Seven segment LED displays are brighter, more attractive and provide a far viewing distance as well as a wider viewing angle as compared to LCD displays. The major drawback of using seven segment LED’s is they are resource-hungry. Time-division multiplexing is the most common technique of interfacing 7-segment LED’s to micro-controllers. With this technique, an 8-digit seven segment LED display with the decimal point requires at list 16 I/O pins of the micro-controller, which is quite a lot. Consequently, their use with low pin-count micro-controllers (such as PIC12F series) is not practically feasible.
Tenet Technetronics introduces latest version of the 74HC595 based seven segment LED display module that will allow you to shift 8 digits of seven segment LED displays to your project using only 3 I/O pins, and provides full control of all the digit segments including decimal points.
The display module is based on 74HC595 serial in parallel out shift register display driver chip that provides a 3-wire interface to drive 7-segment LED displays (common-anode type) up to 8 digits.
The SN74HC595 is an 8-bit serial-in parallel out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3 state outputs. Separate clock are provided for both shift and storage register. It has a wide operating voltage from 2V to 6V.
This module can be interfaced with any micro-controller. It has totally 5 pins out of which 2 pins are VCC and ground pins and remaining 3 pins for micro-controller input pins like clock, latch clock and data pins.
Interfacing:
- For more information please visit: tenettech.com
- For technical query please send an e-mail: info@tenettech.com
