| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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3,000 pcs
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3000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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The PCAL9539APW,118 from NXP Semiconductors is a 16-bit General Purpose Input/Output (GPIO) expander designed for I2C-bus and SMBus applications. It offers a wide operating voltage range from 1.65V to 5.5V, making it suitable for interfacing with modern microprocessors and microcontrollers. This device features interrupt and reset capabilities, with an open-drain interrupt output that signals changes in input states.
Key technical specifications include a 400 kHz clock frequency, support for both open-drain and push-pull output types, and 16 input/output channels. It provides output current capabilities of 10mA and 25mA, suitable for driving LEDs. The device operates within a temperature range of -40°C to 85°C.
Packaged in a 24-TSSOP, the PCAL9539APW,118 is designed for surface mount applications. It includes features like Power-On Reset (POR) and Agile I/O capabilities such as programmable output drive strength and latchable inputs. The low standby current consumption of 1.5 µA makes it an energy-efficient solution for systems requiring additional I/Os with minimal interconnections.
This I/O expander is a pin-to-pin replacement for PCA9539 and PCA9539A, with the PCAL9539A powering up with all I/O interrupts masked for a spurious-interrupt-free board bring-up. It is ideal for applications like ACPI power switches, sensor interfaces, push button monitoring, and fan control.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.15 | $1.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 1.65V to 5.5V.
The operating temperature range is -40°C to 85°C.
It is supplied in a 24-TSSOP package for surface mounting.
The clock frequency is 400 kHz.
Yes, it has an open-drain interrupt output.
The standby current consumption is 1.5 µA.