W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 149

• Manufacturer Part Number: W83627UHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627UHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.1.1
13.1.1.1.
The PSOUT# signal will be asserted low if the PSIN# signal is asserted low. The PSOUT# signal is
held low for as long as the PSIN# is held low. The South Bridge controls the SUSB# signal through the
PSOUT# signal. The PSON# is directly connected to the power supply to turn on or off the power.
Figure 13-2 shows the power on and off sequences.
The ACPI state changes from S5 to S0, then to S5
48 / 24 MHz
48 / 24 MHz
48 / 24 MHz
48 / 24 MHz
IOCLK
IOCLK
IOCLK
IOCLK
PSIN#
PSIN#
PSIN#
PSIN#
PSON# Logic
3VCC
5VCC
3VCC
5VCC
Normal Operation
W83627DHG
W83627UHG
W83627DHG
W83627UHG
3VSB/VBAT
5VSB/VBAT
3VSB/VBAT
5VSB/VBAT
SUSB#
SUSB#
SUSB#
SUSB#
Figure 13-1 Power Control Mechanism
PSON#
PSON#
PSON#
PSON#
PSOUT#
PSOUT#
PSOUT#
PSOUT#
-134-
PWRBTN#
PWRBTN#
PWRBTN#
PWRBTN#
South Bridge
South Bridge
South Bridge
South Bridge
SLP_S3#
SLP_S3#
SLP_S3#
SLP_S3#
Publication Release Date: March 24, 2008
Power
Power
Power
Power
Supply
Supply
Supply
Supply
PSON#
PSON#
PSON#
PSON#
W83627UHG
VCC ON
VCC ON
VCC ON
VCC ON
VCC ON
VCC ON
Revision 1.44