SX1503 Datasheet | SEMTECH

DESCRIPTION The SX1501, SX1502 and SX1503 are plete ultra low voltage 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 munication and control from a remote location is advantageous. These devices can also act as a level shifter to connect a microcontroller running at one voltage level to a ponent running at a different voltage level. The core is operating as low as 1.2V while the I/O banks can operate between 1.2V and 5.5V independent of the core voltage and each other. Each GPIO is programmable via 8-bit configuration registers. Data registers, direction registers, pullup/pull-down registers, interrupt mask registers and interrupt registers allow the system master to program and configure 4 or 8 or 16-GPIOs using a standard 400k Hz I2C interface. The SX1501, SX1502 and SX1503 offer a unique fully programmable logic functions like a PLD to give more flexibility and reduce external logic gates used for standard applications. The SX1501, SX1502 and SX1503 have the ability to generate mask-programmable interrupts based on falling/rising edge of any of its GPIO lines. A dedicated pin indicates to a host controller that a state change occurred in one or more of the GPIO lines. The SX1501, SX1502 and SX1503 each e in a small QFN-UT-20/28 package. All devices are rated from -40°C to +85°C temperature range. ORDERING INFORMATION Part Number I/O Channels Package SX1501I087TRT 4 QFN-UT-20 SX1502I087TRT 8 QFN-UT-20 SX1503I091TRT 16 QFN-UT-28 SX1502EVK(1) 8 Evaluation Kit (1)SX1502I087TRT based, unique evaluation kit for the three parts. KEY PRODUCT Features - 4/8/16 channel of I/Os True bi-directional style I/O Programmable Pull-up/Pull-down Push/Pull outputs - 1.2V to 5.5V independent...