Category Archives: Icy Friday

IC Friday: 74AS04

I have many AS and LS series logic gates lying around, so I figured that I would image some as they would be more instructive than looking at the latest CPUs coming out of Intel. I have a few more lined up so please comment if you want me to follow this reasoning. Today’s subject is a hex-inverter, the 74AS04. Below are images of the whole chip and a blowup of the top-right inverter gate.

IC Friday: TI’s nSpire

Now that I have everything unpacked, the IC Friday program can resume. Today’s a nSpire processor sent in by Travis Goodspeed. Two notes of interest are the prominent LSI LOGIC badging and the dual CHIPIDEA cores. The model number looks like CI12320, but that is not listed on their page.

IC Friday: NDS Cryprocard

Today’s IC Friday is another reader-submitted chip. This is cryptoworks six-pin smartcard. The only writing on it is “TUBEAV A”.

IC Friday: Mitsubishi M5K4164

Today’s entry is an old memory chip from Mitsubishi, the M5K4164. This is another chip submitted by a reader, again, all the way from Iceland.

HOW TO: write an IC Friday post

As I promised, here is a outline of the steps I go through to make the weekly IC Friday posts. First, a word of caution:

Handling sulfuric acid REQUIRES specialized training and equipment. Misuse can result in serious injury or death. Furthermore, improper disposal can cause serious illness to others and permanent damage to your workspace. Finally, adequate ventilation/fume extraction is a MUST when heating sulfuric acid.

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IC Friday: Atmega’s 8535

Today’s IC Friday entry is the 8bit AVR micro from Atmega. This chip was sent in by a reader, all the way from Iceland.

IC Friday: TI’s MSP430F161

This weeks target is the MSP430F161(1). On a side note, I will be attending the last Hope conference in a few weeks and am looking forward to Travis Goodspeed’s MSP430 talk.

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IC Friday: National Semiconductor’s LMC6042

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Today’s entry is the LMC6042 dual-op amp from National Semiconductor. The layout of this device is a bit different from a standard op-amp due to the inclusion of some periodic components. It can also be noted that this die is mostly the same as the LMC6044 except that the two op-amps on the bottom-right side of the chip don’t have most of the metal deposited.

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