应用与设计

Water Meter

详情介绍

Water Meter

Overview

Renesas’ RL78/L1x Series of MCUs are famous in low power consumption in the standby state and can operate on a wide range of voltages. In addition, a broad lineup of packages is available, so an MCU with the necessary functionality and size can be selected.

System Block Diagram

Recommended Products

Block Semiconductor device Recommended products Features, etc.
Main controller MCU RL78/L1x 32 MHz, 16-bit, True low power,
On-chip LCD controller/driver
Sensor Analog front end Smart Analog IC101 16-bit delta-sigma A/D converter + Built-in PGIA
Smart Analog IC300 Low voltage configurable amplifier
Configurable amplifier: 3 channels
Operating voltage: 2.2 to 3.6 V (low-voltage product)
Smart Analog IC500 Configurable amplifier
Configurable amplifier: 3 channels
Operating voltage: 3.0 to 5.5 V
I/O MOS FET μPA26xx Series
μPA28xx Series
2×2mm package
3×3mm package
µPA263x Low voltage (1.8 V) drive, HUSON2020

Related Application Notes/Sample Code

Title Document No.
Power MOS FET application note REJ05G0001-0200