Application Note
R12AN0114EJ0100 Rev.1.00 Page 1 of 10
Mar.5.21
RX23E-AQFN40W/T
Tiny Board for Digital Load Cell
Introduction
This document describes the RX23E-AQFN40W/T which is a board for a digital load cell using Renesas
MCU, RX23E-A. This board is miniaturized to be incorporated into a digital load cell, using RX23E-A, MCU
with AFE in 40 pin HQFN package, ISL80410 as LDO power supply, ISL3152 as RS-485 driver.
Refer to ”Application Note RX23E-A Group Weight Measurement Example Using a Load Cell” for the details
of weight measurement using a load cell.
Top: Parts side Bottom: Solder side
Appearance of the board
16mm
22mm
RX23E-AQFN40W/T Tiny Board for Digital Load Cell
R12AN0114EJ0100 Rev.1.00 Page 2 of 10
Mar.5.21
Contents
1. Specifications .......................................................................................................................... 3
2. Board Data .............................................................................................................................. 4
2.1 Circuit Diagram ........................................................................................................................................ 4
2.2 Bill of Materials ........................................................................................................................................ 5
2.3 Pattern Diagram ...................................................................................................................................... 6
3. Weight Measurement ............................................................................................................... 8
4. Related Documents ................................................................................................................. 9
Revision History ............................................................................................................................ 10