W83L785R 데이터 시트보기 (PDF) - Winbond

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W83L785R

Winbond H/W Monitoring IC

Winbond 

W83L785R/W83L785G

2. FEATURES

2.1 Monitoring Items

• 2 thermal inputs from remote thermistors or PentiumTM II (Deschutes) thermal diode output

• 4 voltage inputs

--- typical for Vcore, +3.3V (Power), +2.5V, +1.5V

• 2 sets of PWM fan speed control

• WATCHDOG comparison of all monitored values

• Programmable hysteresis and setting points (alarm thresholds) for all monitored items

2.2 Actions Enabling

• 2 PWM (pulse width modulation) outputs for fan speed control

--- Total up to 2 sets of fan speed monitoring and controlling

• Issue temperature fault signal as the temperature of the system/CPU exceeds its limit.

• Issue SMI#, OVT#, GPIO and Temp. Fault signals to activate system protection

• Warning signal pop-up in application software

2.3 General

• I2CTM serial bus interface

• IntelTM LDCM (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

• Meet WFM 2.0 (Wired for Management) spec.

• 3.3V VCC operation

2.4 Package

• 20-pin SSOP (209mil)

3. KEY SPECIFICATIONS

• Voltage monitoring accuracy

• Monitoring Temperature Range and Accuracy

- 40°C to +120°C

• Supply Voltage

• Operating Supply Current

• Power Down Supply Current

• ADC Resolution

±1% (Max)

± 3°C(Max)

2.7V ~ 5.5V

2 mA typ.

10 uA typ.

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