PCA9541D/02,112 NXP Semiconductors, PCA9541D/02,112 Datasheet - Page 14

• Manufacturer Part Number: PCA9541D/02,112
• Description: IC I2C 2:1 SELECTOR 16SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9541D/02,112

• Applications: 2-Channel I²C Multiplexer
• Interface: I²C, SMBus
• Voltage - Supply: 2.3 V ~ 5.5 V
• Package / Case: 16-SOIC (3.9mm Width)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935273314112; PCA9541D/02; PCA9541D/02

Table 12.
[1]
[2]
[3]
Read Control Register performed by the master
Byte
read
Hex
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
Only the 4 LSBs are shown.
x0x0 in binary = 0, 2, 8 or A in hexadecimal
x0x1 in binary = 1, 3, 9 or B in hexadecimal
x1x0 in binary = 4, 6, C or E in hexadecimal
x1x1 in binary = 5, 7, D or F in hexadecimal
x can be either ‘0’ or ‘1’ since those bits are read-only bits.
[1]
Status
bus off
bus off
bus off
bus off
bus on
bus on
bus on
bus on
bus on
bus on
bus on
bus on
bus off
bus off
bus off
bus off
Bus control sequence
has control
no control
no control
has control
has control
no control
no control
has control
has control
no control
no control
has control
has control
no control
no control
has control
NBUSON BUSON NMYBUS MYBUS Byte
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Write Control Register performed by the master
written
Hex
4
4
5
5
4
5
0
1
0
0
1
1
-
-
-
-
[1][2]
Action performed
to take mastership
bus on
bus on, take control
bus on, take control
bus on
no change
take control
take control
no change
no change
take control
take control
no change
bus on
bus on, take control
bus on, take control
bus on
NBUSON
x
x
x
x
x
x
x
x
x
x
x
x
[3]
BUSON NMYBUS
no write required
no write required
no write required
no write required
1
1
1
1
1
1
0
0
0
0
0
0
x
x
x
x
x
x
x
x
x
x
x
x
[3]
MYBUS
0
0
1
1
0
1
0
1
0
0
1
1