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COPS I - National Semiconductor
National COPS I | |
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.
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 |
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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ISA
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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) + |