Sebenarnya seven segment tersusun dari 8 buah led yang dibentuk menyerupai angka 8 yang terdiri dari 7 segmen dan ditambah 1 segmen berupa titik (dot). Untuk mendapatkan datasheet penampil seven segment silakan download disini. Segment Digit LED Display . ShenZhen Wayjun Technology Co.,Ltd - 4 - www.wayjun.com . 1. 7 Segment Single Digit LED Display . 1.1 Common Anode 0.36 Inch (9.14mm) PRODUCT DESCRIPTION (1) 0.36 Inch (9.14mm) Digit Height (2) Low current operation (3) Excellent color and font characteristics (4) Colors: White, blue, red, yellow and green

The J-K flip-flop is the most versatile of the basic flip-flops. It has the input- following character of the clocked D flip-flop but has two inputs,traditionally labeled J and K. If J and K are different then the output Q takes the value of J at the next clock edge.