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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The FXL6408 is an 8-bit IC-controlled GPIO expander. When configured in Input Mode, the FXL6408 monitors the input ports for data transitions and signals the baseband by asserting the /INT pin. The input default values can be programmed independently, allowing customized input detection. All inputs can be configured with pull-up or pull-down resistors to pre-bias the inputs in open-drain or non-driven applications. When configured in Output Mode, the GPIO pins are capable of delivering 6 mA output drive according to the IC register set. The FXL6408 is designed to allow voltage translation from levels as low as 1.65 V and up to 4.0 V. The FXL6408 features an active LOW RESET input as well as Power-On Reset (POR) circuit and I
Features
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4X Expansion of Connected Processor I/O Ports
Fully Integrated I2C Slave
8 Independently Configurable I/O Ports
Low-Power Quiescent Current: 1.5 µA
Voltage Translation Capable from 1.65 V I2C Port Up to 4.0 V GPIO Pins
Selectable Device Address
6 mA Output Drive
Interrupt Pin to Alert Processor of Status Changes

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