The MAX7219 is an integrated serial input / output common-cathode
display driver, it is connected to a microprocessor with 8digit 7segment
digital LED display can also be connected to the bar graph display or
64 separate LED. On B BCD encoder including an on chip, multi channel
scanning loop word drive, but also an 8 x 8 static RAM is used to store
each data. Only one external register is used to set the current of each
LED segment.
Specifications:
The module left as an input port to the output port on the right.
The control of a single module, simply input port to the CPU.
Module Operating voltage: 5V.
Module size: 5 cm long X 3.2 cm wide X 1.5 cm high.
With 4 fixed screw holes for easy installation.
Multiple
modules cascade input termination CPU, 2 output termination module, a
module of the input of the input terminal, the output terminal of the
first two modules of the first three modules, and so on ...
For Example:
51 MCU
VCC → 5V
GND → GND
DIN → P22
CS → P21
CLK → P20
Note:
VCC and GND is not reversed, or it would burn the chip!
When
the 51 microcontroller P0 port control, must be connected to the
pull-up resistor, it is recommended that the resistance of 4.7K--10K.
Please
lattice into the hole first seat, and then inserted into the round hole
Block PCB board welding. Lattice word side facing the surface order
from left to right pin 123456. PCB board 1 foot square pad.
Electrolytic
capacitors long-legged as positive, negative short legs; ceramic
capacitor without the positive and negative points.
Package includes:
1 x PCB board
2 x 5P pin sets
1 x 24P IC socket
1 x MAX7219 chip
1 x 10uf electrolytic capacitor
1 x 10kohm resistor
1 x 3mm 8 x 8 common cathode dot matrix
Note: all the descriptions and prices are subject to change without prior notice.
Free Shipping: No
Shipping Weight/Unit(g): 0.00
Std. Packing Qty. (pcs): 1
