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CXA1315P View Datasheet(PDF) - Sony Semiconductor

Part Name
Description
Manufacturer
CXA1315P Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
CXA1315M/P
<Registers> In brackets ( ) number of bits
REF
(1) : Switches D/A converter reference voltage
0: Standardizes the inner regulator
1: Standardizes voltage resistance divided from Vcc
SW0 to 3
(1) : Selects ON/OFF of Pins 1, 2, 9 and 10
(Each pin is the open collector output of NPN transistor)
0: OFF
1: ON
DAC0 to 4
(8) : Digital data input register of D/A converter
0: Output voltage turns to minimum
255: Output voItage turns to maximum
PONRES
(1) : Detects POWER ON RESET
0: Master passes from the bus and is reset to "0" after having read this status
1: Sets to "1" when power supply is turned on or when there has been a power dip
ST0 to 3
(1) : Detects and registers the voltage condition of Pins 1, 2, 9 and 10
0: 1.5V and below
1: 3.0V and above
Note) SW0 to 3 effective during "0"
I2C Bus Signal
There are 2 signals in I2C bus. SDA (Serial Data) and SCL (Serial Clock).
SDA is double-way.
As SDA is bidirectional it has 3 state outputs, H, L and Hi-Z.
H
L Hi-Z L
I2C transfer begins with Start Condition and ends with Stop Condition.
Start Condition S
SDA
Stop Condition P
SCL
–7–
 

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