PCF8574PWRG4 - Brand New Texas Instruments I/O Expanders
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Description
The PCF8574PWRG4 is an I/O expander electronic component that provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus). The device includes an 8-bit quasi-bidirectional port and an I2C-bus interface with a low current consumption. It also includes latched outputs with high current drive capability that can directly drive LEDs. Additionally, it has an interrupt line that can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C-bus. The PCF8574PWRG4 can remain a simple slave device by sending an interrupt signal on this line.
Specifications and features
- Operating supply voltage: 2.5 to 6 V
- Low standby current consumption of 10 µA maximum
- I2C-bus to parallel port expander
- Open-drain interrupt output
- 8-bit remote I/O port for the I2C-bus
- Compatible with most microcontrollers
- Latched outputs with high current drive capability for directly driving LEDs
- Address by 3 hardware address pins for use of up to 8 devices (up to 16 with PCF8574A)
- DIP16, or space-saving SO16 or SSOP20 packages
Application Scenarios
Due to its ability to offer general-purpose remote I/O expansion, the PCF8574PWRG4 can be used in various applications, such as controlling LEDs, switches, and other devices. It can also be used in automotive applications, medical devices, and industrial control systems.
Comparison
Advantages- Low standby current consumption
- Ability to control LEDs with high drive capability
- Addressable by 3 hardware address pins for use of up to 8 devices (up to 16 with PCF8574A)
Disadvantages- Limited to providing general purpose remote I/O expansion
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download PCF8574PWRG4
- Chipdatas Part: CD89-PCF8574PWRG4
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- Last Updated: 2024/06/13 18:36 +0800
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