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{{national title|COPS I}}
 
{{national title|COPS I}}
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The '''Controller Oriented Processor System I''' or '''COPS I''' (originally just '''COPS''') is a [[microprocessor family|family]] of [[4-bit architecture|4-bit]] [[microcontroller]]s 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 {{national|cops ii|COPS II}}, an NMOS (and later CMOS) versions of those chips.
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{{ic family
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| title            = National COPS I
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| image            = <!-- Image representation of the IC family, e.g. "MCS-4.jpg"  -->
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| caption          = <!-- description of the image                                  -->
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| developer        = National Semiconductor
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| manufacturer      = National Semiconductor
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| type              = microcontrollers
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| production start  = 1976
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| arch              = <!-- architecture, e.g. "4-bit bit-slice"                      -->
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| isa              = COPS
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| word              = 4 bit
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| proc              = <!-- process, e.g. "8 μm"                                      -->
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| tech              = pMOS
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| clock            = <!-- clock speed, e.g. "740 kHz"  IF RANGE, USE PARAM BELOW!  -->
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| clock min        = 340 kHz
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| clock max        = 400 kHz
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| package          = DIP24
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| package 2        = DIP28
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}}
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The '''COPS I''' ('''Controller Oriented Processor System I''') (originally just '''COPS''') was a [[microprocessor family|family]] of {{arch|4}} [[microcontroller]]s 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 {{national|cops ii|COPS II}}, an [[nMOS]] (and later [[CMOS]]) versions of those chips.
  
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The family came in four flavors: ''5781'', ''57129'', ''5799'', ''75140''. The ''5781'' was a multi-chip solution allowing more advanced calculators to be designed. The ''57129'' is a larger version of the ''5781''. The ''5799'' was a single chip equivalent of to the ''5781''/''5782'' system. The ''75140'' contained everything including calculator keyboard input and display driver.
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== Members ==
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The {{\|MM5781}}+{{\|MM5782}} solution allowed for more complex designs whereas the {{\|MM5799}} served as a single-chip solution, albeit more limited. The {{\|MM57140}} was an even more advanced chip incorporating the keyboard input and display driver.
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{| class="wikitable"
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|-
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! Part !! Description
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|-
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| {{\|MM5781}} || [[Control Unit]] (16k ROM)
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|-
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| {{\|MM5129}} ||  [[Control Unit]] (32k ROM)
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|-
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| {{\|MM5782}} ||  Memory and processor
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|-
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| {{\|MM5799}} ||  Single-chip ({{\|MM5781}}+{{\|MM5782}})
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|-
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| {{\|MM57140}} || Single-chip; 630x8-bit ROM, 55x4-bit RAM
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|-
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| {{\|MM5785}} || [[RAM]] interface (between {{\|MM5782}} and {{\|MM5799}})
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|-
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| {{\|MM5788}} || printer interface (for Seiko 102, 104, 210, 220, 101T, 310, 320, et al)
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|-
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| {{\|MM57126}} ||  [[shift register]]
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|}
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== Design ==
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{{empty section}}
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== ISA ==
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{{empty section}}
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== Documents ==
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* [[:File:National COPS Databook (1977).pdf|National COPS Databook, 1977]]
  
  

Latest revision as of 17:29, 5 February 2016

National COPS I
no photo (ic).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 COPS I (Controller Oriented Processor System I) (originally just COPS) was 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[edit]

The MM5781+MM5782 solution allowed for more complex designs whereas the MM5799 served as a single-chip solution, albeit more limited. 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[edit]

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ISA[edit]

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Documents[edit]


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Retrieved from "https://en.wikichip.org/w/index.php?title=national_semiconductor/cops_i&oldid=15413"
Facts about "COPS I - National Semiconductor"
RDF feed
designerNational Semiconductor +
full page namenational semiconductor/cops i +
instance ofmicrocontroller family +
instruction set architectureCOPS +
main designerNational Semiconductor +
manufacturerNational Semiconductor +
nameNational COPS I +
packageDIP24 + and DIP28 +
technologypMOS +
word size4 bit (0.5 octets, 1 nibbles) +