PCA9539APW,118 NXP Semiconductors, PCA9539APW,118 Datasheet - Page 5

• Manufacturer Part Number: PCA9539APW,118
• Description: Interface - I/O Expanders 16bit I2C IO Port
• Manufacturer: NXP Semiconductors

Specifications of PCA9539APW,118

• Maximum Operating Frequency: 100 kHz
• Operating Supply Voltage: 1.65 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-24
• Operating Current: 160 mA
• Output Current: 25 mA
• Power Dissipation: 200 mW
• Product Type: I/O Expanders

NXP Semiconductors
6. Functional description
PCA9539A
Product data sheet
6.1 Device address
Table 3.
[1]
[2]
[3]
Refer to
A1 and A0 are the hardware address package pins and are held to either HIGH (logic 1)
or LOW (logic 0) to assign one of the four possible slave addresses. The last bit of the
slave address (R/W) defines the operation (read or write) to be performed. A HIGH
(logic 1) selects a read operation, while a LOW (logic 0) selects a write operation.
Symbol
P1_6
P1_7
A0
SCL
SDA
V
Fig 4. PCA9539A device address
DD
HWQFN24 package die supply ground is connected to both V
be connected to supply ground for proper device operation. For enhanced thermal, 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.
Pins P0_0 to P0_7 correspond to bits P0.0 to P0.7. At power-up, all I/O are configured as high-impedance
inputs.
Pins P1_0 to P1_7 correspond to bits P1.0 to P1.7. At power-up, all I/O are configured as high-impedance
inputs.
[3]
[3]
Figure 1 “Block diagram of
Pin
TSSOP24
19
20
21
22
23
24
Pin description
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 26 September 2012
HWQFN24
16
17
18
19
20
21
…continued
Low voltage 16-bit I
1
1
fixed
Type
I/O
I/O
I
I
I/O
power
PCA9539A”.
slave address
1
0
Description
Port 1 input/output 6.
Port 1 input/output 7.
Address input 0. Connect directly to V
Serial clock bus. Connect to V
pull-up resistor.
Serial data bus. Connect to V
pull-up resistor.
Supply voltage.
1
2
C-bus I/O port with interrupt and reset
selectable
hardware
A1
SS
A0
002aah062
pin and exposed center pad. V
R/W
PCA9539A
© NXP B.V. 2012. All rights reserved.
DD
DD
through a
through a
DD
SS
or V
pin must
5 of 39
SS
.