Overview
The PCA9536TK,118 is an 8-pin CMOS device produced by NXP USA Inc., designed to provide 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications. This device is part of NXP's family of I²C-bus I/O expanders, offering a simple solution for adding additional I/O capabilities to systems. It is particularly useful for applications involving ACPI power switches, sensors, push buttons, LEDs, fans, and other similar components.
Key Specifications
| Parameter | Conditions | Min | Max | Unit |
|---|---|---|---|---|
| VDD Supply Voltage | 0.5 | 6.0 | V | |
| VI/O Voltage on an Input/Output Pin | VSS to 5.5 V | 0.5 | 5.5 | V |
| IO(IOn) Output Current on Pin IOn | 50 | mA | ||
| IDD Supply Current | 85 | mA | ||
| ISS Ground Supply Current | 100 | mA | ||
| Ptot Total Power Dissipation | 200 | mW | ||
| Tstg Storage Temperature | -65 | 150 | °C | |
| Tamb Ambient Temperature | -40 | 85 | °C | |
| Tj(max) Maximum Junction Temperature | 125 | °C |
Key Features
- Provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications.
- Includes a 4-bit Configuration register, 4-bit Input Port register, 4-bit Output Port register, and a 4-bit Polarity Inversion register.
- I/Os can be configured as inputs or outputs by writing to the I/O configuration bits.
- Each I/O has a weak pull-up to VDD (100 kΩ typical) when configured as an input.
- Supports both standard-mode and fast-mode I²C-bus.
- Internal Power-On Reset (POR) holds the device in a reset condition until VDD reaches VPOR (typical 1.7V, max 2.2V).
Applications
The PCA9536TK,118 is suitable for a variety of applications, including:
- ACPI power switches
- Sensors
- Push buttons
- LEDs
- Fans
- Other peripheral devices requiring additional I/O capabilities.
Q & A
- What is the PCA9536TK,118 used for? The PCA9536TK,118 is used to provide 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications.
- What types of registers does the PCA9536TK,118 have? It includes a 4-bit Configuration register, 4-bit Input Port register, 4-bit Output Port register, and a 4-bit Polarity Inversion register.
- How are the I/Os configured on the PCA9536TK,118? The I/Os can be configured as inputs or outputs by writing to the I/O configuration bits.
- What is the typical pull-up resistance for the I/Os when configured as inputs? Each I/O has a weak pull-up to VDD with a typical resistance of 100 kΩ.
- What are the operating temperature ranges for the PCA9536TK,118? The ambient temperature range is -40°C to +85°C, and the storage temperature range is -65°C to +150°C.
- What is the maximum junction temperature for the PCA9536TK,118? The maximum junction temperature is +125°C.
- How does the Power-On Reset (POR) function on the PCA9536TK,118? The internal POR holds the device in a reset condition until VDD reaches VPOR (typical 1.7V, max 2.2V).
- What are the package options for the PCA9536TK,118? The device is available in SO8, TSSOP8, and HVSON8 packages.
- What is the maximum total power dissipation for the PCA9536TK,118? The maximum total power dissipation is 200 mW.
- Can the PCA9536TK,118 be used with both standard-mode and fast-mode I²C-bus? Yes, it supports both standard-mode and fast-mode I²C-bus.
