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Author Topic: Another old AMI Chip  (Read 986 times)

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Offline MisterDulisterTopic starter

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Another old AMI Chip
« on: February 11, 2022, 05:17:42 pm »
Hi, after reading this: https://www.eevblog.com/forum/microcontrollers/old-mystery-chip-(ami)/ i registered to this forum, because i have a similar chip which i cant find any information about. Maybe here is someone who can help me figure out what it is? I have like 5 of them. I once got a box full of ICs as a gift where they were included. Many thanks already.
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Offline cdev

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Re: Another old AMI Chip
« Reply #1 on: February 11, 2022, 05:32:45 pm »
Maybe it's an old AMI BIOS chip?
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Offline harerod

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Re: Another old AMI Chip
« Reply #2 on: February 11, 2022, 05:46:12 pm »
September 1976, a vintage S1757 UART.
On sale on ebay. Search term:  "S1757 ami"
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Offline MisterDulisterTopic starter

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Re: Another old AMI Chip
« Reply #3 on: February 11, 2022, 06:18:11 pm »
Mhm sounds intersting: 'It includes the pictured also very vintage AMI S1757 ceramic CPU with grey trace. '
But I think I wont get any datasheet of this...?
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Offline wek

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Re: Another old AMI Chip
« Reply #4 on: February 12, 2022, 08:37:11 am »
It appears to be a UART from American Microsystems.

JW
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