PCA9554N,112 NXP Semiconductors, PCA9554N,112 Datasheet - Page 11
![IC I/O EXPANDER I2C 8B 16DIP](/photos/6/52/65287/568-16-dip_sot38-4_sml.jpg)
PCA9554N,112
Manufacturer Part Number
PCA9554N,112
Description
IC I/O EXPANDER I2C 8B 16DIP
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9554ABS118.pdf
(30 pages)
Specifications of PCA9554N,112
Package / Case
16-DIP (0.300", 7.62mm)
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
Through Hole
Includes
POR
Logic Family
PCA9554
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
Through Hole
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
For Use With
OM6285 - EVAL BOARD I2C-2002-1A568-4002 - DEMO BOARD I2C
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-2025-5
935276767112
PCA9554N
935276767112
PCA9554N
NXP Semiconductors
PCA9554_9554A_7
Product data sheet
Fig 14. Read from register
Fig 15. Read Input Port register
SDA
(cont.)
data into
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.
read from
port
INT
S
START condition
SDA
SCL
port
S
(repeated)
START condition
0
0
S
1
START condition
slave address
1
1
t
0
0
v(INT_N)
slave address
0
2
0 A2 A1 A0 0
1
slave address
0 A2 A1 A0 1
3
0
acknowledge
4
0 A2 A1 A0 1
from slave
acknowledge
5
R/W
from slave
6
acknowledge
R/W
from slave
7
A
R/W
t
h(D)
A
8
9
A
Rev. 07 — 13 November 2006
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
command byte
DATA 2
data from register
DATA (first byte)
t
rst(INT_N)
data from port
DATA 1
acknowledge
DATA 3
from slave
acknowledge
from master
acknowledge
from master
8-bit I
A
A
t
su(D)
(cont.)
2
PCA9554/PCA9554A
C-bus and SMBus I/O port with interrupt
A
DATA 4
data from register
DATA (last byte)
data from port
DATA 4
no acknowledge
no acknowledge
from master
from master
© NXP B.V. 2006. All rights reserved.
NA
NA
002aac475
002aac474
P
STOP
condition
P
STOP
condition
11 of 30