Description

Electronic Component Model: W83L604G

Product Category: I/O Expanders

W83L784R is an evolving product of W83782D --- Winbonds most popular hardware status monitoring IC. Specifically designed for the Notebook system, W83L784R can be used to monitor several critical hardware parameters of the system, including power supply voltages, fan speeds, and temperatures, which are very important for a high-end Notebook system to work stably and properly.

Specifications and features

Monitoring Items:
• 2 thermal inputs from remote thermistors or 2N3904 NPN-type transistors or PentiumTM II (Deschutes) thermal diode output
• One on-chip temperature detection
• 4 voltage inputs
--- typical for Vcore, +3.3V, +5V, Battery
• 2 sets of fan speed control and fan speed monitoring input
• WATCHDOG comparison of all monitored values
• Programmable hysteresis and setting points (alarm thresholds) for all monitored items

Actions Enabling:
• Issue fan fault signal as fans are abnormally stopped
• Issue battery low signal as battery voltage is abnormally out of range
• 2 PWM (pulse width modulation) outputs for fan speed control to support "Thermal CruiseTM" or "Speed CruiseTM"
--- Automatically maintain the CPU or system in the specific temperature or keep the fans at the specific speed under the H/W control
• Issue SMI#, OVT#, GPO to activate system protection
• PWR_DN# setting for the Power down mode
• Warning signal pop-up in application software

Power Good:
• Issue RESET# outputs as the Power Good signal when 3V and 5V rise across a reset threshold.

General:
• I2CTM serial bus interface
• 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
• Meet WfM 2.0 (Wired for Management) spec.
• 5V Vcc operation

Application Scenarios

This electronic component model, W83L604G, is specifically designed for use in the Notebook system. It is used to monitor critical hardware parameters such as power supply voltages, fan speeds, and temperatures. These parameters are important for a high-end Notebook system to function properly and maintain stability.

With its monitoring capabilities, the W83L604G can issue fan fault signals when fans are abnormally stopped, and issue battery low signals when the battery voltage is out of range. It also has PWM outputs for fan speed control, allowing for automatic maintenance of CPU or system temperature. The W83L604G can activate system protection through SMI#, OVT#, and GPO signals and has a power down mode for energy efficiency.

Additionally, this component supports I2CTM serial bus interface and has compatibility with IntelTM LDCM and AcerTM ADM drivers. It is also supported by Winbond's hardware monitoring application software, Hardware DoctorTM, for Windows 95/98 operating systems. The W83L604G meets the WfM 2.0 (Wired for Management) specification and operates at 5V Vcc.

Comparison

- Monitors critical hardware parameters for high-end Notebook systems

- Supports fan speed control and monitoring

- Can issue fan fault and battery low signals

- Offers PWM outputs for automatic temperature maintenance

- Activates system protection

- Compatible with I2CTM serial bus interface

- Supported by IntelTM LDCM and AcerTM ADM drivers

- Winbond hardware monitoring application software support

- Meets WfM 2.0 specification

- Operates at 5V Vcc

- Limited to use in the Notebook system

- Specific compatibility requirements with thermistors, transistors, or thermal diode output

- Designed for specific voltage inputs

- Required programming for setting points and thresholds

- Requires manual configuration for specific speed or temperature control

- Supports Windows 95/98 operating systems only

- Limited package options