W83791G Nuvoton Technology Corporation of America, W83791G Datasheet - Page 20

• Manufacturer Part Number: W83791G
• Description: IC MONITOR H/W 48-LQFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83791G

• Function: Hardware Monitor
• Topology: ADC
• Sensor Type: External
• Sensing Temperature: External Sensor
• Output Type: I²C™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.3.3
As described previously the W83791D/G has connectable W55FXX to store voice data. To expand the
storage capacity, users can select many W55FXX to connect with each other. The maximum capacity
could be up to 16Mbit. Following is the connection chart of W55FX with W83791D/G.
6.3.4
Speech output pin is a 8 bit Current D/A converter, with which loading is needed. The resistor could
range from 510~1K ohm and bipolar could be a low power NPN bipolar with
an 8050D transistor is appropriate. The spec of speaker is 8 Ω. Besides, SPK can also connect to
AC97 codec chip Line_Out. C is decouple capacitor and is usually 200p- 0.01uF
EVTTRAP 1: 5
SLOTOCC#
Connection of EEPROM
Speaker Output
Internal programmable
SPK
trigger
DATA ADDR CLK CTRL MODE EOP
DATA ADDR CLK CTRL MODE EOP
Speech Synthesizer
(W83791D)
Figure 4 Speech Function Diagram
EEPROM
R
Hardware monitor status
Figure. 5
C
trigger
- 14 -
8050D, NPN transistor
8 ohm speaker
Publication Release Date: April 14, 2006
DATA ADDR CLK CTRL MODE EOP
9-bit DAC
β
EEPROM
of 120 - 160. Usually,
W83791D/G
Revision 1.1
SPK/LED