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Difference between revisions of "fujitsu/mb8840"
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− | {{fujitsu title|MB8840/MB8840H | + | {{fujitsu title|MB8840/MB8840H}} |
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| title = MB8840/MB8840H Family | | title = MB8840/MB8840H Family |
Revision as of 21:42, 3 February 2016
MB8840/MB8840H Family | |
Developer | Fujitsu |
Manufacturer | Fujitsu |
Production | 1977-1992 |
ISA | MB8850 |
Word size | 4 bit 0.5 octets
1 nibbles |
Technology | nMOS |
Clock | 1 MHz-6 MHz |
Package | DIP42, DIP28, QFP48 |
The MB8840/MB8840H series is a family of 4-bit nMOS microcontrollers developed by Fujitsu and introduced in 1977[off?]. This series was very popular for arcade games (e.g. some Atari's Namco Galaga/Xevious systems). This series is architecturally identical to the MB8850 family (A CMOS version).
Contents
Members
The "H" versions are identical to their non-"H" counterparts but aimed to be "high performance", capable of operating at higher frequency (up to 8 MHz).
Family Members | |||||
---|---|---|---|---|---|
Part | ROM | RAM | I/O Ports | Instructions | Notes |
MB8841 | 2kx8 bit | 128x4-bit | 37 | 70 | |
MB8842 | 2kx8 bit | 128x4 bit | 25 | 69 | |
MB8843 | 1kx8 bit | 64x4 bit | 37 | 70 | |
MB8844 | 1kx8 bit | 64x4 bit | 25 | 69 | |
MB8845 | 2kx8 bit | 128x4-bit | 37 | 70 | |
MB8846 | 2kx8 bit | 128x4-bit | 25 | 69 | |
MB8847 | 1kx8 bit | 64x4 bit | 37 | 70 | |
MB8848 | 1kx8 bit | 64x4 bit | 25 | 69 |
ISA
- Main article: MB8850 ISA
The MB8840 has an identical ISA to that of the MB8850.
Documents
See also
This article is still a stub and needs your attention. You can help improve this article by editing this page and adding the missing information. |
Warning: Default sort key "MB8840" overrides earlier default sort key "MB8840/MB8840H, Fujitsu".
Facts about "MB8840 - Fujitsu"
designer | Fujitsu + |
full page name | fujitsu/mb8840 + |
instance of | integrated circuit family + |
instruction set architecture | MB8850 + |
main designer | Fujitsu + |
manufacturer | Fujitsu + |
name | MB8840/MB8840H Family + |
package | DIP42 +, DIP28 + and QFP48 + |
technology | nMOS + |
word size | 4 bit (0.5 octets, 1 nibbles) + |