Overview
The PCA9505DGG,118 from NXP USA Inc. is a 40-bit parallel input/output (I/O) port expansion device designed for I2C-bus applications. This component is organized into 5 banks of 8 I/Os, making it highly versatile for various embedded systems and microcontroller projects. It features a range of functionalities including programmable interrupt mask control, polarity inversion, and active LOW reset and output enable inputs. The device is designed to minimize line disturbance and includes robust I2C-bus state machine and signal transient rejection capabilities.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | Operating Mode | 2.3 | - | 5.5 | V |
| Supply Current (IDD) at VDD = 2.3V | No Load; fSCL = 400 kHz | 1 | - | 1.5 | mA |
| Supply Current (IDD) at VDD = 3.3V | No Load; fSCL = 400 kHz | 1.5 | - | 2 | mA |
| Supply Current (IDD) at VDD = 5.5V | No Load; fSCL = 400 kHz | 2.7 | - | 3.5 | mA |
| LOW-Level Input Voltage (VIL) | SCL, SDA | -0.5 | - | 0.3VDD | V |
| HIGH-Level Input Voltage (VIH) | SCL, SDA | 0.7VDD | - | 5.5 | V |
| Operating Temperature | - | -40 | - | 85 | °C |
| Storage Temperature | - | -65 | - | 150 | °C |
Key Features
- 40-bit parallel input/output (I/O) port expansion organized in 5 banks of 8 I/Os.
- Programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change.
- Polarity Inversion register allows inversion of the polarity of the I/O pins when read.
- Active LOW reset (RESET) input pin resets device to power-up default state.
- 3 programmable address pins allowing 8 devices on the same bus.
- Designed for live insertion with minimal line disturbance and signal transient rejection.
- Low standby current and ESD protection exceeding 2000 V HBM per JESD22-A114.
Applications
The PCA9505DGG,118 is suitable for a variety of applications including industrial control systems, medical devices, consumer electronics, and automotive systems. Its ability to expand I/O ports makes it particularly useful in scenarios where additional I/O lines are needed without adding more microcontrollers or complex wiring. The device's robust I2C-bus state machine and signal transient rejection capabilities ensure reliable operation in noisy environments.
Q & A
- What is the PCA9505DGG,118 used for?
The PCA9505DGG,118 is used for 40-bit parallel input/output (I/O) port expansion in I2C-bus applications. - How many I/O banks does the PCA9505DGG,118 have?
The device is organized into 5 banks of 8 I/Os. - What is the operating voltage range of the PCA9505DGG,118?
The operating voltage range is from 2.3V to 5.5V. - What is the operating temperature range of the PCA9505DGG,118?
The operating temperature range is from -40°C to +85°C. - Does the PCA9505DGG,118 support live insertion?
Yes, it is designed for live insertion with minimal line disturbance and signal transient rejection. - How many devices can be connected on the same bus using the PCA9505DGG,118?
Up to 8 devices can be connected on the same bus using the 3 programmable address pins. - What kind of ESD protection does the PCA9505DGG,118 offer?
The device offers ESD protection exceeding 2000 V HBM per JESD22-A114. - Can the polarity of the I/O pins be inverted on the PCA9505DGG,118?
Yes, the polarity of the I/O pins can be inverted using the Polarity Inversion register. - How does the PCA9505DGG,118 handle interrupts?
The device features programmable Interrupt Mask Control for input pins that do not require an interrupt when their states change. - Is the PCA9505DGG,118 still in production?
No, this product is no longer manufactured.
