PCA9536D I/O Expander: Pinout, Specification, and Datasheet
8 Termination 1.27mm 2.5/5V Gold I/O Expander CA9536 8 Pin 3V 8-SOIC (0.154, 3.90mm Width)
Unit Price: $2.368613
Ext Price: $2.37









8 Termination 1.27mm 2.5/5V Gold I/O Expander CA9536 8 Pin 3V 8-SOIC (0.154, 3.90mm Width)
This 4-bit I/O expander for the two-line bidirectional bus (I2 Package C) is designed for 2.3-V to 5.5-V VCC operation.

Raspberry Pi PCA9536 Temperature Sensor Java Tutorial
PCA9536D Pinout


PCA9536D CAD Model
Symbol

Footprint

3D Model

PCA9536D Description
It provides general-purpose remote I/O expansion for most microcontroller families via the I 2C interface [serial clock (SCL), serial data (SDA)].
The PCA9536D features 4-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low) registers. At power-on, the I/Os are configured as inputs with a weak pullup to VCC. However, the system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. If no signals are applied externally to the PCA9536, the voltage level is 1, or high, because of the internal pullup resistors. The data for each input or output is stored in the corresponding Input Port or Output Port register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
The system master can reset the PCA9536 in the event of a timeout or other improper operation by utilizing the power-on reset feature, which puts the registers in their default state and initializes the I 2C/SMBus state machine.
The device's outputs (latched) have a high-current drive capability for directly driving LEDs. It has low current consumption.
PCA9536D Features
• Available in the Texas Instruments NanoFree™ package
• Low standby current consumption of 1 μA Max
• I 2C to parallel port expander
• Operating power-supply voltage range of 2.3V to 5.5V
• 5-V tolerant I/O ports
• 400-kHz fast I 2C Bus
• Input/Output configuration register
• Polarity inversion register
• Internal power-on reset
• No glitch on power-up
• Power-up with all channels configured as inputs
• Noise filter on SCL/SDA inputs
• Latched outputs with high-current drive, maximum capability for directly driving LEDs
• Latch-up performance exceeds 100 mA per JESD 78, Class II
• ESD protection exceeds JESD 22
– 2000-V human-body model (A114-A)
– 200-V machine model (A115-A)
– 1000-V charged-device ,model (C101)
Specifications
- TypeParameter
- Lifecycle Status
Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.
ACTIVE (Last Updated: 1 day ago) - Factory Lead Time6 Weeks
- Contact Plating
Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.
Gold - Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Surface Mount - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Surface Mount - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
8-SOIC (0.154, 3.90mm Width) - Number of Pins8
- Weight72.603129mg
- Number of I/Os4
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~85°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e4 - Pbfree Code
The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.
yes - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations8
- ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - Voltage - Supply
Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.
2.3V~5.5V - Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
DUAL - Terminal Form
Occurring at or forming the end of a series, succession, or the like; closing; concluding.
GULL WING - Peak Reflow Temperature (Cel)
Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.
260 - Supply Voltage
Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.
3V - Terminal Pitch
The center distance from one pole to the next.
1.27mm - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
CA9536 - Pin Count
a count of all of the component leads (or pins)
8 - Output Type
The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.
Push-Pull - Operating Supply Voltage
The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.
5.5V - Power Supplies
an electronic circuit that converts the voltage of an alternating current (AC) into a direct current (DC) voltage.?
2.5/5V - Interface
In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.
I2C, SMBus - Number of Ports
A port is identified for each transport protocol and address combination by a 16-bit unsigned number,.
1 - Number of Bits4
- Clock Frequency
Clock frequency, also known as clock speed, refers to the rate at which a processor or electronic component can execute instructions. It is measured in hertz (Hz) and represents the number of cycles per second that the component can perform. A higher clock frequency typically indicates a faster processing speed and better performance. However, it is important to note that other factors such as architecture, efficiency, and workload also play a significant role in determining the overall performance of a component. In summary, clock frequency is a crucial parameter that influences the speed and efficiency of electronic components in processing data and executing tasks.
400kHz - Supply Current-Max
Supply Current-Max refers to the maximum amount of current that an electronic component or circuit can draw from its power supply under specified operating conditions. It is a critical parameter that determines the power consumption and thermal performance of the device. Exceeding this limit can lead to overheating, potential damage, or failure of the component. Knowing the Supply Current-Max helps in designing circuits that ensure proper operation and reliability.
0.15mA - Interrupt Output
In electronic components, "Interrupt Output" refers to a feature that allows a device to signal the occurrence of a specific event or condition that requires immediate attention from the system or user. When the specified event occurs, the interrupt output generates a signal to pause the normal operation of the device and divert the attention to handle the urgent task. This feature is commonly used in microcontrollers, processors, and other integrated circuits to efficiently manage tasks and prioritize critical operations. By utilizing interrupt outputs, electronic systems can respond promptly to important events, improve overall performance, and enhance real-time responsiveness.
No - Current - Output Source/Sink
The parameter "Current - Output Source/Sink" in electronic components refers to the maximum amount of current that the component can either source (provide) or sink (absorb) at its output pin. This parameter is crucial in determining the capability of the component to drive external loads such as other components or devices. The source current indicates the maximum current that the component can supply to the load, while the sink current indicates the maximum current that the component can draw from the load. Understanding this parameter is essential for designing circuits that require specific current-handling capabilities to ensure proper functionality and reliability.
10mA 25mA - Features
In the context of electronic components, the term "Features" typically refers to the specific characteristics or functionalities that a particular component offers. These features can vary depending on the type of component and its intended use. For example, a microcontroller may have features such as built-in memory, analog-to-digital converters, and communication interfaces like UART or SPI.When evaluating electronic components, understanding their features is crucial in determining whether they meet the requirements of a particular project or application. Engineers and designers often look at features such as operating voltage, speed, power consumption, and communication protocols to ensure compatibility and optimal performance.In summary, the "Features" parameter in electronic components describes the unique attributes and capabilities that differentiate one component from another, helping users make informed decisions when selecting components for their electronic designs.
POR - Height1.75mm
- Length4.9mm
- Width3.91mm
- Thickness
Thickness in electronic components refers to the measurement of how thick a particular material or layer is within the component structure. It can pertain to various aspects, such as the thickness of a substrate, a dielectric layer, or conductive traces. This parameter is crucial as it impacts the electrical, mechanical, and thermal properties of the component, influencing its performance and reliability in electronic circuits.
1.58mm - REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
PCA9536D Typical Application

PCA9536D Functional Block Diagram


PCA9536D Manufacturer
As a global semiconductor company operating in 35 countries, Texas Instruments (TI) is first and foremost a reflection of its people. From the TIer who unveiled the first working integrated circuit in 1958 to the more than 30,000 TIers around the world today who design, manufacture, and sell analog and embedded processing chips, we are problem-solvers collaborating to change the world through technology.
Trend Analysis
Datasheet PDF
- PCN Design/Specification :
Buying AD844ANZ Online: How to Find Reliable Suppliers28 May 2025140
A Comprehensive Guide to LTC6404IUD-1#PBF ADC Driver06 March 202499
L293D Vs. L298N: What’s The Difference?20 December 202324236
Renesas RX21A Group Microcontroller Datasheet Overview29 February 2024513
BC549 Bipolar Transistor[FAQ+Video]:Pinout, datasheet, and Circuit06 April 20224064
LM324N Operational Amplifiers: Pinout, Datasheet and Features05 July 202121624
PC817 Optoisolators Transistor Photovoltaic 4DIP[Video]: Pinout, Datasheet, and Equivalents24 March 20223994
TIP42C Power Transistor: Pinout, Datasheet, and Applications22 July 202127589
What is a SAW Sensor? Types, Working and Applications29 March 202119126
What is a Fiber Optic Sensor?31 October 20259828
What is Conductivity Sensor?20 June 202211078
What is Power Factor Correction (PFC)?10 December 20213772
The U.S. Semiconductor Sector Faces Workforce Challenges Amidst Surging Demand27 November 20233432
The Future of Automated and Additive Manufacturing for Power Electronics24 May 20233080
Shenzhen: This Year Will Focus on Promoting SMIC and CR Micro 12-inch Project13 April 20226296
What is a Wireless Network Adapter?01 June 20216363
Texas Instruments
In Stock: 95
Minimum: 1 Multiples: 1
Qty
Unit Price
Ext Price
1
$2.368613
$2.37
10
$2.234541
$22.35
100
$2.108057
$210.81
500
$1.988733
$994.37
1000
$1.876163
$1,876.16
Not the price you want? Send RFQ Now and we'll contact you ASAP.
Inquire for More Quantity


Product
Brand
Articles
Tools









