Overview
The PCA9536D118 is a 4-bit I²C-bus and SMBus I/O port expansion device manufactured by NXP USA Inc. This CMOS device is designed to provide additional general-purpose parallel input/output (GPIO) capabilities for I²C-bus and SMBus applications. It is part of NXP Semiconductors' family of I²C-bus I/O expanders, aimed at enhancing the functionality of various systems by adding more I/O ports.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| VDD supply voltage | 2.3 | - | 5.5 | V |
| IDD supply current (operating mode) | - | 290 | 400 | μA |
| Istb standby current | - | 225 | 350 | μA |
| VPOR power-on reset voltage | 1.7 | - | 2.2 | V |
| Clock frequency | 0 | - | 400 kHz | - |
| ESD protection | - | - | 2000 V HBM, 200 V MM, 1000 V CDM | - |
| Packages offered | - | - | SO8, TSSOP8 (MSOP8), HVSON8 | - |
Key Features
- Provides 4 bits of general-purpose parallel input/output (GPIO) expansion.
- Compatible with I²C-bus and SMBus protocols.
- Configurable I/Os as either inputs or outputs via the I/O configuration register.
- Includes a 4-bit Configuration register, 4-bit Input Port register, 4-bit Output Port register, and a 4-bit Polarity Inversion register.
- Power-on reset (POR) feature to initialize the device to default states upon power-up.
- ESD protection exceeding 2000 V HBM, 200 V MM, and 1000 V CDM.
- Latch-up testing compliant with JEDEC Standard JESD78.
Applications
- ACPI power switches.
- Sensors and monitoring systems.
- Push buttons and user interfaces.
- LED indicators and lighting control.
- Fan control and other motor control applications.
Q & A
- What is the PCA9536D118 used for?
The PCA9536D118 is used to provide 4-bit GPIO expansion for I²C-bus and SMBus applications.
- What are the supported I/O configurations?
The I/Os can be configured as either inputs or outputs via the I/O configuration register.
- What are the available package types for the PCA9536D118?
The device is available in SO8, TSSOP8 (MSOP8), and HVSON8 packages.
- What is the clock frequency range of the PCA9536D118?
The clock frequency range is from 0 Hz to 400 kHz.
- Does the PCA9536D118 have ESD protection?
Yes, it has ESD protection exceeding 2000 V HBM, 200 V MM, and 1000 V CDM.
- How does the power-on reset (POR) work?
The POR holds the device in a reset condition until VDD reaches VPOR, then releases the reset and initializes the device to its default states.
- What is the maximum current that can be sourced by all I/Os combined?
The total current sourced by all I/Os must be limited to 85 mA.
- Can the input voltage exceed VDD?
Yes, the input voltage may be raised above VDD to a maximum of 5.5 V.
- What are some common applications of the PCA9536D118?
Common applications include ACPI power switches, sensors, push buttons, LEDs, and fan control.
- Is the PCA9536D118 compliant with any specific standards for latch-up testing?
Yes, it is compliant with JEDEC Standard JESD78.
