atari freddie chip - EAS
- https://en.wikipedia.org/wiki/Atari_FREDDIE
FREDDIE is the name for a 40-pin large scale integrated circuit found in later model Atari 8-bit computers. It is a RAM address multiplexer, used for DRAM access. Atari created this chip to replace several other chips to cut costs and to enhance CPU and ANTIC memory access.
FREDDIE, combined with a C061618 MMU (XL/XE) and C025953 EMMU (130X…Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 1 min
Atari Freddie CPLD – Vintage Computer Center
https://www.vintagecomputercenter.com/product/atari-freddie-cpldApr 23, 2022 · Atari Freddie CPLD full-chip replacement. Designed by Candle`O`Sin; Fully replaces Freddie chip; More info: https://en.wikipedia.org/wiki/Atari_FREDDIE. STEP BY …
- Availability: In stock
- Phone: (559) 492-6318
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- https://www.ebay.com/itm/394075156883
May 17, 2022 · It is standalone version, CPLD based. It directly replaces faulty chip.
Freddie Chip Versions - Atari 8-Bit Computers - AtariAge Forums
https://forums.atariage.com/topic/185719-freddie-chip-versionsAug 02, 2011 · The Freddie chip was used in several different Atari Computers, 130XE, XEGS, 1400XL, 1450XL, etc. AFAIK the Freddie chip was only used in some 800XL's (800XLF) and …
Atari Chips
https://atarihq.com/danb/AtariChips.shtmlIntroduction. A while back Curt Vendel from the Atari History Museum posted a document from Atari, that had a list of chips that were being worked on. Some of them were quite common, but others are a mystery. Below is a cleaned up …
- https://atariage.com/forums/topic/314797-freddie-chip-seems-suddenly-dead
Jan 12, 2021 · After some diagnosis seems to be that FREDDIE is dead. At least there is a good 14.3 MHz input signal, but no 3.57 MHz output to GTIA. As a matter of fact FREDDIE pin 37 …
Freddie chip: why aren't the XE machines faster? - Atari 8-Bit ...
https://forums.atariage.com/topic/316722-freddie...Feb 05, 2021 · From what I understand, Freddie and the faster internal system clock work together so that the ANTIC chip no longer needs to halt the 6502 while it accesses video …
Atari Chips
https://www.atarimax.com/jindroush.atari.org/achip.htmlAtari Chips. Atari Chips. In each model, there is cpu. There is also graphics output consisting of Antic and GTIA processors. For sound output, the Pokey processor is used. PIA takes care of …
Freddie replacement module for XL/XE by Lotharek - retrohax.net
https://retrohax.net/shop/atari/freddie-replacement-module-for-xl-xe-by-lotharekFREDDIE REPLACEMENT – 64k SRAM Module is a requirement!!! Creates OSC clock (3,5X MHz) for GTIA (CLK_IN /4) PAL/NTSC independent; Generates inverted CLK_O for some …
- https://www.atari65xe.com/atari-65xe-motherboard
Feb 27, 2019 · In later models, Atari introduced the FREDDIE chip, which contained 40 pins. It was used to replace other expensive chips to include a RAM address multiplexer for DRAM accessibility. With this chip, the system can …
Images of Atari Freddie chip
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