I2C-7SEG Gravitech, I2C-7SEG Datasheet - Page 4

• Manufacturer Part Number: I2C-7SEG
• Description: Display Development Tools I2C 4-DIGIT 7-SEGMENT DISPLAY
• Manufacturer: Gravitech

Specifications of I2C-7SEG

• Rohs: yes
• Product: LED Display Boards
• Tool Is For Evaluation Of: SAA1064
• Interface Type: I2C
• Operating Supply Voltage: 4.5 V to 15 V
• Description/function: 4 digit 7 segment display
• Dimensions: 1.5 in x 2.05 in

Default
manufacture is 0x70 for write and 0x71 for
read.
ADR = GND
Internal addressing mode: The address
can be easily change by solder the bridge
between the middle pad of “ADR” to VCC
or GND at the bottom of the module.
These two options allow up to two devices
to share the same I
However, if you wish to connect more
than two modules on the bus, the external
address can be use to connect up to four
modules. That is total of 16-digit. To use
external address selection, remove all of
the
Connect voltage to the ADR pin 5
according to the table below.
ADR Voltage
I
2
C address:
3/8 VCC
5/8 VCC
GND
VCC
Module Configuration
solder
I2C-7SEG
address
bridge
Copyright © 2007 MicroResearch
Read Address
GRAVITECH GROUP
2
C bus.
70
72
74
76
shipped
from
TM
I
2
ADR
Write Address
C 4-DIGIT 7-SEGMENT DISPLAY
from
User Manual
71
73
75
77
pads.
the
WWW.GRAVITECH.US
The green LED on the module is
illuminating when the power applied. The
power-on LED is enabled from the
manufacture. It can be disabling for light
sensitive or low current requirement
application by remove the solder bridge
on “LED” at the bottom of the module.
DISABLE this option when VCC is
higher than 8.0VDC.
I
up resistors on SDA and SCL pin. I2C-
7SEG come with these two pull-up
resistors enabled from the manufacture. It
can be disabling when connect to I
that already have pull-up resistors by
remove the solder bridge on “I2CPU” at
the bottom of the module.
Power-on LED:
2
I
C bus specification required to have pull-
2
C pull-up resistors:
2
C bus