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ST52T301 Datasheet(PDF) 2 Page - STMicroelectronics |
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ST52T301 Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 100 page The flexible I/O configuration of ST52x301 allows to interface with a wide range of external devices, like D/A converters, power control devices (SCRs, TRIACs) and external sensors. The OTP (One Time Programmable) device is fully compatible with the EPROM windowed version, which may be used to create prototype systems and for the pre-production phases. The Fuzzy Core includes the fuzzifier (ALPHA calculator), the inference unit and the defuzzifier. It allows to manage up to 300 Rules (4 Inputs and 1 Output). The rules could be shared in different fuzzy subroutines that can be activated by user defined conditions. T he I / O c apabi l it i es, dem anded f r om microcontroller applications, are fulfilled by ST52x301 with 4 Analog Inputs, an asynchronous Peripheral interface (UART) and an 8-bit I/O communicationport in orderto transferdata from/to the on-chip Register File. The voltage reference provides biasing to the analog portion of the internal circuitry. The internal reference is a 2.5V Bandgap reference. The voltage reference can supply up to 0.1 mA of current to power external circuitry. ST52x301 includes an 8-bit sampling Analog to Digit al (A/ D) C onve r te r w i t h a 4 analog channel fa st multiplexer (32 µs conversion time/channel). It is possible to perform operations on data stored in the Register File (16 bytes), allowing to manage new inputs and feedback outputs. The TRIAC/PWM Driver peripheral allows to manage directly power devices, implementing three different operating modes: Burst Mode ( i. e.T her m al A pp li ca t ion s) , Phas e A ng le Partialization (i.e. Motors Control by TRIACs) and high frequency PWM controls. A programmable Timer with Internal Prescaler, using both internal or external clock, is available. The microcontroller configuration is stored in the internal EPROM. A power f u l devel opm ent envi r onm ent , FUZZYSTUDIO ™ 3.0, consisting of a board an d s of t w a r e t ool s , a l l o w s an eas y configuration and use of ST52x301. ST 52 x 3 0 1 i s f u l l y s up po r t ed b y FUZZYSTUDIO3.0 so f t war e t ools allow ing to gra ph ic al ly d es ig n a project and obtain an optimized microcode. ST52x301 exploits a SGS-THOMSON patented strategy to store the MFs in its internal memory. OSCILLATO R ALU - FUZZY CORE SYSTEM REGISTERS CONTROL UNIT REGISTER FILE PARALLEL I/O PORT 2kBytes EPROM TRIAC/PWM DRIVE R PROG.TIMER WITH PRESC ALER SCI A/D CONVERT ER BAND-GAP REFERENCE Figure 1. ST52x301 Architectural Block Diagram 2/99 ST52T301/E301 |
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