion results. The data operation circuit (DOC) compares the transferred A/D conversion results and threshold values to determine whether the CPU needs to be activated. These innovative snooze mode functions operate without CPU intervention in standby mode and reduce power consumption by approximately 30 percent in products such as fire detectors, gas detectors, broken ...