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F75373S Datasheet(PDF) 10 Page - Feature Integration Technology Inc.

Part # F75373S
Description  Fintek Hardware Monitor IC Datasheet
Download  49 Pages
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Manufacturer  FINTEK [Feature Integration Technology Inc.]
Direct Link  http://www.fintek.com.tw/eng
Logo FINTEK - Feature Integration Technology Inc.

F75373S Datasheet(HTML) 10 Page - Feature Integration Technology Inc.

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Fintek
Feature Integration Technology Inc.
V0.25P
5
F75373
VIN (Lower than 2.048V)
R1
8-bit ADC
with
7.8125mV LSB
Typical Thermister
Connection
RTHM
Pin 14/15
Voltage Inputs
10K, 25 C
R2
R
VREF
10K, 1%
VIN1(Max2.048V)
VIN(Higher than 2.048V)
(directly connect to the chip)
Pin 13
3VCC
(directly connect to the chip)
Figure 5-3
VIN3.3
50K
50K
5.2 Access Interface
The F75373S provides one serial access interface, Serial Bus, to read/write internal registers. The address of
Serial Bus is configurable by using power-on trapping. The pin 3 (PWMOUT1/ADDR_TRAP) is multi-function pin.
During power-on, this pin serves as input detection of logic high or logic low. This pin is default pull-down resistor with
100K ohms mapping the Serial Bus address 0x5A (0101_1010). Another Serial Bus address 0x5C (0101_1100) is
set when external pull-up resistor with 10K ohms is connected in this pin.
(a) Serial bus write to internal address register followed by the data byte
0
Start By
Master
01
01
1
01
D7
D6
D5
D4
D3
D2
D1
D0
Ack
by
373S
R/W
Ack
by
373S
SCL
SDA
D7
D6
D5
D4
D3
D2
D1
D0
Stop
by
Master
SCL
SDA (Continued)
78
0
7
8
0
78
Frame 2
Internal Index Register Byte
(Continued)
Frame 3
Data Byte
Frame 1
Serial Bus Address Byte
Figure 1. Serial Bus Write to Internal Address Register followed by the Data Byte


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