I2C-16IO Gravitech, I2C-16IO Datasheet - Page 2

• Manufacturer Part Number: I2C-16IO
• Description: Daughter Cards & OEM Boards I2C 16-BIT GPIO EXPANDER
• Manufacturer: Gravitech

Specifications of I2C-16IO

• Rohs: yes
• Product: Expansion Boards
• Description/function: 16 bits general purpose parallel input-output expansion using I2C bus
• Dimensions: 1.1 in x 0.7 in
• Interface Type: I2C
• Operating Supply Voltage: 2.3 V to 5.5 V
• Tool Is For Evaluation Of: PCA9535
• For Use With: Breadboards

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