Gold in Processor Chips

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 MC145402 13-bit A / D and D / A converter for use in modems. A very large structure!

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

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4017 10-stage Johnson counter. Year Year unknown.











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

4052 Two 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.











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











8-input NAND gate. Manufacturer: Motorola.

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











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

4572













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











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











4-bit digital comparator. Supports comparison>, =, <, and has a strobe input. Manufacturer: National Semiconductor, year 1983.

5407 Six open collector buffer. Enhanced version of temperaturnowym, ie from-55'C to 125'C. The system was flooded with silicone, so the picture is blurred.











ETC5057 Codec, filter, A / D and D / A. There are several versions that differ in the number of terminals. Here you see a cheaper version. Notice the pins that are connected to wires - in all versions of the same structure. In the upper right corner you will see a field test. A very large structure. Manufacturer: ST Microelectronics.























Microcontrollers The microcontroller is a processor with built-in memory, ports, timers and other peripherals. Systems with this characteristic window of EPROM MCUs - to erase the memory of the structure of the integrated UV irradiate. Systems of this type for collectors are especially valuable because of its visual :)











8049 This is a version of the 8048 microcontroller, which is two times more RAM than the original, namely 128 bytes. Capacity 2kB ROM is mask programmable circuits in the production structure.

8051











8742 Similar to 8741, but with twice the memory, ROM and RAM, the 2kB and 128B.











8751 8051 microcontroller version of the EPROM.











87C51HB Manufacturer: Intel As above, but in the case of dense DIL64 pin pitch.























PIC12CE519 Very small microcontroller with memory EPROM. One interesting thing in this system - it has to merge two structures? Greater is connected to eight feet, and the other connects to the larger four wires. I do not know what exactly is this mysterious smaller structure, but examination under a microscope ruled out the hypothesis that it is a memory block.































Other integrated circuits

Bridge MK6010

































Gold in Processor Chips

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