MON35W42 Datasheet, PDF (1/60 Pages) SMSC Corporation – Hardware Monitoring IC with Thermal Diode Interface

MON35W42
Hardware Monitoring IC with Thermal Diode
Interface
FEATURES
!" Monitoring Items
- 3 Thermal Inputs From Remote
Thermistors or 2N3904 NPN-type
Transistors or Pentium^® II (Deschutes)
Thermal Diode Output
- 9 Voltage Inputs - Typical for Vcore,
+3.3V, +12V, -12V, +5V, -5V, +5V Vsb,
Vbat, and One Reserved
- 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
!" Action Enabling
- Beep Tone Warning
- 4 PWM (Pulse Width Modulation)
Outputs for Fan Speed Control (3 are
MUX Optional); Up to 3 sets of fan
Speed Monitoring and Control.
- Issue nSMI, nOVT, nGPO Signals to
Activate System Protection
- Warning Signal Pop-Up for Application
Software
!" General
- ISA and I²C Serial Bus Interface
- 5 VID Input Pins for CPU Vcore
Identification (for Pentium^® II)
- Initial Power Fault Beep (for +3.3V,
Vcore)
- Master Reset Input to MON35W42
- Independent Power Plane of Digital Vcc
and Analog Vcc (Inputs to IC)
- 3 Pins (IA0, IA1, IA2) to Provide
Selectable Address Setting for
Application of Multiple Devices (up to 8
Devices) Wired Through I²C Interface
- Intel^® LDCM (DMI Driver 2.0) Support
- Acer ADM (DMI Driver 2.0) Support
- SMSC Hardware Monitoring Application
Software (Hardware Doctor) 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
!" Package
- 48 Pin TQFP