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W83783S Datasheet, PDF (7/57 Pages) Winbond – MONITORING IC | |||
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W83783S
Preliminary
2. FEATURES
2.1 Monitoring Items
⢠3 thermal inputs from remote thermistors or 2N3904 NPN-type transistors or PentiumTM II
(Deschutes) thermal diode output
⢠6 voltage inputs
⢠--- typical for Vcore, +3.3V, +12V, -12V, +5V, -5V
⢠3 fan speed monitoring inputs
⢠Case open detection input
⢠WATCHDOG comparison of all monitored values
⢠Programmable hysteresis and setting points (alarm thresholds) for all monitored items
2.2 Actions Enabling
⢠Beep tone warning
⢠2 PWM (pulse width modulation) outputs for fan speed control (MUX optional)
--- Total up to 2 sets of fan speed monitoring and controlling
⢠Issue SMI#, OVT#, GPO# signals to activate system protection
⢠Warning signal pop-up in application software
2.3 General
⢠I2CTM serial bus interface
⢠5 VID input pins for CUP Vcore identification (for PentiumTM II)
⢠Initial power fault beep (for +3.3V, Vcore)
⢠IntelTM LDCM (DMI driver 2.0) support
⢠AcerTM ADM (DMI driver 2.0) support
⢠Winbond hardware monitoring application software (Hardware DoctorTM ) support, for both
Windows 95/98 and Windows NT 4.0/5.0
⢠Input clock rate optional for 24, 48, 14.318 Mhz
⢠5V Vcc operation
2.4 Package
⢠24-pin SOP
Publication Release Date: April 1999
-2-
Revision 0.55
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