Overview
The PCAL6416AER is a 16-bit general-purpose input/output (GPIO) expander designed by NXP USA Inc. This component provides remote I/O expansion for most microcontroller families via the I²C-bus and SMBus interfaces. It is particularly useful in applications where additional I/O pins are needed without increasing the complexity of interconnections. The PCAL6416AER is suitable for a variety of applications, including battery-powered mobile devices, industrial automation, and consumer electronics, due to its flexible configuration options and robust design.
Key Specifications
| Specification | Details |
|---|---|
| Number of I/O Pins | 16 individually configurable |
| Interface | I²C-bus and SMBus |
| Supply Voltage Range | 1.65V to 5.5V |
| Operating Temperature Range | -40°C to 85°C |
| Output Types | Open-drain and push-pull |
| Output Current Drive Capability | Up to 25 mA |
| ESD Protection | Exceeds JESD 22 – 2000 V Human-Body Model, 1000 V Charged-Device Model |
| Package Options | TSSOP24, HWQFN24, VFBGA24, X2QFN24 (LGA) |
| Reset Feature | Power-on reset (POR) and manual reset via RESET input |
Key Features
- 16 individually configurable I/O pins with programmable pull-up and pull-down resistors.
- Support for I²C-bus and SMBus interfaces.
- Interrupt output and configuration registers.
- Low-voltage translation capability, allowing connection between devices at different voltage levels.
- Latched outputs with high drive capability (up to 25 mA) for directly driving LEDs.
- No glitch on power-up and noise filter on SCL/SDA inputs.
- Polarity inversion register to save external logic gates.
- Robust design with high ESD protection and latch-up performance exceeding 100 mA per JESD 78, Class II.
Applications
- Industrial automation and control.
- Home and building automation.
- Consumer electronics.
- Medical equipment.
- Automotive electronics.
- Battery-powered mobile devices for interfacing with sensors, push buttons, and keypads.
Q & A
- What is the PCAL6416AER?
The PCAL6416AER is a 16-bit general-purpose I/O expander with I²C-bus and SMBus interface, designed for remote I/O expansion in various microcontroller-based systems.
- What are the key interfaces supported by the PCAL6416AER?
The PCAL6416AER supports both I²C-bus and SMBus interfaces.
- What is the supply voltage range of the PCAL6416AER?
The supply voltage range is from 1.65V to 5.5V.
- What are the output types available on the PCAL6416AER?
The output types include open-drain and push-pull.
- What is the maximum output current drive capability of the PCAL6416AER?
The maximum output current drive capability is up to 25 mA.
- Does the PCAL6416AER have any reset features?
Yes, it has both power-on reset (POR) and manual reset via the RESET input.
- What are the package options available for the PCAL6416AER?
The package options include TSSOP24, HWQFN24, VFBGA24, and X2QFN24 (LGA).
- What kind of ESD protection does the PCAL6416AER offer?
The PCAL6416AER exceeds JESD 22 – 2000 V Human-Body Model and 1000 V Charged-Device Model for ESD protection.
- In what temperature range can the PCAL6416AER operate?
The operating temperature range is from -40°C to 85°C.
- What are some common applications of the PCAL6416AER?
Common applications include industrial automation, home and building automation, consumer electronics, medical equipment, and automotive electronics.
