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W83783S Datasheet(PDF) 3 Page - Winbond |
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W83783S Datasheet(HTML) 3 Page - Winbond |
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3 / 57 page  W83783S Publication Release Date: August 21, 2007 - iii - Revision 1.0 Table of Contents- 1. GENERAL DESCRIPTION ......................................................................................................... 1 2. FEATURES ................................................................................................................................. 2 2.1 Monitoring Items ............................................................................................................. 2 2.2 Actions Enabling ............................................................................................................. 2 2.3 General ........................................................................................................................... 2 2.4 Package .......................................................................................................................... 2 3. KEY SPECIFICATIONS ..............................................................................................................3 4. PIN CONFIGURATION...............................................................................................................3 5. PIN DESCRIPTION..................................................................................................................... 4 6. FUNCTIONAL DESCRIPTION ................................................................................................... 6 6.1 General Description ........................................................................................................ 6 6.2 Access Interface ............................................................................................................. 6 6.2.1 The first serial bus access timing is shown as follow: ....................................................... 6 6.2.2 The serial bus timing of the temperature 2 and 3 is shown as follow:............................... 7 6.3 Analog Inputs................................................................................................................ 10 6.3.1 Monitor over 4.096V voltage:..........................................................................................11 6.3.2 Monitor negative voltage:................................................................................................ 12 6.3.3 Monitor temperature from thermistor: ............................................................................. 13 6.3.4 Monitor temperature from Pentium II TM thermal diode or bipolar transistor 2N3904 .......13 6.4 FAN Speed Count and FAN Speed Control ................................................................. 14 6.4.1 Fan speed count............................................................................................................. 14 6.4.2 Fan speed control........................................................................................................... 15 6.5 Temperature Measurement Machine ........................................................................... 16 6.5.1 W83783S temperature sensor 2 SMI# interrupt has two modes: ................................... 17 6.5.2 W83783S temperature sensor 1 SMI# interrupt has three modes.................................. 18 6.5.3 W83783S temperature sensor 1 Over-Temperature (OVT#) has three modes .............. 19 6.6 Voltage and Fan SMI# mode ........................................................................................ 20 6.6.1 Voltage SMI# mode ........................................................................................................ 20 6.6.2 Fan SMI# mode .............................................................................................................. 20 7. REGISTERS AND RAM............................................................................................................ 21 7.1 Configuration Register ⎯ Index 40h ............................................................................ 21 7.2 Interrupt Status Register 1 ⎯ Index 41h ...................................................................... 23 7.3 Interrupt Status Register 2 ⎯ Index 42h ...................................................................... 23 7.4 SMI# Mask Register 1 ⎯ Index 43h............................................................................. 24 7.5 SMI# Mask Register 2 ⎯ Index 44h............................................................................. 25 7.6 Reserved Register ⎯ Index 45h-- 46h......................................................................... 25 7.7 VID/Fan Divisor Register ⎯ Index 47h......................................................................... 26 7.8 Serial Bus Address Register ⎯ Index 48h ................................................................... 26 7.9 Value RAM ⎯ Index 20h- 3Fh or 60h - 7Fh................................................................. 27 |
Similar Part No. - W83783S_07 |
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Similar Description - W83783S_07 |
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