PCA9534PW,112 NXP Semiconductors, PCA9534PW,112 Datasheet - Page 8

• Manufacturer Part Number: PCA9534PW,112
• Description: IC I/O EXPANDER I2C 8B 16TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9534PW,112

• Interface: I²C, SMBus
• Number Of I /o: 8
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935275051112; PCA9534PW; PCA9534PW

NXP Semiconductors
PCA9534_3
Product data sheet
Fig 8. Write to Output Port register
Fig 9. Write to Configuration register or Polarity Inversion register
Fig 10. Read from register
write to port
SDA
(cont.)
from port
register
data out
data to
SDA
SCL
S
SDA
START condition
SCL
S
(repeated)
START condition
0
S
START condition
S
0
START condition
1
1
1
0
slave address
0
1
0
slave address
2
1
2
1
0
slave address
0 A2 A1 A0 0
slave address
3
0
3
0 A2 A1 A0 1
0
4
4
0 A2 A1 A0 0
0 A2 A1 A0 0
acknowledge
5
5
from slave
acknowledge
6
acknowledge
R/W
from slave
6
acknowledge
from slave
R/W
from slave
7
7
R/W
A
R/W
8
8
A
9
A
9
A
Rev. 03 — 6 November 2006
0
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
0
command byte
data from register
DATA (first byte)
0
0
command byte
8-bit I
0
command byte
0
0
0
acknowledge
from slave
acknowledge
0
2
0
from master
C-bus and SMBus low power I/O port with interrupt
acknowledge
acknowledge
0
0
from slave
from slave
1 1/0
0
A
A
1
(cont.)
A
A
data to register
data from register
DATA (last byte)
data to port
DATA 1
DATA
acknowledge
no acknowledge
acknowledge
from slave
from slave
from master
t
v(Q)
PCA9534
© NXP B.V. 2006. All rights reserved.
A
A
NA
002aac473
P
STOP
condition
P
STOP
condition
data 1 valid
002aac474
002aac472
P
STOP
condition
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