W83627DHG-PT Nuvoton Technology Corporation of America, W83627DHG-PT Datasheet - Page 191

• Manufacturer Part Number: W83627DHG-PT
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG-PT

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

The RSMRST# (Pin 75) signal is a reset output and is used as the 3VSB power-on reset signal for the
South Bridge.
When the W83627DHG-P detects the 3VSB voltage rises to “V1”, it then starts a delay – “t1” before
the rising edge of RSMRST# asserting. If the 3VSB voltage falls below “V2”, the RSMRST# de-asserts
immediately.
Timing and voltage parameters are shown in
Figure 15-3 The previous state is “on” - 3VCC falls to 2.6V and SUSB# keeps at
The PWROK (Pin 71) signal is an output and is used as the 3VCC power-on reset signal.
When the W83627DHG-P detects the 3VCC voltage rises to “V3”, it then starts a delay – “t2” before
the rising edge of PWROK asserting. If the 3VCC voltage falls below “V4”, the PWROK de-asserts
immediately.
Timing and voltage parameters are shown in
SYMBOL
15.3 Resume Reset Logic
15.4 PWROK Generation
3VSB
PWROK
3VCC
RSMRST#
V1
V2
t1
V1
3VSB Valid Voltage
3VSB Ineffective Voltage
Valid 3VSB to RSMRST# inactive
V3
t1
Table 15-3 Timing and Voltage Parameters of RSMRST#
t2
Figure 15-5 Mechanism of Resume Reset Logic
PARAMETER
W83627DHG-P/W83627DHG-PT
Figure 15-6
Figure 15-6
Figure 15-5 Mechanism of Resume Reset Logic
-181-
and
Table
MIN.
2.25
100
2.4
Publication Release Date: July 09, 2009
15-4.
TYP.
2.6
2.4
-
V4
2.0V.
MAX.
2.75
2.55
200
Version 1.94
V2
UNIT
mS
V
V
and