pca9535d NXP Semiconductors, pca9535d Datasheet - Page 5

• Manufacturer Part Number: pca9535d
• Description: 16-bit I2c And Smbus, Low Power I/o Port With Interrupt
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9535_PCA9535C_3
Product data sheet
5.2 Pin description
Table 3.
[1]
[2]
Symbol
INT
A1
A2
IO0_0
IO0_1
IO0_2
IO0_3
IO0_4
IO0_5
IO0_6
IO0_7
V
IO1_0
IO1_1
IO1_2
IO1_3
IO1_4
IO1_5
IO1_6
IO1_7
A0
SCL
SDA
V
SS
DD
On the PCA9535 the I/Os are configurable as totem-pole or open-drain, whereas the I/Os on PCA9535C
are open-drain only.
HVQFN and HWQFN package die supply ground is connected to both the V
pad. The 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.
Pin description
Pin
SO24, TSSOP24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
SS
pin must be connected to supply ground for proper device operation. For enhanced thermal,
Rev. 03 — 4 October 2007
16-bit I
HVQFN24,
HWQFN24
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
[2]
2
C-bus and SMBus, low power I/O port with interrupt
Description
interrupt output (open-drain)
address input 1
address input 2
port 0 input/output
supply ground
port 1 input/output
address input 0
serial clock line
serial data line
supply voltage
PCA9535; PCA9535C
[1]
SS
pin and the exposed center
© NXP B.V. 2007. All rights reserved.
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