| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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1,949 pcs
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1949 pcs | On Request | 1 | On Request | On Request | 1727+5 | On Request | On Request |
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The Texas Instruments PCA9539PWR is a 16-bit I/O expander that facilitates communication over I2C and SMBus interfaces. It supports a wide operating voltage range from 2.3V to 5.5V, making it versatile for various system designs. The device operates at a clock frequency of up to 400 kHz, ensuring efficient data transfer.
Key features include an interrupt output and a reset pin, providing enhanced control and monitoring capabilities. The PCA9539PWR is available in a 24-TSSOP package, suitable for surface mount applications. Its I/O ports are 5V tolerant, offering compatibility with a broad range of microcontrollers. The expander also boasts low standby current consumption, typically 1 µA maximum.
This I/O expander is designed for applications requiring additional digital I/Os without consuming significant microcontroller resources. Its robust features, including latched outputs with high-current drive capability, make it suitable for directly driving LEDs. The device also offers addressability via two hardware address pins, allowing up to four devices on the same bus.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.75 | $1.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9539PWR operates from 2.3V to 5.5V.
The PCA9539PWR is available in a 24-TSSOP package.
The operating temperature range is -40°C to 85°C.
Yes, the PCA9539PWR features an interrupt output.
The maximum clock frequency is 400 kHz.