PCA9538D,118 NXP Semiconductors, PCA9538D,118 Datasheet - Page 10
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PCA9538D,118
Manufacturer Part Number
PCA9538D,118
Description
IC I/O EXPANDER I2C 8B 16SOIC
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9538BS118.pdf
(28 pages)
Specifications of PCA9538D,118
Package / Case
16-SOIC (0.300", 7.5mm Width)
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
Includes
POR
Logic Family
PCA9538
Number Of Lines (input / Output)
8.0 / 8.0
Operating Supply Voltage
2.3 V to 5.5 V
Power Dissipation
200 mW
Operating Temperature Range
- 40 C to + 85 C
Input Voltage
5 V
Logic Type
I2C, SMBus
Maximum Clock Frequency
400 KHz
Mounting Style
SMD/SMT
Number Of Input Lines
8.0
Number Of Output Lines
8.0
Output Current
50 mA
Output Voltage
5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-1839-2
935277418118
PCA9538D-T
935277418118
PCA9538D-T
NXP Semiconductors
PCA9538_5
Product data sheet
Fig 9.
Fig 10. Read input port register
data into
SDA
(cont.)
port
INT
Read from register
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.
Expanded diagram is shown in
S
START condition
SDA
port
S
(repeated)
START condition
1
SCL
1
1
S
START condition
t
slave address
v(INT)
1
1
1
1
slave address
1
2
0
1
slave address
0
3
0 A1 A0
DATA 1
1
0 A1 A0 1
4
acknowledge
0
from slave
acknowledge
5
0 A1 A0 1
R/W
from slave
Figure
6
0
R/W
7
A
t
h(D)
R/W
8-bit I
A
17.
8
9
A
acknowledge
from slave
COMMAND BYTE
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
2
Rev. 05 — 28 May 2009
C-bus and SMBus low power I/O port with interrupt and reset
DATA 2
data from register
t
DATA (first byte)
rst(INT)
data from port
DATA 1
acknowledge
from slave
DATA 3
t
su(D)
A
A
acknowledge
from master
(cont.)
A
acknowledge
from master
data from register
DATA (last byte)
data from port
DATA 4
DATA 4
no acknowledge
from master
PCA9538
© NXP B.V. 2009. All rights reserved.
NA
NA
no acknowledge
from master
002aae710
P
STOP
condition
P
STOP
condition
002aae711
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