VOGONS


First post, by keenerb

User metadata
Rank Oldbie
Rank
Oldbie

L_00011277.jpg

There's no "notch" in the end like typical ICs. I'm assuming the notch would be to the left when chip text is in normal orientation (as in this photo) but I dont really have any idea...

Reply 1 of 5, by snufkin

User metadata
Rank Oldbie
Rank
Oldbie

Maybe you could try checking if there's a short between pin 1 & 20? I think they should both be Gnd. On the other side they'd be Vcc and Reset.

[edit: Ah, scratch that, apparently they're not connected internally]

Last edited by snufkin on 2021-04-21, 13:51. Edited 1 time in total.

Reply 4 of 5, by keropi

User metadata
Rank l33t++
Rank
l33t++

just FYI , that embossed line across the chip (or in another form a slanted edge) indicates the side where pin1 is
the pic makes it look like this chip has both the stripe and slanted edge but it could be just the angle

🎵 🎧 PCMIDI MPU , OrpheusII , Action Rewind , Megacard and 🎶GoldLib soundcard website