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PCA9505DGG
+BOMInterface - I/O Expanders 40-BIT I2C FM TP GPIO INT RST
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ManufacturerNXP Semiconductors
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Mfr. Part #PCA9505DGG
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Datasheet PCA9505DGG DataSheet
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In Stock8430
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Specifications
| Attribute | Value |
| Packaging | Tube |
| Standard Pack Qty | 875 |
Overview
Description
Key features of the PCA9505DGG include five 8-bit bidirectional I/O ports, each independently configurable. It operates over a wide voltage range, enhancing versatility across different applications. The I2C-bus interface allows for easy integration, supporting standard, fast, and high-speed modes. The PCA9505DGG also includes interrupt outputs, allowing for immediate reaction to input changes, thereby improving system responsiveness.
This IC supports addressable I2C communication, enabling multiple devices on the same bus without conflict. Its package is designed to minimize space on PCBs, making it suitable for compact applications. Overall, the PCA9505DGG is a reliable solution for expanding I/O capabilities in diverse electronic systems.
Equivalent
1. NXP PCA9555 - 16-bit I2C and SMBus I/O port with interrupt.
2. TI PCA9535 - 16-bit I2C and SMBus I/O expander.
3. Microchip MCP23017 - 16-bit I2C I/O expander with interrupt.
4. OnSemi CAT9555 - 16-bit I2C I/O port with interrupt.
Always verify pin compatibility and specific requirements before substituting.
Features
1. I²C Interface: Supports both standard mode (100 kHz) and fast mode (400 kHz) I²C-bus communication, allowing for easy integration with various microcontrollers.
2. 40 GPIO Pins: The device offers five 8-bit I/O ports, providing a total of 40 GPIO lines, which can be configured individually as either inputs or outputs.
3. Interrupt Logic: Includes interrupt capability for enhanced monitoring of input changes, allowing the processor to respond immediately to external events.
4. Polarity Inversion: Programmable polarity inversion is available for each GPIO, enabling flexible signal management.
5. High Current Drive: Capable of sinking up to 25 mA per pin and sourcing up to 10 mA, suitable for driving LEDs or other moderate-power loads.
6. Integrated Pull-up Resistors: Configurable pull-up resistors are available on all pins to ensure reliable signal levels.
7. Wide Voltage Range: Operates over a wide VDD range from 2.3 V to 5.5 V, making it suitable for diverse applications.
8. ESD Protection: Enhanced ESD protection ensures robustness in various environments.
These features make the PCA9505DGG suitable for expanding the I/O capabilities of microcontrollers in embedded systems.
Pinout
The PCA9505DGG comes in a TSSOP (Thin Shrink Small Outline Package) with a total pin count of 56. The pins are used for various functions, including:
- Power supply connections (VDD and GND).
- I2C-bus interface pins (SDA and SCL) for data and clock signals.
- Multiple GPIO pins organized in five 8-bit ports (P0 to P4).
- Interrupt output pin (INT) for signaling changes on input port data.
- Reset pin (RESET) for resetting the device.
Each port can be individually configured as either an input or an output. The device is often utilized in systems requiring expanded I/O capabilities, such as embedded systems, to interface with sensors, actuators, or other peripheral devices.
Manufacturer
Application
1. Industrial Control Systems: Used for monitoring and controlling various industrial processes.
2. Consumer Electronics: Provides additional I/O ports in devices like TVs, set-top boxes, and gaming consoles.
3. Networking Equipment: Supports configuration and control of network hardware.
4. Automotive Systems: Used in body electronics for signal monitoring and control.
5. Home Automation: Facilitates integration and control of smart home devices.
Its ability to expand I/O capabilities makes it versatile for various embedded systems requiring efficient communication and control.