Discovered on March 14, 2013

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The Dual timer 556 - one of the oldest integrated circuits still being manufactured. Part of the 555 family, a favourite amongst electronic hobbyists. These chips can be used as timers, oscillators and flip-flops. The silicon elements shown here are acting as transistors, diodes and resistors. The size of this die is 0.2066cm by 0.1576cm.

From the insides of microchips.