TM 2 I2C-7SEG I C 4-DIGIT 7-SEGMENT DISPLAY User Manual GRAVITECH.US uResearch GRAVITECH GROUP Copyright 2007 MicroResearch GRAVITECH GROUP WWW.GRAVITECH.US TM 2 I2C-7SEG I C 4-DIGIT 7-SEGMENT DISPLAY User Manual Description Features The I2C-7SEG board is a 5-pin CMOS Five colors to choose from (green, device that provides 4-digit of 7-segment red, orange, orange/red and 2 display using IC bus. There are no yellow) external components required. Only two Flicker free multiplexed 7-segment signal lines SDA and SCL plus supply display voltage and ground are required to be Total control of individual segment connected. This makes it perfect for Display brightness controllable by embedded systems that require LED software display. Automatically refreshes and updates each display digit This board features innovations that set it Free up host controller for apart from other 7-segment module. continuous display updates and 2 Innovations feature like on-board I C refresh loops address jumpers, pull-up resistors and Stand alone module, no external power LED. The module can be quickly components required connected directly on to the breadboard. 2 On-board IC address jumpers, The board is small and compact in size pull-up resistors and power LED 1.50 x 2.05 inches. Decoupling supply voltage Design easy for breadboard The I2C-7SEG is designed base on High quality double sided PCB SAA1064 IC. The circuit is especially All SMT components designed to drive four 7-segment LED Small and compact in size 1.50 x displays with decimal point by means of 2.05 inches multiplexing between two pairs of digits. It 2 Single row 0.4 width, 0.1 pitch features an I C bus slave transceiver header pins interface with the possibility to program Flexible operating power supply four different SLAVE ADDRESSES, a voltage range of 4.5V to 15V POWER RESET flag, 16 current sink Suitable for 5.0V microcontroller OUTPUTS, controllable by software up to 21 mA, two multiplex drive outputs for common anode segments, an on-chip multiplex oscillator, control bits to select Applications static, dynamic and blank mode, and one bit for segment test. Any display applications 2 A jumper pins vary the fixed I C address and allow up to four devices to share the 2 2 * I C is a trademark of Philips Semiconductors Corporation. same I C bus. Copyright 2007 MicroResearch GRAVITECH GROUP WWW.GRAVITECH.US