W83627EG Nuvoton Technology Corporation of America, W83627EG Datasheet - Page 195

• Manufacturer Part Number: W83627EG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EG

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

Originally, the t2 timing is between 300 mS to 600 mS, but it can be changed to 200 mS to 300 mS by
programming Logical Device A, CR[E6h], bit 3 to “1”. Furthermore, the W83627EHF/EHG/EF/EG
provides four different extra delay time of PWROK for various demands. The four extra delay time are
designed at Logical Device A, CR[E6h], bits 2~1. The following table shows the definitions of Logical
Device A, CR[E6h] bits 3 ~1.
LOGICAL DEVICE A,
CR[E6H] BIT
2~1
3
t2
V3
V4
SYMBOL
PWROK_DEL (first stage) (VSB)
Set the delay time when rising from PWROK_LP to
PWROK_ST.
0: 300 ~ 600 mS.
1: 200 ~ 300 mS.
PWROK_DEL (VSB)
Set the delay time when rising from PWROK_ST to
PWROK.
00: No delay time.
10: 96 mS
MIN.
300
2.6
2.4
W83627EHF/EF, W83627EHG/EG
- 184 -
DEFINITION
01: Delay 32 mS
11: Delay 250 mS
MAX.
2.65
2.45
600
UNIT
mS
V
V