From WikiChip
Editing national semiconductor/imp-4

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.

This page supports semantic in-text annotations (e.g. "[[Is specified as::World Heritage Site]]") to build structured and queryable content provided by Semantic MediaWiki. For a comprehensive description on how to use annotations or the #ask parser function, please have a look at the getting started, in-text annotation, or inline queries help pages.

Latest revision Your text
Line 1: Line 1:
 
{{national title|IMP-4}}
 
{{national title|IMP-4}}
{{ic family
+
The '''National IMP-4''' (originally '''National GPC/P''') is a [[microprocessor family|family]] of multi-chip [[4-bit architecture|4-bit]] [[bit-slice microprocessor|bit-slice]] [[microprocessor]] developed by [[National Semiconductor]] and introduced in 1974. Units could be combined to implement systems with 4 to 32-bit words. The {{national|IMP-8}} and {{national|IMP-16}} families were made using the IMP-4 logic. The IMP-4 had 2 chips: a {{national|IMP-4A/521|control unit}} and an ALU, some systems used the {{national|IMP-00A/520|RALU}} with custom control circuitry. The {{national|IMP-00A/520|RALU}} was the first [[bit-slice microprocessor|bit-slice]] microprocessor - predating both the {{intel|3000}} and the {{amd|am2900}}.
| title            = National IMP-4
 
| image            = <!-- Image representation of the IC family, e.g. "MCS-4.jpg"  -->
 
| caption          = <!-- description of the image                                  -->
 
| developer        = National Semiconductor
 
| manufacturer      = National Semiconductor
 
| production start  = March, 1973
 
| production end    = 1977
 
| release          = March, 1973
 
| arch              = 4-bit bit-slice
 
| word              = 4 bit
 
| proc              = 10 μm
 
| tech              = pMOS
 
| clock min        = 500 kHz
 
| clock max        = 750 kHz
 
| package          = DIP24
 
}}
 
The '''National IMP-4''' (originally '''National GPC/P''') was a [[microprocessor family|family]] of multi-chip [[4-bit architecture|4-bit]] [[bit-slice microprocessor|bit-slice]] [[microprocessor]] developed by [[National Semiconductor]] and introduced in 1973. Units could be combined to implement systems with 4 to 32-bit words. The {{national|IMP-8}} and {{national|IMP-16}} families were made using the IMP-4 logic. The IMP-4 had 2 chips: a {{national|IMP-4A/521|control unit}} and an ALU, some systems used the {{national|IMP-00A/520|RALU}} with custom control circuitry. The {{national|IMP-00A/520|RALU}} was the first [[bit-slice microprocessor|bit-slice]] microprocessor - predating both the {{intel|3000}} and the {{amd|am2900}}.
 
  
==2nd sources==
+
{| class="wikitable" style="float: right;"
[[Rockwel]] was the only 2nd source for the IMP-4 series. Some USSR clones are known to exist.
 
 
 
== Design ==
 
{{empty section}}
 
 
 
== Members ==
 
{| class="wikitable"
 
 
! colspan="3" | Family Members
 
! colspan="3" | Family Members
 
|-
 
|-
Line 37: Line 13:
 
| {{national|IMP-00A/520}} || {{national|IMP-00A/420}} || Register and Arithmetic Logic Unit (RALU)
 
| {{national|IMP-00A/520}} || {{national|IMP-00A/420}} || Register and Arithmetic Logic Unit (RALU)
 
|}
 
|}
 +
 +
==2nd sources==
 +
[[Rockwel]] was the only 2nd source for the IMP-4 series. Some USSR clones are known to exist.
 +
 +
== Design ==
 +
{{empty section}}
  
  
Line 43: Line 25:
 
[[Category:National Semiconductor microprocessors]]
 
[[Category:National Semiconductor microprocessors]]
 
[[Category:4-bit microprocessors]]
 
[[Category:4-bit microprocessors]]
[[Category:1973 microprocessors]]
+
[[Category:1974 microprocessors]]
 
[[Category:microprocessor families]]
 
[[Category:microprocessor families]]
 
[[Category:National IMP-4]]
 
[[Category:National IMP-4]]

Please note that all contributions to WikiChip may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see WikiChip:Copyrights for details). Do not submit copyrighted work without permission!

Cancel | Editing help (opens in new window)

This page is a member of 1 hidden category:

designerNational Semiconductor +
full page namenational semiconductor/imp-4 +
instance ofintegrated circuit family +
main designerNational Semiconductor +
manufacturerNational Semiconductor +
nameNational IMP-4 +
packageDIP24 +
process10,000 nm (10 μm, 0.01 mm) +
technologypMOS +
word size4 bit (0.5 octets, 1 nibbles) +