PCA9536D,118 NXP Semiconductors, PCA9536D,118 Datasheet - Page 4

• Manufacturer Part Number: PCA9536D,118
• Description: IC I/O EXPANDER I2C 4B 8SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9536D,118

• Package / Case: 8-SOIC (3.9mm Width)
• Interface: I²C, SMBus
• Number Of I /o: 4
• 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: PCA9536
• Number Of Lines (input / Output): 4.0 / 4.0
• Operating Supply Voltage: 2.3 V to 5.5 V
• Power Dissipation: 200 mW
• Operating Temperature Range: - 40 C to + 85 C
• Input Voltage: 5 V
• Logic Type: I2C, SMBus
• Maximum Clock Frequency: 400 KHz
• Mounting Style: SMD/SMT
• Number Of Input Lines: 4.0
• Number Of Output Lines: 4.0
• Output Current: 50 mA
• Output Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 568-3615 - DEMO BOARD I2C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-1835-2; 935277415118; PCA9536D-T

NXP Semiconductors
6. Functional description
PCA9536_5
Product data sheet
6.1.1 Command byte
6.1.2 Register 0 - Input Port register
6.1 Registers
Refer to
Table 3.
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.
This register is a read-only port. It reflects the incoming logic levels of the pins, regardless
of whether the pin is defined as an input or an output by Register 3. Writes to this register
have no effect.
The default ‘X’ is determined by the externally applied logic level, normally logic 1 when
no external signal externally applied because of the internal pull-up resistors.
Table 4.
Legend: * default value
Command
0
1
2
3
Bit
7
6
5
4
3
2
1
0
Symbol
I7
I6
I5
I4
I3
I2
I1
I0
Figure 1 “Block diagram of
Command byte
Register 0 - Input Port register bit description
Protocol
read byte
read/write byte
read/write byte
read/write byte
Access
read only
read only
read only
read only
read only
read only
read only
read only
Rev. 05 — 25 January 2010
Value
1*
1*
1*
1*
X
X
X
X
Function
Input Port register
Output Port register
Polarity Inversion register
Configuration register
PCA9536”.
Description
not used
determined by externally applied logic level
4-bit I
2
C-bus and SMBus I/O port
PCA9536
© NXP B.V. 2010. All rights reserved.
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