Tag Archives: CMOS

LCD Display Drivers

Posted on January 8, 2018 by

Over the past year I have pulled apart several old phones. I thought it would be interesting to look at a selection of the LCD display drivers and how they have progressed.I am going to look at three LCD displays, … Continue reading →

Posted in Teardown | Tagged , , , , , , | Comments Off on LCD Display Drivers

HCF4007U Dual Complementary Pair plus Inverter

Posted on December 15, 2017 by

Integrated circuits do not get any simpler than this. This is an HCF4007U made by ST with a week 27 1993 date code According to the datasheet it can be, depending on the pin connections, either 3 inverters, a 3 … Continue reading →

Posted in Die Photo | Tagged , , | Comments Off on HCF4007U Dual Complementary Pair plus Inverter

Maxim 785 Power Supply Controller

Posted on December 3, 2017 by

Another chip from the clamshell iBook from 2000.  Another Maxim power chip, this time it is from the main PCB.   Its a MAX785C which I am pretty sure is a dual (3.3V & 5V) PWM buck regulator for laptop … Continue reading →

Posted in Die Photo | Tagged , , , , , , | 4 Comments

Motorola MPC17A85V

Posted on November 14, 2017 by

This is a die photo from a 1994 Motorola chip that was on the JVC Camcorder I looked at.     The package labeling of XPC differs from the die marking of MPC. I understand that Motorola would launch a … Continue reading →

Posted in Die Photo | Tagged , | Comments Off on Motorola MPC17A85V