Overview
The PCA9536DGKRG4, produced by Texas Instruments, is a 4-bit I/O expander designed for use with the I2C and SMBus interfaces. This device is optimized for general-purpose remote I/O expansion and is compatible with most microcontroller families. It operates within a voltage range of 2.3 V to 5.5 V, making it versatile for various applications. The PCA9536DGKRG4 features configuration registers for input or output selection, input port, output port, and polarity inversion, allowing for flexible control over the I/O pins. At power-on, the I/Os are configured as inputs with a weak pullup to VCC, but can be reconfigured by the system controller as needed.
Key Specifications
| Parameter | Value |
|---|---|
| Series | PCA9536 |
| Interface Type | I2C, Serial, SMBus |
| Number of GPIO | 4 I/O |
| Supply Voltage - Min | 2.3 V |
| Max Supply Voltage | 5.5 V |
| Maximum Clock Frequency | 400 kHz |
| Minimum Operating Temperature (°C) | -40 |
| Maximum Operating Temperature (°C) | +85 |
| ESD Protection | 2000-V Human-body model, 200-V Machine model, 1000-V Charged-device model |
| Package | 8-TSSOP |
| Mounting Style | SMD/SMT |
Key Features
- Available in the Texas Instruments NanoFree™ Package.
- Low standby current consumption of 1 µA Max.
- I2C to parallel port expander.
- 5-V Tolerant I/O ports.
- 400-kHz fast I2C bus.
- Input and 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 capability for directly driving LEDs).
- ESD Protection exceeds JESD 22 standards).
Applications
The PCA9536DGKRG4 is suitable for a wide range of applications, including industrial, commercial, and consumer electronics. It is particularly useful in systems that require remote I/O expansion, such as in automation, IoT devices, and embedded systems. The device's ability to operate within a wide voltage range and its low standby current consumption make it an ideal choice for battery-powered devices and energy-efficient designs.
Q & A
- What is the PCA9536DGKRG4 used for?
The PCA9536DGKRG4 is a 4-bit I/O expander used for general-purpose remote I/O expansion in various microcontroller-based systems.
- What is the operating voltage range of the PCA9536DGKRG4?
The PCA9536DGKRG4 operates within a voltage range of 2.3 V to 5.5 V.
- What interface does the PCA9536DGKRG4 use?
The PCA9536DGKRG4 uses the I2C and SMBus interfaces.
- How many GPIO pins does the PCA9536DGKRG4 have?
The PCA9536DGKRG4 has 4 GPIO pins.
- What is the maximum clock frequency of the PCA9536DGKRG4?
The maximum clock frequency of the PCA9536DGKRG4 is 400 kHz.
- Does the PCA9536DGKRG4 have ESD protection?
Yes, the PCA9536DGKRG4 has ESD protection exceeding JESD 22 standards, including 2000-V Human-body model, 200-V Machine model, and 1000-V Charged-device model).
- What is the package type of the PCA9536DGKRG4?
The PCA9536DGKRG4 is available in an 8-TSSOP package.
- What is the standby current consumption of the PCA9536DGKRG4?
The standby current consumption of the PCA9536DGKRG4 is 1 µA Max).
- Can the PCA9536DGKRG4 drive LEDs directly?
Yes, the PCA9536DGKRG4 has latched outputs with high-current drive capability for directly driving LEDs).
- How are the I/Os configured at power-on?
At power-on, the I/Os are configured as inputs with a weak pullup to VCC).
- Can the polarity of the input port be inverted?
Yes, the polarity of the input port can be inverted using the Polarity Inversion register).
