PCA9575PW2,118 NXP Semiconductors, PCA9575PW2,118 Datasheet - Page 23

• Manufacturer Part Number: PCA9575PW2,118
• Description: IC I2C/SMBUS 16BIT GPIO 28-TSSOP
• Manufacturer: NXP Semiconductors
• Series: -r

Specifications of PCA9575PW2,118

• Interface: I²C, SMBus
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 1.1 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Includes: POR
• Description/function: 16-bit I2C-bus and SMBus
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.1 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935286414118

NXP Semiconductors
PCA9575_3
Product data sheet
Fig 15. Read from register
Fig 16. Read Input port register
data into
(1) Slave address shown in this example is for the 24-pin version.
(1) Slave address shown in this example is for the 24-pin version.
SDA
(cont.)
port
INT
read from
This figure assumes the command byte has previously been programmed with 00h.
Transfer of data can be stopped at any moment by a STOP condition.
S
START condition
SDA
S
(repeated)
START condition
port
0
SCL
0
1
slave address
S
START condition
t
1
v(INT)
slave address
0
1
0
0
0
2
1
slave address
0
0
3
0
(1)
0
acknowledge
0
4
0
(1)
from slave
0
acknowledge
0
5
0
R/W
from slave
0
(1)
0
R/W
6
0
1
A
7
t
0
h(D)
R/W
A
8
1
9
A
acknowledge
from slave
Rev. 03 — 9 November 2009
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
command byte
16-bit I
data from register
DATA (first byte)
t
rst(INT)
DATA 2
data from port
2
acknowledge
C-bus and SMBus, level translating, low voltage GPIO
DATA 1
DATA 3
from slave
acknowledge
from master
t
su(D)
A
A
(cont.)
A
acknowledge
from master
data from register
DATA (last byte)
data from port
DATA 4
DATA 4
no acknowledge
from master
PCA9575
© NXP B.V. 2009. All rights reserved.
NA
1
no acknowledge
from master
002aad571
002aad572
P
STOP
condition
P
STOP
condition
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