I2C-16IO Gravitech, I2C-16IO Datasheet - Page 3

• 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 needs an external
2.3VDC – 5.5VDC supply.
Power:
• VCC: is an input power 2.3VDC –
• GND: is a common ground for
5.5VDC to I2C-16IO board.
every pin. This pin MUST be
connected
external power supply.
Pin No.
12-19
2-9
10
11
20
21
22
1
Interfaces
Copyright © 2007 MicroResearch
I2C-16IO
GRAVITECH GROUP
-INT-
I/O0.0 – I/O0.7
NC
GND
I/O1.0 – I/O1.7
SCL
SDA
VCC
to
ground
Name
I/O0.0 (2)
I/O0.1 (3)
I/O0.2 (4)
I/O0.3 (5)
I/O0.4 (6)
I/O0.5 (7)
I/O0.6 (8)
I/O0.7 (9)
NC
GND (11)
-INT- (1)
TM
Pin Configuration
(10)
I
of
2
C 16-Bit I/O User Manual
Output
I/O
NC
PWR
I/O
Input
I/O
PWR
the
Type
WWW.GRAVITECH.US
Interrupt output (open drain)
I/O0.0 to I/O0.7
No connect
Supply ground
I/O1.0 to I/O1.7
Serial clock line
Serial data line
Supply voltage
Each I/O pin can be configured as input
or output. Please refer to PCA9535
datasheet for more information.
The
activated when one of the port pins
change state and the pin is configured
as an input. The interrupt is deactivated
when the input returns to its previous
state or the input port register is read. A
pin configured as an output cannot
cause an interrupt. Since each 8-bit port
I/O pins:
-INT- pin:
(21) SDA
(20) SCL
(19) I/O1.7
(18) I/O1.6
(17) I/O1.5
(16) I/O1.4
(15) I/O1.3
(14) I/O1.2
(13) I/O1.1
(12) I/O1.0
(22) VCC
open-drain
Description
interrupt
output
is