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EPC101 Datasheet(PDF) 1 Page - Espros Photonics corp

Part No. EPC101
Description  Light-Curtain Device with 2-Wire Bus Interface
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Manufacturer  EPC [Espros Photonics corp]
Direct Link  http://www.espros.ch
Logo EPC - Espros Photonics corp

EPC101 Datasheet(HTML) 1 Page - Espros Photonics corp

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epc101
Light-Curtain Device with 2-Wire Bus Interface
General Description
The epc10x chip set is a general purpose CMOS integrated circuit
for light-curtain applications. epc100 is used on the receiver side
(Rx) whereas epc 101 is on the emitter side (Tx). Up to 1023
devices may be connected to two respectively four wires in paral-
lel. Each device can be individually addressed by an epc100 chip
which acts as the interface between a microcontroller and the 2-
wire bus. It manages the bus traffic between the microcontroller
and the individual Rx and Tx elements. Programmable fuses i.e.
for the address, sensitivity, LED light pulse width, etc. allow the
device to be parametrized in the final system (OTP memory).
Each chip can be put into 'standby mode' or 'operating mode' to re-
duce power consumption. During 'standby mode', power consump-
tion is reduced and the photo diode is shorted.
Refer to the separate Data Sheet of the epc100 receiver chip and
to the Reference Manual epc10x for implementation, usage and
configuration information.
Feature
Light pulse transmitter
Universal LED controller
Scan period down to 30 µs
integrated clock generator
CSP10 package with very small footprint and standard QFN16 pack -
age available
Applications
Light barriers ranging from millimeters to tens of meters
Light curtains
Smoke detectors
Liquid detectors
Functional Block Diagram
Functional Block diagram epc70x
LST
Parameter
Memory
2-wire COM
Interface
2-wire COM
Interface
SO
SI
CS
VDD33
PD
03.11.2010
Page 1
...
File:
This document is confidential and protected by law and international trades. It must not be shown to any third party nor be copied in any form without our written permission
.
LED
V
LED
VDD18
Signal
Processor
Processor
SPI
Controller
GND
VDD
LED
SCK
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
1
Datasheet epc101 - V2.1
www.espros.ch


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