What IC is in this particular black blob on my pocket calculator?

Question

circuit inside the calculator

I've taken apart my pocket calculator, and I'd like to know what IC is inside the black blob. Is there an IC commonly used in such applications?

thank you..I didn't know the name of it before... – Wupadrasta Santosh Mar 20 '14 at 08:09 — Wupadrasta Santosh, Mar 20 '14 at 08:09

score 1 · Answer 1 · answered Mar 20 '14 at 10:36

1

This is the main controller part of the circuit. Mainly it is found in LCD Displays. eg ST7920

please check it out enter image description here

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answered Mar 20 '14 at 10:36

BASIL VARGHESE

That's an example of the same packaging technology, yes, but a fairly different circuit. The one on the calculator is mostly calculator, with a more trivial segment driver. – Chris Stratton Mar 20 '14 at 14:12

1 Answers1