Product Overview
Intel 8203 64K DRAM Controller for 2117, 2118 and 2164 Memory on iAPX 86/88 Systems
Condition
Unused new old stock (NOS). Sold each. Markings legible: D8203 S4816 / 106989-002 / V2260015 / © INTEL '81, with the Intel logo.
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Product Overview
Intel D8203 is the 64K dynamic RAM controller in a 40-pin ceramic DIP, built to sit between an 8080A, 8085A, iAPX 88 or iAPX 86 processor and a bank of 2117, 2118 or 2164 DRAM.
Key Features
- Device: Intel 8203 64K dynamic RAM controller
- Memory supported: Intel 2117, 2118 and 2164 DRAM
- Processors: 8080A, 8085A, iAPX 88 and iAPX 86
- Package: 40-pin ceramic DIP
- Supply: 5.0 V nominal, 290 mA maximum supply current
- Operating temperature: 0 to 70 C
- Lifecycle: discontinued by Intel
Applications
- Fitting an 8203 back into the DRAM controller position on an iAPX 86 or 88 single-board computer or memory card
- Matching the original part number on a restoration where the board's parts list names the 8203
- Building an 8085A or 8088 hobby system around 2164 DRAM instead of static RAM
Frequently Asked Questions
Is this the D8203-1 or the D8203-3?
Neither. The body reads D8203 with no speed suffix after the number.
Which DRAM chips does the 8203 control?
Intel 2117, 2118 and 2164. With external drivers it addresses up to half a megabyte of 2164A.
Dynamic RAM forgets unless something visits every row on schedule, and the 8203 makes those rounds so the processor can get on with its own work. Seat it in the controller socket and let it keep the rounds.
