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GENERAL DESCRIPTION

The SX1504, SX1505 and SX1506 are complete General Purpose parallel Input/Output (GPIO) expanders ideal for low power handheld battery powered equipment. They allow easy serial expansion of I/O through a standard I2C interface. GPIO devices can provide additional control and monitoring when the microcontroller or chipset has insufficient I/O ports, or in systems where serial communication and control from a remote location is advantageous.

KEY PRODUCT FEATURES

? 4/8/16 channel of I/Os

? True bi-directional style I/O

? Programmable Pull-up/Pull-down

? Push/Pull outputs

? 2.5V to 5.5V independent operating voltage for all supply rails (VDDM, VCC1, VCC2)

? 5.5V compatible I/Os, up to 24mA output sink (no total sink current limit)

? Fully programmable logic functions (PLD)

? 400kHz 2-wire I2C compatible slave interface

? Open drain active low interrupt output (NINT)

? Bit maskable

? Programmable edge sensitivity

? Power-On Reset and reset input (NRESET)

? Ultra low current consumption of typ. 1uA

? -40°C to +85°C operating temperature range

? Ultra-Thin 3x3mm QFN-UT-20 and TSSOP-20 packages (SX1504/SX1505)

? Ultra-Thin 4x4mm QFN-UT-28 and TSSOP-28 packages (SX1506)

TYPICAL APPLICATIONS

? Cell phones, PDAs, MP3 players

? Digital camera

? Portable multimedia player

? Notebooks

? GPS Units

? Industrial, ATE

? Any battery powered equipment