I2C-16IO Gravitech

TM 2 I2C-16IO I C 16-Bit I/O User Manual GRAVITECH.US uResearch GRAVITECH GROUP Copyright 2007 MicroResearch GRAVITECH GROUP WWW.GRAVITECH.US TM 2 I2C-16IO I C 16-Bit I/O User Manual Description Features The I2C-16IO board is a 22-pin CMOS Stand alone module, no external device that provides 16 bits of General components required 2 Purpose parallel Input/Output (GPIO) On-board I C address jumpers, 2 expansion using I C bus. There are no pull-up resistors, power and external components required. Only two interrupt LEDs signal lines SDA and SCL plus supply Decoupling supply voltage voltage and ground are required to be Design easy for breadboard connected. This makes it perfect for High quality double sided PCB embedded systems that require more All SMT components input/output ports. Small and compact in size 0.70 x 1.10 inches This board features innovations that set Dual row 0.6 width, 0.1 pitch it apart from other port expander header pins module. Innovations feature like on- Operating power supply voltage 2 board IC address jumpers, pull-up range of 2.3V to 5.5V resistors, power and interrupt LEDs. The Suitable for 2.5V, 3.3V or 5.0V module can be quickly connected microcontroller directly on to the breadboard. The board Active LOW interrupt output is small and compact in size 0.70 x 1.10 Low stand-by current inches. Noise filter on SCL/SDA inputs No glitch on power-up The I2C-16IO is designed base on Internal power-on reset PCA9535 IC. The module consists of 16 I/O pins which default to 16 two 8-bit configuration. Each bit can be inputs configuring as input or output by writing to the I/O configuration bits. The data for 0kHz to 400kHz clock frequency each Input or Output is kept in the ESD protection exceeds 2000V corresponding Input or Output register. HBM per JESD22-A114, 200V The polarity of the read register can be MM per JESD22-A115 and 1000V inverted with the Polarity Inversion CDM per JESD22-C101 Register. All registers can be read by the system master. Applications The module open-drain interrupt output is activated when any input state differs from its corresponding input port register state General Purpose parallel and is used to indicate to the system Input/Output expander for your master that an input state has changed. favorite microcontroller or project board. 2 Three jumper pins vary the fixed I C address and allow up to eight devices to 2 share the same I C bus. That is total of 128 I/O pins 2 * I C is a trademark of Philips Semiconductors Corporation. Copyright 2007 MicroResearch GRAVITECH GROUP WWW.GRAVITECH.US