Introduce a new series of images of structures integrated circuits. In this category there are systems very old, dating from 1970 to 1980. Because they are in CERDIP type enclosures, two ceramic plates connected by an adhesive, very easy to open them - just split them skillfully. Despite the opening, these systems still work! Old systems have transistors so great that some even to the naked eye can see. In this way, all photos are very clear and with a little insight into the topic, can discern the elements such as gates and flip-flops.

Motorola MC14540213-bit A / D and D / A converter for use in modems. A very large structure!

4066Four analog keys. They are visible in the picture.

401710-stage Johnson counter. Year unknown.

4029

One of the best series of 4000 meters. Counts up, down, BCD or BIN. The structure lies on a golden plate. In the upper right corner you will see a field test.

4052Two 4-channel multiplexers. To the right is the control logic on the left are 8 analogue keys. Manufacturer: Motorola. Year: 1980. Below is the same, but manufactured by Phillips.

4066Four analog keys. Designers have designed only one key, and the other formed by symmetry. Year: 1982.

4068

8-input NAND gate. Manufacturer: Motorola.

4075Three 3-Input OR Gate. On the right you will see three large ridges, it is likely that the output stage.

4077Four XNOR gate. Manufacturer: Fairchild. Year: 1980.

4081Four 2-input AND gate. You can see four goals very clearly.

4572Six different goals: 2xNOT, NAND and NOR. The structure was covered with silicone. Manufacturer: Phillips

74 197Fast 100MHz counter. I have two versions of the various manufacturers.

75 450The system interfaced to high voltage. It includes two transistors and two 30V/800mW NAND gates. Transistors are made in the form of combs.

DM8200

4-bit digital comparator. Supports comparison>, =,