December 2014

DocID027245 Rev 1

1/4

For further information contact your local STMicroelectronics sales

office

www.st.com

STEVAL-IFP023V1

16-bit digital input card based on the CLT01-38S4 high-speed

protected digital termination array

Data brief

Features



8/16 input channel topology (CLT01-38S4

chip on STEVAL- IFP023V1 board)



Fully integrated current limiter



Termination for IEC 61131-2 type 1 and 3

inputs



SPI communication peripheral working at

high frequency



Voltage regulator integrated on chip



Thermal/voltage alarms and checksum



Wide range supply voltage operation



Low power dissipation compared to discrete

solutions



Low external component count



Overvoltage protection



ESD in accordance with IEC 61000-4-2,

class 3, 8 kV air discharge, 6 kV contact

discharge



Excellent EMC immunity



High energy surge (IEC 61000-4-5), 2

kV / criteria “B” without external

protection



Fast transient burst (IEC 61000-4-4), ±

3 kV criteria “A”



RF amplitude modulation (IEC 61000-4-

6), 150 kHz -

80 MHz, 3 V / criteria “A”



SPI bus provides cost-effective isolation



Reduces overall dissipation



Compact module HTSSOP-38 package



RoHS compliant

Description

The STEVAL-IFP023V1 product evaluation board

allows designers to evaluate the performance of

the CLT01-38S4 high-speed protected digital

termination array in industrial environmental

conditions. The board includes two CLT01-38S4

chips connected to an SPI bus in a daisy chain

configuration. It offers a 16-bit digital input

interface and indicates each sensor logic state

with an LED.