W83627EHG Nuvoton Technology Corporation of America, W83627EHG Datasheet - Page 33

• Manufacturer Part Number: W83627EHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EHG

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

W83627EHF/EHG and the second function is that this voltage with 3.3V is connected to internal serial
resistors to monitor the +3.3V voltage. The W83627EHF/EHG internal two serial resistors are 34 KΩ
and 34 KΩ so that input voltage to ADC is 1.65V which is less than 2.048V of ADC maximum input
voltage. The express equation can represent as follows.
The Pin 61 is connected to 3.3 VSB voltage. W83627EHF/EHG monitors this voltage and the internal
two serial resistors are 34 KΩ and 34 KΩ so that input voltage to ADC is 1.65V which less than
2.048V of ADC maximum input voltage.
6.3.2
W83627EHF/EHG provides one detection methods for CPUVCORE(pin 100).
The LSB of this mode is 8mV. This means that the detected voltage equals to the reading of this
voltage register multiplies 8mV. The formula is as the following:
6.3.3
The temperature data format is 8-bit two's-complement for sensor SYSTIN and 9-bit two's-
complement for sensor CPUTIN and AUXTIN. The 8-bit temperature data can be obtained by reading
the CR[27h]. The 9-bit temperature data can be obtained by reading the 8 MSBs from the
Bank1/Bank2 CR[50h] and the LSB from the Bank1/Bank2 CR[51h] bit 7. The format of the
temperature data is show in Table 6.1.
TEMPERATURE
+125°C
+25°C
+1°C
+0.5°C
+0°C
-0.5°C
-1°C
-25°C
-55°C
Detected Voltage =
CPUVCORE voltage detection method
Temperature Measurement Machine
V
in
=
VCC
8-BIT BINARY
Reading ∗
0111,1101
0001,1001
0000,0001
-
0000,0000
-
1111,1111
1110,0111
1100,1001
×
8-BIT DIGITAL OUTPUT
34
K
34
Ω
+
. 0
K
Ω
34
008
W83627EHF/EF, W83627EHG/EG
K
Ω
V
8-BIT HEX
7Dh
19h
01h
-
00h
-
FFh
E7h
C9h
≅
- 27 -
Table 6.1
. 1
65
V
, where VCC is set to 3.3V.
9-BIT BINARY
0,1111,1010
0,0011,0010
0,0000,0010
0,0000,0001
0,0000,0000
1,1111,1111
1,1111,1110
1,1100,1110
1,1001,0010
Publication Release Date: Nov. 2006
9-BIT DIGITAL OUTPUT
0FAh
032h
002h
000h
1FFh
1CEh
192h
001h
1FFh
9-BIT HEX
Revision 1.3