From WikiChip
μCOM-43 - NEC
< nec
Revision as of 23:54, 18 May 2016 by Jon (talk | contribs)

NEC μCOM-43 Family
no photo (ic).svg
Developer NEC
Manufacturer NEC
Type Microcontrollers
Production May, 1977
Architecture 4-bit word, 10-bit instructions
Word size 4 bit
0.5 octets
1 nibbles
Technology pMOS
Clock 150 kHz-440 kHz
Package DIP42

The μCOM-43 (or uCOM-43) was family of general-purpose 4-bit microcontrollers, part of the μCOM-4 extended family. The μCOM-43 offered real hardware interrupt capabilities (as opposed to pseudo in the μCOM-44 and μCOM-45).


μCOM-43 Microcontrollers
μCOM-43μPD54619772000x10 bit96x4 bit42
μCOM-43HμPD55319782000x8 bit96x4 bit42
EVACHIP-43μPD556 μPD556B197796x4 bit64
μCOM-43SLμPD557L19812000x8 bit96x4 bit28
μCOM-43CμPD65019782000x10 bit96x4 bit42


New text document.svg This section is empty; you can help add the missing info by editing this page.

μCOM-43 Instruction Set

Main article: μCOM-4 ISA

The μCOM-43 ISA supported the entire μCOM-4 ISA which included 80 instructions.

See Also

Text document with shapes.svg 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 "μCOM-43 - NEC"
designerNEC +
full page namenec/μcom-43 +
instance ofmicrocontroller family +
instruction set architectureμCOM-4 +
main designerNEC +
manufacturerNEC +
nameNEC μCOM-43 Family +
packageDIP42 +
technologypMOS +
word size4 bit (0.5 octets, 1 nibbles) +