Samsung S3F84A5 Manuale Utente

Pagina di 17
S3F84P4_AN_REV0.00 (PRELIMINARY SPEC) 
1 OVERVIEW OF HPLED LIGHTING CONTROL SYSTEM   
OVERVIEW OF HPLED LIGHTING CONTROL 
SYSTEM 
A light-emitting diode (LED) is a semiconductor light source that presents several advantages over traditional light 
(like incandescent) sources such as lower energy consumption, longer lifetime, improved robustness, smaller size, 
faster switching, and greater durability and reliance. It renders “green” light and does not contribute towards 
material pollution or radiations. Usually, an LED can also be referred to as HPLED (high power LED) if the NRP 
(normal rated power) is greater than 1W. It can be driven at currents that vary from hundreds of mA to more than 
an ampere. LEDs can produce hundreds of lumens, and find extensive usage in lighting systems. 
This document presents a simple HPLED lighting control system implemented with Samsung’s 8-bit MCU 
S3F84P4. 
 
1.1  PIN ASSIGNMENT IN S3F84P4 
 
 
Samsung Confidential
 7 
 shows the pin assignment in S3F84P4. 
 
 
    
Figure 1-1      S3F84P4 Pin Assignment