Allicdata Part #: | 296-20954-2-ND |
Manufacturer Part#: |
PCA9539DGVR |
Price: | $ 0.67 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC I/O EXPANDER I2C 16B 24TVSOP |
More Detail: | I/O Expander 16 I²C, SMBus 400kHz 24-TVSOP |
DataSheet: | PCA9539DGVR Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
2000 +: | $ 0.59875 |
6000 +: | $ 0.57658 |
10000 +: | $ 0.55440 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Number of I/O: | 16 |
Interface: | I²C, SMBus |
Interrupt Output: | Yes |
Features: | POR |
Output Type: | Push-Pull |
Current - Output Source/Sink: | 10mA, 25mA |
Clock Frequency: | 400kHz |
Voltage - Supply: | 2.3 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 24-TFSOP (0.173", 4.40mm Width) |
Supplier Device Package: | 24-TVSOP |
Base Part Number: | PCA9539 |
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The PCA9539DGVR is a dual bidirectional I/O expander bus device used to expand the number of I/O ports available to a PC. It is based on a CMOS logic and operates with a single supply voltage. This device has two independent I/O ports with 16 bidirectional access pins that are used to supplement the I/O ports of a microcontroller. It is a very versatile and cost-effective solution for increasing the number of I/O lines in a system.
Applications of PCA9539DGVR include extending the I/O lines of a microcontroller, providing two bidirectional I/O ports for multiple devices, driving LCD modules, keyboard interfacing and providing a low-cost I/O port expansion. It can also be used in systems requiring bidirectional communication, such as multi-channel e-meters and timers, PC-based home and industrial automation systems and portable data terminal communication.
The working principle of PCA9539DGVR is based on its dual bidirectional ports. It has two independent 16-bit I/O ports, with each port having eight input lines and eight output lines. Each output pin can sink 4 mA and each input pin can withstand voltages up to 5.5 V. The I/O pins can be configured as input pins or as output pins by means of a set/reset instruction. The device also features an interrupt function which can be used to detect logic input level changes on one or both of the I/O ports.
The PCA9539DGVR is a versatile and highly cost-effective device for adding I/O ports to a PC. It can be used in applications such as e-meters and timers, automotive systems, keypad interfaces, LCD interfaces and home automation. The dual bidirectional ports enable bidirectional communication between a microcontroller and external devices with a single line connection. Additionally, the interrupt feature allows for easy detection of logic level changes.
The specific data is subject to PDF, and the above content is for reference
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