PCA9557D/DG,118 NXP Semiconductors, PCA9557D/DG,118 Datasheet - Page 6

• Manufacturer Part Number: PCA9557D/DG,118
• Description: IC I/O PORT I2C/SMBUS 16-SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9557D/DG,118

• 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
• Package / Case: 16-SOIC (3.9mm Width)
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935285892118

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
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