| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,147 pcs
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3147 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The PCA9539DBQR from Texas Instruments is a 16-bit I/O expander designed for use with I2C and SMBus interfaces. It offers a wide operating voltage range from 2.3V to 5.5V, making it compatible with various microcontroller systems. The device includes features such as an open-drain active-low interrupt output and an active-low reset input, enhancing system control and error handling.
With a maximum clock frequency of 400 kHz, the PCA9539DBQR facilitates efficient communication. Its I/O ports are 5-V tolerant and provide latched outputs with high-current drive capability, suitable for directly driving LEDs. The expander supports addressing by two hardware address pins, allowing up to four devices on the same bus.
Packaged in a 24-SSOP, the PCA9539DBQR is designed for surface mounting. It exhibits low standby-current consumption of 1 µA maximum and meets stringent ESD protection standards, including 2000-V Human-body model and 1000-V Charged-device model. Latch-up performance exceeds 100 mA per JESD 78, Class II.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.47 | $1.47 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9539DBQR operates from 2.3V to 5.5V.
The PCA9539DBQR is available in a 24-SSOP package.
The operating temperature range is -40°C to 85°C.
The RoHS status is RoHS3 Compliant.