Semiconductor & Computer Engineering
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Difference between revisions of "national semiconductor/cops i"
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| {{\|MM5799}} || Single-chip ({{\|MM5781}}+{{\|MM5782}}) | | {{\|MM5799}} || Single-chip ({{\|MM5781}}+{{\|MM5782}}) | ||
|- | |- | ||
| − | | {{\|MM57140}} || | + | | {{\|MM57140}} || Single-chip; 630x8-bit ROM, 55x4-bit RAM |
|- | |- | ||
| {{\|MM5785}} || [[RAM]] interface (between {{\|MM5782}} and {{\|MM5799}}) | | {{\|MM5785}} || [[RAM]] interface (between {{\|MM5782}} and {{\|MM5799}}) | ||
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== ISA == | == ISA == | ||
{{empty section}} | {{empty section}} | ||
| + | == Documents == | ||
| + | * [[:File:National COPS Databook (1977).pdf|National COPS Databook, 1977]] | ||
Revision as of 20:56, 4 February 2016
| National COPS I | |
.svg)
| |
| Developer | National Semiconductor |
| Manufacturer | National Semiconductor |
| Type | microcontrollers |
| Production | 1976 |
| ISA | COPS |
| Word size | 4 bit 0.5 octets
1 nibbles |
| Technology | pMOS |
| Clock | 340 kHz-400 kHz |
| Package | DIP24, DIP28 |
The Controller Oriented Processor System I or COPS I (originally just COPS) is a family of 4-bit microcontrollers developed by National Semiconductor. COPS, as it was originally called, was released to the market in 1976. It was manufactured in PMOS technology. A year later, National introduced the COPS II, an nMOS (and later CMOS) versions of those chips.
Contents
Members
The MM5781+MM5782 solution allowed for more complex designs whereas the MM5799 served as a single-chip solution. The MM57140 was an even more advanced chip incorporating the keyboard input and display driver.
| Part | Description |
|---|---|
| MM5781 | Control Unit (16k ROM) |
| MM5129 | Control Unit (32k ROM) |
| MM5782 | Memory and processor |
| MM5799 | Single-chip (MM5781+MM5782) |
| MM57140 | Single-chip; 630x8-bit ROM, 55x4-bit RAM |
| MM5785 | RAM interface (between MM5782 and MM5799) |
| MM5788 | printer interface (for Seiko 102, 104, 210, 220, 101T, 310, 320, et al) |
| MM57126 | shift register |
Design
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This section is empty; you can help add the missing info by editing this page. |
ISA
| |
This section is empty; you can help add the missing info by editing this page. |
Documents
 |
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. |
Facts about "COPS I - National Semiconductor"
| designer | National Semiconductor + |
| full page name | national semiconductor/cops i + |
| instance of | microcontroller family + |
| instruction set architecture | COPS + |
| main designer | National Semiconductor + |
| manufacturer | National Semiconductor + |
| name | National COPS I + |
| package | DIP24 + and DIP28 + |
| technology | pMOS + |
| word size | 4 bit (0.5 octets, 1 nibbles) + |