PCA9539D,112 NXP Semiconductors, PCA9539D,112 Datasheet - Page 6

• Manufacturer Part Number: PCA9539D,112
• Description: IC I/O EXPANDER I2C 16B 24SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9539D,112

• Interface: I²C, SMBus
• Number Of I /o: 16
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Includes: POR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935277297112; PCA9539D; PCA9539D

NXP Semiconductors
6. Functional description
PCA9539_PCA9539R_5
Product data sheet
6.2.1 Command byte
6.1 Device address
6.2 Registers
Refer to
The command byte is the first byte to follow the address byte during a write transmission.
It is used as a pointer to determine which of the following registers will be written or read.
Table 4.
Command
0
1
2
3
4
5
6
7
Fig 5. PCA9539; PCA9539R device address
Figure 1 “Block diagram of PCA9539;
Command byte
Register
Input port 0
Input port 1
Output port 0
Output port 1
Polarity inversion port 0
Polarity inversion port 1
Configuration port 0
Configuration port 1
16-bit I
2
Rev. 05 — 28 July 2008
C-bus and SMBus low power I/O port with interrupt and reset
1
1
fixed
slave address
1
0
PCA9539; PCA9539R
1
PCA9539R”.
programmable
A1
002aad724
A0
R/W
© NXP B.V. 2008. All rights reserved.
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