PCA9557PW,112 NXP Semiconductors, PCA9557PW,112 Datasheet - Page 6
![IC I/O EXPANDER I2C 8B 16TSSOP](/photos/6/56/65607/568-16-tssop_sot403-1_sml.jpg)
PCA9557PW,112
Manufacturer Part Number
PCA9557PW,112
Description
IC I/O EXPANDER I2C 8B 16TSSOP
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9557BS118.pdf
(26 pages)
Specifications of PCA9557PW,112
Package / Case
16-TSSOP
Interface
I²C, SMBus
Number Of I /o
8
Interrupt Output
No
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
PCA
Operating Supply Voltage
2.3 V to 5.5 V
Power Dissipation
200 mW
Operating Temperature Range
- 40 C to + 85 C
Maximum Clock Frequency
400 KHz
Mounting Style
SMD/SMT
Output Current
50 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-5028
935270669112
PCA9557PW
PCA9557PW,112
PCA9557PW
935270669112
PCA9557PW
PCA9557PW,112
PCA9557PW
NXP Semiconductors
6. System diagram
PCA9557
Product data sheet
Fig 7.
RESET
SDA
SCL
A2
A1
A0
System diagram
or
or
or
1.1 k
1.6 k
1.6 k
1.1 k
1.1 k
1.1 k
Table 3.
[1]
Symbol
V
IO2
IO3
IO4
IO5
IO6
IO7
RESET
V
SS
DD
HVQFN16 package die supply ground is connected to both the V
V
electrical, and board-level performance, the exposed pad needs to be soldered to the board using a
corresponding thermal pad on the board, and for proper heat conduction through the board thermal vias
need to be incorporated in the PCB in the thermal pad region.
SS
I
2
C-BUS/SMBus
INTERFACE
pin must be connected to the supply ground for proper device operation. For enhanced thermal,
LOGIC
Pin description
Pin
SO16, TSSOP16
8
9
10
11
12
13
14
15
16
Rev. 06 — 11 June 2008
INPUT
PORT
…continued
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
INVERSION
POLARITY
HVQFN16
6
7
8
9
10
11
12
13
14
[1]
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
8-bit I
Description
supply ground
input/output 2
input/output 3
input/output 4
input/output 5
input/output 6
input/output 7
active LOW reset input
supply voltage
CONFIG.
2
C-bus and SMBus I/O port with reset
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
SS
pin and the exposed center pad. The
OUTPUT
PORT
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
PCA9557
© NXP B.V. 2008. All rights reserved.
002aad276
1.1 k
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
6 of 26